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Move blob_sidecar_{subnet_id} to Blob subnets section
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hwwhww committed Dec 1, 2023
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41 changes: 21 additions & 20 deletions specs/deneb/p2p-interface.md
Original file line number Diff line number Diff line change
Expand Up @@ -23,8 +23,9 @@ The specification of these changes continues in the same format as the network s
- [Topics and messages](#topics-and-messages)
- [Global topics](#global-topics)
- [`beacon_block`](#beacon_block)
- [`blob_sidecar_{subnet_id}`](#blob_sidecar_subnet_id)
- [`beacon_aggregate_and_proof`](#beacon_aggregate_and_proof)
- [Blob subnets](#blob-subnets)
- [`blob_sidecar_{subnet_id}`](#blob_sidecar_subnet_id)
- [Attestation subnets](#attestation-subnets)
- [`beacon_attestation_{subnet_id}`](#beacon_attestation_subnet_id)
- [Transitioning the gossip](#transitioning-the-gossip)
Expand Down Expand Up @@ -133,8 +134,6 @@ The new topics along with the type of the `data` field of a gossipsub message ar

##### Global topics

Deneb introduces new global topics for blob sidecars.

###### `beacon_block`

The *type* of the payload of this topic changes to the (modified) `SignedBeaconBlock` found in Deneb.
Expand All @@ -146,6 +145,25 @@ New validation:
- _[REJECT]_ The length of KZG commitments is less than or equal to the limitation defined in Consensus Layer --
i.e. validate that `len(body.signed_beacon_block.message.blob_kzg_commitments) <= MAX_BLOBS_PER_BLOCK`

###### `beacon_aggregate_and_proof`

*[Modified in Deneb:EIP7045]*

The following validation is removed:
* _[IGNORE]_ `aggregate.data.slot` is within the last `ATTESTATION_PROPAGATION_SLOT_RANGE` slots (with a `MAXIMUM_GOSSIP_CLOCK_DISPARITY` allowance) --
i.e. `aggregate.data.slot + ATTESTATION_PROPAGATION_SLOT_RANGE >= current_slot >= aggregate.data.slot`
(a client MAY queue future aggregates for processing at the appropriate slot).

The following validations are added in its place:
* _[IGNORE]_ `aggregate.data.slot` is equal to or earlier than the `current_slot` (with a `MAXIMUM_GOSSIP_CLOCK_DISPARITY` allowance) --
i.e. `aggregate.data.slot <= current_slot`
(a client MAY queue future aggregates for processing at the appropriate slot).
* _[IGNORE]_ the epoch of `aggregate.data.slot` is either the current or previous epoch
(with a `MAXIMUM_GOSSIP_CLOCK_DISPARITY` allowance) --
i.e. `compute_epoch_at_slot(aggregate.data.slot) in (get_previous_epoch(state), get_current_epoch(state))`

##### Blob subnets

###### `blob_sidecar_{subnet_id}`

*[New in Deneb:EIP4844]*
Expand All @@ -169,23 +187,6 @@ The following validations MUST pass before forwarding the `blob_sidecar` on the
- _[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_header.parent_root`/`block_header.slot`).
If the `proposer_index` cannot immediately be verified against the expected shuffling, the sidecar MAY be queued for later processing while proposers for the block's branch are calculated -- in such a case _do not_ `REJECT`, instead `IGNORE` this message.

###### `beacon_aggregate_and_proof`

*[Modified in Deneb:EIP7045]*

The following validation is removed:
* _[IGNORE]_ `aggregate.data.slot` is within the last `ATTESTATION_PROPAGATION_SLOT_RANGE` slots (with a `MAXIMUM_GOSSIP_CLOCK_DISPARITY` allowance) --
i.e. `aggregate.data.slot + ATTESTATION_PROPAGATION_SLOT_RANGE >= current_slot >= aggregate.data.slot`
(a client MAY queue future aggregates for processing at the appropriate slot).

The following validations are added in its place:
* _[IGNORE]_ `aggregate.data.slot` is equal to or earlier than the `current_slot` (with a `MAXIMUM_GOSSIP_CLOCK_DISPARITY` allowance) --
i.e. `aggregate.data.slot <= current_slot`
(a client MAY queue future aggregates for processing at the appropriate slot).
* _[IGNORE]_ the epoch of `aggregate.data.slot` is either the current or previous epoch
(with a `MAXIMUM_GOSSIP_CLOCK_DISPARITY` allowance) --
i.e. `compute_epoch_at_slot(aggregate.data.slot) in (get_previous_epoch(state), get_current_epoch(state))`

##### Attestation subnets

###### `beacon_attestation_{subnet_id}`
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