Evidence row 3019628

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/Po2Xxv"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/4fd65975-9f22-43a7-ac5e-09cf28b26b99/.well-known/agent-card.json"
    ]
  ],
  "name": "Guston",
  "owner_address": "0xd7ebde8a406ef9773c76b33da5418b3ad35172b5",
  "raw": {
    "agent_id": "255281",
    "agent_uri": "https://centralcity.ai/a/Po2Xxv",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Guston 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/Po2Xxv",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Guston",
      "registrations": [],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/4fd65975-9f22-43a7-ac5e-09cf28b26b99/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/Po2Xxv",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-04T14:58:13Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Guston 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/Po2Xxv"
}

What the leaf hashes

{"body":"3c4f08576611c1bbf9f6fe90c38e3e636805af1abd10c7d755e00bee7b721ac6","id":3019628,"kind":"listing","method":"sync.erc8004/1","observed_us":1793804293563085,"prev":null,"subject":"erc8004:5042:255281","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. 0xffa84ca3dc67eef84d5febdaedb3bfdef56f89fb7b50e07e8dfc0a3a36c10c4f
2. 0xbef904a5d9dc75983b1f30dd9ba1298d93c4ff1375ed26365545e0d41d7c96dd
3. 0xd03c5f2a67a1e569a57e7e9d66e8669304b5ef10c7cae09d85a29e9c9a006ee1
4. 0xba88ef38ef501b2bd188a7cc578d25a355f9c317f501efc3b535e703f1ca16eb
5. 0xd249241824fd8fda6a44c714099c174a5a3c8ca82f6f066fa1630469451f9fff
6. 0x33bb6de4ce664136d92716c6158abd8178acf988aa3dcabcc27bc6192c9527d6
7. 0xa7c3ab2396644bf94cc964a58e813c83390c0c0753f5e912457e790881282e86
8. 0xdddddb14323534ce610e82b0957ecdb3354ec665a6a2fd4793f7762009168968
9. 0x86e59fb27ea8fd85057fe98b9a4b747d71125e3b38df5aef7f439ef9dce848d5
10. 0x357376c16c1968bd47bb6ac7c21bc8d3a4e5d99f681e7b33bc4865dea7392179
11. 0x653049a9aa33dadd50d48402d642b67cb34ff3ab9430f47a6d9b50fa505e3742
12. 0x3fab29014a59c687f6118eca3485c41f9a6618c3a716d834942797aa73ac4570
13. 0x9c9a1349fe399f124906d08ece44301ec112d4726d8b013ff45fb1549305dc22
14. 0x22136ce0d951d9ba0a7af26db46b296e61b6d99bdcaac718cb7ad94fad708bef
15. 0xf3c6700d5df4bc68d1e98c623150c4852d8000cd123b59c743588bef452bdd01
16. 0x86f9d5fa5ffaf68243f66522b43dd83f29ab34fea48dd0c3366dc8c8821ebd3f
17. 0xbb1998892a86d9633ea7b5de06760114b45777da649c217062ff0d65d7095f34

Day root

0xd4eed8c0ea3c90ec6f262b19fcc3b849f30cb82a0f84b8b89569e48af7d0c1ee

Chained

0x59305749c32724a02a23c368834d8a36ae9908da93a915e2962fffe01b4e591b

Published

On Arc Testnet, block 70772483: 0x813d56041c1efd407e56047129b597b154a1cb26458bb2768fd0a4630ac97345