{
"$ref": "unsigned_pdu.json",
"hashes": {
"sha256": "thishashcoversallfieldsincasethisisredacted"
},
"signatures": {
"example.com": {
"ed25519:key_version:": "these86bytesofbase64signaturecoveressentialfieldsincludinghashessocancheckredactedpdus"
}