Contract Source Code:

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "./sources/OZ/ERC20.sol";
import "./sources/OZ/Ownable.sol";
import "./sources/OZ/ERC20Burnable.sol";
import "./sources/OZ/Pausable.sol";

contract EmoliumToken is ERC20, ERC20Burnable, Ownable, Pausable {
    uint256 public initialSupply = 0 * 10**18;
    string public constant tokenName = "Emolium";
    string public constant tokenSymbol = "EML";

    // Mapping for authorized minters and burners
    mapping(address => bool) public authorizedMinters;
    mapping(address => bool) public authorizedBurners;

    // Mapping to store registered blockchains with a string ID
    mapping(string => string) public blockchainRegistry;

    // Variable to store the Chief Validator address
    address public chiefValidator;

    // Reward amount per proof
    uint256 public rewardPerProof;

    event MinterAdded(address indexed minter);
    event MinterRemoved(address indexed minter);
    event BurnerAdded(address indexed burner);
    event BurnerRemoved(address indexed burner);
    event BlockchainRegistered(string indexed chainId, string chainName);
    event ChiefValidatorSet(address indexed chiefValidator);
    event RewardPerProofUpdated(uint256 rewardPerProof);

    // The constructor takes the initial owner address and calls the Ownable constructor
    constructor(address initialOwner) ERC20(tokenName, tokenSymbol) Ownable(initialOwner) {
        _mint(initialOwner, initialSupply);
        transferOwnership(initialOwner);
    }

    // Modifier to limit access to authorized minters
    modifier onlyAuthorizedMinter() {
        require(authorizedMinters[msg.sender], "Not an authorized minter");
        _;
    }

    // Modifier to limit access to authorized burners
    modifier onlyAuthorizedBurner() {
        require(authorizedBurners[msg.sender], "Not an authorized burner");
        _;
    }

    // Function to add an authorized minter
    function addMinter(address minter) external onlyOwner {
        authorizedMinters[minter] = true;
        emit MinterAdded(minter);
    }

    // Function to remove an authorized minter
    function removeMinter(address minter) external onlyOwner {
        authorizedMinters[minter] = false;
        emit MinterRemoved(minter);
    }

    // Function to add an authorized burner
    function addBurner(address burner) external onlyOwner {
        authorizedBurners[burner] = true;
        emit BurnerAdded(burner);
    }

    // Function to remove an authorized burner
    function removeBurner(address burner) external onlyOwner {
        authorizedBurners[burner] = false;
        emit BurnerRemoved(burner);
    }

    // Function to mint for authorized minters
    function mint(address to, uint256 amount) external onlyAuthorizedMinter whenNotPaused {
        _mint(to, amount);
    }

    // Function to burn for authorized burners
    function burn(uint256 amount) public override onlyAuthorizedBurner whenNotPaused {
        super.burn(amount);
    }

    // Function to burnFrom for authorized burners
    function burnFrom(address account, uint256 amount) public override onlyAuthorizedBurner whenNotPaused {
        super.burnFrom(account, amount);
    }

    // Function to register a blockchain with its ID and name
    function registerBlockchain(string calldata id, string calldata chainName) external onlyOwner whenNotPaused {
        blockchainRegistry[id] = chainName;
        emit BlockchainRegistered(id, chainName);
    }

    // Function to get the name of a registered blockchain from its ID
    function getBlockchainById(string calldata id) external view returns (string memory) {
        return blockchainRegistry[id];
    }

    // Function to set the Chief Validator address
    function setChiefValidator(address _chiefValidator) external onlyOwner {
        chiefValidator = _chiefValidator;
        emit ChiefValidatorSet(_chiefValidator);
    }

    // Function to get the Chief Validator address
    function getChiefValidator() external view returns (address) {
        return chiefValidator;
    }

    // Function to set the reward amount per proof
    function setRewardPerProof(uint256 _rewardPerProof) external onlyOwner {
        rewardPerProof = _rewardPerProof;
        emit RewardPerProofUpdated(_rewardPerProof);
    }

    // Function to get the reward amount per proof
    function getRewardPerProof() external view returns (uint256) {
        return rewardPerProof;
    }

    // Function to pause the contract
    function pause() external onlyOwner {
        _pause();
    }

    // Function to unpause the contract
    function unpause() external onlyOwner {
        _unpause();
    }

    // Override transfer to include pause check
    function transfer(address recipient, uint256 amount) public override whenNotPaused returns (bool) {
        return super.transfer(recipient, amount);
    }

    // Override transferFrom to include pause check
    function transferFrom(address sender, address recipient, uint256 amount) public override whenNotPaused returns (bool) {
        return super.transferFrom(sender, recipient, amount);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Pausable.sol)

pragma solidity ^0.8.20;

import {Context} from "./Context.sol";

abstract contract Pausable is Context {
    bool private _paused;

    event Paused(address account);
    event Unpaused(address account);

    error EnforcedPause();
    error ExpectedPause();

    constructor() {
        _paused = false;
    }

    modifier whenNotPaused() {
        _requireNotPaused();
        _;
    }

    modifier whenPaused() {
        _requirePaused();
        _;
    }

    function paused() public view virtual returns (bool) {
        return _paused;
    }

    function _requireNotPaused() internal view virtual {
        if (paused()) {
            revert EnforcedPause();
        }
    }

    function _requirePaused() internal view virtual {
        if (!paused()) {
            revert ExpectedPause();
        }
    }

    function _pause() internal virtual whenNotPaused {
        _paused = true;
        emit Paused(_msgSender());
    }

    function _unpause() internal virtual whenPaused {
        _paused = false;
        emit Unpaused(_msgSender());
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/ERC20Burnable.sol)

pragma solidity ^0.8.20;

import "./ERC20.sol";
import "./Context.sol";

abstract contract ERC20Burnable is Context, ERC20 {

    function burn(uint256 value) public virtual {
        _burn(_msgSender(), value);
    }

    function burnFrom(address account, uint256 value) public virtual {
        _spendAllowance(account, _msgSender(), value);
        _burn(account, value);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)

pragma solidity ^0.8.20;

import  "./Context.sol";

abstract contract Ownable is Context {
    address private _owner;

    error OwnableUnauthorizedAccount(address account);
    error OwnableInvalidOwner(address owner);

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    constructor(address initialOwner) {
        if (initialOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(initialOwner);
    }

    modifier onlyOwner() {
        _checkOwner();
        _;
    }

    function owner() public view virtual returns (address) {
        return _owner;
    }

    function _checkOwner() internal view virtual {
        if (owner() != _msgSender()) {
            revert OwnableUnauthorizedAccount(_msgSender());
        }
    }

    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    function transferOwnership(address newOwner) public virtual onlyOwner {
        if (newOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(newOwner);
    }

    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/ERC20.sol)

pragma solidity ^0.8.20;

import "./IERC20.sol";
import "./IERC20Metadata.sol";
import "./Context.sol";
import "./draft-IERC6093.sol";

abstract contract ERC20 is Context, IERC20, IERC20Metadata, IERC20Errors {

    mapping(address account => uint256) private _balances;
    mapping(address account => mapping(address spender => uint256)) private _allowances;

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;

    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    function name() public view virtual returns (string memory) {
        return _name;
    }

    function symbol() public view virtual returns (string memory) {
        return _symbol;
    }

    function decimals() public view virtual returns (uint8) {
        return 18;
    }

    function totalSupply() public view virtual returns (uint256) {
        return _totalSupply;
    }

    function balanceOf(address account) public view virtual returns (uint256) {
        return _balances[account];
    }

    function transfer(address to, uint256 value) public virtual returns (bool) {
        address owner = _msgSender();
        _transfer(owner, to, value);
        return true;
    }

    function allowance(address owner, address spender) public view virtual returns (uint256) {
        return _allowances[owner][spender];
    }

    function approve(address spender, uint256 value) public virtual returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, value);
        return true;
    }

    function transferFrom(address from, address to, uint256 value) public virtual returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, value);
        _transfer(from, to, value);
        return true;
    }

    function _transfer(address from, address to, uint256 value) internal {
        if (from == address(0)) {
            revert ERC20InvalidSender(address(0));
        }
        if (to == address(0)) {
            revert ERC20InvalidReceiver(address(0));
        }
        _update(from, to, value);
    }

    function _update(address from, address to, uint256 value) internal virtual {
        if (from == address(0)) {
            _totalSupply += value;
        } else {
            uint256 fromBalance = _balances[from];
            if (fromBalance < value) {
                revert ERC20InsufficientBalance(from, fromBalance, value);
            }
            unchecked {
                _balances[from] = fromBalance - value;
            }
        }

        if (to == address(0)) {
            unchecked {
                _totalSupply -= value;
            }
        } else {
            unchecked {
                _balances[to] += value;
            }
        }

        emit Transfer(from, to, value);
    }

    function _mint(address account, uint256 value) internal {
        if (account == address(0)) {
            revert ERC20InvalidReceiver(address(0));
        }
        _update(address(0), account, value);
    }

    function _burn(address account, uint256 value) internal {
        if (account == address(0)) {
            revert ERC20InvalidSender(address(0));
        }
        _update(account, address(0), value);
    }

    function _approve(address owner, address spender, uint256 value) internal {
        _approve(owner, spender, value, true);
    }

    function _approve(address owner, address spender, uint256 value, bool emitEvent) internal virtual {
        if (owner == address(0)) {
            revert ERC20InvalidApprover(address(0));
        }
        if (spender == address(0)) {
            revert ERC20InvalidSpender(address(0));
        }
        _allowances[owner][spender] = value;
        if (emitEvent) {
            emit Approval(owner, spender, value);
        }
    }

    function _spendAllowance(address owner, address spender, uint256 value) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            if (currentAllowance < value) {
                revert ERC20InsufficientAllowance(spender, currentAllowance, value);
            }
            unchecked {
                _approve(owner, spender, currentAllowance - value, false);
            }
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)

pragma solidity ^0.8.20;

abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/draft-IERC6093.sol)
pragma solidity ^0.8.20;

interface IERC20Errors {

    error ERC20InsufficientBalance(address sender, uint256 balance, uint256 needed);
    error ERC20InvalidSender(address sender);
    error ERC20InvalidReceiver(address receiver);
    error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed);
    error ERC20InvalidApprover(address approver);
    error ERC20InvalidSpender(address spender);
}

interface IERC721Errors {

    error ERC721InvalidOwner(address owner);
    error ERC721NonexistentToken(uint256 tokenId);
    error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner);
    error ERC721InvalidSender(address sender);
    error ERC721InvalidReceiver(address receiver);
    error ERC721InsufficientApproval(address operator, uint256 tokenId);
    error ERC721InvalidApprover(address approver);
    error ERC721InvalidOperator(address operator);
}

interface IERC1155Errors {

    error ERC1155InsufficientBalance(address sender, uint256 balance, uint256 needed, uint256 tokenId);
    error ERC1155InvalidSender(address sender);
    error ERC1155InvalidReceiver(address receiver);
    error ERC1155MissingApprovalForAll(address operator, address owner);
    error ERC1155InvalidApprover(address approver);
    error ERC1155InvalidOperator(address operator);
    error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.20;

import "./IERC20.sol";

interface IERC20Metadata is IERC20 {
    
    function name() external view returns (string memory);

    function symbol() external view returns (string memory);

    function decimals() external view returns (uint8);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.20;

interface IERC20 {

    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed owner, address indexed spender, uint256 value);
    
    function totalSupply() external view returns (uint256);

    function balanceOf(address account) external view returns (uint256);

    function transfer(address to, uint256 value) external returns (bool);

    function allowance(address owner, address spender) external view returns (uint256);

    function approve(address spender, uint256 value) external returns (bool);

    function transferFrom(address from, address to, uint256 value) external returns (bool);
}