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Add gas_limit to the execution payload header

This commit is contained in:
Potuz 2024-07-01 13:11:43 -03:00
parent 25a0fdc991
commit ed7f17e0bf
2 changed files with 13 additions and 8 deletions
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6
specs/_features/eipxxxx/beacon-chain.md
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@ -192,13 +192,14 @@ class BeaconBlockBody(Container):
#### `ExecutionPayloadHeader`
**Note:** The `ExecutionPayloadHeader` is modified to only contain the block hash of the committed `ExecutionPayload` in addition to the builder's payment information and KZG commitments root to verify the inclusion proofs.
**Note:** The `ExecutionPayloadHeader` is modified to only contain the block hash of the committed `ExecutionPayload` in addition to the builder's payment information, gas limit and KZG commitments root to verify the inclusion proofs.
```python
class ExecutionPayloadHeader(Container):
parent_block_hash: Hash32
parent_block_root: Root
block_hash: Hash32
gas_limit: uint64
builder_index: ValidatorIndex
slot: Slot
value: Gwei
@ -595,6 +596,9 @@ def process_execution_payload(state: BeaconState, signed_envelope: SignedExecuti
# Verify the withdrawals root
assert hash_tree_root(payload.withdrawals) == state.last_withdrawals_root
# Verify the gas_limit
assert commited_header.gas_limit == payload.gas_limit
assert committed_header.block_hash == payload.block_hash
# Verify consistency of the parent hash with respect to the previous execution payload
assert payload.parent_hash == state.latest_block_hash

15
specs/_features/eipxxxx/builder.md
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@ -28,14 +28,15 @@ Thus, builders tasks are divided in two, submitting bids, and submitting payload
Builders can broadcast a payload bid for the current or the next slot's proposer to include. They produce a `SignedExecutionPayloadHeader` as follows.
1. Set `header.parent_block_hash` to the current head of the execution chain (this can be obtained from the beacon state as `state.last_block_hash`).
1. Set `header.parent_block_hash` to the current head of the execution chain (this can be obtained from the beacon state as `state.last_block_hash`).
2. Set `header.parent_block_root` to be the head of the consensus chain (this can be obtained from the beacon state as `hash_tree_root(state.latest_block_header)`. The `parent_block_root` and `parent_block_hash` must be compatible, in the sense that they both should come from the same `state` by the method described in this and the previous point.
3. Construct an execution payload. This can be performed with an external execution engine with a call to `engine_getPayloadV4`.
4. Set `header.block_hash` to be the block hash of the constructed payload, that is `payload.block_hash`
5. Set `header.builder_index` to be the validator index of the builder performing these actions.
6. Set `header.slot` to be the slot for which this bid is aimed. This slot **MUST** be either the current slot or the next slot.
7. Set `header.value` to be the value that the builder will pay the proposer if the bid is accepted. The builder **MUST** have balance enough to fulfill this bid.
8. Set `header.kzg_commitments_root` to be the `hash_tree_root` of the `blobsbundle.commitments` field returned by `engine_getPayloadV4`.
3. Construct an execution payload. This can be performed with an external execution engine with a call to `engine_getPayloadV4`.
4. Set `header.block_hash` to be the block hash of the constructed payload, that is `payload.block_hash`.
5. Set `header.gas_limit` to be the gas limit of the constructed payload, that is `payload.gas_limit`.
6. Set `header.builder_index` to be the validator index of the builder performing these actions.
7. Set `header.slot` to be the slot for which this bid is aimed. This slot **MUST** be either the current slot or the next slot.
8. Set `header.value` to be the value that the builder will pay the proposer if the bid is accepted. The builder **MUST** have balance enough to fulfill this bid.
9. Set `header.kzg_commitments_root` to be the `hash_tree_root` of the `blobsbundle.commitments` field returned by `engine_getPayloadV4`.
After building the `header`, the builder obtains a `signature` of the header by using