Zanii proof

Receipt sha256:aff2930071d1b38d532cef1fcf84435b8493e555fae265fabf60043a68645038 — leaf #4248

Verification PROVEN

✔Receipt signature, delegation chain, and scope — signed by did:key:z6MkksYZxAX4EpiA…

✔Delegation not revoked

✔Merkle inclusion proof against current tree root

✔Signed tree head signature — log did:key:z6Mkt3UL3dCEigCh…

Anchoring

✔Covered by anchor at tree size 4353 — zanii:34fcb38c67663e785816996c5a2fec034dbdf3dcf0be246a0670d36330b59eb1 (block 21693)

Receipt

{
  "v": 1,
  "ts": "2026-08-16T02:00:37.685Z",
  "sig": "ed25519:cd204ba28e29aee5e2834ec537082451147fbdabcb8d48437a2da094bea9fe0f96c9c90b0cc62c5f901fe4139c384a97a4760f5507a14a7c4abfb8f1740efc01",
  "prev": "sha256:3ff38961280a0cc63ceb6e7864fe27be5ac473322658bcfbc377eae8aaccfdc7",
  "action": "tool_call",
  "target": "ads.investigate.evidence",
  "agent_id": "did:key:z6MkksYZxAX4EpiAetcDB3uN9w1FY7LjriS966ZPCTMtCzXt",
  "delegation": [
    {
      "v": 1,
      "exp": "2027-07-06T21:17:24Z",
      "sig": "ed25519:d7ddef78324cfcbfe417611c4f135cbbcc2858ea076ddf7d8a0c41c6edc0c9aab906fc175bd92614c54d9ba76891a94941a7b9d7fa560be9c1588755c962bc08",
      "issuer": "did:key:z6MksQZm73wT4p97GUjdKC4SJxgsm8dzizoLCBE8U2QRRZBb",
      "scopes": [
        "ads.investigate.*"
      ],
      "subject": "did:key:z6MkksYZxAX4EpiAetcDB3uN9w1FY7LjriS966ZPCTMtCzXt"
    }
  ],
  "subject_tag": "sha256:51e5d015a51da3d46d7f5f5ea126970d229e7297aef867b87096085ffc33e42d",
  "payload_hash": "sha256:00c11cbbd51c13d3fc2060a4459b2073852919279b55fd83481459afff28975e"
}

Inclusion proof

{
  "index": 4248,
  "tree_size": 4353,
  "path": [
    "bd6a780c965c68bb3bddcbf61bb880309f987d60bede12aac238a8c0e4b90555",
    "dfa8ceeb11f6fffb55d66459ca4b924083130171078f8993d94a6499f28bbe70",
    "1f16d2f8bb756a4d90c8efb9af17ee9afd2a4e6b6e8fb5decb5acff6b730a5a1",
    "f16774293f6b57e7956af5d1dccf64e4a3ffc19024337b314d2813a2fc91beef",
    "7a7245e67632001c64635e6017e8a1d55953b60b64c56afdfd45e656a2d5fee3",
    "b59b3cf04e1f82aeed7fdb071e0aed06489645934569e6ccdfbd2c582fa97565",
    "7f279ba5b64d591b784cc3675db1496321d03dbbb9ee2124588e47ae3e81ba91",
    "c637f01862845285c6d3a433e3799ef91188a736c1c784c922ba56446a52c75b",
    "cc6be04373f43c05afaab5f1bb350502d06cff2a9eadd5803cfc41464f822b04",
    "c3310bbc7505d7ab6534f5142146d3f686b80a369526056f43a3c77e2dc4240a"
  ]
}

Signed tree head

{
  "v": 1,
  "log_id": "did:key:z6Mkt3UL3dCEigChGEJKSdhSra7JRoG2z1GLtbrLCKnL5GX2",
  "size": 4353,
  "root": "sha256:9b710a4755e52983ef28d15ee7b32ff5cb0e058cf326c9999c89bf56cecb783c",
  "ts": "2026-08-17T12:27:03.616Z",
  "sig": "ed25519:37f5cfda95d436500d988bcd127999cb5983bf6322a789892b38636a2ba0c6b30f9ac839494df88535dcc6a48baa869674799f1d906e38e72a107586da25530a"
}

Verify independently

curl {this host}/v1/proof/sha256:aff2930071d1b38d532cef1fcf84435b8493e555fae265fabf60043a68645038

Anyone can re-verify with the zanii SDK (Python or TypeScript): receipt signature → delegation chain → scope → Merkle inclusion → STH signature. No trust in this server required.

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