chik_sdk_types/
constants.rs

1use chik_consensus::consensus_constants::ConsensusConstants;
2use chik_protocol::Bytes32;
3use chik_sha2::Sha256;
4use hex_literal::hex;
5use once_cell::sync::Lazy;
6
7const MAINNET_GENESIS_CHALLENGE: Bytes32 = Bytes32::new(hex!(
8    "ccd5bb71183532bff220ba46c268991a3ff07eb358e8255a65c30a2dce0e5fbb"
9));
10
11const TESTNET11_GENESIS_CHALLENGE: Bytes32 = Bytes32::new(hex!(
12    "37a90eb5185a9c4439a91ddc98bbadce7b4feba060d50116a067de66bf236615"
13));
14
15/// Used to compute the default constants used by Chik's mainnet network, with a custom
16/// [`genesis_challenge`](ConsensusConstants::genesis_challenge) and
17/// [`agg_sig_me_additional_data`](ConsensusConstants::agg_sig_me_additional_data).
18pub fn default_constants(genesis_challenge: Bytes32, agg_sig_me: Bytes32) -> ConsensusConstants {
19    ConsensusConstants {
20        slot_blocks_target: 32,
21        min_blocks_per_challenge_block: 16,
22        max_sub_slot_blocks: 128,
23        num_sps_sub_slot: 64,
24        sub_slot_iters_starting: 2u64.pow(27),
25        difficulty_constant_factor: 2u128.pow(67),
26        difficulty_starting: 7,
27        difficulty_change_max_factor: 3,
28        sub_epoch_blocks: 384,
29        epoch_blocks: 4608,
30        significant_bits: 8,
31        discriminant_size_bits: 1024,
32        number_zero_bits_plot_filter_v1: 9,
33        number_zero_bits_plot_filter_v2: 9, // Placeholder
34        min_plot_size: 32,
35        max_plot_size: 50,
36        sub_slot_time_target: 600,
37        num_sp_intervals_extra: 3,
38        max_future_time2: 120,
39        number_of_timestamps: 11,
40        genesis_challenge,
41        agg_sig_me_additional_data: agg_sig_me,
42        agg_sig_parent_additional_data: hash(agg_sig_me, 43),
43        agg_sig_puzzle_additional_data: hash(agg_sig_me, 44),
44        agg_sig_amount_additional_data: hash(agg_sig_me, 45),
45        agg_sig_puzzle_amount_additional_data: hash(agg_sig_me, 46),
46        agg_sig_parent_amount_additional_data: hash(agg_sig_me, 47),
47        agg_sig_parent_puzzle_additional_data: hash(agg_sig_me, 48),
48        genesis_pre_farm_pool_puzzle_hash: Bytes32::new(hex!(
49            "d23da14695a188ae5708dd152263c4db883eb27edeb936178d4d988b8f3ce5fc"
50        )),
51        genesis_pre_farm_farmer_puzzle_hash: Bytes32::new(hex!(
52            "3d8765d3a597ec1d99663f6c9816d915b9f68613ac94009884c4addaefcce6af"
53        )),
54        max_vdf_witness_size: 64,
55        mempool_block_buffer: 10,
56        max_coin_amount: u64::MAX,
57        max_block_cost_klvm: 11_000_000_000,
58        cost_per_byte: 12_000,
59        weight_proof_threshold: 2,
60        blocks_cache_size: 4608 + 128 * 4,
61        weight_proof_recent_blocks: 1000,
62        max_block_count_per_requests: 32,
63        max_generator_size: 1_000_000,
64        max_generator_ref_list_size: 512,
65        pool_sub_slot_iters: 37_600_000_000,
66        hard_fork_height: 5_496_000,
67        hard_fork2_height: 0xffff_ffff, // Placeholder
68        plot_filter_128_height: 10_542_000,
69        plot_filter_64_height: 15_592_000,
70        plot_filter_32_height: 20_643_000,
71
72        // Placeholders
73        plot_difficulty_4_height: 0xffff_ffff,
74        plot_difficulty_5_height: 0xffff_ffff,
75        plot_difficulty_6_height: 0xffff_ffff,
76        plot_difficulty_7_height: 0xffff_ffff,
77        plot_difficulty_8_height: 0xffff_ffff,
78    }
79}
80
81/// The consensus constants used on Chik's mainnet network. Mainnet should be used for
82/// production applications.
83pub static MAINNET_CONSTANTS: Lazy<ConsensusConstants> =
84    Lazy::new(|| default_constants(MAINNET_GENESIS_CHALLENGE, MAINNET_GENESIS_CHALLENGE));
85
86/// The consensus constants used on Chik's testnet11 network. Testnet11 should be used for
87/// development applications.
88pub static TESTNET11_CONSTANTS: Lazy<ConsensusConstants> = Lazy::new(|| ConsensusConstants {
89    sub_slot_iters_starting: 2u64.pow(26),
90    difficulty_constant_factor: 10_052_721_566_054,
91    difficulty_starting: 30,
92    epoch_blocks: 768,
93    min_plot_size: 18,
94    genesis_pre_farm_pool_puzzle_hash: Bytes32::new(hex!(
95        "3ef7c233fc0785f3c0cae5992c1d35e7c955ca37a423571c1607ba392a9d12f7"
96    )),
97    genesis_pre_farm_farmer_puzzle_hash: Bytes32::new(hex!(
98        "08296fc227decd043aee855741444538e4cc9a31772c4d1a9e6242d1e777e42a"
99    )),
100    hard_fork_height: 0,
101    plot_filter_128_height: 6_029_568,
102    plot_filter_64_height: 11_075_328,
103    plot_filter_32_height: 16_121_088,
104    ..default_constants(TESTNET11_GENESIS_CHALLENGE, TESTNET11_GENESIS_CHALLENGE)
105});
106
107fn hash(agg_sig_data: Bytes32, byte: u8) -> Bytes32 {
108    let mut hasher = Sha256::new();
109    hasher.update(agg_sig_data);
110    hasher.update([byte]);
111    hasher.finalize().into()
112}
chik_sdk_types/constants.rs

chik_sdk_types/
constants.rs
