Constants update (v0.7.1) (#725)

* Change mainnet constants

* Change minimal constants in config.toml

config/config.toml

@@ -40,45 +40,129 @@ DepositSimulation = ["secp", "bls", "deposit_data", "events"]
 
 # Modify constants in Constants.java
 [constants]
+# Minimal preset
+
+
+# Misc
+# ---------------------------------------------------------------
+
+# [customized] Just 8 shards for testing purposes
 SHARD_COUNT = 8
+# [customized] unsecure, but fast
 TARGET_COMMITTEE_SIZE = 4
-MAX_BALANCE_CHURN_QUOTIENT = 32
-MAX_INDICES_PER_SLASHABLE_VOTE = 4096
-MAX_EXIT_DEQUEUES_PER_EPOCH = 4
-SHUFFLE_ROUND_COUNT = 90
+# 2**12 (= 4,096)
+MAX_INDICES_PER_ATTESTATION = 4096
+# 2**2 (= 4)
+MIN_PER_EPOCH_CHURN_LIMIT = 4
+# 2**16 (= 65,536)
+CHURN_LIMIT_QUOTIENT = 65536
+# Normalizes base rewards
+BASE_REWARDS_PER_EPOCH = 5
+# [customized] Faster, but unsecure.
+SHUFFLE_ROUND_COUNT = 10
+
+
+# Deposit contract
+# ---------------------------------------------------------------
+# **TBD**
+DEPOSIT_CONTRACT_ADDRESS = '0x1234567890123456789012345678901234567890'
+# 2**5 (= 32)
 DEPOSIT_CONTRACT_TREE_DEPTH = 32
+
+
+# Gwei values
+# ---------------------------------------------------------------
+# 2**0 * 10**9 (= 1,000,000,000) Gwei
 MIN_DEPOSIT_AMOUNT = 1000000000
-MAX_DEPOSIT_AMOUNT = 32000000000
-FORK_CHOICE_BALANCE_INCREMENT = 1000000000
+# 2**5 * 10**9 (= 32,000,000,000) Gwei
+MAX_EFFECTIVE_BALANCE = 32000000000
+# 2**4 * 10**9 (= 16,000,000,000) Gwei
 EJECTION_BALANCE = 16000000000
-GENESIS_FORK_VERSION = 0
-GENESIS_SLOT = 4294967296
-GENESIS_EPOCH = 536870912
-GENESIS_START_SHARD = 0
+# 2**0 * 10**9 (= 1,000,000,000) Gwei
+EFFECTIVE_BALANCE_INCREMENT = 1000000000
+
+
+# Initial values
+# ---------------------------------------------------------------
+GENESIS_FORK_VERSION = '0x00000000'
+# 0, GENESIS_EPOCH is derived from this constant
+GENESIS_SLOT = 0
+# 2**64 - 1
+FAR_FUTURE_EPOCH = 18446744073709551615
+BLS_WITHDRAWAL_PREFIX = 0
+
+
+# Time parameters
+# ---------------------------------------------------------------
+# 6 seconds 6 seconds
 SECONDS_PER_SLOT = 6
-MIN_ATTESTATION_INCLUSION_DELAY = 1
+# [customized] 2 slots
+MIN_ATTESTATION_INCLUSION_DELAY = 2
+# [customized] fast epochs
 SLOTS_PER_EPOCH = 8
+# 2**0 (= 1) epochs
 MIN_SEED_LOOKAHEAD = 1
+# 2**2 (= 4) epochs
 ACTIVATION_EXIT_DELAY = 4
-EPOCHS_PER_ETH1_VOTING_PERIOD = 16
+# [customized] higher frequency new deposits from eth1 for testing
+SLOTS_PER_ETH1_VOTING_PERIOD = 16
+# [customized] smaller state
 SLOTS_PER_HISTORICAL_ROOT = 64
+# 2**8 (= 256) epochs
 MIN_VALIDATOR_WITHDRAWABILITY_DELAY = 256
+# 2**11 (= 2,048) epochs
 PERSISTENT_COMMITTEE_PERIOD = 2048
+# 2**6 (= 64) epochs
+MAX_EPOCHS_PER_CROSSLINK = 64
+# 2**2 (= 4) epochs
+MIN_EPOCHS_TO_INACTIVITY_PENALTY = 4
+# [customized] 2**12 (= 4,096) epochs
+EARLY_DERIVED_SECRET_PENALTY_MAX_FUTURE_EPOCHS = 4096
+
+
+# State list lengths
+# ---------------------------------------------------------------
+# [customized] smaller state
 LATEST_RANDAO_MIXES_LENGTH = 64
+# [customized] smaller state
 LATEST_ACTIVE_INDEX_ROOTS_LENGTH = 64
+# [customized] smaller state
 LATEST_SLASHED_EXIT_LENGTH = 64
-BASE_REWARD_QUOTIENT = 32
-WHISTLEBLOWER_REWARD_QUOTIENT = 512
-ATTESTATION_INCLUSION_REWARD_QUOTIENT = 8
-INACTIVITY_PENALTY_QUOTIENT = 16777216
-MIN_PENALTY_QUOTIENT = 32
+
+
+# Reward and penalty quotients
+# ---------------------------------------------------------------
+# 2**5 (= 32)
+BASE_REWARD_FACTOR = 32
+# 2**9 (= 512)
+WHISTLEBLOWING_REWARD_QUOTIENT = 512
+# 2**3 (= 8)
+PROPOSER_REWARD_QUOTIENT = 8
+# 2**25 (= 33,554,432)
+INACTIVITY_PENALTY_QUOTIENT = 33554432
+# 2**5 (= 32)
+MIN_SLASHING_PENALTY_QUOTIENT = 32
+
+
+# Max operations per block
+# ---------------------------------------------------------------
+# 2**4 (= 16)
 MAX_PROPOSER_SLASHINGS = 16
+# 2**0 (= 1)
 MAX_ATTESTER_SLASHINGS = 1
+# 2**7 (= 128)
 MAX_ATTESTATIONS = 128
+# 2**4 (= 16)
 MAX_DEPOSITS = 16
+# 2**4 (= 16)
 MAX_VOLUNTARY_EXITS = 16
-MAX_TRANSFERS = 16
-DOMAIN_BEACON_BLOCK = 0
+# Originally 2**4 (= 16), disabled for now.
+MAX_TRANSFERS = 0
+
+
+# Signature domains
+# ---------------------------------------------------------------
+DOMAIN_BEACON_PROPOSER = 0
 DOMAIN_RANDAO = 1
 DOMAIN_ATTESTATION = 2
 DOMAIN_DEPOSIT = 3

ethereum/datastructures/src/main/java/tech/pegasys/artemis/datastructures/Constants.java

@@ -27,53 +27,53 @@ public class Constants {
  // Misc
  public static int SHARD_COUNT = 1024; // 2^10 shards
  public static int TARGET_COMMITTEE_SIZE = 128; // 2^7 validators
- public static int MAX_BALANCE_CHURN_QUOTIENT = 32; // 2^5
- public static int MAX_INDICES_PER_SLASHABLE_VOTE = 4096; // 2^12 votes
- public static int MAX_EXIT_DEQUEUES_PER_EPOCH = 4; // 2^2 withdrawals
+ public static int MAX_INDICES_PER_ATTESTATION = 4096; // 2^5
+ public static int MIN_PER_EPOCH_CHURN_LIMIT = 4; // 2^2 withdrawals
+ public static int CHURN_LIMIT_QUOTIENT = 65536; // 2^2 withdrawals
+ public static int BASE_REWARD_PER_EPOCH = 5; // 2^2 withdrawals
  public static int SHUFFLE_ROUND_COUNT = 90;
 
  // Deposit contract
- public static String DEPOSIT_CONTRACT_ADDRESS = "0x0"; // This is TBD in the spec.
  public static int DEPOSIT_CONTRACT_TREE_DEPTH = 32; // 2^5
 
  // Gwei values
  public static long MIN_DEPOSIT_AMOUNT = 1000000000L; // 2^0 * 1E9 Gwei
- public static long MAX_DEPOSIT_AMOUNT = 32000000000L; // 2^5 * 1E9 Gwei
- public static long FORK_CHOICE_BALANCE_INCREMENT = 1000000000L; // 2^0 * 1E9 Gwei
+ public static long MAX_EFFECTIVE_BALANCE = 32000000000L; // 2^5 * 1E9 Gwei
  public static long EJECTION_BALANCE = 16000000000L; // 2^4 * 1E9 Gwei
+ public static long EFFECTIVE_BALANCE_INCREMENT = 1000000000L; // 2^0 * 1E9 Gwei
+
+ // Initial values
+ public static long GENESIS_SLOT = 0; // 2^32
+ public static long GENESIS_EPOCH = 0;
+ public static UnsignedLong FAR_FUTURE_EPOCH = UnsignedLong.MAX_VALUE;
+ public static Bytes32 ZERO_HASH = Bytes32.ZERO; // TODO confirm if equals to b'\x00' * 32
+ public static int BLS_WITHDRAWAL_PREFIX_BYTE = 0;
 
  // Time parameters
- public static int SECONDS_PER_SLOT = 6; // 6 seconds
  public static int MIN_ATTESTATION_INCLUSION_DELAY = 4; // 2^2 slots
  public static int SLOTS_PER_EPOCH = 64; // 2^6 slots
  public static int MIN_SEED_LOOKAHEAD = 1; // 2^0 epochs (6.4 minutes)
  public static int ACTIVATION_EXIT_DELAY = 4; // 2^2 epochs (25.6 minutes)
- public static int EPOCHS_PER_ETH1_VOTING_PERIOD = 16; // 2^4 epochs (~1.7 hours)
+ public static int SLOTS_PER_ETH1_VOTING_PERIOD = 1024; // 2^4 epochs (~1.7 hours)
  public static int SLOTS_PER_HISTORICAL_ROOT = 8192; // 2^13 slots (~13 hours)
  public static int MIN_VALIDATOR_WITHDRAWABILITY_DELAY = 256; // 2^8 epochs (~27 hours)
  public static int PERSISTENT_COMMITTEE_PERIOD = 2048; // 2^11 epochs (~9 days)
+ public static int MAX_EPOCHS_PER_CROSSLINK = 64; // 2^11 epochs (~9 days)
+ public static int MIN_EPOCHS_TO_INACTIVITY_PENALTY = 4; // 2^11 epochs (~9 days)
 
- // Initial values
- public static int GENESIS_FORK_VERSION = 0;
- public static long GENESIS_SLOT = 4294967296L; // 2^32
- public static long GENESIS_EPOCH = slot_to_epoch(GENESIS_SLOT);
- public static long GENESIS_START_SHARD = 0;
- public static UnsignedLong FAR_FUTURE_EPOCH = UnsignedLong.MAX_VALUE;
- public static Bytes32 ZERO_HASH = Bytes32.ZERO;
- public static BLSSignature EMPTY_SIGNATURE = BLSSignature.empty();
- public static Bytes BLS_WITHDRAWAL_PREFIX_BYTE = Bytes.EMPTY;
+ public static int SECONDS_PER_SLOT = 6; // removed in 7.1 main spec for some reason but keep for now
 
  // State list lengths
  public static int LATEST_RANDAO_MIXES_LENGTH = 8192; // 2^13 epochs (~36 days)
  public static int LATEST_ACTIVE_INDEX_ROOTS_LENGTH = 8192; // 2^13 epochs (~36 days)
  public static int LATEST_SLASHED_EXIT_LENGTH = 8192; // 2^13 epochs (~36 days)
 
  // Reward and penalty quotients
- public static int BASE_REWARD_QUOTIENT = 32; // 2^5
- public static int WHISTLEBLOWER_REWARD_QUOTIENT = 512; // 2^9
- public static int ATTESTATION_INCLUSION_REWARD_QUOTIENT = 8; // 2^3
- public static int INACTIVITY_PENALTY_QUOTIENT = 16777216; // 2^24
- public static int MIN_PENALTY_QUOTIENT = 32; // 2^5
+ public static int BASE_REWARD_FACTOR = 32; // 2^5
+ public static int WHISTLEBLOWING_REWARD_QUOTIENT = 512; // 2^9
+ public static int PROPOSER_REWARD_QUOTIENT = 8; // 2^3
+ public static int INACTIVITY_PENALTY_QUOTIENT = 33554432; // 2^25
+ public static int MIN_SLASHING_PENALTY_QUOTIENT = 32; // 2^5
 
  // Max transactions per block
  public static int MAX_PROPOSER_SLASHINGS = 16; // 2^4
@@ -84,7 +84,7 @@ public class Constants {
  public static int MAX_TRANSFERS = 16; // 2^4
 
  // Signature domains
- public static int DOMAIN_BEACON_BLOCK = 0;
+ public static int DOMAIN_BEACON_PROPOSER = 0;
  public static int DOMAIN_RANDAO = 1;
  public static int DOMAIN_ATTESTATION = 2;
  public static int DOMAIN_DEPOSIT = 3;