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Source file default_parameters.ml
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460(*****************************************************************************)(* *)(* Open Source License *)(* Copyright (c) 2018 Dynamic Ledger Solutions, Inc. <contact@tezos.com> *)(* Copyright (c) 2021 Nomadic Labs <contact@nomadic-labs.com> *)(* Copyright (c) 2022 Trili Tech <contact@trili.tech> *)(* *)(* Permission is hereby granted, free of charge, to any person obtaining a *)(* copy of this software and associated documentation files (the "Software"),*)(* to deal in the Software without restriction, including without limitation *)(* the rights to use, copy, modify, merge, publish, distribute, sublicense, *)(* and/or sell copies of the Software, and to permit persons to whom the *)(* Software is furnished to do so, subject to the following conditions: *)(* *)(* The above copyright notice and this permission notice shall be included *)(* in all copies or substantial portions of the Software. *)(* *)(* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR*)(* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, *)(* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL *)(* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER*)(* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING *)(* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER *)(* DEALINGS IN THE SOFTWARE. *)(* *)(*****************************************************************************)openProtocol.Alpha_contextlettx_rollup_finality_period=40_000(** The challenge window is about two weeks with 15s block-time,
(4 * 60 * 24 * 14).
WARNING: changing this value also impacts
[sc_rollup_max_active_outbox_levels]. See below. *)letsc_rollup_challenge_window_in_blocks=80_640(** Number of active levels kept for executing outbox messages.
WARNING: Changing this value impacts the storage charge for
applying messages from the outbox. It also requires migration for
remapping existing active outbox levels to new indices. *)letsc_rollup_max_active_outbox_levels=Int32.of_intsc_rollup_challenge_window_in_blocks(** Maximum number of outbox messages per level.
WARNING: changing this value impacts the storage size a rollup has to
pay for at origination time. *)letsc_rollup_max_outbox_messages_per_level=100(** The timeout period is about a week with 15s block-time,
(4 * 60 * 24 * 7).
It suffers from the same risk of censorship as
{!sc_rollup_challenge_windows_in_blocks} so we use the same value.
*)letsc_rollup_timeout_period_in_blocks=40_320(** We want to allow a max lookahead in blocks of 4 weeks, so the rollup
can still move forward even if its impossible to cement commitments.
As there is a challenge window of 2 weeks, and because the maximum
duration of a game is 2 weeks, the hypothetical maximum time
to cement a block is a month, (4 * 60 * 24 * 30).
Be careful, this constant has an impact of the maximum cost of
a rollup on the storage:
[maximum_cost_in_storage =
(sc_rollup_max_lookahead_in_blocks / commitment_period) *
max_commitment_storage_size_in_bytes *
cost_per_byte]
With the current values:
[maximum_cost_in_storage = 348.3 tez]
*)letsc_rollup_max_lookahead_in_blocks=172_800l(* DAL/FIXME https://gitlab.com/tezos/tezos/-/issues/3177
Think harder about those values. *)letdefault_cryptobox_parameters={Dal.page_size=4096;slot_size=1lsl20;redundancy_factor=16;number_of_shards=2048;}letdefault_dal=Constants.Parametric.{feature_enable=false;number_of_slots=256;attestation_lag=1;attestation_threshold=50;blocks_per_epoch=32l;cryptobox_parameters=default_cryptobox_parameters;}letconstants_mainnet=letconsensus_committee_size=7000inletblock_time=15inletConstants.Generated.{consensus_threshold;baking_reward_fixed_portion;baking_reward_bonus_per_slot;endorsing_reward_per_slot;liquidity_baking_subsidy;}=Constants.Generated.generate~consensus_committee_size~blocks_per_minute:{numerator=60;denominator=block_time}in{Constants.Parametric.preserved_cycles=5;blocks_per_cycle=16384l;blocks_per_commitment=128l;nonce_revelation_threshold=512l;blocks_per_stake_snapshot=1024l;cycles_per_voting_period=5l;hard_gas_limit_per_operation=Gas.Arith.(integral_of_int_exn1_040_000);hard_gas_limit_per_block=Gas.Arith.(integral_of_int_exn2_600_000);(* When reducing block times, consider adapting this constant so
the block production's overhead is not too important. *)proof_of_work_threshold=Int64.(sub(shift_left1L48)1L);minimal_stake=Tez.(mul_exnone6_000);(* VDF's difficulty must be a multiple of `nonce_revelation_threshold` times
the block time. At the moment it is equal to 8B = 8000 * 5 * .2M with
- 8000 ~= 512 * 15 that is nonce_revelation_threshold * block time
- .2M ~= number of modular squaring per second on benchmark machine
with 2.8GHz CPU
- 5: security factor (strictly higher than the ratio between highest CPU
clock rate and benchmark machine that is 8.43/2.8 ~= 3 *)vdf_difficulty=8_000_000_000L;seed_nonce_revelation_tip=(matchTez.(one/?8L)withOkc->c|Error_->assertfalse);origination_size=257;baking_reward_fixed_portion(* 5_000_000 mutez *);baking_reward_bonus_per_slot(* 2_143 mutez *);endorsing_reward_per_slot(* 1_428 mutez *);hard_storage_limit_per_operation=Z.of_int60_000;cost_per_byte=Tez.of_mutez_exn250L;quorum_min=20_00l;quorum_max=70_00l;min_proposal_quorum=5_00l;(* liquidity_baking_subsidy is 1/16th of maximum total rewards for a block *)liquidity_baking_subsidy(* 1_250_000 mutez *);(* 1/2 window size of 2000 blocks with precision of 1_000_000
for integer computation *)liquidity_baking_toggle_ema_threshold=1_000_000_000l;(* The rationale behind the value of this constant is that an
operation should be considered alive for about one hour:
minimal_block_delay * max_operations_time_to_live = 3600
The unit for this value is a block.
*)max_operations_time_to_live=240;minimal_block_delay=Period.of_seconds_exn(Int64.of_intblock_time);delay_increment_per_round=Period.of_seconds_exn8L;consensus_committee_size;consensus_threshold;(* 4667 slots *)minimal_participation_ratio={numerator=2;denominator=3};max_slashing_period=2;frozen_deposits_percentage=10;double_baking_punishment=Tez.(mul_exnone640);ratio_of_frozen_deposits_slashed_per_double_endorsement={numerator=1;denominator=2};(* The `testnet_dictator` should absolutely be None on mainnet *)testnet_dictator=None;initial_seed=None;(* A cache for contract source code and storage. Its size has been
chosen not too exceed 100 000 000 bytes. *)cache_script_size=100_000_000;(* A cache for the stake distribution for all cycles stored at any
moment: preserved_cycles + max_slashing_period + 1 = 8 currently. *)cache_stake_distribution_cycles=8;(* One for the sampler state for all cycles stored at any moment (as above). *)cache_sampler_state_cycles=8;tx_rollup={enable=false;(* Based on how storage burn is implemented for
transaction rollups, this means that a rollup operator
can create 100 inboxes (40 bytes per inbox) before
having to pay storage burn. *)origination_size=4_000;(* Considering an average size of layer-2 operations of
20, this gives a TPS per rollup higher than 400, and
the capability to have two rollups at full speed on
mainnet (as long as they do not reach scalability
issues related to proof size). *)hard_size_limit_per_inbox=500_000;hard_size_limit_per_message=5_000;commitment_bond=Tez.of_mutez_exn10_000_000_000L;finality_period=tx_rollup_finality_period;max_inboxes_count=tx_rollup_finality_period+100;(* [60_000] blocks is about two weeks. *)withdraw_period=tx_rollup_finality_period;max_messages_per_inbox=1_010;(* Must be greater than the withdraw period. *)max_commitments_count=(2*tx_rollup_finality_period)+100;cost_per_byte_ema_factor=120;(* Tickets are transmitted in batches in the
[Tx_rollup_dispatch_tickets] operation.
The semantics is that this operation is used to
concretize the withdraw orders emitted by the layer-2,
one layer-1 operation per messages of an
inbox. Therefore, it is of significant importance that
a valid batch does not produce a list of withdraw
orders which could not fit in a layer-1 operation.
With these values, at least 2048 bytes remain available
to store the rest of the operands of
[Tx_rollup_dispatch_tickets] (in practice, even more,
because we overapproximate the size of tickets). So we
are safe. *)max_withdrawals_per_batch=15;max_ticket_payload_size=2_048;(* Must be smaller than maximum limit of a manager operation
(minus overhead), since we need to limit our proofs to those
that can fit in an operation. *)rejection_max_proof_size=30000;(* This is the first block of cycle 618, which is expected to
be about one year after the activation of protocol J. See
https://tzstats.com/cycle/618 *)sunset_level=3_473_409l;};dal=default_dal;sc_rollup={enable=true;arith_pvm_enable=false;(* The following value is chosen to prevent spam. *)origination_size=6_314;challenge_window_in_blocks=sc_rollup_challenge_window_in_blocks;commitment_period_in_blocks=60;stake_amount=Tez.of_mutez_exn10_000_000_000L;max_lookahead_in_blocks=sc_rollup_max_lookahead_in_blocks;max_active_outbox_levels=sc_rollup_max_active_outbox_levels;max_outbox_messages_per_level=sc_rollup_max_outbox_messages_per_level;(* The default number of required sections in a dissection *)number_of_sections_in_dissection=32;timeout_period_in_blocks=sc_rollup_timeout_period_in_blocks;(* We store multiple cemented commitments because we want to
allow the execution of outbox messages against cemented
commitments that are older than the last cemented commitment.
The execution of an outbox message is a manager operation,
and manager operations are kept in the mempool for one
hour. Hence we only need to ensure that an outbox message
can be validated against a cemented commitment produced in the
last hour. If we assume that the rollup is operating without
issues, that is no commitments are being refuted and commitments
are published and cemented regularly by one rollup node, we can
expect commitments to be cemented approximately every 15
minutes, or equivalently we can expect 5 commitments to be
published in one hour (at minutes 0, 15, 30, 45 and 60).
Therefore, we need to keep 5 cemented commitments to guarantee
that the execution of an outbox operation can always be
validated against a cemented commitment while it is in the
mempool. *)max_number_of_stored_cemented_commitments=5;max_number_of_parallel_games=32;};zk_rollup={enable=false;(* TODO: https://gitlab.com/tezos/tezos/-/issues/3726
The following constants need to be refined. *)origination_size=4_000;min_pending_to_process=10;};}(* Sandbox and test networks's Dal cryptobox are computed by this function:
- Redundancy_factor is provided as a parameter;
- The other fields are derived from mainnet's values, as divisions by the
provided factor. *)letderive_cryptobox_parameters~redundancy_factor~mainnet_constants_divider=letm=default_cryptobox_parametersin{Dal.redundancy_factor;page_size=m.page_size/mainnet_constants_divider;slot_size=m.slot_size/mainnet_constants_divider;number_of_shards=m.number_of_shards/mainnet_constants_divider;}letconstants_sandbox=letconsensus_committee_size=256inletblock_time=1inletConstants.Generated.{consensus_threshold=_;baking_reward_fixed_portion;baking_reward_bonus_per_slot;endorsing_reward_per_slot;liquidity_baking_subsidy;}=Constants.Generated.generate~consensus_committee_size~blocks_per_minute:{numerator=60;denominator=block_time}in{constants_mainnetwithdal=Constants.Parametric.{constants_mainnet.dalwithnumber_of_slots=16;blocks_per_epoch=2l;cryptobox_parameters=derive_cryptobox_parameters~redundancy_factor:8~mainnet_constants_divider:32;};Constants.Parametric.preserved_cycles=2;blocks_per_cycle=8l;blocks_per_commitment=4l;nonce_revelation_threshold=4l;blocks_per_stake_snapshot=4l;cycles_per_voting_period=8l;proof_of_work_threshold=Int64.of_int(-1);vdf_difficulty=50_000L;liquidity_baking_subsidy;minimal_block_delay=Period.of_seconds_exn(Int64.of_intblock_time);delay_increment_per_round=Period.one_second;consensus_committee_size=256;consensus_threshold=0;baking_reward_fixed_portion(* 333_333 mutez *);baking_reward_bonus_per_slot(* 3_921 mutez *);endorsing_reward_per_slot(* 2_604 mutez *);max_slashing_period=2;frozen_deposits_percentage=5;}letconstants_test=letconsensus_committee_size=25inletConstants.Generated.{consensus_threshold;baking_reward_fixed_portion;baking_reward_bonus_per_slot;endorsing_reward_per_slot;liquidity_baking_subsidy;}=Constants.Generated.generate~consensus_committee_size~blocks_per_minute:{numerator=2;denominator=1}in{constants_mainnetwithdal=Constants.Parametric.{constants_mainnet.dalwithnumber_of_slots=8;blocks_per_epoch=2l;cryptobox_parameters=derive_cryptobox_parameters~redundancy_factor:4~mainnet_constants_divider:64;};Constants.Parametric.preserved_cycles=3;blocks_per_cycle=12l;blocks_per_commitment=4l;nonce_revelation_threshold=4l;blocks_per_stake_snapshot=4l;cycles_per_voting_period=2l;proof_of_work_threshold=Int64.of_int(-1);vdf_difficulty=50_000L;liquidity_baking_subsidy;consensus_committee_size;consensus_threshold(* 17 slots *);max_slashing_period=2;baking_reward_fixed_portion(* 10 tez *);baking_reward_bonus_per_slot(* 1.25 tez *);endorsing_reward_per_slot(* 0.8 tez *);frozen_deposits_percentage=5(* not 10 so that multiplication and
divisions do not easily get
intermingled *);}lettest_commitments=lazy(List.map(fun(bpkh,amount)->letblinded_public_key_hash=Protocol.Blinded_public_key_hash.of_b58check_exnbpkhinletamount=Protocol.Alpha_context.Tez.of_mutez_exnamountin{Protocol.Alpha_context.Commitment.blinded_public_key_hash;amount})[("btz1bRL4X5BWo2Fj4EsBdUwexXqgTf75uf1qa",23932454669343L);("btz1SxjV1syBgftgKy721czKi3arVkVwYUFSv",72954577464032L);("btz1LtoNCjiW23txBTenALaf5H6NKF1L3c1gw",217487035428348L);("btz1SUd3mMhEBcWudrn8u361MVAec4WYCcFoy",4092742372031L);("btz1MvBXf4orko1tsGmzkjLbpYSgnwUjEe81r",17590039016550L);("btz1LoDZ3zsjgG3k3cqTpUMc9bsXbchu9qMXT",26322312350555L);("btz1RMfq456hFV5AeDiZcQuZhoMv2dMpb9hpP",244951387881443L);("btz1Y9roTh4A7PsMBkp8AgdVFrqUDNaBE59y1",80065050465525L);("btz1Q1N2ePwhVw5ED3aaRVek6EBzYs1GDkSVD",3569618927693L);("btz1VFFVsVMYHd5WfaDTAt92BeQYGK8Ri4eLy",9034781424478L);])letbootstrap_accounts_strings=["edpkuBknW28nW72KG6RoHtYW7p12T6GKc7nAbwYX5m8Wd9sDVC9yav";"edpktzNbDAUjUk697W7gYg2CRuBQjyPxbEg8dLccYYwKSKvkPvjtV9";"edpkuTXkJDGcFd5nh6VvMz8phXxU3Bi7h6hqgywNFi1vZTfQNnS1RV";"edpkuFrRoDSEbJYgxRtLx2ps82UdaYc1WwfS9sE11yhauZt5DgCHbU";"edpkv8EUUH68jmo3f7Um5PezmfGrRF24gnfLpH3sVNwJnV5bVCxL2n";]letbootstrap_balance=Tez.of_mutez_exn4_000_000_000_000Lletcompute_accounts=List.map(funs->letpublic_key=Signature.Public_key.of_b58check_exnsinletpublic_key_hash=Signature.Public_key.hashpublic_keyinParameters.{public_key_hash;public_key=Somepublic_key;amount=bootstrap_balance;delegate_to=None;consensus_key=None;})letbootstrap_accounts=compute_accountsbootstrap_accounts_stringsletmake_bootstrap_account(pkh,pk,amount,delegate_to,consensus_key)=Parameters.{public_key_hash=pkh;public_key=Somepk;amount;delegate_to;consensus_key;}letparameters_of_constants?(bootstrap_accounts=bootstrap_accounts)?(bootstrap_contracts=[])?(commitments=[])constants=Parameters.{bootstrap_accounts;bootstrap_contracts;commitments;constants;security_deposit_ramp_up_cycles=None;no_reward_cycles=None;}letjson_of_parametersparameters=Data_encoding.Json.constructParameters.encodingparameters