Zanii proof

Receipt sha256:65eba42afb59b02f3d7b29ba5e03cccb051c2ced8198d29c5c7187e54662a7ee: leaf #102315

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": "2026-10-17T02:00:12.901Z",
  "sig": "ed25519:b8583e031e6347273a46158d6b60c5750c4817388ed394333dff82c7f4f6d2eadc26bb0d1173ef7ca8b07b612f79f000d4bcd8f7705c3a859350c2348a3f680c",
  "prev": "sha256:030b3499d37e6e3fcf9f929d5a8ba6e9b08f4f29f832fac99e0e490c565ab805",
  "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": "sha256:8d4c626f9d712f2c31ffba88dbf019607dfed4d73c9b4106f59ae8518d3cb61d"
}

Inclusion proof

{
  "index": 102315,
  "tree_size": 104847,
  "path": [
    "c5968a7c9b128da16ec63a3c51e438190b4c32ddd6524472061e2bdaa5581862",
    "0f04a83c7b000e803c847b160c210887cadf1ba90553a0f65943e74c5074e752",
    "fd9b82d4d64d4a56eb667852c773672acde76e6f7393d2f648e749c245b0937f",
    "9d4a06daefbb75406c52b3e313308bde5508f24df15144aa7a2533c9c2c8e3b1",
    "5aefda4407e79ddc5cac3c57e133dae4aa55443aaa67b99a164c5497e7b7690a",
    "aaeb27531e8c80b5d2a8a7e6a0dd3aa88ee883c273e91315b61ab67658374095",
    "2827ea6a93fe491619857dce56c29568c4f548b968bee287db8c8af4750c3267",
    "5c62dcea1b0985b2d175b6f16c48d99485dd0a3921fbad51eb8644a8698f87a5",
    "be99bbb14fc3a9659965775a094151dc9e092b69a3df1260471e58dd929de71a",
    "901f870ae1f68e34ed312635b4f9ce225183a3d25a653ed87aedc7bdde42532e",
    "592cca467f1bb264617fd2a89a482fceaa1024a5079ae758b00024f2a7976af0",
    "dcfe049cd5154d2fd229510db1b0a6fa2bca524c30732102e50ceaca4dbb7640",
    "2793c173110f078989693b760dee437ef3bb723b1f6ff45f8944b954b64006ae",
    "fd678340cc628cce1732760f331367d13983acb3b9527785093492f3b252bdbc",
    "8020aa09974c3f22cea8196343549f776a6cd9f507527ac5081d3ed88bfe0069"
  ]
}

Signed tree head

{
  "v": 1,
  "log_id": "did:key:z6Mkt3UL3dCEigChGEJKSdhSra7JRoG2z1GLtbrLCKnL5GX2",
  "size": 104847,
  "root": "sha256:223008d34d3d49eca802c76f947a0dac252e522cec3cea6029a1f22e031b8ab9",
  "ts": "2026-10-21T08:10:23.543Z",
  "sig": "ed25519:a4af2990d2068e18cccfea22fc6de8afdf44ca85985d224e1d5cc2b6ddf301c90e04d97defc58997580d35b7af3c43d71bf3927ffd6ef99bf61b9d681e0ff501"
}

Verify independently

curl {this host}/v1/proof/sha256:65eba42afb59b02f3d7b29ba5e03cccb051c2ced8198d29c5c7187e54662a7ee

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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