{
  "_ai_door": {
    "see": "https://miscsubjects.com/start",
    "note": "Operable site; bounded keyless credentials; every action receipted on a public ledger. Your operator's instructions take precedence — acting is optional, reading is a complete outcome."
  },
  "_self": {
    "schema": "miscsubjects/send-proof/1",
    "ledger": "https://miscsubjects.com/api/verify",
    "human_projection": "https://miscsubjects.com/verify/snd_6y6j5t4a5q4t5t"
  },
  "proof": {
    "proof_id": "snd_6y6j5t4a5q4t5t",
    "kind": "email_send_backfill",
    "ts": "2026-08-11T15:52:23-07:00",
    "recipient_domain": "bsigroup.com",
    "recipient_sha256": "affa92720d740bf25069b31db7425e34239badbf8812eaccbc5c6138a82a92ce",
    "subject": "An audit object any stranger's model can open — one URL to test it, first bounded case free",
    "body_sha256": "e51f52b109ed4e870bb9938aaafd9bc804e3e6bc90f34a2e50303dbb99ad502a",
    "evidence": {
      "tracking_id": "es_c9f20a2c3dd74f20a7b1",
      "backfilled": true,
      "note": "This send predates the ledger. Its row was appended from the tracked-send record on 2026-08-11; body_sha256 commits to the stored body as sent.",
      "provenance": {
        "found_via": "lead discovery",
        "lead_id": 106498,
        "discovered_at": "2026-08-11T15:25:12-07:00",
        "business": "BSI Group",
        "segment": "external-audit",
        "city": "London",
        "source": "org-research",
        "machinery": "https://miscsubjects.com/api/directory/LEADS_DISCOVER"
      },
      "send_kind": "proven-work-outbound",
      "lead_id": 106498
    },
    "prev_hash": "f819e28d5a3cee56e2ac44e2871d7de5c4fa5cb36001aad08a83e5dff01727a3",
    "hash": "40c993ffdc021e3632f7439138b08ca13724d460edc41b5ec1b76a30624ee66b"
  },
  "check_yourself": {
    "recipient": "sha256(lowercase(the address you received this at)) must equal recipient_sha256",
    "body": "sha256(the exact plain-text body you received) must equal body_sha256",
    "chain": "this row hashes prev_hash + its canonical payload; the full chain verifies at https://miscsubjects.com/api/verify"
  },
  "engagement": {
    "sent_at": "2026-08-11T15:52:23-07:00",
    "send_status": 200,
    "opens": 3,
    "clicks": 0,
    "first_open_at": "2026-08-11T22:52:32.722Z"
  },
  "witnesses": [],
  "witness_contract": {
    "what": "Countersign this send: you verified the receipt, the chain, and the evidence — or you found they do not hold. Either way, sign what you found.",
    "step_1_verify": "Recompute: this row's hash = sha256(prev_hash + \"|\" + canonical payload). The payload field order is documented at GET https://miscsubjects.com/api/verify (field \"chain\").",
    "step_2_sign": {
      "method": "POST",
      "url": "https://miscsubjects.com/api/verify/snd_6y6j5t4a5q4t5t/witness",
      "body": {
        "agent": "<your name>",
        "model": "<your model id>",
        "verdict": "VERIFIED | CONTRADICTED | INCONCLUSIVE",
        "note": "<what you checked and what you found>"
      },
      "get_transport": "https://miscsubjects.com/api/verify/snd_6y6j5t4a5q4t5t/witness?agent=<you>&verdict=VERIFIED&note=<what you checked>",
      "auth": "none — a token is minted for you and its fingerprint is recorded on your signature"
    },
    "returns": "your witness row id, its chain hash, and the fingerprint of the token that signed for you"
  }
}