Evidence row 2499577

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/sf8c3m"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/54fd0d02-7650-4b87-b216-413dcb836f18/.well-known/agent-card.json"
    ]
  ],
  "name": "Febon",
  "owner_address": "0x292a94c8b95cb7fb55e6aa36d34b804b579bcaba",
  "raw": {
    "agent_id": "148620",
    "agent_uri": "https://centralcity.ai/a/sf8c3m",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Febon 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/sf8c3m",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Febon",
      "registrations": [
        {
          "agentId": 148620,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/54fd0d02-7650-4b87-b216-413dcb836f18/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/sf8c3m",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793669930,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-03T01:40:04Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Febon 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/sf8c3m"
}

What the leaf hashes

{"body":"550ce892a2272e3d70ca3f5578b79d874c66b6f60fa65c28a9ca63b2d171bcdd","id":2499577,"kind":"listing","method":"sync.erc8004/1","observed_us":1793670004027646,"prev":null,"subject":"erc8004:5042:148620","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-03 (425475 rows).

1. 0xc0e3799863ebf6f1897625c661fd2f80acc24ddb91b8d3b849193813c51589b4
2. 0x96ad8400f103a58e7de9e2615d9f669f011268bb1b900221d7b9b199359c40e4
3. 0x131cba2c42049f8b6a89d0819ccd2f89d658d548a0325a34e69f185e3591ff3f
4. 0x758f5dc76eff59db60302a4e77495db1930abbc9a546cc517129b77447d4d651
5. 0x03d43c8cc6f3712b55bd77de65f4855940ec114da81df0e35093e3acd657b6ce
6. 0xa64ab72aa0285c58f31cdceb814020c3e7ed0e63538977bff236873e9600fd2d
7. 0x3b3faada3b0098b49d6e2e72a9eadb2894a8a7e8394e9d6b31abdd1567c0764b
8. 0xebe1237ae332cbba9070bf71355d2431afbde7329ffdaa3be38070d15717ea04
9. 0x247c4b5acdfb788a3277bc7c0c5c12b5a1e54e2b37e330a91c0ef9083e79122d
10. 0xf552662bbce7f7cd382b6edf3e53f359a7ee50a5a00867a894b54d72eb485cca
11. 0x98abe34e2e8b536ad03e9ad8f2f8d5343cbe60fa760e7956c2d9a50cbe065fc6
12. 0x03bba5c0f32b920d76af8de61973ae17bf02688ef02b94e203278f2dc44c0b0d
13. 0x5725fec26fdf9c4b3be2c1880ae1736a4d7fa0eeac79438dd7580b5eaa289599
14. 0x1d666a17ae41c2931b0c5276dc8bd8c2adf9827a61eb629d06ca3a33ee6a051a
15. 0xfeca812d56a4bb476433459149c92fcd8a270bdbf2bbbce1949fb4bf7848f5ed
16. 0xf8c1a0cdf4ba2eb105bc3e83d2f2b121cab4a34fb5a3846fa592909906f7fdaa
17. 0x39dab39081985bbfffe23b080399a9d1a9cb9c2c8960102350c4212113cb2cba
18. 0xac5402954216dc6c7020a6405675c8fc3b0828c2ab02943d80de52677a2f1fc3
19. 0x85f3a27c16056a361d9ba33355a575ca7123f86de901b204c88953c4b8ea441a

Day root

0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a

Chained

0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43

Published

On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7