diff --git a/blockchains/README.md b/blockchains/README.md
index 9d08f1d..3cf919a 100644
--- a/blockchains/README.md
+++ b/blockchains/README.md
@@ -54,6 +54,6 @@
 * **[neo-cypherpunk toolkit, by go outside labs](https://github.com/go-outside-labs/neo-cypherpunk-toolkit)**
 * **[bitcoin memory pool](https://www.blockchain.com/explorer/mempool/btc)**
 * **[a survey of execution client diversity, from ethstaker](https://paragraph.xyz/@ethstaker/execution-client-diversity)**
-* **[on a rusty sparse merkle tree experiment, by bt3gl](https://mirror.xyz/go-outside.eth/zX1BaGZLHAcQOKdhFnSSM0VW67_-OFCi5ZegGFPryvg)**
-* **[on uploading your soul to the interplanetary sys, by bt3gl](https://mirror.xyz/steinkirch.eth/A3iJGhXTJI5fgQoZVgIu3ovPV1P8zrxigpwngm0n4I0)**
+* **[on a rusty sparse merkle tree experiment, by mia stein](https://mirror.xyz/go-outside.eth/zX1BaGZLHAcQOKdhFnSSM0VW67_-OFCi5ZegGFPryvg)**
+* **[on uploading your soul to the interplanetary sys, by mia stein](https://mirror.xyz/go-outside.eth/A3iJGhXTJI5fgQoZVgIu3ovPV1P8zrxigpwngm0n4I0)**
 * **[ethereum transaction visualizer](https://github.com/naddison36/tx2uml)**
diff --git a/data_availability/celestia.md b/data_availability/celestia.md
index 2aa7c82..ddf1e8a 100644
--- a/data_availability/celestia.md
+++ b/data_availability/celestia.md
@@ -193,6 +193,6 @@
 * **[celestia docs](https://docs.celestia.org/learn/how-celestia-works/data-availability-layer#namespaced-merkle-trees-nmts)**
 * **[cosmos sdk](https://docs.cosmos.network/)**
 * **[tendermint consensus algorithm docs](https://docs.tendermint.com/)**
-* **[building a sparse merkle tree from scratch in rust, by bt3gl](https://mirror.xyz/go-outside.eth/zX1BaGZLHAcQOKdhFnSSM0VW67_-OFCi5ZegGFPryvg)**
+* **[building a sparse merkle tree from scratch in rust, by mia stein](https://mirror.xyz/go-outside.eth/zX1BaGZLHAcQOKdhFnSSM0VW67_-OFCi5ZegGFPryvg)**
 * **[lazyledger: a distributed da ledger with client-side smart contracts, by m. al-bassam](https://arxiv.org/abs/1905.09274)**
 * **[fraud and da proofs: maximising light client security, by m. al-bassam et al.](https://arxiv.org/abs/1809.09044)**