import type { ReceiptSignatureV1, ReceiptSignerV1, ReceiptV1 } from './types.js';
export declare const RECEIPT_ID_TAG: 'APS-RECEIPT-ID-V1';
export declare const RECEIPT_SIG_TAG: 'APS-RECEIPT-SIG-V1';
export declare function isExactUtcMilliseconds(value: string): boolean;
export declare function receiptIdPayloadV1(receipt: ReceiptV1): string;
export declare function computeReceiptIdV1(receipt: ReceiptV1): string;
export declare function receiptSignaturePayloadV1(receipt: ReceiptV1, descriptor: Omit<ReceiptSignatureV1, 'value'>): string;
export declare function validateReceiptV1(receipt: ReceiptV1, requireValues?: boolean): void;
export declare function createReceiptV1(fields: Omit<ReceiptV1, 'receipt_id' | 'signatures'>, signers: ReceiptSignerV1[]): ReceiptV1;
export interface ReceiptVerificationV1 {
    valid: boolean;
    receipt_id_valid: boolean;
    signature_results: {
        signer: string;
        key_id: string;
        valid: boolean;
        reason?: string;
    }[];
    errors: string[];
}
export declare function verifyReceiptV1(receipt: ReceiptV1, resolveKey: (signer: string, keyId: string, issuedAt: string) => string | undefined): ReceiptVerificationV1;
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