eth2.0-specs/configs/minimal/phase1.yaml

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# Minimal preset - phase 1
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# phase1-fork
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# ---------------------------------------------------------------
# [customized] for testnet distinction
PHASE_1_FORK_VERSION: 0x01000001
# [STUB]
PHASE_1_FORK_SLOT: 0
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# [customized] reduced for testing
INITIAL_ACTIVE_SHARDS: 2
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# beacon-chain
# ---------------------------------------------------------------
# Misc
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# [customized] reduced for testing
MAX_SHARDS: 8
# 2**7 (= 128)
LIGHT_CLIENT_COMMITTEE_SIZE: 128
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# 2**3 (= 8)
GASPRICE_ADJUSTMENT_COEFFICIENT: 8
# Shard block configs
# 2**20 (= 1048,576) bytes
MAX_SHARD_BLOCK_SIZE: 1048576
# 2**18 (= 262,144) bytes
TARGET_SHARD_BLOCK_SIZE: 262144
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# Note: MAX_SHARD_BLOCKS_PER_ATTESTATION is derived from the list length.
SHARD_BLOCK_OFFSETS: [1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233]
# len(SHARD_BLOCK_OFFSETS)
MAX_SHARD_BLOCKS_PER_ATTESTATION: 12
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# 2**12 (= 4,096)
BYTES_PER_CUSTODY_CHUNK: 4096
# ceillog2(MAX_SHARD_BLOCK_SIZE // BYTES_PER_CUSTODY_CHUNK)
CUSTODY_RESPONSE_DEPTH: 8
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# Gwei values
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# 2**14 (= 16,384) Gwei
MAX_GASPRICE: 16384
# 2**3 (= 8) Gwei
MIN_GASPRICE: 8
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# Time parameters
# 2**3 (= 8) | online epochs
ONLINE_PERIOD: 8
# 2**8 (= 256) | epochs
LIGHT_CLIENT_COMMITTEE_PERIOD: 256
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# Max operations per block
# 2**20 (= 1,048,576)
MAX_CUSTODY_CHUNK_CHALLENGE_RECORDS: 1048576
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# Domain types
DOMAIN_SHARD_PROPOSAL: 0x80000000
DOMAIN_SHARD_COMMITTEE: 0x81000000
DOMAIN_LIGHT_CLIENT: 0x82000000
# custody-game spec
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DOMAIN_CUSTODY_BIT_SLASHING: 0x83000000
DOMAIN_LIGHT_SELECTION_PROOF: 0x84000000
DOMAIN_LIGHT_AGGREGATE_AND_PROOF: 0x85000000
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# custody-game
# ---------------------------------------------------------------
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# Time parameters
# 2**1 (= 2) epochs
RANDAO_PENALTY_EPOCHS: 2
# [customized] quicker for testing
EARLY_DERIVED_SECRET_PENALTY_MAX_FUTURE_EPOCHS: 64
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# [customized] quicker for testing
EPOCHS_PER_CUSTODY_PERIOD: 32
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# [customized] quicker for testing
CUSTODY_PERIOD_TO_RANDAO_PADDING: 8
# [customize for faster testing]
MAX_CHUNK_CHALLENGE_DELAY: 64
# Misc parameters
# 2**256 - 189
CUSTODY_PRIME: 115792089237316195423570985008687907853269984665640564039457584007913129639747
# 3
CUSTODY_SECRETS: 3
# 2**5 (= 32) bytes
BYTES_PER_CUSTODY_ATOM: 32
# 1/4 chance of custody bit 1 [customized for faster testing]
CUSTODY_PROBABILITY_EXPONENT: 2
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# Max operations
# 2**8 (= 256)
MAX_CUSTODY_KEY_REVEALS: 256
# 2**0 (= 1)
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MAX_EARLY_DERIVED_SECRET_REVEALS: 1
# [customized]
MAX_CUSTODY_CHUNK_CHALLENGES: 2
# [customized]
MAX_CUSTODY_CHUNK_CHALLENGE_RESP: 8
# 2**0 (= 1)
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MAX_CUSTODY_SLASHINGS: 1
# Reward and penalty quotients
EARLY_DERIVED_SECRET_REVEAL_SLOT_REWARD_MULTIPLE: 2
# 2**8 (= 256)
MINOR_REWARD_QUOTIENT: 256