Source file default_parameters.ml

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open Protocol.Alpha_context

let tx_rollup_finality_period = 40_000

let constants_mainnet =
  let consensus_committee_size = 7000 in
  let block_time = 30 in
  let Constants.Generated.
        {
          consensus_threshold;
          baking_reward_fixed_portion;
          baking_reward_bonus_per_slot;
          endorsing_reward_per_slot;
        } =
    Constants.Generated.generate
      ~consensus_committee_size
      ~blocks_per_minute:{numerator = 60; denominator = block_time}
  in
  {
    Constants.preserved_cycles = 5;
    blocks_per_cycle = 8192l;
    blocks_per_commitment = 64l;
    blocks_per_stake_snapshot = 512l;
    cycles_per_voting_period = 5l;
    hard_gas_limit_per_operation = Gas.Arith.(integral_of_int_exn 1_040_000);
    hard_gas_limit_per_block = Gas.Arith.(integral_of_int_exn 5_200_000);
    proof_of_work_threshold = Int64.(sub (shift_left 1L 46) 1L);
    tokens_per_roll = Tez.(mul_exn one 6_000);
    seed_nonce_revelation_tip =
      (match Tez.(one /? 8L) with Ok c -> c | Error _ -> assert false);
    origination_size = 257;
    baking_reward_fixed_portion (* 10_000_000 mutez *);
    baking_reward_bonus_per_slot (* 4_286 mutez *);
    endorsing_reward_per_slot (* 2_857 mutez *);
    hard_storage_limit_per_operation = Z.of_int 60_000;
    cost_per_byte = Tez.of_mutez_exn 250L;
    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 = Tez.of_mutez_exn 2_500_000L;
    (* level after protocol activation when liquidity baking shuts off:
         about 6 months after first activation on mainnet *)
    liquidity_baking_sunset_level = 3_063_809l;
    (* 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 context *  max_operations_ttl = 3600

       The unit for this value is a block.
    *)
    max_operations_time_to_live = 120;
    minimal_block_delay = Period.of_seconds_exn (Int64.of_int block_time);
    delay_increment_per_round = Period.of_seconds_exn 15L;
    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_exn one 640);
    ratio_of_frozen_deposits_slashed_per_double_endorsement =
      {numerator = 1; denominator = 2};
    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 = true;
    (* Based on how storage burn is implemented for
       transaction rollups, this means that a rollup operator
       can create 100 inboxes (40 bytes per inboxes) before
       having to pay storage burn. *)
    tx_rollup_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). *)
    tx_rollup_hard_size_limit_per_inbox = 500_000;
    tx_rollup_hard_size_limit_per_message = 5_000;
    tx_rollup_commitment_bond = Tez.of_mutez_exn 10_000_000_000L;
    tx_rollup_finality_period;
    tx_rollup_max_inboxes_count = tx_rollup_finality_period + 100;
    (* [60_000] blocks is about two weeks. *)
    tx_rollup_withdraw_period = tx_rollup_finality_period;
    tx_rollup_max_messages_per_inbox = 1_010;
    (* Must be greater than the withdraw period. *)
    tx_rollup_max_commitments_count = (2 * tx_rollup_finality_period) + 100;
    tx_rollup_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. *)
    tx_rollup_max_withdrawals_per_batch = 15;
    tx_rollup_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. *)
    tx_rollup_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 *)
    tx_rollup_sunset_level = 3_473_409l;
    sc_rollup_enable = false;
    (* The following value is chosen to prevent spam. *)
    sc_rollup_origination_size = 6_314;
    (* The challenge window is about a week with 30s block-time (604800s / 30s). *)
    sc_rollup_challenge_window_in_blocks = 20_160;
    (* The following value is chosen to limit the length of inbox refutation proofs. *)
    (* TODO: https://gitlab.com/tezos/tezos/-/issues/2556
       The follow constants need to be refined. *)
    sc_rollup_max_available_messages = 1_000_000;
  }

let constants_sandbox =
  let consensus_committee_size = 256 in
  let block_time = 1 in
  let Constants.Generated.
        {
          consensus_threshold = _;
          baking_reward_fixed_portion;
          baking_reward_bonus_per_slot;
          endorsing_reward_per_slot;
        } =
    Constants.Generated.generate
      ~consensus_committee_size
      ~blocks_per_minute:{numerator = 60; denominator = block_time}
  in
  {
    constants_mainnet with
    Constants.preserved_cycles = 2;
    blocks_per_cycle = 8l;
    blocks_per_commitment = 4l;
    blocks_per_stake_snapshot = 4l;
    cycles_per_voting_period = 8l;
    proof_of_work_threshold = Int64.of_int (-1);
    liquidity_baking_sunset_level = 128l;
    minimal_block_delay = Period.of_seconds_exn (Int64.of_int block_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;
  }

let constants_test =
  let consensus_committee_size = 25 in
  let Constants.Generated.
        {
          consensus_threshold;
          baking_reward_fixed_portion;
          baking_reward_bonus_per_slot;
          endorsing_reward_per_slot;
        } =
    Constants.Generated.generate
      ~consensus_committee_size
      ~blocks_per_minute:{numerator = 2; denominator = 1}
  in
  {
    constants_mainnet with
    Constants.preserved_cycles = 3;
    blocks_per_cycle = 12l;
    blocks_per_commitment = 4l;
    blocks_per_stake_snapshot = 4l;
    cycles_per_voting_period = 2l;
    proof_of_work_threshold = Int64.of_int (-1);
    liquidity_baking_sunset_level = 4096l;
    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 *);
  }

let test_commitments =
  lazy
    (List.map
       (fun (bpkh, amount) ->
         let blinded_public_key_hash =
           Protocol.Blinded_public_key_hash.of_b58check_exn bpkh
         in
         let amount = Protocol.Alpha_context.Tez.of_mutez_exn amount in
         {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);
       ])

let bootstrap_accounts_strings =
  [
    "edpkuBknW28nW72KG6RoHtYW7p12T6GKc7nAbwYX5m8Wd9sDVC9yav";
    "edpktzNbDAUjUk697W7gYg2CRuBQjyPxbEg8dLccYYwKSKvkPvjtV9";
    "edpkuTXkJDGcFd5nh6VvMz8phXxU3Bi7h6hqgywNFi1vZTfQNnS1RV";
    "edpkuFrRoDSEbJYgxRtLx2ps82UdaYc1WwfS9sE11yhauZt5DgCHbU";
    "edpkv8EUUH68jmo3f7Um5PezmfGrRF24gnfLpH3sVNwJnV5bVCxL2n";
  ]

let bootstrap_balance = Tez.of_mutez_exn 4_000_000_000_000L

let compute_accounts =
  List.map (fun s ->
      let public_key = Tezos_crypto.Signature.V0.Public_key.of_b58check_exn s in
      let public_key_hash =
        Tezos_crypto.Signature.V0.Public_key.hash public_key
      in
      Parameters.
        {
          public_key_hash;
          public_key = Some public_key;
          amount = bootstrap_balance;
        })

let bootstrap_accounts = compute_accounts bootstrap_accounts_strings

let make_bootstrap_account (pkh, pk, amount) =
  Parameters.{public_key_hash = pkh; public_key = Some pk; amount}

let parameters_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;
    }

let json_of_parameters parameters =
  Data_encoding.Json.construct Parameters.encoding parameters