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Danny Ryan 2021-05-10 10:30:47 -06:00
parent 95e2aa6471
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1 changed files with 6 additions and 3 deletions
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specs/altair/beacon-chain.md
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@ -362,19 +362,22 @@ def get_flag_index_deltas(state: BeaconState, flag_index: int) -> Tuple[Sequence
previous_epoch = get_previous_epoch(state)
unslashed_participating_indices = get_unslashed_participating_indices(state, flag_index, previous_epoch)
weight = PARTICIPATION_FLAG_WEIGHTS[flag_index]
unslashed_participating_increments = get_total_balance(state, unslashed_participating_indices) // EFFECTIVE_BALANCE_INCREMENT
unslashed_participating_balance = get_total_balance(state, unslashed_participating_indices)
unslashed_participating_increments = unslashed_participating_balance // EFFECTIVE_BALANCE_INCREMENT
active_increments = get_total_active_balance(state) // EFFECTIVE_BALANCE_INCREMENT
in_inactivity_leak = is_in_inactivity_leak(state)
for index in get_eligible_validator_indices(state):
base_reward = get_base_reward(state, index)
if index in unslashed_participating_indices:
index_participated = index in unslashed_participating_indices
if index_participated:
if not in_inactivity_leak:
reward_numerator = base_reward * weight * unslashed_participating_increments
rewards[index] += Gwei(reward_numerator // (active_increments * WEIGHT_DENOMINATOR))
elif not (in_inactivity_leak and flag_index == TIMELY_HEAD_FLAG_INDEX):
penalties[index] += Gwei(base_reward * weight // WEIGHT_DENOMINATOR)
# Quadratic inactivity leak
if flag_index == TIMELY_TARGET_FLAG_INDEX and in_inactivity_leak and index not in unslashed_participating_indices:
if flag_index == TIMELY_TARGET_FLAG_INDEX and in_inactivity_leak and index_participated:
penalty_numerator = state.validators[index].effective_balance * state.inactivity_scores[index]
penalty_denominator = INACTIVITY_SCORE_BIAS * INACTIVITY_PENALTY_QUOTIENT_ALTAIR
penalties[index] += Gwei(penalty_numerator // penalty_denominator)