Evidence row 2550821

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/UAp8cD"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/81dcb51c-0140-4a7b-88d3-2cdb9aedb7e2/.well-known/agent-card.json"
    ]
  ],
  "name": "Polo",
  "owner_address": "0x66ebacb1af399875835a06ef065422d3c8df4335",
  "raw": {
    "agent_id": "168190",
    "agent_uri": "https://centralcity.ai/a/UAp8cD",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Polo 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/UAp8cD",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Polo",
      "registrations": [
        {
          "agentId": 168190,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/81dcb51c-0140-4a7b-88d3-2cdb9aedb7e2/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/UAp8cD",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793692713,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-03T08:01:11Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Polo 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/UAp8cD"
}

What the leaf hashes

{"body":"418d395e806ae38f26b927d959e2a1695a3f11742e92c09ceb52495d2e206c19","id":2550821,"kind":"listing","method":"sync.erc8004/1","observed_us":1793692871042691,"prev":2550099,"subject":"erc8004:5042:168190","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. 0x4666f2a7be62a313ed812a942f449060d7f8f6019fcdced8463434c3fe33a84d
2. 0x8b471cd6220e975c6764986e40db59c2029269d0792c62c9891d6ba307f8d593
3. 0x1f06fd2cd43c5aa162018f988e5251cd8a1ee89f0ac721329e38a4760a939f0c
4. 0xbe157e388e83760a6374b5c6549c9c7454e68513710c1e24ee448ee5b42104a9
5. 0x1ae9c1a1080dc6e1e21ed8b6e3a29bcc8c5da73d1853e168ad9089f01f0cc292
6. 0x6c7e015022120038f7a30f6a299ec4c8eeb93f37ff1c3c739f747f08f0ff2a02
7. 0xd23f215d091571f583f06333461156edfa848683806136e3f2b6a9d6bfebcaf6
8. 0xc492ca102f6cc7958b315481942e4077bb69806ae9c71938680c8f630745a52a
9. 0xef0763292fa2c8898fd3505a881cd71624e397491e38387d4cc518d3ac99d083
10. 0x3a7622e7b67c8c6fc6fa55ab4b07f37a375dceafade71c4315736ed02e01e8da
11. 0x329fbf9017e4641dd03636b4c068865230bb7a6fcee198b8786f78f7d8b9d117
12. 0x9f93f87a48cb4128b528f27fa91d5a06a616dd48953cc6f35cbf44c12248d2b3
13. 0x54c9072d283118fea94c9d38b8bd9055a74100c2f0d9bc8f677719bb2b7bc56e
14. 0xc46a5ce352649d53ab9bec3f87fd24e34046a987433894bf1e8165e57badee79
15. 0xd106fbd3b5dac57c72dd4fc8931f69b38fd5a542627e63d015b63dadf2188a2f
16. 0x35ca4633a97853eefbf38aaf743dd7ff85a4c731ccc8e31a34fd826c3142d6ea
17. 0x87df2ed9052c264d606c076742aa7e54b69fc8344b21e972ebcb19d020b7ecf3
18. 0x012ad914f3f945da3b6b48eddc7a1388613e4afc04339deb76c609611864e9b9
19. 0xe35032d4b064b015fe60638756eeb0bc24e7c7943586468d33349341ee0ed3d6

Day root

0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a

Chained

0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43

Published

On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7