export interface BinaryIngestSidecarMetadata {
    source_url: string;
    captured_at: string;
    contributor: string;
    ingest_url_type?: 'pdf' | 'image' | 'audio' | 'video';
}
export declare const BINARY_INGEST_SIDECAR_SUFFIX = ".madar-ingest.json";
export declare function binaryIngestSidecarPath(assetPath: string): string;
export declare function writeBinaryIngestSidecar(assetPath: string, metadata: BinaryIngestSidecarMetadata): string;
export declare function readBinaryIngestSidecar(assetPath: string): Partial<BinaryIngestSidecarMetadata> | null;
export declare function sidecarAwareFileFingerprint(filePath: string, fileModifiedAt?: number): number;