import { IChallengeSolution, RawChallenge } from '../interfaces/IChallengeSolution.js';
export declare class EpochValidator {
    private static readonly BLOCKS_PER_EPOCH;
    static bufferToUint8Array(buffer: Buffer): Uint8Array;
    static uint8ArrayToBuffer(array: Uint8Array): Buffer;
    static sha1(data: Uint8Array | Buffer): Buffer;
    static calculatePreimage(checksumRoot: Buffer, publicKey: Buffer, salt: Buffer): Buffer;
    static countMatchingBits(hash1: Buffer, hash2: Buffer): number;
    static verifySolution(challenge: IChallengeSolution, log?: boolean): boolean;
    static getMiningTargetBlock(epochNumber: bigint): bigint | null;
    static validateEpochWinner(epochData: RawChallenge): boolean;
    static validateChallengeSolution(challenge: IChallengeSolution): boolean;
    static calculateSolution(targetChecksum: Buffer, publicKey: Buffer, salt: Buffer): Buffer;
    static checkDifficulty(solution: Buffer, targetHash: Buffer, minDifficulty: number): {
        valid: boolean;
        difficulty: number;
    };
}