You might support cryptographically signing WARC archives; Wayback is particular about archive provenance and integrity, for example.
https://www.loc.gov/preservation/digital/formats/fdd/fdd0005... ("CDX Internet Archive Index File")
https://www.loc.gov/preservation/digital/formats/fdd/fdd0002... ("WARC, Web ARChive file format")
https://github.com/internetarchive/wayback/tree/master/wayba... ("Wayback CDX Server API - BETA")