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Merge pull request #3529 from nisdas/patch-3

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Reject Blobs Which Reference Already Finalized Parent Blocks
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danny 2023-10-30 08:52:04 -06:00 committed by GitHub
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specs/deneb/p2p-interface.md
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@ -155,6 +155,7 @@ The following validations MUST pass before forwarding the `signed_blob_sidecar`
- _[IGNORE]_ The sidecar's block's parent (defined by `sidecar.block_parent_root`) has been seen (via both gossip and non-gossip sources) (a client MAY queue sidecars for processing once the parent block is retrieved).
- _[REJECT]_ The sidecar's block's parent (defined by `sidecar.block_parent_root`) passes validation.
- _[REJECT]_ The sidecar is from a higher slot than the sidecar's block's parent (defined by `sidecar.block_parent_root`).
- _[REJECT]_ The current finalized_checkpoint is an ancestor of the sidecar's block's parent -- i.e. `get_checkpoint_block(store, sidecar.block_parent_root, store.finalized_checkpoint.epoch) == store.finalized_checkpoint.root`.
- _[REJECT]_ The proposer signature, `signed_blob_sidecar.signature`, is valid as verified by `verify_blob_sidecar_signature`.
- _[IGNORE]_ The sidecar is the only sidecar with valid signature received for the tuple `(sidecar.block_root, sidecar.index)`.
- _[REJECT]_ The sidecar is proposed by the expected `proposer_index` for the block's slot in the context of the current shuffling (defined by `block_parent_root`/`slot`).