import { AttestationType } from './types.js';
import type { Attestation, PendingAttestation, BitcoinAttestation } from './types.js';
export declare const ATTESTATION_TAGS: {
    readonly PENDING: 0;
    readonly BITCOIN: 5;
    readonly LITECOIN: 6;
    readonly ETHEREUM: 48;
};
export declare const DEFAULT_CALENDARS: readonly ["https://alice.btc.calendar.opentimestamps.org", "https://bob.btc.calendar.opentimestamps.org", "https://finney.calendar.eternitywall.com", "https://btc.calendar.catallaxy.com"];
export declare function getAttestationName(attestationType: AttestationType): string;
export declare function isPendingAttestation(attestation: Attestation): attestation is PendingAttestation;
export declare function isBitcoinAttestation(attestation: Attestation): attestation is BitcoinAttestation;
export declare function hasConfirmedAttestation(attestations: Attestation[]): boolean;
export declare function getBitcoinAttestation(attestations: Attestation[]): BitcoinAttestation | undefined;
export declare function getPendingAttestations(attestations: Attestation[]): PendingAttestation[];
export declare function createPendingAttestation(calendarUrl: string): PendingAttestation;
export declare function createBitcoinAttestation(blockHeight: number): BitcoinAttestation;
export declare function parseBitcoinBlockHeight(payload: Uint8Array): number;
export declare function formatAttestation(attestation: Attestation): string;
export declare function validateAttestation(attestation: Attestation): void;
export declare function getEarliestBitcoinBlock(attestations: Attestation[]): number | undefined;
export declare function hasDefaultCalendar(attestations: Attestation[]): boolean;
//# sourceMappingURL=attestations.d.ts.map