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docs(specs): block rules #3168

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Mar 8, 2024
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docs(specs): block rules #3168

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specs: add block rules
rootulp Mar 7, 2024
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specs: revise transaction validity rules
rootulp Mar 7, 2024
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21 changes: 17 additions & 4 deletions specs/src/specs/block_validity_rules.md
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Expand Up @@ -35,15 +35,28 @@ availability by simply downloading the entire block.
> with Dishonest Majorities"](https://arxiv.org/abs/1809.09044) and in the
> [`celestia-node`](https://github.com/celestiaorg/celestia-node) repo.

Celestia specific validity rules can be categorized into two groups:
Celestia specific validity rules can be categorized into multiple groups:

### Block Rules

1. In `Block.Data.Txs`, all `BlobTx` transactions must be ordered after non-`BlobTx` transactions.

### Transaction Validity Rules

All `BlobTx` transactions must be valid according to the [BlobTx validity rules](../../../x/blob/README.md#validity-rules).
#### App Version 1

There is no validity rule that transactions must be decodable so the following rules only apply to transactions that are decodable.

1. Decodable transactions must pass all [AnteHandler](./ante_handler.md) checks.
1. Decodable non-`BlobTx` transactions must not contain a `MsgPayForBlobs` message.
1. Decodable `BlobTx` transactions must be valid according to the [BlobTx validity rules](../../../x/blob/README.md#validity-rules).

All remaining transactions must be decodable and pass all [AnteHandler](./ante_handler.md) checks.
#### App Version 2

For a complete list of modules see [state machine modules](./state_machine_modules.md).
1. All transactions must be decodable.
1. All transactions must pass all [AnteHandler](./ante_handler.md) checks.
1. Non-`BlobTx` transactions must not contain a `MsgPayForBlobs` message.
1. `BlobTx` transactions must be valid according to the [BlobTx validity rules](../../../x/blob/README.md#validity-rules).

### Data Root Construction

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