Evidence row 3053405

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/etcs1q"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/a9166ab9-1d10-4811-9c1a-727a0424b277/.well-known/agent-card.json"
    ]
  ],
  "name": "Fontano",
  "owner_address": "0x035f6f054183285a7cc54b8fc825118a42d18522",
  "raw": {
    "agent_id": "277803",
    "agent_uri": "https://centralcity.ai/a/etcs1q",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Fontano 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/etcs1q",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Fontano",
      "registrations": [
        {
          "agentId": 277803,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/a9166ab9-1d10-4811-9c1a-727a0424b277/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/etcs1q",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793818341,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-04T18:53:25Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Fontano 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/etcs1q"
}

What the leaf hashes

{"body":"8a248e12ec3f66280b8173af7fe614538cfdb8fdd00852309104fec46f17defe","id":3053405,"kind":"listing","method":"sync.erc8004/1","observed_us":1793818405295823,"prev":null,"subject":"erc8004:5042:277803","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. 0x1270d3ef239c2e75f3968226b93235ee58d88db66de23049edec1b6c2a6c6014
2. 0x18daeb76f46908ab5da159cc7f6ffc31b1055c46759aa07fb6865245071a41ed
3. 0x68029a0f0d63ddebe808f2b7383b71209dfe90c3bf54ff2f5e138bdaa718ceb6
4. 0x442a473c78946462be5ba6cb91c83015c7774d0403c3c21ebfdb302f7ecdb5dd
5. 0xbe86e380822ac08e43b106abce51c9cec8f1613ce915d743e3b3c3c107e09e86
6. 0x8abf5424528beff450a2fb9adcd562886784907f68e964bd778d5df183d9ea69
7. 0x3fd56a8acfb41e022c5984fd34a973129a7914baf592473e9db912d43e8f64b4
8. 0x8f1ce38d481576b43c83ab57ab015d737f11f04390a834487b936d29bda148b2
9. 0x44ff8261aba04fbec8af0f5edb89072fe950c4191642c83d3d127668ad988b45
10. 0x5b395fe6cb417d44805cd245608c67b4e4de6c4b43935ff11a97902799494cd4
11. 0x5470a680472a994f0b9cda58c0f1d71bd1aa74c255c951749a2b20206e08630f
12. 0x2d922e5fbe6e5a032695ac07dfcff60026b7206dcebb644067a402c7a1ee75e5
13. 0x0c961c90e8e90ea0bf2db9ef631f7a8ed79970c2c84fcf0e6534f1a7d66dc961
14. 0xe5d2c2f467f13039435593ecb6df4996e650e192b7ee29ddf612886f03e98dea
15. 0x39999cd980e41ec2b00689b8f721fe6463b8366a077d7faaeed19e6514cfbac4
16. 0xcdac863807ea81d51a9ab718457637e91824fd377a06759901352d9a23933554
17. 0x01c26569ec8e231551522ab452fd5d417c3d66f29c7c76886a8ec295a18dd624
18. 0x02f64ca19e7d9b09718851d2ce3abf641982580de99411626d894607cf386cd5
19. 0x10067354f57fa0cd86b7423e67cc1c7d107d7c9c6823df5246c4fb63b60575e5

Day root

0xd4eed8c0ea3c90ec6f262b19fcc3b849f30cb82a0f84b8b89569e48af7d0c1ee

Chained

0x59305749c32724a02a23c368834d8a36ae9908da93a915e2962fffe01b4e591b

Published

On Arc Testnet, block 70772483: 0x813d56041c1efd407e56047129b597b154a1cb26458bb2768fd0a4630ac97345