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eth2.0-specs
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Danny Ryan 2019-03-04 09:17:43 -07:00
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7
specs/core/0_beacon-chain.md
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@ -1658,6 +1658,7 @@ def process_block_header(state: BeaconState, block: BeaconBlock) -> None:
```python ```python
def process_randao(state: BeaconState, block: BeaconBlock) -> None: def process_randao(state: BeaconState, block: BeaconBlock) -> None:
proposer = state.validator_registry[get_beacon_proposer_index(state, state.slot)]
# Verify that the provided randao value is valid # Verify that the provided randao value is valid
assert bls_verify( assert bls_verify(
pubkey=proposer.pubkey, pubkey=proposer.pubkey,
@ -1968,7 +1969,7 @@ def get_previous_total_balance(state: BeaconState) -> Gwei:
```python ```python
def get_attesting_indices(state: BeaconState, attestations: List[PendingAttestation]) -> List[ValidatorIndex]: def get_attesting_indices(state: BeaconState, attestations: List[PendingAttestation]) -> List[ValidatorIndex]:
output = set({}) output = set()
for a in attestations: for a in attestations:
output = output.union([get_attestation_participants(state, a.data, a.aggregation_bitfield)]) output = output.union([get_attestation_participants(state, a.data, a.aggregation_bitfield)])
return sorted(list(output)) return sorted(list(output))
@ -2087,6 +2088,9 @@ Run the following function:
```python ```python
def process_crosslinks(state: BeaconState) -> None: def process_crosslinks(state: BeaconState) -> None:
current_epoch = get_current_epoch(state)
previous_epoch = current_epoch - 1
next_epoch = current_epoch + 1
for slot in range(get_epoch_start_slot(previous_epoch), get_epoch_start_slot(next_epoch)): for slot in range(get_epoch_start_slot(previous_epoch), get_epoch_start_slot(next_epoch)):
for crosslink_committee, shard in get_crosslink_committees_at_slot(state, slot): for crosslink_committee, shard in get_crosslink_committees_at_slot(state, slot):
winning_root, participants = get_winning_root_and_participants(state, shard) winning_root, participants = get_winning_root_and_participants(state, shard)
@ -2124,6 +2128,7 @@ def get_base_reward(state: BeaconState, index: ValidatorIndex) -> Gwei:
```python ```python
def get_inactivity_penalty(state: BeaconState, index: ValidatorIndex) -> Gwei: def get_inactivity_penalty(state: BeaconState, index: ValidatorIndex) -> Gwei:
epochs_since_finality = get_current_epoch(state) + 1 - state.finalized_epoch
return ( return (
get_base_reward(state, index) + get_base_reward(state, index) +
get_effective_balance(state, index) * epochs_since_finality // INACTIVITY_PENALTY_QUOTIENT // 2 get_effective_balance(state, index) * epochs_since_finality // INACTIVITY_PENALTY_QUOTIENT // 2