PoSRegister

This contract is used let user participate in PoS chain. If anyone want to become a PoS node, he need to interact with this contract. This contract provide serveral methods to increase or decrease PoS votes:

• register - Regist in PoS chain to become a PoS node
• increaseStake - Increase PoS stake
• retire - Decrease PoS stake

Also several methods to query one account's PoS info:

• getVotes - Query one account's votes info, will return totalStakedVotes and totalUnlockedVotes
• identifierToAddress - Query one PoS account's binded PoW address
• addressToIdentifier - Query one PoW account's binded PoS address

PoSRegister's hex40 contract address is 0x0888000000000000000000000000000000000005

// SPDX-License-Identifier: MIT
pragma solidity >=0.5.0;

interface PoSRegister {
    /**
     * @dev Register PoS account
     * @param indentifier - PoS account address to register
     * @param votePower - votes count
     * @param blsPubKey - BLS public key
     * @param vrfPubKey - VRF public key
     * @param blsPubKeyProof - BLS public key's proof of legality, used to against some attack, generated by conflux-rust fullnode
     */
    function register(
        bytes32 indentifier,
        uint64 votePower,
        bytes calldata blsPubKey,
        bytes calldata vrfPubKey,
        bytes[2] calldata blsPubKeyProof
    ) external;

    /**
     * @dev Increase specified number votes for msg.sender
     * @param votePower - count of votes to increase
     */
    function increaseStake(uint64 votePower) external;

    /**
     * @dev Retire specified number votes for msg.sender
     * @param votePower - count of votes to retire
     */
    function retire(uint64 votePower) external;

    /**
     * @dev Query PoS account's lock info. Include "totalStakedVotes" and "totalUnlockedVotes"
     * @param identifier - PoS address
     */
    function getVotes(bytes32 identifier) external view returns (uint256, uint256);

    /**
     * @dev Query the PoW address binding with specified PoS address
     * @param identifier - PoS address
     */
    function identifierToAddress(bytes32 identifier) external view returns (address);

    /**
     * @dev Query the PoS address binding with specified PoW address
     * @param addr - PoW address
     */
    function addressToIdentifier(address addr) external view returns (bytes32);

    /**
     * @dev Emitted when register method executed successfully
     */
    event Register(bytes32 indexed identifier, bytes blsPubKey, bytes vrfPubKey);

    /**
     * @dev Emitted when increaseStake method executed successfully
     */
    event IncreaseStake(bytes32 indexed identifier, uint64 votePower);

    /**
     * @dev Emitted when retire method executed successfully
     */
    event Retire(bytes32 indexed identifier, uint64 votePower);
}