Evidence row 2583323

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/UMYaSG"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/b1fee892-92da-4a66-b919-d856e4a3f6bd/.well-known/agent-card.json"
    ]
  ],
  "name": "Hufan",
  "owner_address": "0x10c1db87d0f4560c5a255ce4c4fffc7aaaac2417",
  "raw": {
    "agent_id": "183348",
    "agent_uri": "https://centralcity.ai/a/UMYaSG",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Hufan 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/UMYaSG",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Hufan",
      "registrations": [
        {
          "agentId": 183348,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/b1fee892-92da-4a66-b919-d856e4a3f6bd/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/UMYaSG",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793710489,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-03T12:59:37Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Hufan 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/UMYaSG"
}

What the leaf hashes

{"body":"bbf1cc1299774537e829f2ea2f23e747599ffac8a3fe8e8518d02d767551af40","id":2583323,"kind":"listing","method":"sync.erc8004/1","observed_us":1793710777824955,"prev":2581548,"subject":"erc8004:5042:183348","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. 0xff407aff89c8cc453f5c7d2655a8fc1b674429b99f9b26baa29cbc2a51f0cc7c
2. 0xeb1c8599b555cd019516541f8432feefe8648667402cd114040e7bdd7d269070
3. 0x246cec9940e56ae3b16647fe84824dd48fe8fbaf6ad481a238a0593cb1620766
4. 0x6c1c5af106a033177897dcb3eb67b824d6e33baebcbe9fd79465bbc7e38f00bb
5. 0x6a32771210e771498a503c3f86c3eb1705d23da2c8a9bc2823e7fbab05bdda07
6. 0x9980b23d6f01ecd4f1057f64680cc2da41a8eefccc832eac02325f733f2aff68
7. 0x83cc323477143f249d2636f1b5cc9952893f41c136fa672672dc975e49e29206
8. 0x0cb1849569ae37386b8ab69fb140a5908ace3a5fbbe4acc570439d321668385d
9. 0xcf5bf3384dfd8ce1c17b90a6364f6f004571f0ed83af464b12040b1d2f650934
10. 0xbcb814735a9815a0e5d843bad38278ba4efeb9b958864b5adaaa3507979d05e2
11. 0x9488eeddea1831e87396367c60538bbe9ca9277e342d62604aa4bac80200d3bb
12. 0x424223067996c6779cf410507a2b2177dc12548f2863913b8c34fabf662141f7
13. 0x54a6c4f1a32dea245c883e7129cc7c46a6cb711ffd9df5ff949c0ac3758e91ed
14. 0x271cba1af45ae2133bb70993d2a8662bbad7bb8e8e0ab720853251f29efaee6d
15. 0xaaf692e701ee622e9e0fa24c7d0f9f672df8c586de5a6f0375f8cadaf0c678a1
16. 0xd60b16e6a71fbffc93a233ee89f916e50c0206a56f52c852b85e5a246b6b417c
17. 0x85f3a27c16056a361d9ba33355a575ca7123f86de901b204c88953c4b8ea441a

Day root

0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a

Chained

0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43

Published

On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7