Evidence row 2216609

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/87FWMw"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/64b14dc2-4732-4db4-ad7b-8c8f6d6f8b21/.well-known/agent-card.json"
    ]
  ],
  "name": "Biarkero",
  "owner_address": "0x3e84b079c8b8540fd70f8b5bbeb1d91f247e0789",
  "raw": {
    "agent_id": "125943",
    "agent_uri": "https://centralcity.ai/a/87FWMw",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Biarkero 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/87FWMw",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Biarkero",
      "registrations": [],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/64b14dc2-4732-4db4-ad7b-8c8f6d6f8b21/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/87FWMw",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-02T19:19:42Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Biarkero 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/87FWMw"
}

What the leaf hashes

{"body":"9852e24d5c14c109d7c8ed4c0e8e28f459686368cd964147ed0111ba190ccc31","id":2216609,"kind":"listing","method":"sync.erc8004/1","observed_us":1793647182608418,"prev":null,"subject":"erc8004:5042:125943","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. 0xfa6cbafc99dd46a21d6afe6014e51f250a1fdeb593773249de7094656c89e73c
2. 0x17aa5bca3b7130f10d4fe6bc580ca7ff42ceff9605a3e377db785095c7b0963b
3. 0x55fabf68e82322976895464be5b81c03dae4f8a96a90c6f1014a89a28de8fe22
4. 0x19a1219fd90c3d2bf021077dfea338f74d520c5ddf6683cfae028b87381f1498
5. 0x08e099115fbf982ae8ce159904940618c81b27f5368dfec1b4f1a01ad5deb3a9
6. 0x00ea7d756a68f7570ab3551334f786575b72610be6cdaf5545fb06b61df5371b
7. 0xd055bab5bb735ef04ccfe5f5d5d85776f4308b9ec275cd611de6e35efd90fac0
8. 0x0ec0c50b1f86e47e5f64cd88393bb4ce0ea7e44e9f6bc5ade906cc3f0ce1024c
9. 0xa17db844e3bef48d0ab1bb1e91bd007238ed34ae70472a2377c1a96fc9205198
10. 0x1d7f27e43d1cfc7aae023e8e3845d6a266126bd9708502005e96723042ea0b50
11. 0x8a58aa9f01814788100b857e79ca8a8885471d7ae34162bc1fa3c986741c6a39
12. 0x1fdc5cec209319ec27c935f06e49dfee099419dfa8632c827c7fdc61fcd2e0c3
13. 0x53d9a703c9e9f252a5170e08d05e1b0117ac9e5b187b8d11c1fc275324818140
14. 0x59ed3c823c7507ae1b2993d19eda543383739dde961b25c4e0927023fff6be12
15. 0x4068a4306db47ea0eae5f76e5137753caa3dbb132dca6a61a4d6c1838a52700f
16. 0x25127db2e775737b2874f6a159f7c1bf984317eea6482e94589c3ef4c5ccab32
17. 0xec5d643575d83c9e07e65deeef71943b53cbf3007e7e2b9a6ef414081509b0cc
18. 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af