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Merge pull request #1683 from ethereum/unnecessary-clock-disp 

[direct to v011x] Remove unnecessary clock disparity check
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Diederik Loerakker 2020-03-24 15:42:36 +01:00 committed by GitHub
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specs/phase0/p2p-interface.md
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@ -259,7 +259,7 @@ There are two primary global topics used to propagate beacon blocks and aggregat
- `beacon_block` - This topic is used solely for propagating new signed beacon blocks to all nodes on the networks. Signed blocks are sent in their entirety. The following validations MUST pass before forwarding the `signed_beacon_block` on the network
- The block is not from a future slot (with a `MAXIMUM_GOSSIP_CLOCK_DISPARITY` allowance) -- i.e. validate that `signed_beacon_block.message.slot <= current_slot` (a client MAY queue future blocks for processing at the appropriate slot).
- The block is from a slot greater than the latest finalized slot (with a `MAXIMUM_GOSSIP_CLOCK_DISPARITY` allowance) -- i.e. validate that `signed_beacon_block.message.slot > compute_start_slot_at_epoch(state.finalized_checkpoint.epoch)` (a client MAY choose to validate and store such blocks for additional purposes -- e.g. slashing detection, archive nodes, etc).
- The block is from a slot greater than the latest finalized slot -- i.e. validate that `signed_beacon_block.message.slot > compute_start_slot_at_epoch(state.finalized_checkpoint.epoch)` (a client MAY choose to validate and store such blocks for additional purposes -- e.g. slashing detection, archive nodes, etc).
- The block is proposed by the expected `proposer_index` for the block's slot in the context of the current shuffling (defined by `parent_root`/`slot`). If the `proposer_index` cannot immediately be verified against the expected shuffling, the block MAY be queued for later processing while proposers for the block's branch are calculated.
- The block is the first block with valid signature received for the proposer for the slot, `signed_beacon_block.message.slot`.
- The proposer signature, `signed_beacon_block.signature`, is valid.