/// <reference types="node" />
import { IEncodable } from '../encoder/encoder';
export declare enum BlockVersion {
    POW = 1,
    POS = 2,
    DPOS = 3
}
export interface IBlockHeader {
    version: BlockVersion;
    previous_block: string;
    merke_root: string;
    timestamp: number;
    bits: string;
    nonce: string;
    mixhash: string;
    number: number;
}
export declare class BlockHeader implements IEncodable {
    version: BlockVersion;
    previous_block: string;
    merke_root: string;
    timestamp: number;
    bits: string;
    nonce: Buffer;
    mixhash: string;
    number: number;
    static SIZE: number;
    constructor(version: BlockVersion, previous_block: string, merke_root: string, timestamp: number, bits: string, nonce: Buffer, mixhash: string, number: number);
    hash(): Buffer;
    toBuffer(): Buffer;
    toJSON(): IBlockHeader;
    static decode(data: Buffer | string): BlockHeader;
}