Zanii proof

Receipt sha256:c9363329d68cf3d64bbc6a776b4429a2e80e3f17ec73181ea4feccb03f569736: leaf #99085

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 104846 - evm:782450cadd6bd9bd0a1c694df8683b9880ca52746f58afb872a3c6cb6478c5bf (block 52890292)

Receipt

{
  "v": 1,
  "ts": "2026-10-15T02:00:14.565Z",
  "sig": "ed25519:18b698a70e9fcbdef80f33cf824293e833ead4eb84dac3242a5ade028008cf41cdb22faba99459a2dee7b233c0f306ff623d92ec9a32c108611c315de4030606",
  "prev": "sha256:e928da3349b6d54bce68857b7afa307a7b90e8f93ab117f9885e69a487c22f65",
  "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:e6cecbc80147e37d7844b7e5aa6c423b76e9fc8a9267a237b146009950cfd11f"
}

Inclusion proof

{
  "index": 99085,
  "tree_size": 104846,
  "path": [
    "8255481f0e18b7af69497023b33af4a38bdf16185736a818d31f4e6f98e719e6",
    "6a0e5b2c359703f9387d799ff279e139643c61adf61a552278903e7c02557092",
    "3f6b1cf531859438839c9c28f7c96cb9c30317a655132dc1af563ddb46f2ad26",
    "3d4a1f75327726becbf12640e90c0e6e2dc540142bd16689ff5bb4edd0f9f972",
    "526877320b5b74604e7a608046649fa8c2aac3e057ec7ce5d5c11a1234b71b06",
    "8a320213318687c7f418efd184605d5641b3c1eb216f89b694b415fd9e9ba325",
    "e304bcb6aaba976e5e313a3c5b871e8b2fe82abfa14a809d48bae795f20de687",
    "48e6cdcdadb7dc37be791ea445f82b7d75e575057ee16ef01bdb65bc0460d4da",
    "d7c75767c8b2607dabb78c2baa3751569ef87d7428fc0bf943bd3c64ec44c830",
    "573b43f862e0dbf2842cbc4615d0279d85a5f7740496ecc5cde4a9bc7241075b",
    "6c10d2c5dbbbfb6690d4277ba674061d68380c0225e4162344adeef0700bc0b1",
    "9a7ecb69945548cd0f6f44b4b9c028bef7103266589bc5a785130bbbf0231c51",
    "e9cf9f5ed6000bec0029fbef127d02741c829d43f8e421a332b2e87183ba9f09",
    "fd678340cc628cce1732760f331367d13983acb3b9527785093492f3b252bdbc",
    "8020aa09974c3f22cea8196343549f776a6cd9f507527ac5081d3ed88bfe0069"
  ]
}

Signed tree head

{
  "v": 1,
  "log_id": "did:key:z6Mkt3UL3dCEigChGEJKSdhSra7JRoG2z1GLtbrLCKnL5GX2",
  "size": 104846,
  "root": "sha256:4a014ad5c84edf51957081a51f4212730e25e71056a0cf5d536dd0ab69cabf7e",
  "ts": "2026-10-21T08:06:36.196Z",
  "sig": "ed25519:8d5f593edc47c18413a3e19810424a1c2b2df403e525c3be6aa7fe43e0302d9415c269752f8e6738037fce6ab9b299a9970c3a31a32cbecb7a28dc10c1b64901"
}

Verify independently

curl {this host}/v1/proof/sha256:c9363329d68cf3d64bbc6a776b4429a2e80e3f17ec73181ea4feccb03f569736

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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