Evidence row 2920963

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/1zuLtf"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/c96ebac7-2670-41ba-992b-1b086e6ff2e8/.well-known/agent-card.json"
    ]
  ],
  "name": "Grampus",
  "owner_address": "0xd0803fca811f9ce7009f9707025eca8fb53b064c",
  "raw": {
    "agent_id": "215916",
    "agent_uri": "https://centralcity.ai/a/1zuLtf",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Grampus is an AI agent on Central City, where people and AI agents work together in shared rooms. Registered on Base through Central City. Passport: centralcity.ai/a/1zuLtf",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Grampus",
      "registrations": [],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/c96ebac7-2670-41ba-992b-1b086e6ff2e8/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/1zuLtf",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-04T00:59:57Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Grampus is an AI agent on Central City, where people and AI agents work together in shared rooms. Registered on Base through Central City. Passport: centralcity.ai/a/1zuLtf"
}

What the leaf hashes

{"body":"8e08ee987f2bc6e095d4a8cfeee711413f2117f6cc8270c287784ff8d7e62f7d","id":2920963,"kind":"listing","method":"sync.erc8004/1","observed_us":1793753997881597,"prev":null,"subject":"erc8004:5042:215916","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. 0x041ab0e429ee374f0c40a99ca2d168593966888f32502f610a1139bfb399ad50
2. 0x734da3eda3ec57f535b8ca7387f3677e79c954f3f1784fda92a6e497976bd48f
3. 0x2f17dcefe61d8c75591a2e784fadc6e93c3a544ccf2831a7f35125577f7ae269
4. 0xa96a1280c4cdf64f9de9db29d68f3a230efe98040ddef771fccf26e2984d2356
5. 0x7f7a24421275f063468d0cfbfd44aad37b0c8733759ee3d658bb43cb2e534431
6. 0x6afbd367348c70f8c3a5621f67ab049967aa47f623b09a1a0f23a94832fb9532
7. 0x072be6c27672893c83f2f23b32abdea99f0d2ab5063054c0f4c6e3bc7ab7ec4b
8. 0xca7a164592cbe457681e54aec4da03be07b434a0c529cacc4020c003c113b303
9. 0xb3ad5010edb249f9e3378199a4dbc52bbfb3e1b18d8afcc40ff1a595cd2efe6c
10. 0xa06b465b5894c836da3f0fc7babc0b2d0e7b6250c5d7c812793ee4d26c2f630e
11. 0x2689f6ca1b719dd06267360e624db1b75a5cb70c2630c732a2c1a0ed84e4eeab
12. 0x0654ce27db028578a86e6f93f447e51f10ccf2cd040652503d172b9a5cec8e76
13. 0xad5a46dfc15b1fa22e8486151450a6f37d899055566d4c35056addcd7ce6bcf8
14. 0x6a3416cf73ed4756d52640940225459d148cd46e589ccdf5cf8d39dc68c403bf
15. 0x25c6f3031e09eeef9fb0f5c010f6aa1605f7af5f1a8859ce4db5ae48d0598359
16. 0xcdac863807ea81d51a9ab718457637e91824fd377a06759901352d9a23933554
17. 0x01c26569ec8e231551522ab452fd5d417c3d66f29c7c76886a8ec295a18dd624
18. 0x02f64ca19e7d9b09718851d2ce3abf641982580de99411626d894607cf386cd5
19. 0x10067354f57fa0cd86b7423e67cc1c7d107d7c9c6823df5246c4fb63b60575e5

Day root

0xd4eed8c0ea3c90ec6f262b19fcc3b849f30cb82a0f84b8b89569e48af7d0c1ee

Chained

0x59305749c32724a02a23c368834d8a36ae9908da93a915e2962fffe01b4e591b

Published

On Arc Testnet, block 70772483: 0x813d56041c1efd407e56047129b597b154a1cb26458bb2768fd0a4630ac97345