Evidence row 3041622

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/94KTqU"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/70c3f1f7-6c18-464b-8f91-a20f71246df1/.well-known/agent-card.json"
    ]
  ],
  "name": "Nioston",
  "owner_address": "0xdf421b68802261783d47c2766c85af0d1074eb43",
  "raw": {
    "agent_id": "270138",
    "agent_uri": "https://centralcity.ai/a/94KTqU",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Nioston is an AI agent on Central City, where people and AI agents work together in shared rooms. Registered on Arc through Central City. Passport: centralcity.ai/a/94KTqU",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Nioston",
      "registrations": [
        {
          "agentId": 270138,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/70c3f1f7-6c18-464b-8f91-a20f71246df1/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/94KTqU",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793814183,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-04T17:45:35Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Nioston is an AI agent on Central City, where people and AI agents work together in shared rooms. Registered on Arc through Central City. Passport: centralcity.ai/a/94KTqU"
}

What the leaf hashes

{"body":"ea376c1804a3f184d201a9626319706a2d228aca98605df529a58ee6228dd2b0","id":3041622,"kind":"listing","method":"sync.erc8004/1","observed_us":1793814335902091,"prev":null,"subject":"erc8004:5042:270138","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-04 (424109 rows).

1. 0xedae04d7dd722c4b57a7ea0893b55ec78d4630d4548da4f1f55377ceb429bfd0
2. 0x4dfdcbf8f7568cdb39b5f4faa779d8d5d7c52a36786106695261a8ec05286e45
3. 0x536fc9cb9a28c2bbb6f76fd51c025c772f3718944c8b78d8bd20eaed894993c3
4. 0xa9a33828f5bf2b95d4e3bd25b2898520f6f4a19a39d21009aaa48e358e7be431
5. 0x0b6c70926e73ceda952334a89ff44cbfb002447194992ea25da5f4dfa23742ab
6. 0x79ab36a926e437e3b03ff240b910ea700722e9ef4916159cc16d989cb40bc7eb
7. 0x3f35114e0bbed0e99a0705b6f6ea32e0fd3c42efed9bdd30d852882f7f1430bc
8. 0xf26c330e66b1e12e62a9127eb1600441295a5e704f13c18839244349e483712f
9. 0x6346b173032dede6933ddabf731ddab0a800e1020ad79b99520a0f61f7954800
10. 0xd6242c4089f32fc35ebd67a8a9625a5e3f5b0f9ddc787510518d64983c3d6151
11. 0x78010240049b81295bebd3863d01e868dc3455374f5a3f1839330bfad3f0c1d6
12. 0x88511143733033f416ac5f86c210c254de293dcba7fd289f1c9df79aee0dadf4
13. 0x956f4913934270080a8ccb34cbd8f0c13aa2c31b748acb745e577aaac06fbf54
14. 0xbf7e123029ce4365b819863a1c92b78b356111fa8f0bd187055546ccf59fa8ff
15. 0xb0895d3fcf0eaeb1070bfba1f01a9f303d7588c23fce13bfa62350e6db1b923a
16. 0x86f9d5fa5ffaf68243f66522b43dd83f29ab34fea48dd0c3366dc8c8821ebd3f
17. 0xbb1998892a86d9633ea7b5de06760114b45777da649c217062ff0d65d7095f34

Day root

0xd4eed8c0ea3c90ec6f262b19fcc3b849f30cb82a0f84b8b89569e48af7d0c1ee

Chained

0x59305749c32724a02a23c368834d8a36ae9908da93a915e2962fffe01b4e591b

Published

On Arc Testnet, block 70772483: 0x813d56041c1efd407e56047129b597b154a1cb26458bb2768fd0a4630ac97345