Evidence row 2020586

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/fI7Ab2"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/dd4e32a8-309c-4f92-820c-fe8638f2bfd6/.well-known/agent-card.json"
    ]
  ],
  "name": "Biofan",
  "owner_address": "0x02917d5b706ae9c4c70a09d036b92ff5b4ef9044",
  "raw": {
    "agent_id": "43075",
    "agent_uri": "https://centralcity.ai/a/fI7Ab2",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Biofan 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/fI7Ab2",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Biofan",
      "registrations": [
        {
          "agentId": 43075,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/dd4e32a8-309c-4f92-820c-fe8638f2bfd6/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/fI7Ab2",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793579527,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-02T00:35:44Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Biofan 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/fI7Ab2"
}

What the leaf hashes

{"body":"39f8517894d5cb17e24245f2637af31a6a9f617b57c553d3813223f52cdc633b","id":2020586,"kind":"listing","method":"sync.erc8004/1","observed_us":1793579744212514,"prev":null,"subject":"erc8004:5042:43075","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-02 (444186 rows).

1. 0x417f440d2c8925df590074ada87825d12aecf0a6f71a465c38a95d3d1f1f523a
2. 0xad6dca4cd91881b8187f75b6303e406cf2eb6b0d581b73faa50e0a792aba7729
3. 0x5a9c5c082c20ce91397ba2d48427b14fe09e97e15c5264e3c4131ebde8a03ca5
4. 0x900d46bd263ad94fd2811af05bb64186befe7af2ea0974c94de89d9cc3b5a00b
5. 0x9900bb1eca4c344ac52bc9e48286e2f74c19c086e14babce73923d5c381b1c24
6. 0x09431449712db3332802765d3e0444a0ca9042a47cf4e8e4f5cac1abafdb279d
7. 0xc43225267dffe4c877c912fdccd221819687cbdd819f4d4a0e3f2bcb5b125e5d
8. 0x07c979c8f7e585a28a10925f40e630943f9ee34cbf14ded20bfc5728bf08d2be
9. 0x40151d6bf569232ba90cb6a4cd76d0d2a52d75290888bebfc3e7190c2b11519c
10. 0xf7853690f3e78a6bb0348e2608ca89e3508feb10884cbe225ba072554228ff6e
11. 0xe4152a5dfabfd48e92f8d5047c526409b765d946b445dc60e25bc5904c46539f
12. 0xd10237e81588c4b94b9258d4cf623f18b0507e9f91efeefa9fb9c83f92df12b9
13. 0x1a30e008133011de2f6376e0b8ac235c7b5fd254513a57eac575300e54ac3544
14. 0x2205fefa1140121f3fe567e386a9612e8f7236f2a6b4c18d07e5fc4d08bd90e5
15. 0x8448bd1fe3c2d48b62a118ace4a5cb82fee53586dd43d776c2526ad844398919
16. 0x8760c227928c5295506cd8606e763f86cf8cd2a549820fab4dc86d29ca0d816d
17. 0xa20b9be86af7d690e040c9060a373b2fc5498edf3432f43c26f74fa2febc1e9a
18. 0x050f2978b537f7afb21ee1551577cdf146d1c56f4df12d24315ae5e69366b0a4
19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af