{
    "$ref": "unsigned_pdu_base.json",
    "hashes": {
        "sha256": "thishashcoversallfieldsincasethisisredacted"
    },
    "signatures": {
        "example.com": {
            "ed25519:key_version:": "these86bytesofbase64signaturecoveressentialfieldsincludinghashessocancheckredactedpdus"
        }
    },
    "auth_events": [
        "$urlsafe_base64_encoded_eventid",
        "$a-different-event-id"
    ],
    "prev_events": [
        "$urlsafe_base64_encoded_eventid",
        "$a-different-event-id"
    ]
}