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Update 0_beacon-chain.md

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Justin 2019-03-15 12:51:46 +00:00 committed by GitHub
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commit d8d653dd94
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1 changed files with 6 additions and 5 deletions
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specs/core/0_beacon-chain.md
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@ -2378,8 +2378,9 @@ def process_attestation(state: BeaconState, attestation: Attestation) -> None:
assert max(GENESIS_SLOT, state.slot - SLOTS_PER_EPOCH) <= attestation.data.slot assert max(GENESIS_SLOT, state.slot - SLOTS_PER_EPOCH) <= attestation.data.slot
assert attestation.data.slot <= state.slot - MIN_ATTESTATION_INCLUSION_DELAY assert attestation.data.slot <= state.slot - MIN_ATTESTATION_INCLUSION_DELAY
# Check source epoch and root match current or previous justified epoch and root # Check target epoch, source epoch, and source root
assert (slot_to_epoch(attestation.data.slot), attestation.data.source_epoch, attestation.data.source_root) in { target_epoch = slot_to_epoch(attestation.data.slot)
assert (target_epoch, attestation.data.source_epoch, attestation.data.source_root) in {
(get_current_epoch(state), state.current_justified_epoch, state.current_justified_root), (get_current_epoch(state), state.current_justified_epoch, state.current_justified_root),
(get_previous_epoch(state), state.previous_justified_epoch, state.previous_justified_root), (get_previous_epoch(state), state.previous_justified_epoch, state.previous_justified_root),
} }
@ -2390,7 +2391,7 @@ def process_attestation(state: BeaconState, attestation: Attestation) -> None:
attestation.data.previous_crosslink, # Case 1: latest crosslink matches previous crosslink attestation.data.previous_crosslink, # Case 1: latest crosslink matches previous crosslink
Crosslink( # Case 2: latest crosslink matches current crosslink Crosslink( # Case 2: latest crosslink matches current crosslink
crosslink_data_root=attestation.data.crosslink_data_root, crosslink_data_root=attestation.data.crosslink_data_root,
epoch=slot_to_epoch(attestation.data.slot), epoch=target_epoch,
), ),
} }
@ -2404,7 +2405,7 @@ def process_attestation(state: BeaconState, attestation: Attestation) -> None:
pubkey=bls_aggregate_pubkeys([state.validator_registry[i].pubkey for i in participants]), pubkey=bls_aggregate_pubkeys([state.validator_registry[i].pubkey for i in participants]),
message_hash=hash_tree_root(AttestationDataAndCustodyBit(data=attestation.data, custody_bit=0b0)), message_hash=hash_tree_root(AttestationDataAndCustodyBit(data=attestation.data, custody_bit=0b0)),
signature=attestation.aggregate_signature, signature=attestation.aggregate_signature,
domain=get_domain(state.fork, slot_to_epoch(attestation.data.slot), DOMAIN_ATTESTATION), domain=get_domain(state.fork, target_epoch, DOMAIN_ATTESTATION),
) )
# Cache pending attestation # Cache pending attestation
@ -2414,7 +2415,7 @@ def process_attestation(state: BeaconState, attestation: Attestation) -> None:
custody_bitfield=attestation.custody_bitfield, custody_bitfield=attestation.custody_bitfield,
inclusion_slot=state.slot inclusion_slot=state.slot
) )
if slot_to_epoch(attestation.data.slot) == get_current_epoch(state): if target_epoch == get_current_epoch(state):
state.current_epoch_attestations.append(pending_attestation) state.current_epoch_attestations.append(pending_attestation)
else: else:
state.previous_epoch_attestations.append(pending_attestation) state.previous_epoch_attestations.append(pending_attestation)