chainspec.toml.in

[protocol]
# Protocol version.
version = '1.0.0'
# Whether we need to clear latest blocks back to the switch block just before the activation point or not.
hard_reset = false
# This protocol version becomes active at this point.
#
# If it is a timestamp string, it represents the timestamp for the genesis block.  This is the beginning of era 0.  By
# this time, a sufficient majority (> 50% + F/2 — see finality_threshold_fraction below) of validator nodes must be up
# and running to start the blockchain.  This timestamp is also used in seeding the pseudo-random number generator used
# in contract-runtime for computing genesis post-state hash.
#
# If it is an integer, it represents an era ID, meaning the protocol version becomes active at the start of this era.
activation_point = '${TIMESTAMP}'

[network]
# Human readable name for convenience; the genesis_hash is the true identifier.  The name influences the genesis hash by
# contributing to the seeding of the pseudo-random number generator used in contract-runtime for computing genesis
# post-state hash.
name = 'casper-example'
# The maximum size of an acceptable networking message in bytes.  Any message larger than this will
# be rejected at the networking level.
maximum_net_message_size = 25_165_824

[core]
# Era duration.
era_duration = '41 seconds'
# Minimum number of blocks per era.  An era will take longer than `era_duration` if that is necessary to reach the
# minimum height.
minimum_era_height = 5
# Minimum difference between a block's and its child's timestamp.
minimum_block_time = '4096 ms'
# Number of slots available in validator auction.
validator_slots = 7
# A number between 0 and 1 representing the fault tolerance threshold as a fraction, used by the internal finalizer.
# It is the fraction of validators that would need to equivocate to make two honest nodes see two conflicting blocks as
# finalized: A higher value F makes it safer to rely on finalized blocks.  It also makes it more difficult to finalize
# blocks, however, and requires strictly more than (F + 1)/2 validators to be working correctly.
finality_threshold_fraction = [1, 3]
# Protocol version from which nodes are required to hold strict finality signatures.
start_protocol_version_with_strict_finality_signatures_required = '1.5.0'
# Which finality is required for legacy blocks. Options are 'Strict', 'Weak' and 'Any'.
# Used to determine finality sufficiency for new joiners syncing blocks created
# in a protocol version before
# `start_protocol_version_with_strict_finality_signatures_required`.
legacy_required_finality = 'Strict'
# Number of eras before an auction actually defines the set of validators.  If you bond with a sufficient bid in era N,
# you will be a validator in era N + auction_delay + 1.
auction_delay = 1
# The period after genesis during which a genesis validator's bid is locked.
locked_funds_period = '0 days'
# The period in which genesis validator's bid is released over time after it's unlocked.
vesting_schedule_period = '0 weeks'
# Default number of eras that need to pass to be able to withdraw unbonded funds.
unbonding_delay = 7
# Round seigniorage rate represented as a fraction of the total supply.
#
# A rate that makes the rewards roughly 0.05% of the initial stake per block under default NCTL settings.
round_seigniorage_rate = [1, 4_200_000_000_000_000_000]
# Maximum number of associated keys for a single account.
max_associated_keys = 100
# Maximum height of contract runtime call stack.
max_runtime_call_stack_height = 12
# Minimum allowed delegation amount in motes
minimum_delegation_amount = 500_000_000_000
# Global state prune batch size (0 = this feature is off)
prune_batch_size = 0
# Enables strict arguments checking when calling a contract; i.e. that all non-optional args are provided and of the correct `CLType`.
strict_argument_checking = false
# Number of simultaneous peer requests.
simultaneous_peer_requests = 5
# The consensus protocol to use. Options are "Zug" and "Highway".
consensus_protocol = 'Highway'
# The maximum amount of delegators per validator. if the value is 0, there is no maximum capacity.
max_delegators_per_validator = 0
# Setting this to false makes sense only on private chains which don't need to auction new validator slots.
#
# Changing this option makes sense only for private chains which dont need auctioning new validator slots.
allow_auction_bids = true
# Allow peer to peer transfers between users. Setting this to false makes sense only on private chains.
allow_unrestricted_transfers = true
# If set to false, then consensus doesn't compute rewards and always uses 0.
compute_rewards = true
# Defines how refunds of the unused portion of payment amounts are calculated and handled.
#
# The only valid value for 'type' is currently 'refund'.  This causes excess payment amounts to be sent to either a
# pre-defined purse, or back to the sender.  The refunded amount is calculated as the given ratio of the payment amount
# minus the execution costs.
refund_handling = { type = 'refund', refund_ratio = [99, 100] }
# Defines how fees are handled.
#
# Valid options are:
#   'pay_to_proposer': fees are paid to the block proposer
#   'accumulate': fees are accumulated in a special purse and distributed at the end of each era evenly among all
#                 administrator accounts
#   'burn': fees are burned
fee_handling = { type = 'pay_to_proposer' }
# List of public keys of administrator accounts. Setting this option makes only on private chains which require
# administrator accounts for regulatory reasons.
administrators = []

[highway]
# Highway dynamically chooses its round length, between minimum_block_time and maximum_round_length.
maximum_round_length = '525 seconds'
# The factor by which rewards for a round are multiplied if the greatest summit has ≤50% quorum, i.e. no finality.
# Expressed as a fraction (1/5 by default).
reduced_reward_multiplier = [1, 5]

[highway.performance_meter]
# The number of recent blocks to consider when measuring performance for the purpose of deciding the round length.
blocks_to_consider = 10

[deploys]
# The maximum number of Motes allowed to be spent during payment.  0 means unlimited.
max_payment_cost = '0'
# The duration after the deploy timestamp that it can be included in a block.
max_ttl = '2 hours'
# The maximum number of other deploys a deploy can depend on (require to have been executed before it can execute).
max_dependencies = 10
# Maximum block size in bytes including deploys contained by the block.  0 means unlimited.
max_block_size = 10_485_760
# Maximum deploy size in bytes.  Size is of the deploy when serialized via ToBytes.
max_deploy_size = 1_048_576
# The maximum number of non-transfer deploys permitted in a single block.
block_max_deploy_count = 100
# The maximum number of wasm-less transfer deploys permitted in a single block.
block_max_transfer_count = 1000
# The maximum number of approvals permitted in a single block.
block_max_approval_count = 2600
# The upper limit of total gas of all deploys in a block.
block_gas_limit = 10_000_000_000_000
# The limit of length of serialized payment code arguments.
payment_args_max_length = 1024
# The limit of length of serialized session code arguments.
session_args_max_length = 1024
# The minimum amount in motes for a valid native transfer.
native_transfer_minimum_motes = 2_500_000_000
# The maximum value to which `deploy_acceptor.timestamp_leeway` can be set in the config.toml file.
max_timestamp_leeway = '5 seconds'

[wasm]
# Amount of free memory (in 64kB pages) each contract can use for stack.
max_memory = 64
# Max stack height (native WebAssembly stack limiter).
max_stack_height = 500

[wasm.storage_costs]
# Gas charged per byte stored in the global state.
gas_per_byte = 1_117_587

[wasm.opcode_costs]
# Bit operations multiplier.
bit = 300
# Arithmetic add operations multiplier.
add = 210
# Mul operations multiplier.
mul = 240
# Div operations multiplier.
div = 320
# Memory load operation multiplier.
load = 2_500
# Memory store operation multiplier.
store = 4_700
# Const store operation multiplier.
const = 110
# Local operations multiplier.
local = 390
# Global operations multiplier.
global = 390
# Integer operations multiplier.
integer_comparison = 250
# Conversion operations multiplier.
conversion = 420
# Unreachable operation multiplier.
unreachable = 270
# Nop operation multiplier.
nop = 200
# Get current memory operation multiplier.
current_memory = 290
# Grow memory cost, per page (64kb).
grow_memory = 240_000

# Control flow operations multiplier.
[wasm.opcode_costs.control_flow]
block = 440
loop = 440
if = 440
else = 440
end = 440
br = 35_000
br_if = 35_000
return = 440
select = 440
call = 68_000
call_indirect = 68_000
drop = 440

[wasm.opcode_costs.control_flow.br_table]
# Fixed cost per `br_table` opcode
cost = 35_000
# Size of target labels in the `br_table` opcode will be multiplied by `size_multiplier`
size_multiplier = 100

# Host function declarations are located in smart_contracts/contract/src/ext_ffi.rs
[wasm.host_function_costs]
add = { cost = 5_800, arguments = [0, 0, 0, 0] }
add_associated_key = { cost = 9_000, arguments = [0, 0, 0] }
add_contract_version = { cost = 200, arguments = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0] }
blake2b = { cost = 200, arguments = [0, 0, 0, 0] }
call_contract = { cost = 4_500, arguments = [0, 0, 0, 0, 0, 420, 0] }
call_versioned_contract = { cost = 4_500, arguments = [0, 0, 0, 0, 0, 0, 0, 420, 0] }
create_contract_package_at_hash = { cost = 200, arguments = [0, 0] }
create_contract_user_group = { cost = 200, arguments = [0, 0, 0, 0, 0, 0, 0, 0] }
create_purse = { cost = 2_500_000_000, arguments = [0, 0] }
disable_contract_version = { cost = 200, arguments = [0, 0, 0, 0] }
enable_contract_version = { cost = 200, arguments = [0, 0, 0, 0] }
get_balance = { cost = 3_800, arguments = [0, 0, 0] }
get_blocktime = { cost = 330, arguments = [0] }
get_caller = { cost = 380, arguments = [0] }
get_key = { cost = 2_000, arguments = [0, 440, 0, 0, 0] }
get_main_purse = { cost = 1_300, arguments = [0] }
get_named_arg = { cost = 200, arguments = [0, 0, 0, 0] }
get_named_arg_size = { cost = 200, arguments = [0, 0, 0] }
get_phase = { cost = 710, arguments = [0] }
get_system_contract = { cost = 1_100, arguments = [0, 0, 0] }
has_key = { cost = 1_500, arguments = [0, 840] }
is_valid_uref = { cost = 760, arguments = [0, 0] }
load_named_keys = { cost = 42_000, arguments = [0, 0] }
new_uref = { cost = 17_000, arguments = [0, 0, 590] }
random_bytes = { cost = 200, arguments = [0, 0] }
print = { cost = 20_000, arguments = [0, 4_600] }
provision_contract_user_group_uref = { cost = 200, arguments = [0, 0, 0, 0, 0] }
put_key = { cost = 38_000, arguments = [0, 1_100, 0, 0] }
read_host_buffer = { cost = 3_500, arguments = [0, 310, 0] }
read_value = { cost = 6_000, arguments = [0, 0, 0] }
read_value_local = { cost = 5_500, arguments = [0, 590, 0] }
remove_associated_key = { cost = 4_200, arguments = [0, 0] }
remove_contract_user_group = { cost = 200, arguments = [0, 0, 0, 0] }
remove_contract_user_group_urefs = { cost = 200, arguments = [0, 0, 0, 0, 0, 0] }
remove_key = { cost = 61_000, arguments = [0, 3_200] }
ret = { cost = 23_000, arguments = [0, 420_000] }
revert = { cost = 500, arguments = [0] }
set_action_threshold = { cost = 74_000, arguments = [0, 0] }
transfer_from_purse_to_account = { cost = 2_500_000_000, arguments = [0, 0, 0, 0, 0, 0, 0, 0, 0] }
transfer_from_purse_to_purse = { cost = 82_000, arguments = [0, 0, 0, 0, 0, 0, 0, 0] }
transfer_to_account = { cost = 2_500_000_000, arguments = [0, 0, 0, 0, 0, 0, 0] }
update_associated_key = { cost = 4_200, arguments = [0, 0, 0] }
write = { cost = 14_000, arguments = [0, 0, 0, 980] }
write_local = { cost = 9_500, arguments = [0, 1_800, 0, 520] }

[system_costs]
wasmless_transfer_cost = 100_000_000

[system_costs.auction_costs]
get_era_validators = 10_000
read_seigniorage_recipients = 10_000
add_bid = 2_500_000_000
withdraw_bid = 2_500_000_000
delegate = 2_500_000_000
undelegate = 2_500_000_000
run_auction = 10_000
slash = 10_000
distribute = 10_000
withdraw_delegator_reward = 10_000
withdraw_validator_reward = 10_000
read_era_id = 10_000
activate_bid = 10_000
redelegate = 2_500_000_000

[system_costs.mint_costs]
mint = 2_500_000_000
reduce_total_supply = 10_000
create = 2_500_000_000
balance = 10_000
transfer = 10_000
read_base_round_reward = 10_000
mint_into_existing_purse = 2_500_000_000

[system_costs.handle_payment_costs]
get_payment_purse = 10_000
set_refund_purse = 10_000
get_refund_purse = 10_000
finalize_payment = 10_000

[system_costs.standard_payment_costs]
pay = 10_000