import type { ProvenanceBlock } from '../receipts/schema';
import type { ReceiptV2, ReceiptV3, ReviewerCascadeEvidence, WorkflowConfig } from './types';
type WorkflowSigningKeys = NonNullable<WorkflowConfig['signingKeys']>;
export interface WorkflowReceiptVerifyOptions {
    publicKeyHex?: string;
    allowedSignerPublicKeysHex?: string[];
}
export declare function canonicalJSONStringify(value: unknown): string;
export declare function sha256(input: string): string;
export declare function workflowReceiptId(prefix?: string): string;
export declare function signReceiptPayload(payload: unknown, signingKeys?: WorkflowSigningKeys): Promise<{
    signature: string;
    public_key_fingerprint: string;
    public_key_hex: string;
}>;
export declare function buildReceipt(args: {
    workflow_id: string | null;
    outcome_name: string;
    user_id: string;
    cost_usd: number;
    parent_receipt_id: string | null;
    chain_validation_hash: string | null;
    workflow_checkpoint_idx: number | null;
    workflow_total_spend_usd_to_date: number | null;
    is_checkpoint?: boolean;
    checkpoint_label?: string | null;
    reviewer_cascade?: ReviewerCascadeEvidence | null;
    receipt_type?: ReceiptV2['receipt_type'];
    cancelled_reason?: string | null;
    signingKeys?: WorkflowSigningKeys;
    receipt_id?: string;
    signed_at?: string;
}): Promise<ReceiptV2>;
export declare function buildReceiptV3(args: {
    workflow_id: string | null;
    outcome_name: string;
    user_id: string;
    cost_usd: number;
    parent_receipt_id: string | null;
    chain_validation_hash: string | null;
    workflow_checkpoint_idx: number | null;
    workflow_total_spend_usd_to_date: number | null;
    provenance: ProvenanceBlock;
    is_checkpoint?: boolean;
    checkpoint_label?: string | null;
    reviewer_cascade?: ReviewerCascadeEvidence | null;
    receipt_type?: ReceiptV2['receipt_type'];
    cancelled_reason?: string | null;
    signingKeys?: WorkflowSigningKeys;
    receipt_id?: string;
    signed_at?: string;
}): Promise<ReceiptV3>;
export declare function verifyAnyReceipt(receipt: ReceiptV2 | ReceiptV3, options?: WorkflowReceiptVerifyOptions): boolean;
export declare function verifyReceipt(receipt: ReceiptV2 | ReceiptV3, options?: WorkflowReceiptVerifyOptions): boolean;
export declare function roundUsd(value: number): number;
export {};
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