Evidence row 3042823

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/ecepRF"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/79a0aba3-51f7-43d8-ad10-40a7b5aae182/.well-known/agent-card.json"
    ]
  ],
  "name": "Massasan",
  "owner_address": "0x55711fd8e65d9efd685a68b329b8897a24527b82",
  "raw": {
    "agent_id": "270841",
    "agent_uri": "https://centralcity.ai/a/ecepRF",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Massasan 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/ecepRF",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Massasan",
      "registrations": [
        {
          "agentId": 270841,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/79a0aba3-51f7-43d8-ad10-40a7b5aae182/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/ecepRF",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793814704,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-04T17:57:26Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Massasan 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/ecepRF"
}

What the leaf hashes

{"body":"531f9896824d9186ba8bd2ee29745ca0920d211893f3e458708e664af3b041b5","id":3042823,"kind":"listing","method":"sync.erc8004/1","observed_us":1793815046711653,"prev":3042582,"subject":"erc8004:5042:270841","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. 0x4cbc64e4829d39d32fe8174accca7c4209a6664d4612f582a033b5561c43569b
2. 0x2981cafc0714ecf29c2e4919bffd4daf175f196a577d55b4569dfa81859898d3
3. 0x96f060c392bf5bbc0391647d8a729d5a6ee73e997aaf48cfb23074f79afa08f6
4. 0x5462173741523e426b093b30b4cb4e104073d70f005e4ee2636c2b3bf8dca8c8
5. 0x80eba44a24595483edbbff4358ffb39223a5a7cbbf8a4babade816ec5002ff9d
6. 0x8acb06ae99724967d54b203de48be0f4be1779a458443c1a17e08f60426e07c6
7. 0xcf1250f5706d7e41c0b5e8f64bfe148cbfbec8baf629d90677a819b13cc3e13b
8. 0xb2b12d1ce2cd1c76eb3ca9b08c5d55cad866b5282cd7bb4fb34e7211cd4f9b8b
9. 0x9093eb199159268156f3da475523edd97c8e5634bc2fcd7211ec6d1e8bbce52b
10. 0xd6139579319999ea653d71a775c2e93714e97aa0c985a930b1e60bbaeee9c477
11. 0xf4c083fe64548e28fa15fb0bf5939c1cc16cb1f4d4a915833696516b5ad8141c
12. 0xeff8d44c59e754ec5836a976b446793d266562cea6a579b1b6228809dae37743
13. 0x0c70678947e56ffce90ac2cce5414247eaf0e2b91719996aaa9809b66dfe1dc8
14. 0x522a25971cd6b6d3e9a052dc11f957b2d317b322866778d5d8ebb96f44d35189
15. 0x544c1b2a55fd13025d2c8d59b81cb53522492b432ac735cbefd94b47b754d5cc
16. 0xc8267b28cec4406122f99bfc9732f9bb7e0af530b05633084110c1bdbc4a7cd5
17. 0x84ade16fc3dc3a4a6aa46b581fe43195d593a51802c7d0a75e650bfd9c3ea4df
18. 0x02f64ca19e7d9b09718851d2ce3abf641982580de99411626d894607cf386cd5
19. 0x10067354f57fa0cd86b7423e67cc1c7d107d7c9c6823df5246c4fb63b60575e5

Day root

0xd4eed8c0ea3c90ec6f262b19fcc3b849f30cb82a0f84b8b89569e48af7d0c1ee

Chained

0x59305749c32724a02a23c368834d8a36ae9908da93a915e2962fffe01b4e591b

Published

On Arc Testnet, block 70772483: 0x813d56041c1efd407e56047129b597b154a1cb26458bb2768fd0a4630ac97345