def config(shard_count, target_committee_size, ejection_balance,
max_balance_churn_quotient, beacon_chain_shard_number,
max_indices_per_slashable_vote, latest_block_roots_length,
latest_index_roots_length, latest_randao_mixes_length,
latest_penalized_exit_length, deposit_contract_address,
deposit_contract_tree_depth, min_deposit_amount, max_deposit_amount,
genesis_fork_version, genesis_slot, genesis_epoch,
genesis_start_shard, bls_withdrawal_prefix_byte, slot_duration,
min_attestation_inclusion_delay, epoch_length, seed_lookahead,
entry_exit_delay, eth1_data_voting_period,
min_validator_withdrawal_time, base_reward_quotient,
whistleblower_reward_quotient, includer_reward_quotient,
inactivity_penalty_quotient, max_proposer_slashings,
max_attester_slashings, max_attestations, max_deposits, max_exits):
return BeaconConfig(
SHARD_COUNT=shard_count,
TARGET_COMMITTEE_SIZE=target_committee_size,
EJECTION_BALANCE=ejection_balance,
MAX_BALANCE_CHURN_QUOTIENT=max_balance_churn_quotient,
BEACON_CHAIN_SHARD_NUMBER=beacon_chain_shard_number,
MAX_INDICES_PER_SLASHABLE_VOTE=max_indices_per_slashable_vote,
LATEST_BLOCK_ROOTS_LENGTH=latest_block_roots_length,
LATEST_INDEX_ROOTS_LENGTH=latest_index_roots_length,
LATEST_RANDAO_MIXES_LENGTH=latest_randao_mixes_length,
LATEST_PENALIZED_EXIT_LENGTH=latest_penalized_exit_length,
DEPOSIT_CONTRACT_ADDRESS=deposit_contract_address,
DEPOSIT_CONTRACT_TREE_DEPTH=deposit_contract_tree_depth,
MIN_DEPOSIT_AMOUNT=min_deposit_amount,
MAX_DEPOSIT_AMOUNT=max_deposit_amount,
GENESIS_FORK_VERSION=genesis_fork_version,
GENESIS_SLOT=genesis_slot,
GENESIS_EPOCH=genesis_epoch,
GENESIS_START_SHARD=genesis_start_shard,
BLS_WITHDRAWAL_PREFIX_BYTE=bls_withdrawal_prefix_byte,
SLOT_DURATION=slot_duration,
MIN_ATTESTATION_INCLUSION_DELAY=min_attestation_inclusion_delay,
EPOCH_LENGTH=epoch_length,
SEED_LOOKAHEAD=seed_lookahead,
ENTRY_EXIT_DELAY=entry_exit_delay,
ETH1_DATA_VOTING_PERIOD=eth1_data_voting_period,
MIN_VALIDATOR_WITHDRAWAL_TIME=min_validator_withdrawal_time,
BASE_REWARD_QUOTIENT=base_reward_quotient,
WHISTLEBLOWER_REWARD_QUOTIENT=whistleblower_reward_quotient,
INCLUDER_REWARD_QUOTIENT=includer_reward_quotient,
INACTIVITY_PENALTY_QUOTIENT=inactivity_penalty_quotient,
MAX_PROPOSER_SLASHINGS=max_proposer_slashings,
MAX_ATTESTER_SLASHINGS=max_attester_slashings,
MAX_ATTESTATIONS=max_attestations,
MAX_DEPOSITS=max_deposits,
MAX_EXITS=max_exits,
)
SERENITY_CONFIG = BeaconConfig(
# Misc
SHARD_COUNT=2**10, # (= 1,024) shards
TARGET_COMMITTEE_SIZE=2**7, # (= 128) validators
EJECTION_BALANCE=Ether(2**4), # (= 16) ETH
MAX_BALANCE_CHURN_QUOTIENT=2**5, # (= 32)
BEACON_CHAIN_SHARD_NUMBER=ShardNumber(2**64 - 1),
MAX_CASPER_VOTES=2**10, # (= 1,024) votes
LATEST_BLOCK_ROOTS_LENGTH=2**13, # (= 8,192) block roots
LATEST_RANDAO_MIXES_LENGTH=2**13, # (= 8,192) randao mixes
LATEST_PENALIZED_EXIT_LENGTH=2**13, # (= 8,192) randao mixes
# Deposit contract
DEPOSIT_CONTRACT_ADDRESS=ZERO_ADDRESS, # TBD
DEPOSIT_CONTRACT_TREE_DEPTH=2**5, # (= 32)
MIN_DEPOSIT=Ether(2**0), # (= 1) ETH
MAX_DEPOSIT=Ether(2**5), # (= 32) ETH
# Initial values
GENESIS_FORK_VERSION=0,
GENESIS_SLOT=SlotNumber(0),
GENESIS_START_SHARD=ShardNumber(0),
BLS_WITHDRAWAL_PREFIX_BYTE=b'\x00',
# Time parameters
SLOT_DURATION=Second(6), # seconds
MIN_ATTESTATION_INCLUSION_DELAY=2**2, # (= 4) slots
EPOCH_LENGTH=2**6, # (= 64) slots
SEED_LOOKAHEAD=2**6, # (= 64) slots
ENTRY_EXIT_DELAY=2**8, # (= 256) slots
ETH1_DATA_VOTING_PERIOD=2**10, # (= 1,024) slots
MIN_VALIDATOR_WITHDRAWAL_TIME=2**14, # (= 16,384) slots
# Reward and penalty quotients
BASE_REWARD_QUOTIENT=2**10, # (= 1,024)
WHISTLEBLOWER_REWARD_QUOTIENT=2**9, # (= 512)
INCLUDER_REWARD_QUOTIENT=2**3, # (= 8)
INACTIVITY_PENALTY_QUOTIENT=2**24, # (= 16,777,216)
# Max operations per block
MAX_PROPOSER_SLASHINGS=2**4, # (= 16)
MAX_CASPER_SLASHINGS=2**4, # (= 16)
MAX_ATTESTATIONS=2**7, # (= 128)
MAX_DEPOSITS=2**4, # (= 16)
MAX_EXITS=2**4, # (= 16)
)