Evidence row 1821508

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/ES8a9R"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/f98b763a-123b-4644-9e66-5c6c707478ab/.well-known/agent-card.json"
    ]
  ],
  "name": "Fudan",
  "owner_address": "0x43f2834f5c2a090341cac74c9ad7cf12bc8c0307",
  "raw": {
    "agent_id": "23593",
    "agent_uri": "https://centralcity.ai/a/ES8a9R",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Fudan 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/ES8a9R",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Fudan",
      "registrations": [
        {
          "agentId": 23593,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/f98b763a-123b-4644-9e66-5c6c707478ab/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/ES8a9R",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793564220,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-01T20:18:16Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Fudan 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/ES8a9R"
}

What the leaf hashes

{"body":"40c0864bcecafb612025f399f95689cbb7e75129b270abdd5a68f3d956e4e191","id":1821508,"kind":"listing","method":"sync.erc8004/1","observed_us":1793564296948934,"prev":null,"subject":"erc8004:5042:23593","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-01 (302406 rows).

1. 0xcf88f2e2f29a3b1114d0886a51e166e48ba0939ffb36eb69b1291652cad7adcc
2. 0xc9663baab1d4b633b50e2823f72cffd3d84260eb9fe1bc37b42b42443f171467
3. 0x33f6813aa77709986a58599ca63c0b94d448d3622fb1cc35e1337ebdf5219368
4. 0xc67167705964f0bca70eca14a9301337fee4a946fdbdbfa55863eb99f9897698
5. 0xb428b225582a0454de7ab91f066fef7fb54a913613f03fa14c082b8e57c56d52
6. 0x049ed1f01a4cad0d3d8581d2ce6110bbc24de8ee7e1354f1b1ea0b709650af9b
7. 0x9d73c294ba1431a48688881f9e4b5c05dc3ececc06712a4d59f5c39fb7982f1b
8. 0x9ae04a4333f372f10f64c8a9ba501883901e386f9a6384d8c7538b12c03537e8
9. 0x265a6a7786ddd082a75a64251d83bf20441b1c9137f5b1c61d47116d9cf8dff0
10. 0xc54708ee8ddf3b662e63ea5dcc9ce4fc8a7c2b4181731cd7f6f017552f984f4f
11. 0x032ba77c78f0e1f0f24f414ac46d6f10920549992d6f845848262910b7f41ce0
12. 0x31c1c30af3d362a5daf962324b8763f11ef40cbbfc221f01b1d00db92e30a88f
13. 0xdac71a6781318034c1afd4a1a615965f2837dd22d52db9dcf4ff6d934cdde2b9
14. 0xc837737eae003d6217621fce98752787bb2b4be80aad499398bcd6fa49bd6996
15. 0x537331ef190eaefb4419f2a4558b952aaf9435d759df0b0c118b7df609ec1687
16. 0xfc183bee85dc11a067fb710c6eb88824b94a516ddbdf2717b839e672a2206a7e
17. 0xb5916fb7a3e87dc0702e46eeadcd22652e2e1e755f8d429cc7a14a67a350b51b
18. 0x6142ac48fda269c17791c79da99c2456ac6acfe98268f4d168a404fd6040c703
19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90