Evidence row 3055703

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/8OWBfu"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/f7b5008f-cb8f-490d-a50e-0cf2ac376b7c/.well-known/agent-card.json"
    ]
  ],
  "name": "Histolla",
  "owner_address": "0xaeefce16b50fdc42c03f520bfa9a0a4cabd04673",
  "raw": {
    "agent_id": "279508",
    "agent_uri": "https://centralcity.ai/a/8OWBfu",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Histolla 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/8OWBfu",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Histolla",
      "registrations": [
        {
          "agentId": 279508,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/f7b5008f-cb8f-490d-a50e-0cf2ac376b7c/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/8OWBfu",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793819144,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-04T19:12:43Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Histolla 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/8OWBfu"
}

What the leaf hashes

{"body":"88db3fb46d45aefba3ca4369569682cc86fa37eafc7a6cac72b7299c5a8d121f","id":3055703,"kind":"listing","method":"sync.erc8004/1","observed_us":1793819563190392,"prev":3055517,"subject":"erc8004:5042:279508","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. 0xebbcaf0d1e03d148b453b4a7c4eec0668d6ed6febe99283dd65a52bb65153e8a
2. 0x2c8c865f868dceb9ae885bc3739ec12938504bef1bf9dfd1a0c10f7f92a5dcc5
3. 0xf569e07fe8e5ab7a4e812a017e3a8b802936b99fe9f6ed9817d1e282d58bf5e6
4. 0x58bd6129f16edc3015bebf3f6e67d91a1cc915f2be6185c1e33dc2117a618d03
5. 0x8e276cfb288c80827a00d172bfa00fbfe13886aacbf83960ffc83b47df8db2d3
6. 0x0f3069f4b83897529b3c143109b79cef069a13ee690b6614af44a66f50c1532b
7. 0xa2355694bcc4caf243683f4d267cbfd5411dc7eaec5dab8f17440fbeb06ad347
8. 0x6566404f8fdda2a15aee4311eae99ba44c01ae740e7881ccd455976faa40335a
9. 0x8b6771abe72f6e132cfb3698209aa992642cdac23fa8ff0d8be30a533aa683b2
10. 0xb3f33c0d547c6c502616540dfd60b1443639f16f8a6ee439616f63908e9b6cea
11. 0xd2cead0cc6b7cda92d9d5a4b262844ea6568bad5b8cbafc17b96c1f20b0c62eb
12. 0x72a45bd3f6daca2190a821fb4e81f855569c73ea87509c91a28857c7dc930890
13. 0x782a1a2f3f0878eb1c92753b629d96a12f74b891501cfbf8088a58996315342c
14. 0x720853aef9bb54958fccfafa52cacf2b40b59e996a29e903a7d00c64b308933e
15. 0xacfc95cc63f2205f2e42294ed36a317ab746c06b12feb3c243315356ad95b62a
16. 0x621f050d36e1026696df95e35f6767fff738c18d7486aa88506e941d484ebef3
17. 0x7efb735f8d49bcac59a20b148718d382f32a05352c0255ebbd501ca73055453d
18. 0x9c1c771179da4a002386557e8601b2d4983c3e366808477ee20da18c282c1dd8
19. 0xbb1998892a86d9633ea7b5de06760114b45777da649c217062ff0d65d7095f34

Day root

0xd4eed8c0ea3c90ec6f262b19fcc3b849f30cb82a0f84b8b89569e48af7d0c1ee

Chained

0x59305749c32724a02a23c368834d8a36ae9908da93a915e2962fffe01b4e591b

Published

On Arc Testnet, block 70772483: 0x813d56041c1efd407e56047129b597b154a1cb26458bb2768fd0a4630ac97345