diff --git a/Cargo.lock b/Cargo.lock
index 0bb4612af..f316fa70d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4,19 +4,13 @@ version = 3
 
 [[package]]
 name = "addr2line"
-version = "0.22.0"
+version = "0.24.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6e4503c46a5c0c7844e948c9a4d6acd9f50cccb4de1c48eb9e291ea17470c678"
+checksum = "f5fb1d8e4442bd405fdfd1dacb42792696b0cf9cb15882e5d097b742a676d375"
 dependencies = [
  "gimli",
 ]
 
-[[package]]
-name = "adler"
-version = "1.0.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
-
 [[package]]
 name = "adler2"
 version = "2.0.0"
@@ -52,9 +46,9 @@ dependencies = [
 
 [[package]]
 name = "anstyle"
-version = "1.0.7"
+version = "1.0.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "038dfcf04a5feb68e9c60b21c9625a54c2c0616e79b72b0fd87075a056ae1d1b"
+checksum = "1bec1de6f59aedf83baf9ff929c98f2ad654b97c9510f4e70cf6f661d49fd5b1"
 
 [[package]]
 name = "anyhow"
@@ -81,18 +75,18 @@ checksum = "16e62a023e7c117e27523144c5d2459f4397fcc3cab0085af8e2224f643a0193"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.66",
+ "syn 2.0.77",
 ]
 
 [[package]]
 name = "async-trait"
-version = "0.1.80"
+version = "0.1.82"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c6fa2087f2753a7da8cc1c0dbfcf89579dd57458e36769de5ac750b4671737ca"
+checksum = "a27b8a3a6e1a44fa4c8baf1f653e4172e81486d4941f2237e20dc2d0cf4ddff1"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.66",
+ "syn 2.0.77",
 ]
 
 [[package]]
@@ -164,17 +158,17 @@ dependencies = [
 
 [[package]]
 name = "backtrace"
-version = "0.3.73"
+version = "0.3.74"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5cc23269a4f8976d0a4d2e7109211a419fe30e8d88d677cd60b6bc79c5732e0a"
+checksum = "8d82cb332cdfaed17ae235a638438ac4d4839913cc2af585c3c6746e8f8bee1a"
 dependencies = [
  "addr2line",
- "cc",
  "cfg-if",
  "libc",
- "miniz_oxide 0.7.3",
+ "miniz_oxide",
  "object",
  "rustc-demangle",
+ "windows-targets 0.52.6",
 ]
 
 [[package]]
@@ -215,9 +209,9 @@ checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
 [[package]]
 name = "bitflags"
-version = "2.5.0"
+version = "2.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cf4b9d6a944f767f8e5e0db018570623c85f3d925ac718db4e06d0187adb21c1"
+checksum = "b048fb63fd8b5923fc5aa7b340d8e156aec7ec02f0c78fa8a6ddc2613f6f71de"
 dependencies = [
  "bytemuck",
  "serde",
@@ -273,7 +267,7 @@ dependencies = [
  "proc-macro-crate",
  "proc-macro2",
  "quote",
- "syn 2.0.66",
+ "syn 2.0.77",
  "syn_derive",
 ]
 
@@ -285,22 +279,22 @@ checksum = "79296716171880943b8470b5f8d03aa55eb2e645a4874bdbb28adb49162e012c"
 
 [[package]]
 name = "bytemuck"
-version = "1.16.0"
+version = "1.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "78834c15cb5d5efe3452d58b1e8ba890dd62d21907f867f383358198e56ebca5"
+checksum = "94bbb0ad554ad961ddc5da507a12a29b14e4ae5bda06b19f575a3e6079d2e2ae"
 dependencies = [
  "bytemuck_derive",
 ]
 
 [[package]]
 name = "bytemuck_derive"
-version = "1.7.0"
+version = "1.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1ee891b04274a59bd38b412188e24b849617b2e45a0fd8d057deb63e7403761b"
+checksum = "0cc8b54b395f2fcfbb3d90c47b01c7f444d94d05bdeb775811dec868ac3bbc26"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.66",
+ "syn 2.0.77",
 ]
 
 [[package]]
@@ -311,18 +305,21 @@ checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
 
 [[package]]
 name = "bytes"
-version = "1.6.0"
+version = "1.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "514de17de45fdb8dc022b1a7975556c53c86f9f0aa5f534b98977b171857c2c9"
+checksum = "428d9aa8fbc0670b7b8d6030a7fadd0f86151cae55e4dbbece15f3780a3dfaf3"
 dependencies = [
  "serde",
 ]
 
 [[package]]
 name = "cc"
-version = "1.0.99"
+version = "1.1.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "96c51067fd44124faa7f870b4b1c969379ad32b2ba805aa959430ceaa384f695"
+checksum = "07b1695e2c7e8fc85310cde85aeaab7e3097f593c91d209d3f9df76c928100f0"
+dependencies = [
+ "shlex",
+]
 
 [[package]]
 name = "cfg-if"
@@ -345,14 +342,14 @@ dependencies = [
  "android-tzdata",
  "iana-time-zone",
  "num-traits",
- "windows-targets 0.52.5",
+ "windows-targets 0.52.6",
 ]
 
 [[package]]
 name = "clap"
-version = "4.5.7"
+version = "4.5.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5db83dced34638ad474f39f250d7fea9598bdd239eaced1bdf45d597da0f433f"
+checksum = "3e5a21b8495e732f1b3c364c9949b201ca7bae518c502c80256c96ad79eaf6ac"
 dependencies = [
  "clap_builder",
  "clap_derive",
@@ -360,9 +357,9 @@ dependencies = [
 
 [[package]]
 name = "clap_builder"
-version = "4.5.7"
+version = "4.5.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f7e204572485eb3fbf28f871612191521df159bc3e15a9f5064c66dba3a8c05f"
+checksum = "8cf2dd12af7a047ad9d6da2b6b249759a22a7abc0f474c1dae1777afa4b21a73"
 dependencies = [
  "anstyle",
  "clap_lex",
@@ -370,21 +367,21 @@ dependencies = [
 
 [[package]]
 name = "clap_derive"
-version = "4.5.5"
+version = "4.5.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c780290ccf4fb26629baa7a1081e68ced113f1d3ec302fa5948f1c381ebf06c6"
+checksum = "501d359d5f3dcaf6ecdeee48833ae73ec6e42723a1e52419c79abf9507eec0a0"
 dependencies = [
  "heck",
  "proc-macro2",
  "quote",
- "syn 2.0.66",
+ "syn 2.0.77",
 ]
 
 [[package]]
 name = "clap_lex"
-version = "0.7.1"
+version = "0.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4b82cf0babdbd58558212896d1a4272303a57bdb245c2bf1147185fb45640e70"
+checksum = "1462739cb27611015575c0c11df5df7601141071f07518d56fcc1be504cbec97"
 
 [[package]]
 name = "core-foundation"
@@ -398,15 +395,15 @@ dependencies = [
 
 [[package]]
 name = "core-foundation-sys"
-version = "0.8.6"
+version = "0.8.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "06ea2b9bc92be3c2baa9334a323ebca2d6f074ff852cd1d7b11064035cd3868f"
+checksum = "773648b94d0e5d620f64f280777445740e61fe701025087ec8b57f45c791888b"
 
 [[package]]
 name = "cpufeatures"
-version = "0.2.12"
+version = "0.2.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "53fe5e26ff1b7aef8bca9c6080520cfb8d9333c7568e1829cef191a9723e5504"
+checksum = "608697df725056feaccfa42cffdaeeec3fccc4ffc38358ecd19b243e716a78e0"
 dependencies = [
  "libc",
 ]
@@ -529,7 +526,7 @@ dependencies = [
 name = "cuprate-blockchain"
 version = "0.0.0"
 dependencies = [
- "bitflags 2.5.0",
+ "bitflags 2.6.0",
  "bytemuck",
  "cuprate-database",
  "cuprate-database-service",
@@ -543,6 +540,7 @@ dependencies = [
  "monero-serai",
  "pretty_assertions",
  "proptest",
+ "rand",
  "rayon",
  "serde",
  "tempfile",
@@ -701,6 +699,7 @@ version = "0.1.0"
 dependencies = [
  "chrono",
  "crossbeam",
+ "curve25519-dalek",
  "dirs",
  "futures",
  "libc",
@@ -724,7 +723,7 @@ dependencies = [
 name = "cuprate-levin"
 version = "0.1.0"
 dependencies = [
- "bitflags 2.5.0",
+ "bitflags 2.6.0",
  "bytes",
  "cuprate-helper",
  "futures",
@@ -864,7 +863,7 @@ dependencies = [
 name = "cuprate-txpool"
 version = "0.0.0"
 dependencies = [
- "bitflags 2.5.0",
+ "bitflags 2.6.0",
  "bytemuck",
  "cuprate-database",
  "cuprate-database-service",
@@ -901,7 +900,7 @@ dependencies = [
 name = "cuprate-wire"
 version = "0.1.0"
 dependencies = [
- "bitflags 2.5.0",
+ "bitflags 2.6.0",
  "bytes",
  "cuprate-epee-encoding",
  "cuprate-fixed-bytes",
@@ -918,7 +917,7 @@ version = "0.1.0"
 dependencies = [
  "anyhow",
  "async-trait",
- "bitflags 2.5.0",
+ "bitflags 2.6.0",
  "borsh",
  "bytemuck",
  "bytes",
@@ -1004,7 +1003,7 @@ checksum = "f46882e17999c6cc590af592290432be3bce0428cb0d5f8b6715e4dc7b383eb3"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.66",
+ "syn 2.0.77",
 ]
 
 [[package]]
@@ -1087,17 +1086,6 @@ dependencies = [
  "windows-sys 0.48.0",
 ]
 
-[[package]]
-name = "displaydoc"
-version = "0.2.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "487585f4d0c6655fe74905e2504d8ad6908e4db67f744eb140876906c2f3175d"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn 2.0.66",
-]
-
 [[package]]
 name = "doxygen-rs"
 version = "0.4.2"
@@ -1109,9 +1097,9 @@ dependencies = [
 
 [[package]]
 name = "either"
-version = "1.12.0"
+version = "1.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3dca9240753cf90908d7e4aac30f630662b02aebaa1b58a3cadabdb23385b58b"
+checksum = "60b1af1c220855b6ceac025d3f6ecdd2b7c4894bfe9cd9bda4fbb4bc7c0d4cf0"
 
 [[package]]
 name = "equivalent"
@@ -1131,9 +1119,9 @@ dependencies = [
 
 [[package]]
 name = "fastrand"
-version = "2.1.0"
+version = "2.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9fc0510504f03c51ada170672ac806f1f105a88aa97a5281117e1ddc3368e51a"
+checksum = "e8c02a5121d4ea3eb16a80748c74f5549a5665e4c21333c6098f283870fbdea6"
 
 [[package]]
 name = "ff"
@@ -1159,7 +1147,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "324a1be68054ef05ad64b861cc9eaf1d623d2d8cb25b4bf2cb9cdd902b4bf253"
 dependencies = [
  "crc32fast",
- "miniz_oxide 0.8.0",
+ "miniz_oxide",
 ]
 
 [[package]]
@@ -1240,7 +1228,7 @@ checksum = "87750cf4b7a4c0625b1529e4c543c2182106e4dedc60a2a6455e00d212c489ac"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.66",
+ "syn 2.0.77",
 ]
 
 [[package]]
@@ -1296,9 +1284,9 @@ dependencies = [
 
 [[package]]
 name = "gimli"
-version = "0.29.0"
+version = "0.31.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "40ecd4077b5ae9fd2e9e169b102c6c330d0605168eb0e8bf79952b256dbefffd"
+checksum = "32085ea23f3234fc7846555e85283ba4de91e21016dc0455a16286d87a292d64"
 
 [[package]]
 name = "group"
@@ -1347,11 +1335,11 @@ checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
 
 [[package]]
 name = "heed"
-version = "0.20.2"
+version = "0.20.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f60d7cff16094be9627830b399c087a25017e93fb3768b87cd656a68ccb1ebe8"
+checksum = "7d4f449bab7320c56003d37732a917e18798e2f1709d80263face2b4f9436ddb"
 dependencies = [
- "bitflags 2.5.0",
+ "bitflags 2.6.0",
  "byteorder",
  "heed-traits",
  "heed-types",
@@ -1372,9 +1360,9 @@ checksum = "eb3130048d404c57ce5a1ac61a903696e8fcde7e8c2991e9fcfc1f27c3ef74ff"
 
 [[package]]
 name = "heed-types"
-version = "0.20.0"
+version = "0.20.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3cb0d6ba3700c9a57e83c013693e3eddb68a6d9b6781cacafc62a0d992e8ddb3"
+checksum = "9d3f528b053a6d700b2734eabcd0fd49cb8230647aa72958467527b0b7917114"
 dependencies = [
  "bincode",
  "byteorder",
@@ -1414,9 +1402,9 @@ dependencies = [
 
 [[package]]
 name = "http-body"
-version = "1.0.0"
+version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1cac85db508abc24a2e48553ba12a996e87244a0395ce011e62b37158745d643"
+checksum = "1efedce1fb8e6913f23e0c92de8e62cd5b772a67e7b3946df930a62566c93184"
 dependencies = [
  "bytes",
  "http",
@@ -1437,9 +1425,9 @@ dependencies = [
 
 [[package]]
 name = "httparse"
-version = "1.9.3"
+version = "1.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d0e7a4dd27b9476dc40cb050d3632d3bba3a70ddbff012285f7f8559a1e7e545"
+checksum = "0fcc0b4a115bf80b728eb8ea024ad5bd707b615bfed49e0665b6e0f86fd082d9"
 
 [[package]]
 name = "httpdate"
@@ -1449,9 +1437,9 @@ checksum = "df3b46402a9d5adb4c86a0cf463f42e19994e3ee891101b1841f30a545cb49a9"
 
 [[package]]
 name = "hyper"
-version = "1.3.1"
+version = "1.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fe575dd17d0862a9a33781c8c4696a55c320909004a67a00fb286ba8b1bc496d"
+checksum = "50dfd22e0e76d0f662d429a5f80fcaf3855009297eab6a0a9f8543834744ba05"
 dependencies = [
  "bytes",
  "futures-channel",
@@ -1470,9 +1458,9 @@ dependencies = [
 
 [[package]]
 name = "hyper-rustls"
-version = "0.27.2"
+version = "0.27.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5ee4be2c948921a1a5320b629c4193916ed787a7f7f293fd3f7f5a6c9de74155"
+checksum = "08afdbb5c31130e3034af566421053ab03787c640246a446327f550d11bcb333"
 dependencies = [
  "futures-util",
  "http",
@@ -1488,9 +1476,9 @@ dependencies = [
 
 [[package]]
 name = "hyper-util"
-version = "0.1.5"
+version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7b875924a60b96e5d7b9ae7b066540b1dd1cbd90d1828f54c92e02a283351c56"
+checksum = "da62f120a8a37763efb0cf8fdf264b884c7b8b9ac8660b900c8661030c00e6ba"
 dependencies = [
  "bytes",
  "futures-channel",
@@ -1508,9 +1496,9 @@ dependencies = [
 
 [[package]]
 name = "iana-time-zone"
-version = "0.1.60"
+version = "0.1.61"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e7ffbb5a1b541ea2561f8c41c087286cc091e21e556a4f09a8f6cbf17b69b141"
+checksum = "235e081f3925a06703c2d0117ea8b91f042756fd6e7a6e5d901e8ca1a996b220"
 dependencies = [
  "android_system_properties",
  "core-foundation-sys",
@@ -1529,141 +1517,21 @@ dependencies = [
  "cc",
 ]
 
-[[package]]
-name = "icu_collections"
-version = "1.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "db2fa452206ebee18c4b5c2274dbf1de17008e874b4dc4f0aea9d01ca79e4526"
-dependencies = [
- "displaydoc",
- "yoke",
- "zerofrom",
- "zerovec",
-]
-
-[[package]]
-name = "icu_locid"
-version = "1.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "13acbb8371917fc971be86fc8057c41a64b521c184808a698c02acc242dbf637"
-dependencies = [
- "displaydoc",
- "litemap",
- "tinystr",
- "writeable",
- "zerovec",
-]
-
-[[package]]
-name = "icu_locid_transform"
-version = "1.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "01d11ac35de8e40fdeda00d9e1e9d92525f3f9d887cdd7aa81d727596788b54e"
-dependencies = [
- "displaydoc",
- "icu_locid",
- "icu_locid_transform_data",
- "icu_provider",
- "tinystr",
- "zerovec",
-]
-
-[[package]]
-name = "icu_locid_transform_data"
-version = "1.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fdc8ff3388f852bede6b579ad4e978ab004f139284d7b28715f773507b946f6e"
-
-[[package]]
-name = "icu_normalizer"
-version = "1.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "19ce3e0da2ec68599d193c93d088142efd7f9c5d6fc9b803774855747dc6a84f"
-dependencies = [
- "displaydoc",
- "icu_collections",
- "icu_normalizer_data",
- "icu_properties",
- "icu_provider",
- "smallvec",
- "utf16_iter",
- "utf8_iter",
- "write16",
- "zerovec",
-]
-
-[[package]]
-name = "icu_normalizer_data"
-version = "1.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f8cafbf7aa791e9b22bec55a167906f9e1215fd475cd22adfcf660e03e989516"
-
-[[package]]
-name = "icu_properties"
-version = "1.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1f8ac670d7422d7f76b32e17a5db556510825b29ec9154f235977c9caba61036"
-dependencies = [
- "displaydoc",
- "icu_collections",
- "icu_locid_transform",
- "icu_properties_data",
- "icu_provider",
- "tinystr",
- "zerovec",
-]
-
-[[package]]
-name = "icu_properties_data"
-version = "1.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "67a8effbc3dd3e4ba1afa8ad918d5684b8868b3b26500753effea8d2eed19569"
-
-[[package]]
-name = "icu_provider"
-version = "1.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6ed421c8a8ef78d3e2dbc98a973be2f3770cb42b606e3ab18d6237c4dfde68d9"
-dependencies = [
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- "icu_locid",
- "icu_provider_macros",
- "stable_deref_trait",
- "tinystr",
- "writeable",
- "yoke",
- "zerofrom",
- "zerovec",
-]
-
-[[package]]
-name = "icu_provider_macros"
-version = "1.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1ec89e9337638ecdc08744df490b221a7399bf8d164eb52a665454e60e075ad6"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn 2.0.66",
-]
-
 [[package]]
 name = "idna"
-version = "1.0.0"
+version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4716a3a0933a1d01c2f72450e89596eb51dd34ef3c211ccd875acdf1f8fe47ed"
+checksum = "634d9b1461af396cad843f47fdba5597a4f9e6ddd4bfb6ff5d85028c25cb12f6"
 dependencies = [
- "icu_normalizer",
- "icu_properties",
- "smallvec",
- "utf8_iter",
+ "unicode-bidi",
+ "unicode-normalization",
 ]
 
 [[package]]
 name = "indexmap"
-version = "2.2.6"
+version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "168fb715dda47215e360912c096649d23d58bf392ac62f73919e831745e40f26"
+checksum = "68b900aa2f7301e21c36462b170ee99994de34dff39a4a6a528e80e7376d07e5"
 dependencies = [
  "equivalent",
  "hashbrown",
@@ -1677,9 +1545,9 @@ checksum = "49f1f14873335454500d59611f1cf4a4b0f786f9ac11f4312a78e4cf2566695b"
 
 [[package]]
 name = "js-sys"
-version = "0.3.69"
+version = "0.3.70"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "29c15563dc2726973df627357ce0c9ddddbea194836909d655df6a75d2cf296d"
+checksum = "1868808506b929d7b0cfa8f75951347aa71bb21144b7791bae35d9bccfcfe37a"
 dependencies = [
  "wasm-bindgen",
 ]
@@ -1695,15 +1563,15 @@ dependencies = [
 
 [[package]]
 name = "lazy_static"
-version = "1.4.0"
+version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
+checksum = "bbd2bcb4c963f2ddae06a2efc7e9f3591312473c50c6685e1f298068316e66fe"
 
 [[package]]
 name = "libc"
-version = "0.2.155"
+version = "0.2.158"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "97b3888a4aecf77e811145cadf6eef5901f4782c53886191b2f693f24761847c"
+checksum = "d8adc4bb1803a324070e64a98ae98f38934d91957a99cfb3a43dcbc01bc56439"
 
 [[package]]
 name = "libm"
@@ -1717,7 +1585,7 @@ version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c0ff37bd590ca25063e35af745c343cb7a0271906fb7b37e4813e8f79f00268d"
 dependencies = [
- "bitflags 2.5.0",
+ "bitflags 2.6.0",
  "libc",
 ]
 
@@ -1727,17 +1595,11 @@ version = "0.4.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "78b3ae25bc7c8c38cec158d1f2757ee79e9b3740fbc7ccf0e59e4b08d793fa89"
 
-[[package]]
-name = "litemap"
-version = "0.7.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "643cb0b8d4fcc284004d5fd0d67ccf61dfffadb7f75e1e71bc420f4688a3a704"
-
 [[package]]
 name = "lmdb-master-sys"
-version = "0.2.1"
+version = "0.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a5142795c220effa4c8f4813537bd4c88113a07e45e93100ccb2adc5cec6c7f3"
+checksum = "472c3760e2a8d0f61f322fb36788021bb36d573c502b50fa3e2bcaac3ec326c9"
 dependencies = [
  "cc",
  "doxygen-rs",
@@ -1756,9 +1618,9 @@ dependencies = [
 
 [[package]]
 name = "log"
-version = "0.4.21"
+version = "0.4.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "90ed8c1e510134f979dbc4f070f87d4313098b704861a105fe34231c70a3901c"
+checksum = "a7a70ba024b9dc04c27ea2f0c0548feb474ec5c54bba33a7f72f873a39d07b24"
 
 [[package]]
 name = "matchit"
@@ -1778,9 +1640,9 @@ dependencies = [
 
 [[package]]
 name = "memchr"
-version = "2.7.2"
+version = "2.7.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6c8640c5d730cb13ebd907d8d04b52f55ac9a2eec55b440c8892f40d56c76c1d"
+checksum = "78ca9ab1a0babb1e7d5695e3530886289c18cf2f87ec19a575a0abdce112e3a3"
 
 [[package]]
 name = "merlin"
@@ -1800,15 +1662,6 @@ version = "0.3.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6877bb514081ee2a7ff5ef9de3281f14a4dd4bceac4c09388074a6b5df8a139a"
 
-[[package]]
-name = "miniz_oxide"
-version = "0.7.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "87dfd01fe195c66b572b37921ad8803d010623c0aca821bea2302239d155cdae"
-dependencies = [
- "adler",
-]
-
 [[package]]
 name = "miniz_oxide"
 version = "0.8.0"
@@ -1820,13 +1673,14 @@ dependencies = [
 
 [[package]]
 name = "mio"
-version = "0.8.11"
+version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a4a650543ca06a924e8b371db273b2756685faae30f8487da1b56505a8f78b0c"
+checksum = "80e04d1dcff3aae0704555fe5fee3bcfaf3d1fdf8a7e521d5b9d2b42acb52cec"
 dependencies = [
+ "hermit-abi",
  "libc",
  "wasi",
- "windows-sys 0.48.0",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -1998,21 +1852,11 @@ dependencies = [
  "libm",
 ]
 
-[[package]]
-name = "num_cpus"
-version = "1.16.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4161fcb6d602d4d2081af7c3a45852d875a03dd337a6bfdd6e06407b61342a43"
-dependencies = [
- "hermit-abi",
- "libc",
-]
-
 [[package]]
 name = "object"
-version = "0.36.0"
+version = "0.36.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "576dfe1fc8f9df304abb159d767a29d0476f7750fbf8aa7ad07816004a207434"
+checksum = "084f1a5821ac4c651660a94a7153d27ac9d8a53736203f58b31945ded098070a"
 dependencies = [
  "memchr",
 ]
@@ -2065,7 +1909,7 @@ dependencies = [
  "libc",
  "redox_syscall",
  "smallvec",
- "windows-targets 0.52.5",
+ "windows-targets 0.52.6",
 ]
 
 [[package]]
@@ -2110,7 +1954,7 @@ dependencies = [
  "phf_shared",
  "proc-macro2",
  "quote",
- "syn 2.0.66",
+ "syn 2.0.77",
 ]
 
 [[package]]
@@ -2139,7 +1983,7 @@ checksum = "2f38a4412a78282e09a2cf38d195ea5420d15ba0602cb375210efbc877243965"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.66",
+ "syn 2.0.77",
 ]
 
 [[package]]
@@ -2156,15 +2000,18 @@ checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
 
 [[package]]
 name = "ppv-lite86"
-version = "0.2.17"
+version = "0.2.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5b40af805b3121feab8a3c29f04d8ad262fa8e0561883e7653e024ae4479e6de"
+checksum = "77957b295656769bb8ad2b6a6b09d897d94f05c41b069aede1fcdaa675eaea04"
+dependencies = [
+ "zerocopy",
+]
 
 [[package]]
 name = "pretty_assertions"
-version = "1.4.0"
+version = "1.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "af7cee1a6c8a5b9208b3cb1061f10c0cb689087b3d8ce85fb9d2dd7a29b6ba66"
+checksum = "3ae130e2f271fbc2ac3a40fb1d07180839cdbbe443c7a27e1e3c13c5cac0116d"
 dependencies = [
  "diff",
  "yansi",
@@ -2172,9 +2019,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro-crate"
-version = "3.1.0"
+version = "3.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6d37c51ca738a55da99dc0c4a34860fd675453b8b36209178c2249bb13651284"
+checksum = "8ecf48c7ca261d60b74ab1a7b20da18bede46776b2e55535cb958eb595c5fa7b"
 dependencies = [
  "toml_edit",
 ]
@@ -2204,22 +2051,22 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.85"
+version = "1.0.86"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "22244ce15aa966053a896d1accb3a6e68469b97c7f33f284b99f0d576879fc23"
+checksum = "5e719e8df665df0d1c8fbfd238015744736151d4445ec0836b8e628aae103b77"
 dependencies = [
  "unicode-ident",
 ]
 
 [[package]]
 name = "proptest"
-version = "1.4.0"
+version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "31b476131c3c86cb68032fdc5cb6d5a1045e3e42d96b69fa599fd77701e1f5bf"
+checksum = "b4c2511913b88df1637da85cc8d96ec8e43a3f8bb8ccb71ee1ac240d6f3df58d"
 dependencies = [
  "bit-set",
  "bit-vec",
- "bitflags 2.5.0",
+ "bitflags 2.6.0",
  "lazy_static",
  "num-traits",
  "rand",
@@ -2250,9 +2097,9 @@ checksum = "a1d01941d82fa2ab50be1e79e6714289dd7cde78eba4c074bc5a4374f650dfe0"
 
 [[package]]
 name = "quote"
-version = "1.0.36"
+version = "1.0.37"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0fa76aaf39101c457836aec0ce2316dbdc3ab723cdda1c6bd4e6ad4208acaca7"
+checksum = "b5b9d34b8991d19d98081b46eacdd8eb58c6f2b201139f7c5f643cc155a633af"
 dependencies = [
  "proc-macro2",
 ]
@@ -2344,27 +2191,27 @@ dependencies = [
 
 [[package]]
 name = "redb"
-version = "2.1.1"
+version = "2.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a6dd20d3cdeb9c7d2366a0b16b93b35b75aec15309fbeb7ce477138c9f68c8c0"
+checksum = "e4760ad04a88ef77075ba86ba9ea79b919e6bab29c1764c5747237cd6eaedcaa"
 dependencies = [
  "libc",
 ]
 
 [[package]]
 name = "redox_syscall"
-version = "0.5.1"
+version = "0.5.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "469052894dcb553421e483e4209ee581a45100d31b4018de03e5a7ad86374a7e"
+checksum = "0884ad60e090bf1345b93da0a5de8923c93884cd03f40dfcfddd3b4bee661853"
 dependencies = [
- "bitflags 2.5.0",
+ "bitflags 2.6.0",
 ]
 
 [[package]]
 name = "redox_users"
-version = "0.4.5"
+version = "0.4.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bd283d9651eeda4b2a83a43c1c91b266c40fd76ecd39a50a8c630ae69dc72891"
+checksum = "ba009ff324d1fc1b900bd1fdb31564febe58a8ccc8a6fdbb93b543d33b13ca43"
 dependencies = [
  "getrandom",
  "libredox",
@@ -2388,7 +2235,7 @@ checksum = "bcc303e793d3734489387d205e9b186fac9c6cfacedd98cbb2e8a5943595f3e6"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.66",
+ "syn 2.0.77",
 ]
 
 [[package]]
@@ -2420,20 +2267,20 @@ checksum = "719b953e2095829ee67db738b3bfa9fa368c94900df327b3f07fe6e794d2fe1f"
 
 [[package]]
 name = "rustc_version"
-version = "0.4.0"
+version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bfa0f585226d2e68097d4f95d113b15b83a82e819ab25717ec0590d9584ef366"
+checksum = "cfcb3a22ef46e85b45de6ee7e79d063319ebb6594faafcf1c225ea92ab6e9b92"
 dependencies = [
  "semver",
 ]
 
 [[package]]
 name = "rustix"
-version = "0.38.34"
+version = "0.38.37"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "70dc5ec042f7a43c4a73241207cecc9873a06d45debb38b329f8541d85c2730f"
+checksum = "8acb788b847c24f28525660c4d7758620a7210875711f79e7f663cc152726811"
 dependencies = [
- "bitflags 2.5.0",
+ "bitflags 2.6.0",
  "errno",
  "libc",
  "linux-raw-sys",
@@ -2442,9 +2289,9 @@ dependencies = [
 
 [[package]]
 name = "rustls"
-version = "0.23.10"
+version = "0.23.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "05cff451f60db80f490f3c182b77c35260baace73209e9cdbbe526bfe3a4d402"
+checksum = "f2dabaac7466917e566adb06783a81ca48944c6898a1b08b9374106dd671f4c8"
 dependencies = [
  "log",
  "once_cell",
@@ -2457,9 +2304,9 @@ dependencies = [
 
 [[package]]
 name = "rustls-native-certs"
-version = "0.7.0"
+version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8f1fb85efa936c42c6d5fc28d2629bb51e4b2f4b8a5211e297d599cc5a093792"
+checksum = "fcaf18a4f2be7326cd874a5fa579fae794320a0f388d365dca7e480e55f83f8a"
 dependencies = [
  "openssl-probe",
  "rustls-pemfile",
@@ -2470,9 +2317,9 @@ dependencies = [
 
 [[package]]
 name = "rustls-pemfile"
-version = "2.1.2"
+version = "2.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "29993a25686778eb88d4189742cd713c9bce943bc54251a33509dc63cbacf73d"
+checksum = "196fe16b00e106300d3e45ecfcb764fa292a535d7326a29a5875c579c7417425"
 dependencies = [
  "base64",
  "rustls-pki-types",
@@ -2486,9 +2333,9 @@ checksum = "fc0a2ce646f8655401bb81e7927b812614bd5d91dbc968696be50603510fcaf0"
 
 [[package]]
 name = "rustls-webpki"
-version = "0.102.4"
+version = "0.102.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ff448f7e92e913c4b7d4c6d8e4540a1724b319b4152b8aef6d4cf8339712b33e"
+checksum = "64ca1bc8749bd4cf37b5ce386cc146580777b4e8572c7b97baf22c83f444bee9"
 dependencies = [
  "ring",
  "rustls-pki-types",
@@ -2521,11 +2368,11 @@ checksum = "f3cb5ba0dc43242ce17de99c180e96db90b235b8a9fdc9543c96d2209116bd9f"
 
 [[package]]
 name = "schannel"
-version = "0.1.23"
+version = "0.1.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fbc91545643bcf3a0bbb6569265615222618bdf33ce4ffbbd13c4bbd4c093534"
+checksum = "e9aaafd5a2b6e3d657ff009d82fbd630b6bd54dd4eb06f21693925cdf80f9b8b"
 dependencies = [
- "windows-sys 0.52.0",
+ "windows-sys 0.59.0",
 ]
 
 [[package]]
@@ -2536,11 +2383,11 @@ checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
 
 [[package]]
 name = "security-framework"
-version = "2.11.0"
+version = "2.11.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c627723fd09706bacdb5cf41499e95098555af3c3c29d014dc3c458ef6be11c0"
+checksum = "897b2245f0b511c87893af39b033e5ca9cce68824c4d7e7630b5a1d339658d02"
 dependencies = [
- "bitflags 2.5.0",
+ "bitflags 2.6.0",
  "core-foundation",
  "core-foundation-sys",
  "libc",
@@ -2549,9 +2396,9 @@ dependencies = [
 
 [[package]]
 name = "security-framework-sys"
-version = "2.11.0"
+version = "2.11.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "317936bbbd05227752583946b9e66d7ce3b489f84e11a94a510b4437fef407d7"
+checksum = "75da29fe9b9b08fe9d6b22b5b4bcbc75d8db3aa31e639aa56bb62e9d46bfceaf"
 dependencies = [
  "core-foundation-sys",
  "libc",
@@ -2565,9 +2412,9 @@ checksum = "61697e0a1c7e512e84a621326239844a24d8207b4669b41bc18b32ea5cbf988b"
 
 [[package]]
 name = "serde"
-version = "1.0.203"
+version = "1.0.210"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7253ab4de971e72fb7be983802300c30b5a7f0c2e56fab8abfc6a214307c0094"
+checksum = "c8e3592472072e6e22e0a54d5904d9febf8508f65fb8552499a1abc7d1078c3a"
 dependencies = [
  "serde_derive",
 ]
@@ -2583,22 +2430,23 @@ dependencies = [
 
 [[package]]
 name = "serde_derive"
-version = "1.0.203"
+version = "1.0.210"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "500cbc0ebeb6f46627f50f3f5811ccf6bf00643be300b4c3eabc0ef55dc5b5ba"
+checksum = "243902eda00fad750862fc144cea25caca5e20d615af0a81bee94ca738f1df1f"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.66",
+ "syn 2.0.77",
 ]
 
 [[package]]
 name = "serde_json"
-version = "1.0.117"
+version = "1.0.128"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "455182ea6142b14f93f4bc5320a2b31c1f266b66a4a5c858b013302a5d8cbfc3"
+checksum = "6ff5456707a1de34e7e37f2a6fd3d3f808c318259cbd01ab6377795054b483d8"
 dependencies = [
  "itoa",
+ "memchr",
  "ryu",
  "serde",
 ]
@@ -2646,6 +2494,12 @@ dependencies = [
  "keccak",
 ]
 
+[[package]]
+name = "shlex"
+version = "1.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0fda2ff0d084019ba4d7c6f371c95d8fd75ce3524c3cb8fb653a3023f6323e64"
+
 [[package]]
 name = "signal-hook-registry"
 version = "1.4.2"
@@ -2705,12 +2559,6 @@ version = "0.9.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6980e8d7511241f8acf4aebddbb1ff938df5eebe98691418c4468d0b72a96a67"
 
-[[package]]
-name = "stable_deref_trait"
-version = "1.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a8f112729512f8e442d81f95a8a7ddf2b7c6b8a1a6f509a95864142b30cab2d3"
-
 [[package]]
 name = "std-shims"
 version = "0.1.1"
@@ -2722,9 +2570,9 @@ dependencies = [
 
 [[package]]
 name = "subtle"
-version = "2.5.0"
+version = "2.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "81cdd64d312baedb58e21336b31bc043b77e01cc99033ce76ef539f78e965ebc"
+checksum = "13c2bddecc57b384dee18652358fb23172facb8a2c51ccc10d74c157bdea3292"
 
 [[package]]
 name = "syn"
@@ -2739,9 +2587,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.66"
+version = "2.0.77"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c42f3f41a2de00b01c0aaad383c5a45241efc8b2d1eda5661812fda5f3cdcff5"
+checksum = "9f35bcdf61fd8e7be6caf75f429fdca8beb3ed76584befb503b1569faee373ed"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2757,7 +2605,7 @@ dependencies = [
  "proc-macro-error",
  "proc-macro2",
  "quote",
- "syn 2.0.66",
+ "syn 2.0.77",
 ]
 
 [[package]]
@@ -2781,17 +2629,6 @@ dependencies = [
  "crossbeam-queue",
 ]
 
-[[package]]
-name = "synstructure"
-version = "0.13.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c8af7666ab7b6390ab78131fb5b0fce11d6b7a6951602017c35fa82800708971"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn 2.0.66",
-]
-
 [[package]]
 name = "tap"
 version = "1.0.1"
@@ -2800,34 +2637,35 @@ checksum = "55937e1799185b12863d447f42597ed69d9928686b8d88a1df17376a097d8369"
 
 [[package]]
 name = "tempfile"
-version = "3.10.1"
+version = "3.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "85b77fafb263dd9d05cbeac119526425676db3784113aa9295c88498cbf8bff1"
+checksum = "04cbcdd0c794ebb0d4cf35e88edd2f7d2c4c3e9a5a6dab322839b321c6a87a64"
 dependencies = [
  "cfg-if",
  "fastrand",
+ "once_cell",
  "rustix",
- "windows-sys 0.52.0",
+ "windows-sys 0.59.0",
 ]
 
 [[package]]
 name = "thiserror"
-version = "1.0.61"
+version = "1.0.63"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c546c80d6be4bc6a00c0f01730c08df82eaa7a7a61f11d656526506112cc1709"
+checksum = "c0342370b38b6a11b6cc11d6a805569958d54cfa061a29969c3b5ce2ea405724"
 dependencies = [
  "thiserror-impl",
 ]
 
 [[package]]
 name = "thiserror-impl"
-version = "1.0.61"
+version = "1.0.63"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "46c3384250002a6d5af4d114f2845d37b57521033f30d5c3f46c4d70e1197533"
+checksum = "a4558b58466b9ad7ca0f102865eccc95938dca1a74a856f2b57b6629050da261"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.66",
+ "syn 2.0.77",
 ]
 
 [[package]]
@@ -2841,43 +2679,47 @@ dependencies = [
 ]
 
 [[package]]
-name = "tinystr"
-version = "0.7.6"
+name = "tinyvec"
+version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9117f5d4db391c1cf6927e7bea3db74b9a1c1add8f7eda9ffd5364f40f57b82f"
+checksum = "445e881f4f6d382d5f27c034e25eb92edd7c784ceab92a0937db7f2e9471b938"
 dependencies = [
- "displaydoc",
- "zerovec",
+ "tinyvec_macros",
 ]
 
+[[package]]
+name = "tinyvec_macros"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"
+
 [[package]]
 name = "tokio"
-version = "1.38.0"
+version = "1.40.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ba4f4a02a7a80d6f274636f0aa95c7e383b912d41fe721a31f29e29698585a4a"
+checksum = "e2b070231665d27ad9ec9b8df639893f46727666c6767db40317fbe920a5d998"
 dependencies = [
  "backtrace",
  "bytes",
  "libc",
  "mio",
- "num_cpus",
  "parking_lot",
  "pin-project-lite",
  "signal-hook-registry",
  "socket2",
  "tokio-macros",
- "windows-sys 0.48.0",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
 name = "tokio-macros"
-version = "2.3.0"
+version = "2.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5f5ae998a069d4b5aba8ee9dad856af7d520c3699e6159b185c2acd48155d39a"
+checksum = "693d596312e88961bc67d7f1f97af8a70227d9f90c31bba5806eec004978d752"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.66",
+ "syn 2.0.77",
 ]
 
 [[package]]
@@ -2893,9 +2735,9 @@ dependencies = [
 
 [[package]]
 name = "tokio-stream"
-version = "0.1.15"
+version = "0.1.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "267ac89e0bec6e691e5813911606935d77c476ff49024f98abcea3e7b15e37af"
+checksum = "4f4e6ce100d0eb49a2734f8c0812bcd324cf357d21810932c5df6b96ef2b86f1"
 dependencies = [
  "futures-core",
  "pin-project-lite",
@@ -2918,9 +2760,9 @@ dependencies = [
 
 [[package]]
 name = "tokio-util"
-version = "0.7.11"
+version = "0.7.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9cf6b47b3771c49ac75ad09a6162f53ad4b8088b76ac60e8ec1455b31a189fe1"
+checksum = "61e7c3654c13bcd040d4a03abee2c75b1d14a37b423cf5a813ceae1cc903ec6a"
 dependencies = [
  "bytes",
  "futures-core",
@@ -2933,15 +2775,15 @@ dependencies = [
 
 [[package]]
 name = "toml_datetime"
-version = "0.6.6"
+version = "0.6.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4badfd56924ae69bcc9039335b2e017639ce3f9b001c393c1b2d1ef846ce2cbf"
+checksum = "0dd7358ecb8fc2f8d014bf86f6f638ce72ba252a2c3a2572f2a795f1d23efb41"
 
 [[package]]
 name = "toml_edit"
-version = "0.21.1"
+version = "0.22.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6a8534fd7f78b5405e860340ad6575217ce99f38d4d5c8f2442cb5ecb50090e1"
+checksum = "3b072cee73c449a636ffd6f32bd8de3a9f7119139aff882f44943ce2986dc5cf"
 dependencies = [
  "indexmap",
  "toml_datetime",
@@ -2967,15 +2809,15 @@ dependencies = [
 
 [[package]]
 name = "tower-layer"
-version = "0.3.2"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c20c8dbed6283a09604c3e69b4b7eeb54e298b8a600d4d5ecb5ad39de609f1d0"
+checksum = "121c2a6cda46980bb0fcd1647ffaf6cd3fc79a013de288782836f6df9c48780e"
 
 [[package]]
 name = "tower-service"
-version = "0.3.2"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b6bc1c9ce2b5135ac7f93c72918fc37feb872bdc6a5533a8b85eb4b86bfdae52"
+checksum = "8df9b6e13f2d32c91b9bd719c00d1958837bc7dec474d94952798cc8e69eeec3"
 
 [[package]]
 name = "tracing"
@@ -2997,7 +2839,7 @@ checksum = "34704c8d6ebcbc939824180af020566b01a7c01f80641264eba0999f6c2b6be7"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.66",
+ "syn 2.0.77",
 ]
 
 [[package]]
@@ -3036,11 +2878,26 @@ version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "eaea85b334db583fe3274d12b4cd1880032beab409c0d774be044d4480ab9a94"
 
+[[package]]
+name = "unicode-bidi"
+version = "0.3.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "08f95100a766bf4f8f28f90d77e0a5461bbdb219042e7679bebe79004fed8d75"
+
 [[package]]
 name = "unicode-ident"
-version = "1.0.12"
+version = "1.0.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b"
+checksum = "e91b56cd4cadaeb79bbf1a5645f6b4f8dc5bde8834ad5894a8db35fda9efa1fe"
+
+[[package]]
+name = "unicode-normalization"
+version = "0.1.24"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5033c97c4262335cded6d6fc3e5c18ab755e1a3dc96376350f3d8e9f009ad956"
+dependencies = [
+ "tinyvec",
+]
 
 [[package]]
 name = "untrusted"
@@ -3068,32 +2925,20 @@ dependencies = [
 
 [[package]]
 name = "url"
-version = "2.5.1"
+version = "2.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f7c25da092f0a868cdf09e8674cd3b7ef3a7d92a24253e663a2fb85e2496de56"
+checksum = "22784dbdf76fdde8af1aeda5622b546b422b6fc585325248a2bf9f5e41e94d6c"
 dependencies = [
  "form_urlencoded",
  "idna",
  "percent-encoding",
 ]
 
-[[package]]
-name = "utf16_iter"
-version = "1.0.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c8232dd3cdaed5356e0f716d285e4b40b932ac434100fe9b7e0e8e935b9e6246"
-
-[[package]]
-name = "utf8_iter"
-version = "1.0.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b6c140620e7ffbb22c2dee59cafe6084a59b5ffc27a8859a5f0d494b5d52b6be"
-
 [[package]]
 name = "version_check"
-version = "0.9.4"
+version = "0.9.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
+checksum = "0b928f33d975fc6ad9f86c8f283853ad26bdd5b10b7f1542aa2fa15e2289105a"
 
 [[package]]
 name = "wait-timeout"
@@ -3121,34 +2966,35 @@ checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
 
 [[package]]
 name = "wasm-bindgen"
-version = "0.2.92"
+version = "0.2.93"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4be2531df63900aeb2bca0daaaddec08491ee64ceecbee5076636a3b026795a8"
+checksum = "a82edfc16a6c469f5f44dc7b571814045d60404b55a0ee849f9bcfa2e63dd9b5"
 dependencies = [
  "cfg-if",
+ "once_cell",
  "wasm-bindgen-macro",
 ]
 
 [[package]]
 name = "wasm-bindgen-backend"
-version = "0.2.92"
+version = "0.2.93"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "614d787b966d3989fa7bb98a654e369c762374fd3213d212cfc0251257e747da"
+checksum = "9de396da306523044d3302746f1208fa71d7532227f15e347e2d93e4145dd77b"
 dependencies = [
  "bumpalo",
  "log",
  "once_cell",
  "proc-macro2",
  "quote",
- "syn 2.0.66",
+ "syn 2.0.77",
  "wasm-bindgen-shared",
 ]
 
 [[package]]
 name = "wasm-bindgen-macro"
-version = "0.2.92"
+version = "0.2.93"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a1f8823de937b71b9460c0c34e25f3da88250760bec0ebac694b49997550d726"
+checksum = "585c4c91a46b072c92e908d99cb1dcdf95c5218eeb6f3bf1efa991ee7a68cccf"
 dependencies = [
  "quote",
  "wasm-bindgen-macro-support",
@@ -3156,22 +3002,22 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro-support"
-version = "0.2.92"
+version = "0.2.93"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e94f17b526d0a461a191c78ea52bbce64071ed5c04c9ffe424dcb38f74171bb7"
+checksum = "afc340c74d9005395cf9dd098506f7f44e38f2b4a21c6aaacf9a105ea5e1e836"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.66",
+ "syn 2.0.77",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
 
 [[package]]
 name = "wasm-bindgen-shared"
-version = "0.2.92"
+version = "0.2.93"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "af190c94f2773fdb3729c55b007a722abb5384da03bc0986df4c289bf5567e96"
+checksum = "c62a0a307cb4a311d3a07867860911ca130c3494e8c2719593806c08bc5d0484"
 
 [[package]]
 name = "webpki-roots"
@@ -3206,12 +3052,12 @@ checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
 [[package]]
 name = "windows"
-version = "0.57.0"
+version = "0.58.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "12342cb4d8e3b046f3d80effd474a7a02447231330ef77d71daa6fbc40681143"
+checksum = "dd04d41d93c4992d421894c18c8b43496aa748dd4c081bac0dc93eb0489272b6"
 dependencies = [
- "windows-core 0.57.0",
- "windows-targets 0.52.5",
+ "windows-core 0.58.0",
+ "windows-targets 0.52.6",
 ]
 
 [[package]]
@@ -3220,50 +3066,61 @@ version = "0.52.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "33ab640c8d7e35bf8ba19b884ba838ceb4fba93a4e8c65a9059d08afcfc683d9"
 dependencies = [
- "windows-targets 0.52.5",
+ "windows-targets 0.52.6",
 ]
 
 [[package]]
 name = "windows-core"
-version = "0.57.0"
+version = "0.58.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d2ed2439a290666cd67ecce2b0ffaad89c2a56b976b736e6ece670297897832d"
+checksum = "6ba6d44ec8c2591c134257ce647b7ea6b20335bf6379a27dac5f1641fcf59f99"
 dependencies = [
  "windows-implement",
  "windows-interface",
  "windows-result",
- "windows-targets 0.52.5",
+ "windows-strings",
+ "windows-targets 0.52.6",
 ]
 
 [[package]]
 name = "windows-implement"
-version = "0.57.0"
+version = "0.58.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9107ddc059d5b6fbfbffdfa7a7fe3e22a226def0b2608f72e9d552763d3e1ad7"
+checksum = "2bbd5b46c938e506ecbce286b6628a02171d56153ba733b6c741fc627ec9579b"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.66",
+ "syn 2.0.77",
 ]
 
 [[package]]
 name = "windows-interface"
-version = "0.57.0"
+version = "0.58.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "29bee4b38ea3cde66011baa44dba677c432a78593e202392d1e9070cf2a7fca7"
+checksum = "053c4c462dc91d3b1504c6fe5a726dd15e216ba718e84a0e46a88fbe5ded3515"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.66",
+ "syn 2.0.77",
 ]
 
 [[package]]
 name = "windows-result"
-version = "0.1.2"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1d1043d8214f791817bab27572aaa8af63732e11bf84aa21a45a78d6c317ae0e"
+dependencies = [
+ "windows-targets 0.52.6",
+]
+
+[[package]]
+name = "windows-strings"
+version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5e383302e8ec8515204254685643de10811af0ed97ea37210dc26fb0032647f8"
+checksum = "4cd9b125c486025df0eabcb585e62173c6c9eddcec5d117d3b6e8c30e2ee4d10"
 dependencies = [
- "windows-targets 0.52.5",
+ "windows-result",
+ "windows-targets 0.52.6",
 ]
 
 [[package]]
@@ -3281,7 +3138,16 @@ version = "0.52.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "282be5f36a8ce781fad8c8ae18fa3f9beff57ec1b52cb3de0789201425d9a33d"
 dependencies = [
- "windows-targets 0.52.5",
+ "windows-targets 0.52.6",
+]
+
+[[package]]
+name = "windows-sys"
+version = "0.59.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e38bc4d79ed67fd075bcc251a1c39b32a1776bbe92e5bef1f0bf1f8c531853b"
+dependencies = [
+ "windows-targets 0.52.6",
 ]
 
 [[package]]
@@ -3301,18 +3167,18 @@ dependencies = [
 
 [[package]]
 name = "windows-targets"
-version = "0.52.5"
+version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6f0713a46559409d202e70e28227288446bf7841d3211583a4b53e3f6d96e7eb"
+checksum = "9b724f72796e036ab90c1021d4780d4d3d648aca59e491e6b98e725b84e99973"
 dependencies = [
- "windows_aarch64_gnullvm 0.52.5",
- "windows_aarch64_msvc 0.52.5",
- "windows_i686_gnu 0.52.5",
+ "windows_aarch64_gnullvm 0.52.6",
+ "windows_aarch64_msvc 0.52.6",
+ "windows_i686_gnu 0.52.6",
  "windows_i686_gnullvm",
- "windows_i686_msvc 0.52.5",
- "windows_x86_64_gnu 0.52.5",
- "windows_x86_64_gnullvm 0.52.5",
- "windows_x86_64_msvc 0.52.5",
+ "windows_i686_msvc 0.52.6",
+ "windows_x86_64_gnu 0.52.6",
+ "windows_x86_64_gnullvm 0.52.6",
+ "windows_x86_64_msvc 0.52.6",
 ]
 
 [[package]]
@@ -3323,9 +3189,9 @@ checksum = "2b38e32f0abccf9987a4e3079dfb67dcd799fb61361e53e2882c3cbaf0d905d8"
 
 [[package]]
 name = "windows_aarch64_gnullvm"
-version = "0.52.5"
+version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7088eed71e8b8dda258ecc8bac5fb1153c5cffaf2578fc8ff5d61e23578d3263"
+checksum = "32a4622180e7a0ec044bb555404c800bc9fd9ec262ec147edd5989ccd0c02cd3"
 
 [[package]]
 name = "windows_aarch64_msvc"
@@ -3335,9 +3201,9 @@ checksum = "dc35310971f3b2dbbf3f0690a219f40e2d9afcf64f9ab7cc1be722937c26b4bc"
 
 [[package]]
 name = "windows_aarch64_msvc"
-version = "0.52.5"
+version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9985fd1504e250c615ca5f281c3f7a6da76213ebd5ccc9561496568a2752afb6"
+checksum = "09ec2a7bb152e2252b53fa7803150007879548bc709c039df7627cabbd05d469"
 
 [[package]]
 name = "windows_i686_gnu"
@@ -3347,15 +3213,15 @@ checksum = "a75915e7def60c94dcef72200b9a8e58e5091744960da64ec734a6c6e9b3743e"
 
 [[package]]
 name = "windows_i686_gnu"
-version = "0.52.5"
+version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "88ba073cf16d5372720ec942a8ccbf61626074c6d4dd2e745299726ce8b89670"
+checksum = "8e9b5ad5ab802e97eb8e295ac6720e509ee4c243f69d781394014ebfe8bbfa0b"
 
 [[package]]
 name = "windows_i686_gnullvm"
-version = "0.52.5"
+version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "87f4261229030a858f36b459e748ae97545d6f1ec60e5e0d6a3d32e0dc232ee9"
+checksum = "0eee52d38c090b3caa76c563b86c3a4bd71ef1a819287c19d586d7334ae8ed66"
 
 [[package]]
 name = "windows_i686_msvc"
@@ -3365,9 +3231,9 @@ checksum = "8f55c233f70c4b27f66c523580f78f1004e8b5a8b659e05a4eb49d4166cca406"
 
 [[package]]
 name = "windows_i686_msvc"
-version = "0.52.5"
+version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "db3c2bf3d13d5b658be73463284eaf12830ac9a26a90c717b7f771dfe97487bf"
+checksum = "240948bc05c5e7c6dabba28bf89d89ffce3e303022809e73deaefe4f6ec56c66"
 
 [[package]]
 name = "windows_x86_64_gnu"
@@ -3377,9 +3243,9 @@ checksum = "53d40abd2583d23e4718fddf1ebec84dbff8381c07cae67ff7768bbf19c6718e"
 
 [[package]]
 name = "windows_x86_64_gnu"
-version = "0.52.5"
+version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4e4246f76bdeff09eb48875a0fd3e2af6aada79d409d33011886d3e1581517d9"
+checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"
 
 [[package]]
 name = "windows_x86_64_gnullvm"
@@ -3389,9 +3255,9 @@ checksum = "0b7b52767868a23d5bab768e390dc5f5c55825b6d30b86c844ff2dc7414044cc"
 
 [[package]]
 name = "windows_x86_64_gnullvm"
-version = "0.52.5"
+version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "852298e482cd67c356ddd9570386e2862b5673c85bd5f88df9ab6802b334c596"
+checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
 
 [[package]]
 name = "windows_x86_64_msvc"
@@ -3401,31 +3267,19 @@ checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538"
 
 [[package]]
 name = "windows_x86_64_msvc"
-version = "0.52.5"
+version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bec47e5bfd1bff0eeaf6d8b485cc1074891a197ab4225d504cb7a1ab88b02bf0"
+checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
 
 [[package]]
 name = "winnow"
-version = "0.5.40"
+version = "0.6.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f593a95398737aeed53e489c785df13f3618e41dbcd6718c6addbf1395aa6876"
+checksum = "68a9bda4691f099d435ad181000724da8e5899daa10713c2d432552b9ccd3a6f"
 dependencies = [
  "memchr",
 ]
 
-[[package]]
-name = "write16"
-version = "1.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d1890f4022759daae28ed4fe62859b1236caebfc61ede2f63ed4e695f3f6d936"
-
-[[package]]
-name = "writeable"
-version = "0.5.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e9df38ee2d2c3c5948ea468a8406ff0db0b29ae1ffde1bcf20ef305bcc95c51"
-
 [[package]]
 name = "wyz"
 version = "0.5.1"
@@ -3437,73 +3291,29 @@ dependencies = [
 
 [[package]]
 name = "yansi"
-version = "0.5.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "09041cd90cf85f7f8b2df60c646f853b7f535ce68f85244eb6731cf89fa498ec"
-
-[[package]]
-name = "yoke"
-version = "0.7.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6c5b1314b079b0930c31e3af543d8ee1757b1951ae1e1565ec704403a7240ca5"
-dependencies = [
- "serde",
- "stable_deref_trait",
- "yoke-derive",
- "zerofrom",
-]
-
-[[package]]
-name = "yoke-derive"
-version = "0.7.4"
+version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "28cc31741b18cb6f1d5ff12f5b7523e3d6eb0852bbbad19d73905511d9849b95"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn 2.0.66",
- "synstructure",
-]
+checksum = "cfe53a6657fd280eaa890a3bc59152892ffa3e30101319d168b781ed6529b049"
 
 [[package]]
 name = "zerocopy"
-version = "0.7.34"
+version = "0.7.35"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ae87e3fcd617500e5d106f0380cf7b77f3c6092aae37191433159dda23cfb087"
+checksum = "1b9b4fd18abc82b8136838da5d50bae7bdea537c574d8dc1a34ed098d6c166f0"
 dependencies = [
+ "byteorder",
  "zerocopy-derive",
 ]
 
 [[package]]
 name = "zerocopy-derive"
-version = "0.7.34"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "15e934569e47891f7d9411f1a451d947a60e000ab3bd24fbb970f000387d1b3b"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn 2.0.66",
-]
-
-[[package]]
-name = "zerofrom"
-version = "0.1.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "91ec111ce797d0e0784a1116d0ddcdbea84322cd79e5d5ad173daeba4f93ab55"
-dependencies = [
- "zerofrom-derive",
-]
-
-[[package]]
-name = "zerofrom-derive"
-version = "0.1.4"
+version = "0.7.35"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0ea7b4a3637ea8669cedf0f1fd5c286a17f3de97b8dd5a70a6c167a1730e63a5"
+checksum = "fa4f8080344d4671fb4e831a13ad1e68092748387dfc4f55e356242fae12ce3e"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.66",
- "synstructure",
+ "syn 2.0.77",
 ]
 
 [[package]]
@@ -3523,27 +3333,5 @@ checksum = "ce36e65b0d2999d2aafac989fb249189a141aee1f53c612c1f37d72631959f69"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.66",
-]
-
-[[package]]
-name = "zerovec"
-version = "0.10.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aa2b893d79df23bfb12d5461018d408ea19dfafe76c2c7ef6d4eba614f8ff079"
-dependencies = [
- "yoke",
- "zerofrom",
- "zerovec-derive",
-]
-
-[[package]]
-name = "zerovec-derive"
-version = "0.10.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6eafa6dfb17584ea3e2bd6e76e0cc15ad7af12b09abdd1ca55961bed9b1063c6"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn 2.0.66",
+ "syn 2.0.77",
 ]
diff --git a/helper/Cargo.toml b/helper/Cargo.toml
index c74e40fd4..baa3f23ed 100644
--- a/helper/Cargo.toml
+++ b/helper/Cargo.toml
@@ -9,8 +9,8 @@ repository = "https://github.com/Cuprate/cuprate/tree/main/consensus"
 
 
 [features]
-# All features on by default.
-default   = ["std", "atomic", "asynch", "cast", "fs", "num", "map", "time", "thread", "constants"]
+# All features off by default.
+default   = []
 std       = []
 atomic    = ["dep:crossbeam"]
 asynch    = ["dep:futures", "dep:rayon"]
@@ -21,6 +21,7 @@ num       = []
 map       = ["cast", "dep:monero-serai"]
 time      = ["dep:chrono", "std"]
 thread    = ["std", "dep:target_os_lib"]
+tx        = ["dep:monero-serai"]
 
 [dependencies]
 crossbeam    = { workspace = true, optional = true }
@@ -39,7 +40,8 @@ target_os_lib = { package = "windows", version = ">=0.51", features = ["Win32_Sy
 target_os_lib = { package = "libc", version = "0.2.151", optional = true }
 
 [dev-dependencies]
-tokio = { workspace = true, features = ["full"] }
+tokio            = { workspace = true, features = ["full"] }
+curve25519-dalek = { workspace = true }
 
 [lints]
 workspace = true
\ No newline at end of file
diff --git a/helper/src/lib.rs b/helper/src/lib.rs
index de0d95558..f29c49949 100644
--- a/helper/src/lib.rs
+++ b/helper/src/lib.rs
@@ -31,6 +31,8 @@ pub mod thread;
 #[cfg(feature = "time")]
 pub mod time;
 
+#[cfg(feature = "tx")]
+pub mod tx;
 //---------------------------------------------------------------------------------------------------- Private Usage
 
 //----------------------------------------------------------------------------------------------------
diff --git a/helper/src/tx.rs b/helper/src/tx.rs
new file mode 100644
index 000000000..53706ecf2
--- /dev/null
+++ b/helper/src/tx.rs
@@ -0,0 +1,70 @@
+//! Utils for working with [`Transaction`]
+
+use monero_serai::transaction::{Input, Transaction};
+
+/// Calculates the fee of the [`Transaction`].
+///
+/// # Panics
+/// This will panic if the inputs overflow or the transaction outputs too much, so should only
+/// be used on known to be valid txs.
+pub fn tx_fee(tx: &Transaction) -> u64 {
+    let mut fee = 0_u64;
+
+    match &tx {
+        Transaction::V1 { prefix, .. } => {
+            for input in &prefix.inputs {
+                match input {
+                    Input::Gen(_) => return 0,
+                    Input::ToKey { amount, .. } => {
+                        fee = fee.checked_add(amount.unwrap_or(0)).unwrap();
+                    }
+                }
+            }
+
+            for output in &prefix.outputs {
+                fee = fee.checked_sub(output.amount.unwrap_or(0)).unwrap();
+            }
+        }
+        Transaction::V2 { proofs, .. } => {
+            fee = proofs.as_ref().unwrap().base.fee;
+        }
+    };
+
+    fee
+}
+
+#[cfg(test)]
+mod test {
+    use curve25519_dalek::{edwards::CompressedEdwardsY, EdwardsPoint};
+    use monero_serai::transaction::{NotPruned, Output, Timelock, TransactionPrefix};
+
+    use super::*;
+
+    #[test]
+    #[should_panic(expected = "called `Option::unwrap()` on a `None` value")]
+    fn tx_fee_panic() {
+        let input = Input::ToKey {
+            amount: Some(u64::MAX),
+            key_offsets: vec![],
+            key_image: EdwardsPoint::default(),
+        };
+
+        let output = Output {
+            amount: Some(u64::MAX),
+            key: CompressedEdwardsY::default(),
+            view_tag: None,
+        };
+
+        let tx = Transaction::<NotPruned>::V1 {
+            prefix: TransactionPrefix {
+                additional_timelock: Timelock::None,
+                inputs: vec![input; 2],
+                outputs: vec![output],
+                extra: vec![],
+            },
+            signatures: vec![],
+        };
+
+        tx_fee(&tx);
+    }
+}
diff --git a/storage/blockchain/Cargo.toml b/storage/blockchain/Cargo.toml
index e0399033c..46b8414d6 100644
--- a/storage/blockchain/Cargo.toml
+++ b/storage/blockchain/Cargo.toml
@@ -25,11 +25,12 @@ cuprate-database         = { path = "../database" }
 cuprate-database-service = { path = "../service" }
 cuprate-helper           = { path = "../../helper", features = ["fs", "thread", "map"] }
 cuprate-types            = { path = "../../types", features = ["blockchain"] }
+cuprate-pruning          = { path = "../../pruning" }
 
 bitflags         = { workspace = true, features = ["std", "serde", "bytemuck"] }
 bytemuck         = { workspace = true, features = ["must_cast", "derive", "min_const_generics", "extern_crate_alloc"] }
 curve25519-dalek = { workspace = true }
-cuprate-pruning  = { path = "../../pruning" }
+rand             = { workspace = true }
 monero-serai     = { workspace = true, features = ["std"] }
 serde            = { workspace = true, optional = true }
 
diff --git a/storage/blockchain/src/ops/alt_block/block.rs b/storage/blockchain/src/ops/alt_block/block.rs
new file mode 100644
index 000000000..6bd01cb37
--- /dev/null
+++ b/storage/blockchain/src/ops/alt_block/block.rs
@@ -0,0 +1,337 @@
+use bytemuck::TransparentWrapper;
+use monero_serai::block::{Block, BlockHeader};
+
+use cuprate_database::{DatabaseRo, DatabaseRw, RuntimeError, StorableVec};
+use cuprate_helper::map::{combine_low_high_bits_to_u128, split_u128_into_low_high_bits};
+use cuprate_types::{AltBlockInformation, Chain, ChainId, ExtendedBlockHeader, HardFork};
+
+use crate::{
+    ops::{
+        alt_block::{add_alt_transaction_blob, get_alt_transaction, update_alt_chain_info},
+        block::get_block_info,
+        macros::doc_error,
+    },
+    tables::{Tables, TablesMut},
+    types::{AltBlockHeight, BlockHash, BlockHeight, CompactAltBlockInfo},
+};
+
+/// Flush all alt-block data from all the alt-block tables.
+///
+/// This function completely empties the alt block tables.
+pub fn flush_alt_blocks<'a, E: cuprate_database::EnvInner<'a>>(
+    env_inner: &E,
+    tx_rw: &mut E::Rw<'_>,
+) -> Result<(), RuntimeError> {
+    use crate::tables::{
+        AltBlockBlobs, AltBlockHeights, AltBlocksInfo, AltChainInfos, AltTransactionBlobs,
+        AltTransactionInfos,
+    };
+
+    env_inner.clear_db::<AltChainInfos>(tx_rw)?;
+    env_inner.clear_db::<AltBlockHeights>(tx_rw)?;
+    env_inner.clear_db::<AltBlocksInfo>(tx_rw)?;
+    env_inner.clear_db::<AltBlockBlobs>(tx_rw)?;
+    env_inner.clear_db::<AltTransactionBlobs>(tx_rw)?;
+    env_inner.clear_db::<AltTransactionInfos>(tx_rw)
+}
+
+/// Add a [`AltBlockInformation`] to the database.
+///
+/// This extracts all the data from the input block and
+/// maps/adds them to the appropriate database tables.
+///
+#[doc = doc_error!()]
+///
+/// # Panics
+/// This function will panic if:
+/// - `alt_block.height` is == `0`
+/// - `alt_block.txs.len()` != `alt_block.block.transactions.len()`
+///
+pub fn add_alt_block(
+    alt_block: &AltBlockInformation,
+    tables: &mut impl TablesMut,
+) -> Result<(), RuntimeError> {
+    let alt_block_height = AltBlockHeight {
+        chain_id: alt_block.chain_id.into(),
+        height: alt_block.height,
+    };
+
+    tables
+        .alt_block_heights_mut()
+        .put(&alt_block.block_hash, &alt_block_height)?;
+
+    update_alt_chain_info(&alt_block_height, &alt_block.block.header.previous, tables)?;
+
+    let (cumulative_difficulty_low, cumulative_difficulty_high) =
+        split_u128_into_low_high_bits(alt_block.cumulative_difficulty);
+
+    let alt_block_info = CompactAltBlockInfo {
+        block_hash: alt_block.block_hash,
+        pow_hash: alt_block.pow_hash,
+        height: alt_block.height,
+        weight: alt_block.weight,
+        long_term_weight: alt_block.long_term_weight,
+        cumulative_difficulty_low,
+        cumulative_difficulty_high,
+    };
+
+    tables
+        .alt_blocks_info_mut()
+        .put(&alt_block_height, &alt_block_info)?;
+
+    tables.alt_block_blobs_mut().put(
+        &alt_block_height,
+        StorableVec::wrap_ref(&alt_block.block_blob),
+    )?;
+
+    assert_eq!(alt_block.txs.len(), alt_block.block.transactions.len());
+    for tx in &alt_block.txs {
+        add_alt_transaction_blob(tx, tables)?;
+    }
+
+    Ok(())
+}
+
+/// Retrieves an [`AltBlockInformation`] from the database.
+///
+/// This function will look at only the blocks with the given [`AltBlockHeight::chain_id`], no others
+/// even if they are technically part of this chain.
+#[doc = doc_error!()]
+pub fn get_alt_block(
+    alt_block_height: &AltBlockHeight,
+    tables: &impl Tables,
+) -> Result<AltBlockInformation, RuntimeError> {
+    let block_info = tables.alt_blocks_info().get(alt_block_height)?;
+
+    let block_blob = tables.alt_block_blobs().get(alt_block_height)?.0;
+
+    let block = Block::read(&mut block_blob.as_slice())?;
+
+    let txs = block
+        .transactions
+        .iter()
+        .map(|tx_hash| get_alt_transaction(tx_hash, tables))
+        .collect::<Result<_, RuntimeError>>()?;
+
+    Ok(AltBlockInformation {
+        block,
+        block_blob,
+        txs,
+        block_hash: block_info.block_hash,
+        pow_hash: block_info.pow_hash,
+        height: block_info.height,
+        weight: block_info.weight,
+        long_term_weight: block_info.long_term_weight,
+        cumulative_difficulty: combine_low_high_bits_to_u128(
+            block_info.cumulative_difficulty_low,
+            block_info.cumulative_difficulty_high,
+        ),
+        chain_id: alt_block_height.chain_id.into(),
+    })
+}
+
+/// Retrieves the hash of the block at the given `block_height` on the alt chain with
+/// the given [`ChainId`].
+///
+/// This function will get blocks from the whole chain, for example if you were to ask for height
+/// `0` with any [`ChainId`] (as long that chain actually exists) you will get the main chain genesis.
+///
+#[doc = doc_error!()]
+pub fn get_alt_block_hash(
+    block_height: &BlockHeight,
+    alt_chain: ChainId,
+    tables: &impl Tables,
+) -> Result<BlockHash, RuntimeError> {
+    let alt_chains = tables.alt_chain_infos();
+
+    // First find what [`ChainId`] this block would be stored under.
+    let original_chain = {
+        let mut chain = alt_chain.into();
+        loop {
+            let chain_info = alt_chains.get(&chain)?;
+
+            if chain_info.common_ancestor_height < *block_height {
+                break Chain::Alt(chain.into());
+            }
+
+            match chain_info.parent_chain.into() {
+                Chain::Main => break Chain::Main,
+                Chain::Alt(alt_chain_id) => {
+                    chain = alt_chain_id.into();
+                    continue;
+                }
+            }
+        }
+    };
+
+    // Get the block hash.
+    match original_chain {
+        Chain::Main => {
+            get_block_info(block_height, tables.block_infos()).map(|info| info.block_hash)
+        }
+        Chain::Alt(chain_id) => tables
+            .alt_blocks_info()
+            .get(&AltBlockHeight {
+                chain_id: chain_id.into(),
+                height: *block_height,
+            })
+            .map(|info| info.block_hash),
+    }
+}
+
+/// Retrieves the [`ExtendedBlockHeader`] of the alt-block with an exact [`AltBlockHeight`].
+///
+/// This function will look at only the blocks with the given [`AltBlockHeight::chain_id`], no others
+/// even if they are technically part of this chain.
+///
+#[doc = doc_error!()]
+pub fn get_alt_block_extended_header_from_height(
+    height: &AltBlockHeight,
+    table: &impl Tables,
+) -> Result<ExtendedBlockHeader, RuntimeError> {
+    let block_info = table.alt_blocks_info().get(height)?;
+
+    let block_blob = table.alt_block_blobs().get(height)?.0;
+
+    let block_header = BlockHeader::read(&mut block_blob.as_slice())?;
+
+    Ok(ExtendedBlockHeader {
+        version: HardFork::from_version(block_header.hardfork_version)
+            .expect("Block in DB must have correct version"),
+        vote: block_header.hardfork_version,
+        timestamp: block_header.timestamp,
+        cumulative_difficulty: combine_low_high_bits_to_u128(
+            block_info.cumulative_difficulty_low,
+            block_info.cumulative_difficulty_high,
+        ),
+        block_weight: block_info.weight,
+        long_term_weight: block_info.long_term_weight,
+    })
+}
+
+#[cfg(test)]
+mod tests {
+    use std::num::NonZero;
+
+    use cuprate_database::{Env, EnvInner, TxRw};
+    use cuprate_test_utils::data::{BLOCK_V16_TX0, BLOCK_V1_TX2, BLOCK_V9_TX3};
+    use cuprate_types::{Chain, ChainId};
+
+    use crate::{
+        ops::{
+            alt_block::{
+                add_alt_block, flush_alt_blocks, get_alt_block,
+                get_alt_block_extended_header_from_height, get_alt_block_hash,
+                get_alt_chain_history_ranges,
+            },
+            block::{add_block, pop_block},
+        },
+        tables::{OpenTables, Tables},
+        tests::{assert_all_tables_are_empty, map_verified_block_to_alt, tmp_concrete_env},
+        types::AltBlockHeight,
+    };
+
+    #[expect(clippy::range_plus_one)]
+    #[test]
+    fn all_alt_blocks() {
+        let (env, _tmp) = tmp_concrete_env();
+        let env_inner = env.env_inner();
+        assert_all_tables_are_empty(&env);
+
+        let chain_id = ChainId(NonZero::new(1).unwrap());
+
+        // Add initial block.
+        {
+            let tx_rw = env_inner.tx_rw().unwrap();
+            let mut tables = env_inner.open_tables_mut(&tx_rw).unwrap();
+
+            let mut initial_block = BLOCK_V1_TX2.clone();
+            initial_block.height = 0;
+
+            add_block(&initial_block, &mut tables).unwrap();
+
+            drop(tables);
+            TxRw::commit(tx_rw).unwrap();
+        }
+
+        let alt_blocks = [
+            map_verified_block_to_alt(BLOCK_V9_TX3.clone(), chain_id),
+            map_verified_block_to_alt(BLOCK_V16_TX0.clone(), chain_id),
+        ];
+
+        // Add alt-blocks
+        {
+            let tx_rw = env_inner.tx_rw().unwrap();
+            let mut tables = env_inner.open_tables_mut(&tx_rw).unwrap();
+
+            let mut prev_hash = BLOCK_V1_TX2.block_hash;
+            for (i, mut alt_block) in alt_blocks.into_iter().enumerate() {
+                let height = i + 1;
+
+                alt_block.height = height;
+                alt_block.block.header.previous = prev_hash;
+                alt_block.block_blob = alt_block.block.serialize();
+
+                add_alt_block(&alt_block, &mut tables).unwrap();
+
+                let alt_height = AltBlockHeight {
+                    chain_id: chain_id.into(),
+                    height,
+                };
+
+                let alt_block_2 = get_alt_block(&alt_height, &tables).unwrap();
+                assert_eq!(alt_block.block, alt_block_2.block);
+
+                let headers = get_alt_chain_history_ranges(
+                    0..(height + 1),
+                    chain_id,
+                    tables.alt_chain_infos(),
+                )
+                .unwrap();
+
+                assert_eq!(headers.len(), 2);
+                assert_eq!(headers[1], (Chain::Main, 0..1));
+                assert_eq!(headers[0], (Chain::Alt(chain_id), 1..(height + 1)));
+
+                prev_hash = alt_block.block_hash;
+
+                let header =
+                    get_alt_block_extended_header_from_height(&alt_height, &tables).unwrap();
+
+                assert_eq!(header.timestamp, alt_block.block.header.timestamp);
+                assert_eq!(header.block_weight, alt_block.weight);
+                assert_eq!(header.long_term_weight, alt_block.long_term_weight);
+                assert_eq!(
+                    header.cumulative_difficulty,
+                    alt_block.cumulative_difficulty
+                );
+                assert_eq!(
+                    header.version.as_u8(),
+                    alt_block.block.header.hardfork_version
+                );
+                assert_eq!(header.vote, alt_block.block.header.hardfork_signal);
+
+                let block_hash = get_alt_block_hash(&height, chain_id, &tables).unwrap();
+
+                assert_eq!(block_hash, alt_block.block_hash);
+            }
+
+            drop(tables);
+            TxRw::commit(tx_rw).unwrap();
+        }
+
+        {
+            let mut tx_rw = env_inner.tx_rw().unwrap();
+
+            flush_alt_blocks(&env_inner, &mut tx_rw).unwrap();
+
+            let mut tables = env_inner.open_tables_mut(&tx_rw).unwrap();
+            pop_block(None, &mut tables).unwrap();
+
+            drop(tables);
+            TxRw::commit(tx_rw).unwrap();
+        }
+
+        assert_all_tables_are_empty(&env);
+    }
+}
diff --git a/storage/blockchain/src/ops/alt_block/chain.rs b/storage/blockchain/src/ops/alt_block/chain.rs
new file mode 100644
index 000000000..5b5f3cb1f
--- /dev/null
+++ b/storage/blockchain/src/ops/alt_block/chain.rs
@@ -0,0 +1,117 @@
+use std::cmp::{max, min};
+
+use cuprate_database::{DatabaseRo, DatabaseRw, RuntimeError};
+use cuprate_types::{Chain, ChainId};
+
+use crate::{
+    ops::macros::{doc_add_alt_block_inner_invariant, doc_error},
+    tables::{AltChainInfos, TablesMut},
+    types::{AltBlockHeight, AltChainInfo, BlockHash, BlockHeight},
+};
+
+/// Updates the [`AltChainInfo`] with information on a new alt-block.
+///
+#[doc = doc_add_alt_block_inner_invariant!()]
+#[doc = doc_error!()]
+///
+/// # Panics
+///
+/// This will panic if [`AltBlockHeight::height`] == `0`.
+pub fn update_alt_chain_info(
+    alt_block_height: &AltBlockHeight,
+    prev_hash: &BlockHash,
+    tables: &mut impl TablesMut,
+) -> Result<(), RuntimeError> {
+    let parent_chain = match tables.alt_block_heights().get(prev_hash) {
+        Ok(alt_parent_height) => Chain::Alt(alt_parent_height.chain_id.into()),
+        Err(RuntimeError::KeyNotFound) => Chain::Main,
+        Err(e) => return Err(e),
+    };
+
+    // try update the info if one exists for this chain.
+    let update = tables
+        .alt_chain_infos_mut()
+        .update(&alt_block_height.chain_id, |mut info| {
+            if info.chain_height < alt_block_height.height + 1 {
+                // If the chain height is increasing we only need to update the chain height.
+                info.chain_height = alt_block_height.height + 1;
+            } else {
+                // If the chain height is not increasing we are popping blocks and need to update the
+                // split point.
+                info.common_ancestor_height = alt_block_height.height.checked_sub(1).unwrap();
+                info.parent_chain = parent_chain.into();
+            }
+
+            info.chain_height = alt_block_height.height + 1;
+            Some(info)
+        });
+
+    match update {
+        Ok(()) => return Ok(()),
+        Err(RuntimeError::KeyNotFound) => (),
+        Err(e) => return Err(e),
+    }
+
+    // If one doesn't already exist add it.
+
+    tables.alt_chain_infos_mut().put(
+        &alt_block_height.chain_id,
+        &AltChainInfo {
+            parent_chain: parent_chain.into(),
+            common_ancestor_height: alt_block_height.height.checked_sub(1).unwrap(),
+            chain_height: alt_block_height.height + 1,
+        },
+    )
+}
+
+/// Get the height history of an alt-chain in reverse chronological order.
+///
+/// Height history is a list of height ranges with the corresponding [`Chain`] they are stored under.
+/// For example if your range goes from height `0` the last entry in the list will be [`Chain::Main`]
+/// upto the height where the first split occurs.
+#[doc = doc_error!()]
+pub fn get_alt_chain_history_ranges(
+    range: std::ops::Range<BlockHeight>,
+    alt_chain: ChainId,
+    alt_chain_infos: &impl DatabaseRo<AltChainInfos>,
+) -> Result<Vec<(Chain, std::ops::Range<BlockHeight>)>, RuntimeError> {
+    let mut ranges = Vec::with_capacity(5);
+
+    let mut i = range.end;
+    let mut current_chain_id = alt_chain.into();
+    while i > range.start {
+        let chain_info = alt_chain_infos.get(&current_chain_id)?;
+
+        let start_height = max(range.start, chain_info.common_ancestor_height + 1);
+        let end_height = min(i, chain_info.chain_height);
+
+        ranges.push((
+            Chain::Alt(current_chain_id.into()),
+            start_height..end_height,
+        ));
+        i = chain_info.common_ancestor_height + 1;
+
+        match chain_info.parent_chain.into() {
+            Chain::Main => {
+                ranges.push((Chain::Main, range.start..i));
+                break;
+            }
+            Chain::Alt(alt_chain_id) => {
+                let alt_chain_id = alt_chain_id.into();
+
+                // This shouldn't be possible to hit, however in a test with custom (invalid) block data
+                // this caused an infinite loop.
+                if alt_chain_id == current_chain_id {
+                    return Err(RuntimeError::Io(std::io::Error::other(
+                        "Loop detected in ChainIDs, invalid alt chain.",
+                    )));
+                }
+
+                current_chain_id = alt_chain_id;
+                continue;
+            }
+        }
+    }
+
+    Ok(ranges)
+}
diff --git a/storage/blockchain/src/ops/alt_block/mod.rs b/storage/blockchain/src/ops/alt_block/mod.rs
new file mode 100644
index 000000000..1654d274c
--- /dev/null
+++ b/storage/blockchain/src/ops/alt_block/mod.rs
@@ -0,0 +1,58 @@
+//! Alternative Block/Chain Ops
+//!
+//! Alternative chains are chains that potentially have more proof-of-work than the main-chain
+//! which we are tracking to potentially re-org to.
+//!
+//! Cuprate uses an ID system for alt-chains. When a split is made from the main-chain we generate
+//! a random [`ChainID`](cuprate_types::ChainId) and assign it to the chain:
+//!
+//! ```text
+//!      |
+//!      |
+//!      |   split
+//!      |-------------
+//!      |            |
+//!      |            |
+//!     \|/          \|/
+//!  main-chain    ChainID(X)
+//! ```
+//!
+//! In that example if we were to receive an alt-block which immediately follows the top block of `ChainID(X)`
+//! then that block will also be stored under `ChainID(X)`. However, if it follows from another block from `ChainID(X)`
+//! we will split into a chain with a different ID:
+//!
+//! ```text
+//!      |
+//!      |
+//!      |   split
+//!      |-------------
+//!      |            |   split
+//!      |            |-------------|
+//!      |            |             |
+//!      |            |             |
+//!      |            |             |
+//!     \|/          \|/           \|/
+//!  main-chain    ChainID(X)    ChainID(Z)
+//! ```
+//!
+//! As you can see if we wanted to get all the alt-blocks in `ChainID(Z)` that now includes some blocks from `ChainID(X)` as well.
+//! [`get_alt_chain_history_ranges`] covers this and is the method to get the ranges of heights needed from each [`ChainID`](cuprate_types::ChainId)
+//! to get all the alt-blocks in a given [`ChainID`](cuprate_types::ChainId).
+//!
+//! Although this should be kept in mind as a possibility, because Cuprate's block downloader will only track a single chain it is
+//! unlikely that we will be tracking [`ChainID`](cuprate_types::ChainId)s that don't immediately connect to the main-chain.
+//!
+//! ## Why not use the block's `previous` field?
+//!
+//! Although that would be easier, it makes getting a range of block extremely slow, as we have to build the weight cache to verify
+//! blocks, roughly 100,000 block headers needed, this cost is too high.
+mod block;
+mod chain;
+mod tx;
+
+pub use block::{
+    add_alt_block, flush_alt_blocks, get_alt_block, get_alt_block_extended_header_from_height,
+    get_alt_block_hash,
+};
+pub use chain::{get_alt_chain_history_ranges, update_alt_chain_info};
+pub use tx::{add_alt_transaction_blob, get_alt_transaction};
diff --git a/storage/blockchain/src/ops/alt_block/tx.rs b/storage/blockchain/src/ops/alt_block/tx.rs
new file mode 100644
index 000000000..4185c6cb1
--- /dev/null
+++ b/storage/blockchain/src/ops/alt_block/tx.rs
@@ -0,0 +1,76 @@
+use bytemuck::TransparentWrapper;
+use monero_serai::transaction::Transaction;
+
+use cuprate_database::{DatabaseRo, DatabaseRw, RuntimeError, StorableVec};
+use cuprate_types::VerifiedTransactionInformation;
+
+use crate::{
+    ops::macros::{doc_add_alt_block_inner_invariant, doc_error},
+    tables::{Tables, TablesMut},
+    types::{AltTransactionInfo, TxHash},
+};
+
+/// Adds a [`VerifiedTransactionInformation`] from an alt-block
+/// if it is not already in the DB.
+///
+/// If the transaction is in the main-chain this function will still fill in the
+/// [`AltTransactionInfos`](crate::tables::AltTransactionInfos) table, as that
+/// table holds data which we don't keep around for main-chain txs.
+///
+#[doc = doc_add_alt_block_inner_invariant!()]
+#[doc = doc_error!()]
+pub fn add_alt_transaction_blob(
+    tx: &VerifiedTransactionInformation,
+    tables: &mut impl TablesMut,
+) -> Result<(), RuntimeError> {
+    tables.alt_transaction_infos_mut().put(
+        &tx.tx_hash,
+        &AltTransactionInfo {
+            tx_weight: tx.tx_weight,
+            fee: tx.fee,
+            tx_hash: tx.tx_hash,
+        },
+    )?;
+
+    if tables.tx_ids().get(&tx.tx_hash).is_ok()
+        || tables.alt_transaction_blobs().get(&tx.tx_hash).is_ok()
+    {
+        return Ok(());
+    }
+
+    tables
+        .alt_transaction_blobs_mut()
+        .put(&tx.tx_hash, StorableVec::wrap_ref(&tx.tx_blob))?;
+
+    Ok(())
+}
+
+/// Retrieve a [`VerifiedTransactionInformation`] from the database.
+///
+#[doc = doc_error!()]
+pub fn get_alt_transaction(
+    tx_hash: &TxHash,
+    tables: &impl Tables,
+) -> Result<VerifiedTransactionInformation, RuntimeError> {
+    let tx_info = tables.alt_transaction_infos().get(tx_hash)?;
+
+    let tx_blob = match tables.alt_transaction_blobs().get(tx_hash) {
+        Ok(blob) => blob.0,
+        Err(RuntimeError::KeyNotFound) => {
+            let tx_id = tables.tx_ids().get(tx_hash)?;
+
+            let blob = tables.tx_blobs().get(&tx_id)?;
+
+            blob.0
+        }
+        Err(e) => return Err(e),
+    };
+
+    Ok(VerifiedTransactionInformation {
+        tx: Transaction::read(&mut tx_blob.as_slice()).unwrap(),
+        tx_blob,
+        tx_weight: tx_info.tx_weight,
+        fee: tx_info.fee,
+        tx_hash: tx_info.tx_hash,
+    })
+}
diff --git a/storage/blockchain/src/ops/block.rs b/storage/blockchain/src/ops/block.rs
index 5fc72fc34..af81348f0 100644
--- a/storage/blockchain/src/ops/block.rs
+++ b/storage/blockchain/src/ops/block.rs
@@ -2,16 +2,23 @@
 
 //---------------------------------------------------------------------------------------------------- Import
 use bytemuck::TransparentWrapper;
-use monero_serai::block::Block;
+use monero_serai::block::{Block, BlockHeader};
 
 use cuprate_database::{
     RuntimeError, StorableVec, {DatabaseRo, DatabaseRw},
 };
-use cuprate_helper::map::{combine_low_high_bits_to_u128, split_u128_into_low_high_bits};
-use cuprate_types::{ExtendedBlockHeader, HardFork, VerifiedBlockInformation};
+use cuprate_helper::{
+    map::{combine_low_high_bits_to_u128, split_u128_into_low_high_bits},
+    tx::tx_fee,
+};
+use cuprate_types::{
+    AltBlockInformation, ChainId, ExtendedBlockHeader, HardFork, VerifiedBlockInformation,
+    VerifiedTransactionInformation,
+};
 
 use crate::{
     ops::{
+        alt_block,
         blockchain::{chain_height, cumulative_generated_coins},
         macros::doc_error,
         output::get_rct_num_outputs,
@@ -33,11 +40,6 @@ use crate::{
 /// This function will panic if:
 /// - `block.height > u32::MAX` (not normally possible)
 /// - `block.height` is not != [`chain_height`]
-///
-/// # Already exists
-/// This function will operate normally even if `block` already
-/// exists, i.e., this function will not return `Err` even if you
-/// call this function infinitely with the same block.
 // no inline, too big.
 pub fn add_block(
     block: &VerifiedBlockInformation,
@@ -107,9 +109,8 @@ pub fn add_block(
             cumulative_rct_outs,
             timestamp: block.block.header.timestamp,
             block_hash: block.block_hash,
-            // INVARIANT: #[cfg] @ lib.rs asserts `usize == u64`
-            weight: block.weight as u64,
-            long_term_weight: block.long_term_weight as u64,
+            weight: block.weight,
+            long_term_weight: block.long_term_weight,
         },
     )?;
 
@@ -130,23 +131,24 @@ pub fn add_block(
 /// Remove the top/latest block from the database.
 ///
 /// The removed block's data is returned.
+///
+/// If a [`ChainId`] is specified the popped block will be added to the alt block tables under
+/// that [`ChainId`]. Otherwise, the block will be completely removed from the DB.
 #[doc = doc_error!()]
 ///
 /// In `pop_block()`'s case, [`RuntimeError::KeyNotFound`]
 /// will be returned if there are no blocks left.
 // no inline, too big
 pub fn pop_block(
+    move_to_alt_chain: Option<ChainId>,
     tables: &mut impl TablesMut,
 ) -> Result<(BlockHeight, BlockHash, Block), RuntimeError> {
     //------------------------------------------------------ Block Info
     // Remove block data from tables.
-    let (block_height, block_hash) = {
-        let (block_height, block_info) = tables.block_infos_mut().pop_last()?;
-        (block_height, block_info.block_hash)
-    };
+    let (block_height, block_info) = tables.block_infos_mut().pop_last()?;
 
     // Block heights.
-    tables.block_heights_mut().delete(&block_hash)?;
+    tables.block_heights_mut().delete(&block_info.block_hash)?;
 
     // Block blobs.
     // We deserialize the block blob into a `Block`, such
@@ -156,11 +158,52 @@ pub fn pop_block(
 
     //------------------------------------------------------ Transaction / Outputs / Key Images
     remove_tx(&block.miner_transaction.hash(), tables)?;
-    for tx_hash in &block.transactions {
-        remove_tx(tx_hash, tables)?;
+
+    let remove_tx_iter = block.transactions.iter().map(|tx_hash| {
+        let (_, tx) = remove_tx(tx_hash, tables)?;
+        Ok::<_, RuntimeError>(tx)
+    });
+
+    if let Some(chain_id) = move_to_alt_chain {
+        let txs = remove_tx_iter
+            .map(|result| {
+                let tx = result?;
+                Ok(VerifiedTransactionInformation {
+                    tx_weight: tx.weight(),
+                    tx_blob: tx.serialize(),
+                    tx_hash: tx.hash(),
+                    fee: tx_fee(&tx),
+                    tx,
+                })
+            })
+            .collect::<Result<Vec<VerifiedTransactionInformation>, RuntimeError>>()?;
+
+        alt_block::add_alt_block(
+            &AltBlockInformation {
+                block: block.clone(),
+                block_blob,
+                txs,
+                block_hash: block_info.block_hash,
+                // We know the PoW is valid for this block so just set it so it will always verify as valid.
+                pow_hash: [0; 32],
+                height: block_height,
+                weight: block_info.weight,
+                long_term_weight: block_info.long_term_weight,
+                cumulative_difficulty: combine_low_high_bits_to_u128(
+                    block_info.cumulative_difficulty_low,
+                    block_info.cumulative_difficulty_high,
+                ),
+                chain_id,
+            },
+            tables,
+        )?;
+    } else {
+        for result in remove_tx_iter {
+            drop(result?);
+        }
     }
 
-    Ok((block_height, block_hash, block))
+    Ok((block_height, block_info.block_hash, block))
 }
 
 //---------------------------------------------------------------------------------------------------- `get_block_extended_header_*`
@@ -194,25 +237,21 @@ pub fn get_block_extended_header_from_height(
 ) -> Result<ExtendedBlockHeader, RuntimeError> {
     let block_info = tables.block_infos().get(block_height)?;
     let block_blob = tables.block_blobs().get(block_height)?.0;
-    let block = Block::read(&mut block_blob.as_slice())?;
+    let block_header = BlockHeader::read(&mut block_blob.as_slice())?;
 
     let cumulative_difficulty = combine_low_high_bits_to_u128(
         block_info.cumulative_difficulty_low,
         block_info.cumulative_difficulty_high,
     );
 
-    #[expect(
-        clippy::cast_possible_truncation,
-        reason = "INVARIANT: #[cfg] @ lib.rs asserts `usize == u64`"
-    )]
     Ok(ExtendedBlockHeader {
         cumulative_difficulty,
-        version: HardFork::from_version(block.header.hardfork_version)
+        version: HardFork::from_version(block_header.hardfork_version)
             .expect("Stored block must have a valid hard-fork"),
-        vote: block.header.hardfork_signal,
-        timestamp: block.header.timestamp,
-        block_weight: block_info.weight as usize,
-        long_term_weight: block_info.long_term_weight as usize,
+        vote: block_header.hardfork_signal,
+        timestamp: block_header.timestamp,
+        block_weight: block_info.weight,
+        long_term_weight: block_info.long_term_weight,
     })
 }
 
@@ -272,14 +311,14 @@ mod test {
     use cuprate_database::{Env, EnvInner, TxRw};
     use cuprate_test_utils::data::{BLOCK_V16_TX0, BLOCK_V1_TX2, BLOCK_V9_TX3};
 
-    use super::*;
-
     use crate::{
         ops::tx::{get_tx, tx_exists},
         tables::OpenTables,
         tests::{assert_all_tables_are_empty, tmp_concrete_env, AssertTableLen},
     };
 
+    use super::*;
+
     /// Tests all above block functions.
     ///
     /// Note that this doesn't test the correctness of values added, as the
@@ -414,7 +453,8 @@ mod test {
             for block_hash in block_hashes.into_iter().rev() {
                 println!("pop_block(): block_hash: {}", hex::encode(block_hash));
 
-                let (_popped_height, popped_hash, _popped_block) = pop_block(&mut tables).unwrap();
+                let (_popped_height, popped_hash, _popped_block) =
+                    pop_block(None, &mut tables).unwrap();
 
                 assert_eq!(block_hash, popped_hash);
 
diff --git a/storage/blockchain/src/ops/macros.rs b/storage/blockchain/src/ops/macros.rs
index b7cdba474..18ec50687 100644
--- a/storage/blockchain/src/ops/macros.rs
+++ b/storage/blockchain/src/ops/macros.rs
@@ -31,3 +31,25 @@ When calling this function, ensure that either:
     };
 }
 pub(super) use doc_add_block_inner_invariant;
+
+/// Generate `# Invariant` documentation for internal alt block `fn`'s
+/// that should be called directly with caution.
+///
+/// This is pretty much the same as [`doc_add_block_inner_invariant`],
+/// it's not worth the effort to reduce the duplication.
+macro_rules! doc_add_alt_block_inner_invariant {
+    () => {
+            r#"# ⚠️ Invariant ⚠️
+This function mainly exists to be used internally by the parent function [`crate::ops::alt_block::add_alt_block`].
+
+`add_alt_block()` makes sure all data related to the input is mutated, while
+this function _does not_, it specifically mutates _particular_ tables.
+
+This is usually undesired - although this function is still available to call directly.
+
+When calling this function, ensure that either:
+1. This effect (incomplete database mutation) is what is desired, or that...
+2. ...the other tables will also be mutated to a correct state"#
+    };
+}
+pub(super) use doc_add_alt_block_inner_invariant;
diff --git a/storage/blockchain/src/ops/mod.rs b/storage/blockchain/src/ops/mod.rs
index 4ff7dff1e..285aa2440 100644
--- a/storage/blockchain/src/ops/mod.rs
+++ b/storage/blockchain/src/ops/mod.rs
@@ -94,7 +94,7 @@
 //! // Read the data, assert it is correct.
 //! let tx_rw = env_inner.tx_rw()?;
 //! let mut tables = env_inner.open_tables_mut(&tx_rw)?;
-//! let (height, hash, serai_block) = pop_block(&mut tables)?;
+//! let (height, hash, serai_block) = pop_block(None, &mut tables)?;
 //!
 //! assert_eq!(height, 0);
 //! assert_eq!(serai_block, block.block);
@@ -102,6 +102,7 @@
 //! # Ok(()) }
 //! ```
 
+pub mod alt_block;
 pub mod block;
 pub mod blockchain;
 pub mod key_image;
diff --git a/storage/blockchain/src/service/free.rs b/storage/blockchain/src/service/free.rs
index 2e7c9086e..d8a878c93 100644
--- a/storage/blockchain/src/service/free.rs
+++ b/storage/blockchain/src/service/free.rs
@@ -4,11 +4,14 @@
 use std::sync::Arc;
 
 use cuprate_database::{ConcreteEnv, InitError};
+use cuprate_types::{AltBlockInformation, VerifiedBlockInformation};
 
-use crate::service::{init_read_service, init_write_service};
 use crate::{
     config::Config,
-    service::types::{BlockchainReadHandle, BlockchainWriteHandle},
+    service::{
+        init_read_service, init_write_service,
+        types::{BlockchainReadHandle, BlockchainWriteHandle},
+    },
 };
 
 //---------------------------------------------------------------------------------------------------- Init
@@ -81,6 +84,44 @@ pub(super) const fn compact_history_genesis_not_included<const INITIAL_BLOCKS: u
     top_block_height > INITIAL_BLOCKS && !(top_block_height - INITIAL_BLOCKS + 2).is_power_of_two()
 }
 
+//---------------------------------------------------------------------------------------------------- Map Block
+/// Maps [`AltBlockInformation`] to [`VerifiedBlockInformation`]
+///
+/// # Panics
+/// This will panic if the block is invalid, so should only be used on blocks that have been popped from
+/// the main-chain.
+pub(super) fn map_valid_alt_block_to_verified_block(
+    alt_block: AltBlockInformation,
+) -> VerifiedBlockInformation {
+    let total_fees = alt_block.txs.iter().map(|tx| tx.fee).sum::<u64>();
+    let total_miner_output = alt_block
+        .block
+        .miner_transaction
+        .prefix()
+        .outputs
+        .iter()
+        .map(|out| out.amount.unwrap_or(0))
+        .sum::<u64>();
+
+    VerifiedBlockInformation {
+        block: alt_block.block,
+        block_blob: alt_block.block_blob,
+        txs: alt_block
+            .txs
+            .into_iter()
+            .map(TryInto::try_into)
+            .collect::<Result<_, _>>()
+            .unwrap(),
+        block_hash: alt_block.block_hash,
+        pow_hash: alt_block.pow_hash,
+        height: alt_block.height,
+        generated_coins: total_miner_output - total_fees,
+        weight: alt_block.weight,
+        long_term_weight: alt_block.long_term_weight,
+        cumulative_difficulty: alt_block.cumulative_difficulty,
+    }
+}
+
 //---------------------------------------------------------------------------------------------------- Tests
 
 #[cfg(test)]
diff --git a/storage/blockchain/src/service/mod.rs b/storage/blockchain/src/service/mod.rs
index c774ee493..aa322d06e 100644
--- a/storage/blockchain/src/service/mod.rs
+++ b/storage/blockchain/src/service/mod.rs
@@ -98,7 +98,7 @@
 //!
 //! // Block write was OK.
 //! let response = response_channel.await?;
-//! assert_eq!(response, BlockchainResponse::WriteBlockOk);
+//! assert_eq!(response, BlockchainResponse::Ok);
 //!
 //! // Now, let's try getting the block hash
 //! // of the block we just wrote.
diff --git a/storage/blockchain/src/service/read.rs b/storage/blockchain/src/service/read.rs
index 87f416e8c..b0e7e044c 100644
--- a/storage/blockchain/src/service/read.rs
+++ b/storage/blockchain/src/service/read.rs
@@ -8,6 +8,7 @@ use std::{
 
 use rayon::{
     iter::{IntoParallelIterator, ParallelIterator},
+    prelude::*,
     ThreadPool,
 };
 use thread_local::ThreadLocal;
@@ -17,11 +18,15 @@ use cuprate_database_service::{init_thread_pool, DatabaseReadService, ReaderThre
 use cuprate_helper::map::combine_low_high_bits_to_u128;
 use cuprate_types::{
     blockchain::{BlockchainReadRequest, BlockchainResponse},
-    Chain, ExtendedBlockHeader, OutputOnChain,
+    Chain, ChainId, ExtendedBlockHeader, OutputOnChain,
 };
 
 use crate::{
     ops::{
+        alt_block::{
+            get_alt_block, get_alt_block_extended_header_from_height, get_alt_block_hash,
+            get_alt_chain_history_ranges,
+        },
         block::{
             block_exists, get_block_extended_header_from_height, get_block_height, get_block_info,
         },
@@ -33,8 +38,10 @@ use crate::{
         free::{compact_history_genesis_not_included, compact_history_index_to_height_offset},
         types::{BlockchainReadHandle, ResponseResult},
     },
-    tables::{BlockHeights, BlockInfos, OpenTables, Tables},
-    types::{Amount, AmountIndex, BlockHash, BlockHeight, KeyImage, PreRctOutputId},
+    tables::{AltBlockHeights, BlockHeights, BlockInfos, OpenTables, Tables},
+    types::{
+        AltBlockHeight, Amount, AmountIndex, BlockHash, BlockHeight, KeyImage, PreRctOutputId,
+    },
 };
 
 //---------------------------------------------------------------------------------------------------- init_read_service
@@ -87,7 +94,7 @@ fn map_request(
     match request {
         R::BlockExtendedHeader(block) => block_extended_header(env, block),
         R::BlockHash(block, chain) => block_hash(env, block, chain),
-        R::FindBlock(_) => todo!("Add alt blocks to DB"),
+        R::FindBlock(block_hash) => find_block(env, block_hash),
         R::FilterUnknownHashes(hashes) => filter_unknown_hashes(env, hashes),
         R::BlockExtendedHeaderInRange(range, chain) => {
             block_extended_header_in_range(env, range, chain)
@@ -99,6 +106,7 @@ fn map_request(
         R::KeyImagesSpent(set) => key_images_spent(env, set),
         R::CompactChainHistory => compact_chain_history(env),
         R::FindFirstUnknown(block_ids) => find_first_unknown(env, &block_ids),
+        R::AltBlocksInChain(chain_id) => alt_blocks_in_chain(env, chain_id),
     }
 
     /* SOMEDAY: post-request handling, run some code for each request? */
@@ -197,12 +205,41 @@ fn block_hash(env: &ConcreteEnv, block_height: BlockHeight, chain: Chain) -> Res
 
     let block_hash = match chain {
         Chain::Main => get_block_info(&block_height, &table_block_infos)?.block_hash,
-        Chain::Alt(_) => todo!("Add alt blocks to DB"),
+        Chain::Alt(chain) => {
+            get_alt_block_hash(&block_height, chain, &env_inner.open_tables(&tx_ro)?)?
+        }
     };
 
     Ok(BlockchainResponse::BlockHash(block_hash))
 }
 
+/// [`BlockchainReadRequest::FindBlock`]
+fn find_block(env: &ConcreteEnv, block_hash: BlockHash) -> ResponseResult {
+    // Single-threaded, no `ThreadLocal` required.
+    let env_inner = env.env_inner();
+    let tx_ro = env_inner.tx_ro()?;
+
+    let table_block_heights = env_inner.open_db_ro::<BlockHeights>(&tx_ro)?;
+
+    // Check the main chain first.
+    match table_block_heights.get(&block_hash) {
+        Ok(height) => return Ok(BlockchainResponse::FindBlock(Some((Chain::Main, height)))),
+        Err(RuntimeError::KeyNotFound) => (),
+        Err(e) => return Err(e),
+    }
+
+    let table_alt_block_heights = env_inner.open_db_ro::<AltBlockHeights>(&tx_ro)?;
+
+    match table_alt_block_heights.get(&block_hash) {
+        Ok(height) => Ok(BlockchainResponse::FindBlock(Some((
+            Chain::Alt(height.chain_id.into()),
+            height.height,
+        )))),
+        Err(RuntimeError::KeyNotFound) => Ok(BlockchainResponse::FindBlock(None)),
+        Err(e) => Err(e),
+    }
+}
+
 /// [`BlockchainReadRequest::FilterUnknownHashes`].
 #[inline]
 fn filter_unknown_hashes(env: &ConcreteEnv, mut hashes: HashSet<BlockHash>) -> ResponseResult {
@@ -253,7 +290,37 @@ fn block_extended_header_in_range(
                 get_block_extended_header_from_height(&block_height, tables)
             })
             .collect::<Result<Vec<ExtendedBlockHeader>, RuntimeError>>()?,
-        Chain::Alt(_) => todo!("Add alt blocks to DB"),
+        Chain::Alt(chain_id) => {
+            let ranges = {
+                let tx_ro = tx_ro.get_or_try(|| env_inner.tx_ro())?;
+                let tables = get_tables!(env_inner, tx_ro, tables)?.as_ref();
+                let alt_chains = tables.alt_chain_infos();
+
+                get_alt_chain_history_ranges(range, chain_id, alt_chains)?
+            };
+
+            ranges
+                .par_iter()
+                .rev()
+                .flat_map(|(chain, range)| {
+                    range.clone().into_par_iter().map(|height| {
+                        let tx_ro = tx_ro.get_or_try(|| env_inner.tx_ro())?;
+                        let tables = get_tables!(env_inner, tx_ro, tables)?.as_ref();
+
+                        match *chain {
+                            Chain::Main => get_block_extended_header_from_height(&height, tables),
+                            Chain::Alt(chain_id) => get_alt_block_extended_header_from_height(
+                                &AltBlockHeight {
+                                    chain_id: chain_id.into(),
+                                    height,
+                                },
+                                tables,
+                            ),
+                        }
+                    })
+                })
+                .collect::<Result<Vec<_>, _>>()?
+        }
     };
 
     Ok(BlockchainResponse::BlockExtendedHeaderInRange(vec))
@@ -492,3 +559,45 @@ fn find_first_unknown(env: &ConcreteEnv, block_ids: &[BlockHash]) -> ResponseRes
         BlockchainResponse::FindFirstUnknown(Some((idx, last_known_height + 1)))
     })
 }
+
+/// [`BlockchainReadRequest::AltBlocksInChain`]
+fn alt_blocks_in_chain(env: &ConcreteEnv, chain_id: ChainId) -> ResponseResult {
+    // Prepare tx/tables in `ThreadLocal`.
+    let env_inner = env.env_inner();
+    let tx_ro = thread_local(env);
+    let tables = thread_local(env);
+
+    // Get the history of this alt-chain.
+    let history = {
+        let tx_ro = tx_ro.get_or_try(|| env_inner.tx_ro())?;
+        let tables = get_tables!(env_inner, tx_ro, tables)?.as_ref();
+        get_alt_chain_history_ranges(0..usize::MAX, chain_id, tables.alt_chain_infos())?
+    };
+
+    // Get all the blocks until we join the main-chain.
+    let blocks = history
+        .par_iter()
+        .rev()
+        .skip(1)
+        .flat_map(|(chain_id, range)| {
+            let Chain::Alt(chain_id) = chain_id else {
+                panic!("Should not have main chain blocks here we skipped last range");
+            };
+
+            range.clone().into_par_iter().map(|height| {
+                let tx_ro = tx_ro.get_or_try(|| env_inner.tx_ro())?;
+                let tables = get_tables!(env_inner, tx_ro, tables)?.as_ref();
+
+                get_alt_block(
+                    &AltBlockHeight {
+                        chain_id: (*chain_id).into(),
+                        height,
+                    },
+                    tables,
+                )
+            })
+        })
+        .collect::<Result<_, _>>()?;
+
+    Ok(BlockchainResponse::AltBlocksInChain(blocks))
+}
diff --git a/storage/blockchain/src/service/tests.rs b/storage/blockchain/src/service/tests.rs
index c314bb5ee..b3ccbbd8f 100644
--- a/storage/blockchain/src/service/tests.rs
+++ b/storage/blockchain/src/service/tests.rs
@@ -13,13 +13,14 @@ use std::{
 };
 
 use pretty_assertions::assert_eq;
+use rand::Rng;
 use tower::{Service, ServiceExt};
 
 use cuprate_database::{ConcreteEnv, DatabaseIter, DatabaseRo, Env, EnvInner, RuntimeError};
 use cuprate_test_utils::data::{BLOCK_V16_TX0, BLOCK_V1_TX2, BLOCK_V9_TX3};
 use cuprate_types::{
     blockchain::{BlockchainReadRequest, BlockchainResponse, BlockchainWriteRequest},
-    Chain, OutputOnChain, VerifiedBlockInformation,
+    Chain, ChainId, OutputOnChain, VerifiedBlockInformation,
 };
 
 use crate::{
@@ -31,7 +32,7 @@ use crate::{
     },
     service::{init, BlockchainReadHandle, BlockchainWriteHandle},
     tables::{OpenTables, Tables, TablesIter},
-    tests::AssertTableLen,
+    tests::{map_verified_block_to_alt, AssertTableLen},
     types::{Amount, AmountIndex, PreRctOutputId},
 };
 
@@ -87,7 +88,7 @@ async fn test_template(
         let request = BlockchainWriteRequest::WriteBlock(block);
         let response_channel = writer.call(request);
         let response = response_channel.await.unwrap();
-        assert_eq!(response, BlockchainResponse::WriteBlockOk);
+        assert_eq!(response, BlockchainResponse::Ok);
     }
 
     //----------------------------------------------------------------------- Reset the transaction
@@ -415,3 +416,92 @@ async fn v16_tx0() {
     )
     .await;
 }
+
+/// Tests the alt-chain requests and responses.
+#[tokio::test]
+async fn alt_chain_requests() {
+    let (reader, mut writer, _, _tempdir) = init_service();
+
+    // Set up the test by adding blocks to the main-chain.
+    for (i, mut block) in [BLOCK_V9_TX3.clone(), BLOCK_V16_TX0.clone()]
+        .into_iter()
+        .enumerate()
+    {
+        block.height = i;
+
+        let request = BlockchainWriteRequest::WriteBlock(block);
+        writer.call(request).await.unwrap();
+    }
+
+    // Generate the alt-blocks.
+    let mut prev_hash = BLOCK_V9_TX3.block_hash;
+    let mut chain_id = 1;
+    let alt_blocks = [&BLOCK_V16_TX0, &BLOCK_V9_TX3, &BLOCK_V1_TX2]
+        .into_iter()
+        .enumerate()
+        .map(|(i, block)| {
+            let mut block = (**block).clone();
+            block.height = i + 1;
+            block.block.header.previous = prev_hash;
+            block.block_blob = block.block.serialize();
+
+            prev_hash = block.block_hash;
+            // Randomly either keep the [`ChainId`] the same or change it to a new value.
+            chain_id += rand::thread_rng().gen_range(0..=1);
+
+            map_verified_block_to_alt(block, ChainId(chain_id.try_into().unwrap()))
+        })
+        .collect::<Vec<_>>();
+
+    for block in &alt_blocks {
+        // Request a block to be written, assert it was written.
+        let request = BlockchainWriteRequest::WriteAltBlock(block.clone());
+        let response_channel = writer.call(request);
+        let response = response_channel.await.unwrap();
+        assert_eq!(response, BlockchainResponse::Ok);
+    }
+
+    // Get the full alt-chain
+    let request = BlockchainReadRequest::AltBlocksInChain(ChainId(chain_id.try_into().unwrap()));
+    let response = reader.clone().oneshot(request).await.unwrap();
+
+    let BlockchainResponse::AltBlocksInChain(blocks) = response else {
+        panic!("Wrong response type was returned");
+    };
+
+    assert_eq!(blocks.len(), alt_blocks.len());
+    for (got_block, alt_block) in blocks.into_iter().zip(alt_blocks) {
+        assert_eq!(got_block.block_blob, alt_block.block_blob);
+        assert_eq!(got_block.block_hash, alt_block.block_hash);
+        assert_eq!(got_block.chain_id, alt_block.chain_id);
+        assert_eq!(got_block.txs, alt_block.txs);
+    }
+
+    // Flush all alt blocks.
+    let request = BlockchainWriteRequest::FlushAltBlocks;
+    let response = writer.ready().await.unwrap().call(request).await.unwrap();
+    assert_eq!(response, BlockchainResponse::Ok);
+
+    // Pop blocks from the main chain
+    let request = BlockchainWriteRequest::PopBlocks(1);
+    let response = writer.ready().await.unwrap().call(request).await.unwrap();
+
+    let BlockchainResponse::PopBlocks(old_main_chain_id) = response else {
+        panic!("Wrong response type was returned");
+    };
+
+    // Check we have popped the top block.
+    let request = BlockchainReadRequest::ChainHeight;
+    let response = reader.clone().oneshot(request).await.unwrap();
+    assert!(matches!(response, BlockchainResponse::ChainHeight(1, _)));
+
+    // Attempt to add the popped block back.
+    let request = BlockchainWriteRequest::ReverseReorg(old_main_chain_id);
+    let response = writer.ready().await.unwrap().call(request).await.unwrap();
+    assert_eq!(response, BlockchainResponse::Ok);
+
+    // Check we have the popped block back.
+    let request = BlockchainReadRequest::ChainHeight;
+    let response = reader.clone().oneshot(request).await.unwrap();
+    assert!(matches!(response, BlockchainResponse::ChainHeight(2, _)));
+}
diff --git a/storage/blockchain/src/service/write.rs b/storage/blockchain/src/service/write.rs
index 816afc4f5..07162d2ac 100644
--- a/storage/blockchain/src/service/write.rs
+++ b/storage/blockchain/src/service/write.rs
@@ -1,20 +1,30 @@
 //! Database writer thread definitions and logic.
-
 //---------------------------------------------------------------------------------------------------- Import
 use std::sync::Arc;
 
-use cuprate_database::{ConcreteEnv, Env, EnvInner, RuntimeError, TxRw};
+use cuprate_database::{ConcreteEnv, DatabaseRo, Env, EnvInner, RuntimeError, TxRw};
 use cuprate_database_service::DatabaseWriteHandle;
 use cuprate_types::{
     blockchain::{BlockchainResponse, BlockchainWriteRequest},
-    VerifiedBlockInformation,
+    AltBlockInformation, Chain, ChainId, VerifiedBlockInformation,
 };
 
 use crate::{
-    service::types::{BlockchainWriteHandle, ResponseResult},
-    tables::OpenTables,
+    service::{
+        free::map_valid_alt_block_to_verified_block,
+        types::{BlockchainWriteHandle, ResponseResult},
+    },
+    tables::{OpenTables, Tables},
+    types::AltBlockHeight,
 };
 
+/// Write functions within this module abort if the write transaction
+/// could not be aborted successfully to maintain atomicity.
+///
+/// This is the panic message if the `abort()` fails.
+const TX_RW_ABORT_FAIL: &str =
+    "Could not maintain blockchain database atomicity by aborting write transaction";
+
 //---------------------------------------------------------------------------------------------------- init_write_service
 /// Initialize the blockchain write service from a [`ConcreteEnv`].
 pub fn init_write_service(env: Arc<ConcreteEnv>) -> BlockchainWriteHandle {
@@ -29,6 +39,12 @@ fn handle_blockchain_request(
 ) -> Result<BlockchainResponse, RuntimeError> {
     match req {
         BlockchainWriteRequest::WriteBlock(block) => write_block(env, block),
+        BlockchainWriteRequest::WriteAltBlock(alt_block) => write_alt_block(env, alt_block),
+        BlockchainWriteRequest::PopBlocks(numb_blocks) => pop_blocks(env, *numb_blocks),
+        BlockchainWriteRequest::ReverseReorg(old_main_chain_id) => {
+            reverse_reorg(env, *old_main_chain_id)
+        }
+        BlockchainWriteRequest::FlushAltBlocks => flush_alt_blocks(env),
     }
 }
 
@@ -55,13 +71,140 @@ fn write_block(env: &ConcreteEnv, block: &VerifiedBlockInformation) -> ResponseR
     match result {
         Ok(()) => {
             TxRw::commit(tx_rw)?;
-            Ok(BlockchainResponse::WriteBlockOk)
+            Ok(BlockchainResponse::Ok)
+        }
+        Err(e) => {
+            TxRw::abort(tx_rw).expect(TX_RW_ABORT_FAIL);
+            Err(e)
+        }
+    }
+}
+
+/// [`BlockchainWriteRequest::WriteAltBlock`].
+#[inline]
+fn write_alt_block(env: &ConcreteEnv, block: &AltBlockInformation) -> ResponseResult {
+    let env_inner = env.env_inner();
+    let tx_rw = env_inner.tx_rw()?;
+
+    let result = {
+        let mut tables_mut = env_inner.open_tables_mut(&tx_rw)?;
+        crate::ops::alt_block::add_alt_block(block, &mut tables_mut)
+    };
+
+    match result {
+        Ok(()) => {
+            TxRw::commit(tx_rw)?;
+            Ok(BlockchainResponse::Ok)
+        }
+        Err(e) => {
+            TxRw::abort(tx_rw).expect(TX_RW_ABORT_FAIL);
+            Err(e)
+        }
+    }
+}
+
+/// [`BlockchainWriteRequest::PopBlocks`].
+fn pop_blocks(env: &ConcreteEnv, numb_blocks: usize) -> ResponseResult {
+    let env_inner = env.env_inner();
+    let mut tx_rw = env_inner.tx_rw()?;
+
+    // FIXME: turn this function into a try block once stable.
+    let mut result = || {
+        // flush all the current alt blocks as they may reference blocks to be popped.
+        crate::ops::alt_block::flush_alt_blocks(&env_inner, &mut tx_rw)?;
+
+        let mut tables_mut = env_inner.open_tables_mut(&tx_rw)?;
+        // generate a `ChainId` for the popped blocks.
+        let old_main_chain_id = ChainId(rand::random());
+
+        // pop the blocks
+        for _ in 0..numb_blocks {
+            crate::ops::block::pop_block(Some(old_main_chain_id), &mut tables_mut)?;
+        }
+
+        Ok(old_main_chain_id)
+    };
+
+    match result() {
+        Ok(old_main_chain_id) => {
+            TxRw::commit(tx_rw)?;
+            Ok(BlockchainResponse::PopBlocks(old_main_chain_id))
+        }
+        Err(e) => {
+            TxRw::abort(tx_rw).expect(TX_RW_ABORT_FAIL);
+            Err(e)
+        }
+    }
+}
+
+/// [`BlockchainWriteRequest::ReverseReorg`].
+fn reverse_reorg(env: &ConcreteEnv, chain_id: ChainId) -> ResponseResult {
+    let env_inner = env.env_inner();
+    let mut tx_rw = env_inner.tx_rw()?;
+
+    // FIXME: turn this function into a try block once stable.
+    let mut result = || {
+        let mut tables_mut = env_inner.open_tables_mut(&tx_rw)?;
+
+        let chain_info = tables_mut.alt_chain_infos().get(&chain_id.into())?;
+        // Although this doesn't guarantee the chain was popped from the main-chain, it's an easy
+        // thing for us to check.
+        assert_eq!(Chain::from(chain_info.parent_chain), Chain::Main);
+
+        let top_block_height =
+            crate::ops::blockchain::top_block_height(tables_mut.block_heights())?;
+
+        // pop any blocks that were added as part of a re-org.
+        for _ in chain_info.common_ancestor_height..top_block_height {
+            crate::ops::block::pop_block(None, &mut tables_mut)?;
+        }
+
+        // Add the old main chain blocks back to the main chain.
+        for height in (chain_info.common_ancestor_height + 1)..chain_info.chain_height {
+            let alt_block = crate::ops::alt_block::get_alt_block(
+                &AltBlockHeight {
+                    chain_id: chain_id.into(),
+                    height,
+                },
+                &tables_mut,
+            )?;
+            let verified_block = map_valid_alt_block_to_verified_block(alt_block);
+            crate::ops::block::add_block(&verified_block, &mut tables_mut)?;
+        }
+
+        drop(tables_mut);
+        crate::ops::alt_block::flush_alt_blocks(&env_inner, &mut tx_rw)?;
+
+        Ok(())
+    };
+
+    match result() {
+        Ok(()) => {
+            TxRw::commit(tx_rw)?;
+            Ok(BlockchainResponse::Ok)
+        }
+        Err(e) => {
+            TxRw::abort(tx_rw).expect(TX_RW_ABORT_FAIL);
+            Err(e)
+        }
+    }
+}
+
+/// [`BlockchainWriteRequest::FlushAltBlocks`].
+#[inline]
+fn flush_alt_blocks(env: &ConcreteEnv) -> ResponseResult {
+    let env_inner = env.env_inner();
+    let mut tx_rw = env_inner.tx_rw()?;
+
+    let result = crate::ops::alt_block::flush_alt_blocks(&env_inner, &mut tx_rw);
+
+    match result {
+        Ok(()) => {
+            TxRw::commit(tx_rw)?;
+            Ok(BlockchainResponse::Ok)
         }
         Err(e) => {
-            // INVARIANT: ensure database atomicity by aborting
-            // the transaction on `add_block()` failures.
-            TxRw::abort(tx_rw)
-                .expect("could not maintain database atomicity by aborting write transaction");
+            TxRw::abort(tx_rw).expect(TX_RW_ABORT_FAIL);
             Err(e)
         }
     }
diff --git a/storage/blockchain/src/tables.rs b/storage/blockchain/src/tables.rs
index 122ac31b4..75c33ae7b 100644
--- a/storage/blockchain/src/tables.rs
+++ b/storage/blockchain/src/tables.rs
@@ -17,8 +17,9 @@
 
 //---------------------------------------------------------------------------------------------------- Import
 use crate::types::{
-    Amount, AmountIndex, AmountIndices, BlockBlob, BlockHash, BlockHeight, BlockInfo, KeyImage,
-    Output, PreRctOutputId, PrunableBlob, PrunableHash, PrunedBlob, RctOutput, TxBlob, TxHash,
+    AltBlockHeight, AltChainInfo, AltTransactionInfo, Amount, AmountIndex, AmountIndices,
+    BlockBlob, BlockHash, BlockHeight, BlockInfo, CompactAltBlockInfo, KeyImage, Output,
+    PreRctOutputId, PrunableBlob, PrunableHash, PrunedBlob, RawChainId, RctOutput, TxBlob, TxHash,
     TxId, UnlockTime,
 };
 
@@ -129,6 +130,40 @@ cuprate_database::define_tables! {
     /// Transactions without unlock times will not exist in this table.
     14 => TxUnlockTime,
     TxId => UnlockTime,
+
+    /// Information on alt-chains.
+    15 => AltChainInfos,
+    RawChainId => AltChainInfo,
+
+    /// Alt-block heights.
+    ///
+    /// Contains the height of all alt-blocks.
+    16 => AltBlockHeights,
+    BlockHash => AltBlockHeight,
+
+    /// Alt-block information.
+    ///
+    /// Contains information on all alt-blocks.
+    17 => AltBlocksInfo,
+    AltBlockHeight => CompactAltBlockInfo,
+
+    /// Alt-block blobs.
+    ///
+    /// Contains the raw bytes of all alt-blocks.
+    18 => AltBlockBlobs,
+    AltBlockHeight => BlockBlob,
+
+    /// Alt-block transaction blobs.
+    ///
+    /// Contains the raw bytes of alt transactions, if those transactions are not in the main-chain.
+    19 => AltTransactionBlobs,
+    TxHash => TxBlob,
+
+    /// Alt-block transaction information.
+    ///
+    /// Contains information on all alt transactions, even if they are in the main-chain.
+    20 => AltTransactionInfos,
+    TxHash => AltTransactionInfo,
 }
 
 //---------------------------------------------------------------------------------------------------- Tests
diff --git a/storage/blockchain/src/tests.rs b/storage/blockchain/src/tests.rs
index 65527e102..d57a37154 100644
--- a/storage/blockchain/src/tests.rs
+++ b/storage/blockchain/src/tests.rs
@@ -10,6 +10,7 @@ use std::{borrow::Cow, fmt::Debug};
 use pretty_assertions::assert_eq;
 
 use cuprate_database::{ConcreteEnv, DatabaseRo, Env, EnvInner};
+use cuprate_types::{AltBlockInformation, ChainId, VerifiedBlockInformation};
 
 use crate::{
     config::ConfigBuilder,
@@ -88,3 +89,21 @@ pub(crate) fn assert_all_tables_are_empty(env: &ConcreteEnv) {
     assert!(tables.all_tables_empty().unwrap());
     assert_eq!(crate::ops::tx::get_num_tx(tables.tx_ids()).unwrap(), 0);
 }
+
+pub(crate) fn map_verified_block_to_alt(
+    verified_block: VerifiedBlockInformation,
+    chain_id: ChainId,
+) -> AltBlockInformation {
+    AltBlockInformation {
+        block: verified_block.block,
+        block_blob: verified_block.block_blob,
+        txs: verified_block.txs,
+        block_hash: verified_block.block_hash,
+        pow_hash: verified_block.pow_hash,
+        height: verified_block.height,
+        weight: verified_block.weight,
+        long_term_weight: verified_block.long_term_weight,
+        cumulative_difficulty: verified_block.cumulative_difficulty,
+        chain_id,
+    }
+}
diff --git a/storage/blockchain/src/types.rs b/storage/blockchain/src/types.rs
index eb1dc6479..6afd3d4bb 100644
--- a/storage/blockchain/src/types.rs
+++ b/storage/blockchain/src/types.rs
@@ -41,12 +41,14 @@
 #![forbid(unsafe_code)] // if you remove this line i will steal your monero
 
 //---------------------------------------------------------------------------------------------------- Import
-use bytemuck::{Pod, Zeroable};
+use std::num::NonZero;
 
+use bytemuck::{Pod, Zeroable};
 #[cfg(feature = "serde")]
 use serde::{Deserialize, Serialize};
 
 use cuprate_database::{Key, StorableVec};
+use cuprate_types::{Chain, ChainId};
 
 //---------------------------------------------------------------------------------------------------- Aliases
 // These type aliases exist as many Monero-related types are the exact same.
@@ -187,7 +189,7 @@ pub struct BlockInfo {
     /// The adjusted block size, in bytes.
     ///
     /// See [`block_weight`](https://monero-book.cuprate.org/consensus_rules/blocks/weights.html#blocks-weight).
-    pub weight: u64,
+    pub weight: usize,
     /// Least-significant 64 bits of the 128-bit cumulative difficulty.
     pub cumulative_difficulty_low: u64,
     /// Most-significant 64 bits of the 128-bit cumulative difficulty.
@@ -199,7 +201,7 @@ pub struct BlockInfo {
     /// The long term block weight, based on the median weight of the preceding `100_000` blocks.
     ///
     /// See [`long_term_weight`](https://monero-book.cuprate.org/consensus_rules/blocks/weights.html#long-term-block-weight).
-    pub long_term_weight: u64,
+    pub long_term_weight: usize,
 }
 
 //---------------------------------------------------------------------------------------------------- OutputFlags
@@ -324,6 +326,259 @@ pub struct RctOutput {
 }
 // TODO: local_index?
 
+//---------------------------------------------------------------------------------------------------- RawChain
+/// [`Chain`] in a format which can be stored in the DB.
+///
+/// Implements [`Into`] and [`From`] for [`Chain`].
+///
+/// ```rust
+/// # use std::borrow::*;
+/// # use cuprate_blockchain::{*, types::*};
+/// use cuprate_database::Storable;
+/// use cuprate_types::Chain;
+///
+/// // Assert Storable is correct.
+/// let a: RawChain = Chain::Main.into();
+/// let b = Storable::as_bytes(&a);
+/// let c: RawChain = Storable::from_bytes(b);
+/// assert_eq!(a, c);
+/// ```
+///
+/// # Size & Alignment
+/// ```rust
+/// # use cuprate_blockchain::types::*;
+/// assert_eq!(size_of::<RawChain>(), 8);
+/// assert_eq!(align_of::<RawChain>(), 8);
+/// ```
+#[derive(Copy, Clone, Debug, PartialEq, PartialOrd, Eq, Ord, Hash, Pod, Zeroable)]
+#[repr(transparent)]
+pub struct RawChain(u64);
+
+impl From<Chain> for RawChain {
+    fn from(value: Chain) -> Self {
+        match value {
+            Chain::Main => Self(0),
+            Chain::Alt(chain_id) => Self(chain_id.0.get()),
+        }
+    }
+}
+
+impl From<RawChain> for Chain {
+    fn from(value: RawChain) -> Self {
+        NonZero::new(value.0).map_or(Self::Main, |id| Self::Alt(ChainId(id)))
+    }
+}
+
+impl From<RawChainId> for RawChain {
+    fn from(value: RawChainId) -> Self {
+        // A [`ChainID`] with an inner value of `0` is invalid.
+        assert_ne!(value.0, 0);
+
+        Self(value.0)
+    }
+}
+
+//---------------------------------------------------------------------------------------------------- RawChainId
+/// [`ChainId`] in a format which can be stored in the DB.
+///
+/// Implements [`Into`] and [`From`] for [`ChainId`].
+///
+/// ```rust
+/// # use std::borrow::*;
+/// # use cuprate_blockchain::{*, types::*};
+/// use cuprate_database::Storable;
+/// use cuprate_types::ChainId;
+///
+/// // Assert Storable is correct.
+/// let a: RawChainId = ChainId(10.try_into().unwrap()).into();
+/// let b = Storable::as_bytes(&a);
+/// let c: RawChainId = Storable::from_bytes(b);
+/// assert_eq!(a, c);
+/// ```
+///
+/// # Size & Alignment
+/// ```rust
+/// # use cuprate_blockchain::types::*;
+/// assert_eq!(size_of::<RawChainId>(), 8);
+/// assert_eq!(align_of::<RawChainId>(), 8);
+/// ```
+#[derive(Copy, Clone, Debug, PartialEq, PartialOrd, Eq, Ord, Hash, Pod, Zeroable)]
+#[repr(transparent)]
+pub struct RawChainId(u64);
+
+impl From<ChainId> for RawChainId {
+    fn from(value: ChainId) -> Self {
+        Self(value.0.get())
+    }
+}
+
+impl From<RawChainId> for ChainId {
+    fn from(value: RawChainId) -> Self {
+        Self(NonZero::new(value.0).expect("RawChainId cannot have a value of `0`"))
+    }
+}
+
+impl Key for RawChainId {}
+
+//---------------------------------------------------------------------------------------------------- AltChainInfo
+/// Information on an alternative chain.
+///
+/// ```rust
+/// # use std::borrow::*;
+/// # use cuprate_blockchain::{*, types::*};
+/// use cuprate_database::Storable;
+/// use cuprate_types::Chain;
+///
+/// // Assert Storable is correct.
+/// let a: AltChainInfo = AltChainInfo {
+///     parent_chain: Chain::Main.into(),
+///     common_ancestor_height: 0,
+///     chain_height: 1,
+/// };
+/// let b = Storable::as_bytes(&a);
+/// let c: AltChainInfo = Storable::from_bytes(b);
+/// assert_eq!(a, c);
+/// ```
+///
+/// # Size & Alignment
+/// ```rust
+/// # use cuprate_blockchain::types::*;
+/// assert_eq!(size_of::<AltChainInfo>(), 24);
+/// assert_eq!(align_of::<AltChainInfo>(), 8);
+/// ```
+#[derive(Copy, Clone, Debug, PartialEq, PartialOrd, Eq, Ord, Hash, Pod, Zeroable)]
+#[repr(C)]
+pub struct AltChainInfo {
+    /// The chain this alt chain forks from.
+    pub parent_chain: RawChain,
+    /// The height of the first block we share with the parent chain.
+    pub common_ancestor_height: usize,
+    /// The chain height of the blocks in this alt chain.
+    pub chain_height: usize,
+}
+
+//---------------------------------------------------------------------------------------------------- AltBlockHeight
+/// Represents the height of a block on an alt-chain.
+///
+/// ```rust
+/// # use std::borrow::*;
+/// # use cuprate_blockchain::{*, types::*};
+/// use cuprate_database::Storable;
+/// use cuprate_types::ChainId;
+///
+/// // Assert Storable is correct.
+/// let a: AltBlockHeight = AltBlockHeight {
+///     chain_id: ChainId(1.try_into().unwrap()).into(),
+///     height: 1,
+/// };
+/// let b = Storable::as_bytes(&a);
+/// let c: AltBlockHeight = Storable::from_bytes(b);
+/// assert_eq!(a, c);
+/// ```
+///
+/// # Size & Alignment
+/// ```rust
+/// # use cuprate_blockchain::types::*;
+/// assert_eq!(size_of::<AltBlockHeight>(), 16);
+/// assert_eq!(align_of::<AltBlockHeight>(), 8);
+/// ```
+#[derive(Copy, Clone, Debug, PartialEq, PartialOrd, Eq, Ord, Hash, Pod, Zeroable)]
+#[repr(C)]
+pub struct AltBlockHeight {
+    /// The [`ChainId`] of the chain this alt block is on, in raw form.
+    pub chain_id: RawChainId,
+    /// The height of this alt-block.
+    pub height: usize,
+}
+
+impl Key for AltBlockHeight {}
+
+//---------------------------------------------------------------------------------------------------- CompactAltBlockInfo
+/// Represents information on an alt-chain.
+///
+/// ```rust
+/// # use std::borrow::*;
+/// # use cuprate_blockchain::{*, types::*};
+/// use cuprate_database::Storable;
+///
+/// // Assert Storable is correct.
+/// let a: CompactAltBlockInfo = CompactAltBlockInfo {
+///     block_hash: [1; 32],
+///     pow_hash: [2; 32],
+///     height: 10,
+///     weight: 20,
+///     long_term_weight: 30,
+///     cumulative_difficulty_low: 40,
+///     cumulative_difficulty_high: 50,
+/// };
+///     
+/// let b = Storable::as_bytes(&a);
+/// let c: CompactAltBlockInfo = Storable::from_bytes(b);
+/// assert_eq!(a, c);
+/// ```
+///
+/// # Size & Alignment
+/// ```rust
+/// # use cuprate_blockchain::types::*;
+/// assert_eq!(size_of::<CompactAltBlockInfo>(), 104);
+/// assert_eq!(align_of::<CompactAltBlockInfo>(), 8);
+/// ```
+#[derive(Copy, Clone, Debug, PartialEq, PartialOrd, Eq, Ord, Hash, Pod, Zeroable)]
+#[repr(C)]
+pub struct CompactAltBlockInfo {
+    /// The block's hash.
+    pub block_hash: [u8; 32],
+    /// The block's proof-of-work hash.
+    pub pow_hash: [u8; 32],
+    /// The block's height.
+    pub height: usize,
+    /// The adjusted block size, in bytes.
+    pub weight: usize,
+    /// The long term block weight, which is the weight factored in with previous block weights.
+    pub long_term_weight: usize,
+    /// The low 64 bits of the cumulative difficulty.
+    pub cumulative_difficulty_low: u64,
+    /// The high 64 bits of the cumulative difficulty.
+    pub cumulative_difficulty_high: u64,
+}
+
+//---------------------------------------------------------------------------------------------------- AltTransactionInfo
+/// Represents information on an alt transaction.
+///
+/// ```rust
+/// # use std::borrow::*;
+/// # use cuprate_blockchain::{*, types::*};
+/// use cuprate_database::Storable;
+///
+/// // Assert Storable is correct.
+/// let a: AltTransactionInfo = AltTransactionInfo {
+///     tx_weight: 1,
+///     fee: 6,
+///     tx_hash: [6; 32],
+/// };
+///     
+/// let b = Storable::as_bytes(&a);
+/// let c: AltTransactionInfo = Storable::from_bytes(b);
+/// assert_eq!(a, c);
+/// ```
+///
+/// # Size & Alignment
+/// ```rust
+/// # use cuprate_blockchain::types::*;
+/// assert_eq!(size_of::<AltTransactionInfo>(), 48);
+/// assert_eq!(align_of::<AltTransactionInfo>(), 8);
+/// ```
+#[derive(Copy, Clone, Debug, PartialEq, PartialOrd, Eq, Ord, Hash, Pod, Zeroable)]
+#[repr(C)]
+pub struct AltTransactionInfo {
+    /// The transaction's weight.
+    pub tx_weight: usize,
+    /// The transaction's total fees.
+    pub fee: u64,
+    /// The transaction's hash.
+    pub tx_hash: [u8; 32],
+}
+
 //---------------------------------------------------------------------------------------------------- Tests
 #[cfg(test)]
 mod test {
diff --git a/test-utils/Cargo.toml b/test-utils/Cargo.toml
index a96a9cfcd..a38f6c9ab 100644
--- a/test-utils/Cargo.toml
+++ b/test-utils/Cargo.toml
@@ -7,7 +7,7 @@ authors = ["Boog900", "hinto-janai"]
 
 [dependencies]
 cuprate-types             = { path = "../types" }
-cuprate-helper            = { path = "../helper", features = ["map"] }
+cuprate-helper            = { path = "../helper", features = ["map", "tx"] }
 cuprate-wire              = { path = "../net/wire" }
 cuprate-p2p-core          = { path = "../p2p/p2p-core", features = ["borsh"] }
 
diff --git a/test-utils/src/data/mod.rs b/test-utils/src/data/mod.rs
index b9d42fb86..3be409fe1 100644
--- a/test-utils/src/data/mod.rs
+++ b/test-utils/src/data/mod.rs
@@ -25,13 +25,11 @@
 //! let tx: VerifiedTransactionInformation = TX_V1_SIG0.clone();
 //! ```
 
-mod constants;
 pub use constants::{
     BLOCK_43BD1F, BLOCK_5ECB7E, BLOCK_BBD604, BLOCK_F91043, TX_2180A8, TX_3BC7FF, TX_84D48D,
     TX_9E3F73, TX_B6B439, TX_D7FEBD, TX_E2D393, TX_E57440,
 };
+pub use statics::{BLOCK_V16_TX0, BLOCK_V1_TX2, BLOCK_V9_TX3, TX_V1_SIG0, TX_V1_SIG2, TX_V2_RCT3};
 
+mod constants;
 mod statics;
-pub use statics::{
-    tx_fee, BLOCK_V16_TX0, BLOCK_V1_TX2, BLOCK_V9_TX3, TX_V1_SIG0, TX_V1_SIG2, TX_V2_RCT3,
-};
diff --git a/test-utils/src/data/statics.rs b/test-utils/src/data/statics.rs
index 8b98171a2..2ae97115f 100644
--- a/test-utils/src/data/statics.rs
+++ b/test-utils/src/data/statics.rs
@@ -8,12 +8,12 @@
 //---------------------------------------------------------------------------------------------------- Import
 use std::sync::LazyLock;
 
-use cuprate_helper::map::combine_low_high_bits_to_u128;
-use cuprate_types::{VerifiedBlockInformation, VerifiedTransactionInformation};
 use hex_literal::hex;
-use monero_serai::transaction::Input;
 use monero_serai::{block::Block, transaction::Transaction};
 
+use cuprate_helper::{map::combine_low_high_bits_to_u128, tx::tx_fee};
+use cuprate_types::{VerifiedBlockInformation, VerifiedTransactionInformation};
+
 use crate::data::constants::{
     BLOCK_43BD1F, BLOCK_5ECB7E, BLOCK_F91043, TX_2180A8, TX_3BC7FF, TX_84D48D, TX_9E3F73,
     TX_B6B439, TX_D7FEBD, TX_E2D393, TX_E57440,
@@ -110,36 +110,6 @@ fn to_tx_verification_data(tx_blob: impl AsRef<[u8]>) -> VerifiedTransactionInfo
     }
 }
 
-/// Calculates the fee of the [`Transaction`].
-///
-/// # Panics
-/// This will panic if the inputs overflow or the transaction outputs too much.
-pub fn tx_fee(tx: &Transaction) -> u64 {
-    let mut fee = 0_u64;
-
-    match &tx {
-        Transaction::V1 { prefix, .. } => {
-            for input in &prefix.inputs {
-                match input {
-                    Input::Gen(_) => return 0,
-                    Input::ToKey { amount, .. } => {
-                        fee = fee.checked_add(amount.unwrap_or(0)).unwrap();
-                    }
-                }
-            }
-
-            for output in &prefix.outputs {
-                fee.checked_sub(output.amount.unwrap_or(0)).unwrap();
-            }
-        }
-        Transaction::V2 { proofs, .. } => {
-            fee = proofs.as_ref().unwrap().base.fee;
-        }
-    };
-
-    fee
-}
-
 //---------------------------------------------------------------------------------------------------- Blocks
 /// Generate a `static LazyLock<VerifiedBlockInformation>`.
 ///
@@ -311,12 +281,12 @@ transaction_verification_data! {
 //---------------------------------------------------------------------------------------------------- TESTS
 #[cfg(test)]
 mod tests {
-    use super::*;
-
     use pretty_assertions::assert_eq;
 
     use crate::rpc::client::HttpRpcClient;
 
+    use super::*;
+
     /// Assert the defined blocks are the same compared to ones received from a local RPC call.
     #[ignore] // FIXME: doesn't work in CI, we need a real unrestricted node
     #[tokio::test]
diff --git a/test-utils/src/rpc/client.rs b/test-utils/src/rpc/client.rs
index fbe6fb9e4..cd54066a0 100644
--- a/test-utils/src/rpc/client.rs
+++ b/test-utils/src/rpc/client.rs
@@ -1,18 +1,16 @@
 //! HTTP RPC client.
 
 //---------------------------------------------------------------------------------------------------- Use
-use serde::Deserialize;
-use serde_json::json;
-use tokio::task::spawn_blocking;
-
 use monero_rpc::Rpc;
 use monero_serai::block::Block;
 use monero_simple_request_rpc::SimpleRequestRpc;
+use serde::Deserialize;
+use serde_json::json;
+use tokio::task::spawn_blocking;
 
+use cuprate_helper::tx::tx_fee;
 use cuprate_types::{VerifiedBlockInformation, VerifiedTransactionInformation};
 
-use crate::data::tx_fee;
-
 //---------------------------------------------------------------------------------------------------- Constants
 /// The default URL used for Monero RPC connections.
 pub const LOCALHOST_RPC_URL: &str = "http://127.0.0.1:18081";
@@ -184,9 +182,10 @@ impl HttpRpcClient {
 //---------------------------------------------------------------------------------------------------- TESTS
 #[cfg(test)]
 mod tests {
-    use super::*;
     use hex_literal::hex;
 
+    use super::*;
+
     /// Assert the default address is localhost.
     #[tokio::test]
     async fn localhost() {
diff --git a/types/src/blockchain.rs b/types/src/blockchain.rs
index b502c3fa8..f2b96db00 100644
--- a/types/src/blockchain.rs
+++ b/types/src/blockchain.rs
@@ -2,14 +2,16 @@
 //!
 //! Tests that assert particular requests lead to particular
 //! responses are also tested in Cuprate's blockchain database crate.
-
 //---------------------------------------------------------------------------------------------------- Import
 use std::{
     collections::{HashMap, HashSet},
     ops::Range,
 };
 
-use crate::types::{Chain, ExtendedBlockHeader, OutputOnChain, VerifiedBlockInformation};
+use crate::{
+    types::{Chain, ExtendedBlockHeader, OutputOnChain, VerifiedBlockInformation},
+    AltBlockInformation, ChainId,
+};
 
 //---------------------------------------------------------------------------------------------------- ReadRequest
 /// A read request to the blockchain database.
@@ -92,26 +94,49 @@ pub enum BlockchainReadRequest {
     CompactChainHistory,
 
     /// A request to find the first unknown block ID in a list of block IDs.
-    ////
+    ///
     /// # Invariant
     /// The [`Vec`] containing the block IDs must be sorted in chronological block
     /// order, or else the returned response is unspecified and meaningless,
     /// as this request performs a binary search.
     FindFirstUnknown(Vec<[u8; 32]>),
+
+    /// A request for all alt blocks in the chain with the given [`ChainId`].
+    AltBlocksInChain(ChainId),
 }
 
 //---------------------------------------------------------------------------------------------------- WriteRequest
 /// A write request to the blockchain database.
-///
-/// There is currently only 1 write request to the database,
-/// as such, the only valid [`BlockchainResponse`] to this request is
-/// the proper response for a [`BlockchainResponse::WriteBlockOk`].
 #[derive(Debug, Clone, PartialEq, Eq)]
 pub enum BlockchainWriteRequest {
     /// Request that a block be written to the database.
     ///
     /// Input is an already verified block.
     WriteBlock(VerifiedBlockInformation),
+
+    /// Write an alternative block to the database,
+    ///
+    /// Input is the alternative block.
+    WriteAltBlock(AltBlockInformation),
+
+    /// A request to pop some blocks from the top of the main chain
+    ///
+    /// Input is the amount of blocks to pop.
+    ///
+    /// This request flushes all alt-chains from the cache before adding the popped blocks to the
+    /// alt cache.
+    PopBlocks(usize),
+
+    /// A request to reverse the re-org process.
+    ///
+    /// The inner value is the [`ChainId`] of the old main chain.
+    ///
+    /// # Invariant
+    /// It is invalid to call this with a [`ChainId`] that was not returned from [`BlockchainWriteRequest::PopBlocks`].
+    ReverseReorg(ChainId),
+
+    /// A request to flush all alternative blocks.
+    FlushAltBlocks,
 }
 
 //---------------------------------------------------------------------------------------------------- Response
@@ -197,12 +222,24 @@ pub enum BlockchainResponse {
     /// This will be [`None`] if all blocks were known.
     FindFirstUnknown(Option<(usize, usize)>),
 
-    //------------------------------------------------------ Writes
-    /// Response to [`BlockchainWriteRequest::WriteBlock`].
+    /// The response for [`BlockchainReadRequest::AltBlocksInChain`].
     ///
-    /// This response indicates that the requested block has
-    /// successfully been written to the database without error.
-    WriteBlockOk,
+    /// Contains all the alt blocks in the alt-chain in chronological order.
+    AltBlocksInChain(Vec<AltBlockInformation>),
+
+    //------------------------------------------------------ Writes
+    /// A generic Ok response to indicate a request was successfully handled.
+    ///
+    /// currently the response for:
+    /// - [`BlockchainWriteRequest::WriteBlock`]
+    /// - [`BlockchainWriteRequest::WriteAltBlock`]
+    /// - [`BlockchainWriteRequest::ReverseReorg`]
+    /// - [`BlockchainWriteRequest::FlushAltBlocks`]
+    Ok,
+    /// The response for [`BlockchainWriteRequest::PopBlocks`].
+    ///
+    /// The inner value is the alt-chain ID for the old main chain blocks.
+    PopBlocks(ChainId),
 }
 
 //---------------------------------------------------------------------------------------------------- Tests
diff --git a/types/src/types.rs b/types/src/types.rs
index 4b6e2e126..a60ce6c60 100644
--- a/types/src/types.rs
+++ b/types/src/types.rs
@@ -1,6 +1,8 @@
 //! Various shared data types in Cuprate.
 
 //---------------------------------------------------------------------------------------------------- Import
+use std::num::NonZero;
+
 use curve25519_dalek::edwards::EdwardsPoint;
 use monero_serai::{
     block::Block,
@@ -38,8 +40,7 @@ pub struct ExtendedBlockHeader {
 //---------------------------------------------------------------------------------------------------- VerifiedTransactionInformation
 /// Verified information of a transaction.
 ///
-/// - If this is in a [`VerifiedBlockInformation`] this represents a valid transaction
-/// - If this is in an [`AltBlockInformation`] this represents a potentially valid transaction
+/// This represents a valid transaction
 #[derive(Clone, Debug, PartialEq, Eq)]
 pub struct VerifiedTransactionInformation {
     /// The transaction itself.
@@ -79,6 +80,7 @@ pub struct VerifiedBlockInformation {
     /// [`Block::hash`].
     pub block_hash: [u8; 32],
     /// The block's proof-of-work hash.
+    // TODO: make this an option.
     pub pow_hash: [u8; 32],
     /// The block's height.
     pub height: usize,
@@ -97,7 +99,7 @@ pub struct VerifiedBlockInformation {
 ///
 /// The inner value is meaningless.
 #[derive(Debug, Copy, Clone, Ord, PartialOrd, Eq, PartialEq, Hash)]
-pub struct ChainId(pub u64);
+pub struct ChainId(pub NonZero<u64>);
 
 //---------------------------------------------------------------------------------------------------- Chain
 /// An identifier for a chain.