import { BlockTemplate, BlockTemplateTx } from '../types/block';
export interface MiningCandidate {
    header: Uint8Array;
    coinbaseTxHex: string;
    transactionHexes: string[];
    merkleRoot: string;
    target: string;
    height: number;
}
export interface WorkItem {
    data: string;
    target: string;
    midstate?: string;
}
export declare function parsePriority(tx: BlockTemplateTx): number;
export declare function sortByPriority(transactions: BlockTemplateTx[]): BlockTemplateTx[];
export declare function sortByFee(transactions: BlockTemplateTx[]): BlockTemplateTx[];
export declare function sortByFeePerKb(transactions: BlockTemplateTx[]): BlockTemplateTx[];
export declare function selectTransactions(template: BlockTemplate, strategy?: 'priority' | 'fee' | 'mixed', maxSigOps?: number, maxSize?: number): BlockTemplateTx[];
export declare function buildCoinbaseTx(blockHeight: number, reward: bigint, toAddress: string, extraNonce?: number, coinbaseMessage?: string): string;
export declare function buildBlockHeader(version: number, prevHash: string, merkleRoot: string, time: number, bits: number, nonce: number): Uint8Array;
export declare function setYespowerImplementation(impl: (header80: Uint8Array) => Uint8Array): void;
export declare function computeBlockHash(header80: Uint8Array): string;
export declare function verifyBlockHash(header80: Uint8Array, targetHex: string): boolean;
export declare function difficultyToTarget(difficulty: number): string;
export declare function targetToDifficulty(targetHex: string): number;
export declare function nbitsToTarget(nbits: number): string;
export declare function estimateHashrate(blocksFound: number, difficulty: number, timeSeconds: number): number;
export declare function calculateBlockReward(height: number): bigint;
export declare function prepareMiningCandidate(template: BlockTemplate, minerAddress: string, extraNonce?: number): MiningCandidate;
export declare function serializeBlock(candidate: MiningCandidate, nonce: number): string;
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