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ParamsControl

ParamsControl is a smart contract at address 0x0888000000000000000000000000000000000007 that allows participation in the chain parameter DAO vote on the Conflux network. Below are the addresses for both the Testnet and Mainnet environments, where you can interact with this contract:

To check the current chain parameters, you can use the cfx_getParamsFromVote JSON-RPC method. Detailed information on this method can be found in the cfx_getParamsFromVote documentation.

Additionally, a frontend panel is available for on-chain DAO voting, providing a user-friendly interface for participating in governance activities.

接口​

// SPDX-License-Identifier: MIT

pragma solidity >=0.8.0;

interface ParamsControl {
    struct Vote {
        uint16 topic_index;
        uint256[3] votes;
    }

/*** 查询函数 ***/
/**
 * @dev 为参数投票
 * @param vote_round 投票轮次
 * @param vote_data 投票列表
 */
function castVote(uint64 vote_round, Vote[] calldata vote_data) external;

/**
 * @dev 读取账户的投票数据
 * @param addr 要读取的账户地址
 */
function readVote(address addr) external view returns (Vote[] memory);

/**
 * @dev 当前投票轮次
 */
function currentRound() external view returns (uint64);

/**
 * @dev 读取指定轮次的总投票数
 * @param vote_round 投票轮次
 */
function totalVotes(uint64 vote_round) external view returns (Vote[] memory);

/**
 * @dev 读取该轮次的 PoS 质押额。
 */
     function posStakeForVotes(uint64) external view returns (uint256);

event CastVote(uint64 indexed vote_round, address indexed addr, uint16 indexed topic_index, uint256[3] votes);
event RevokeVote(uint64 indexed vote_round, address indexed addr, uint16 indexed topic_index, uint256[3] votes);

topic_index​

The topic_index in the Vote struct is used to specify which chain parameter is being voted on. Here is the structure of the Vote:

struct Vote {
    uint16 topic_index;
    uint256[3] votes;
}

Currently, there are four chain parameters available for voting:

  • powBaseReward:
    • Determines the base reward of a Proof of Work (PoW) block.
  • interestRate:
    • Determines the base interest rate for Proof of Stake (PoS).
  • storagePointProp:
    • This integer parameter defines the proportion of sponsored storage that will be converted to storage points.
    • The proportion is calculated using the formula: storagePointProp / (storagePointProp + 10**18).
  • baseFeeShareProp:
    • This integer parameter determines the proportion of the transaction base fee that will be rewarded to the miner.
    • The proportion is calculated using the formula: baseFeeShareProp / (baseFeeShareProp + 10**18).

These parameters allow the community to participate in the governance of the Conflux network by voting on key operational metrics.