Evidence row 2562015

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/9iCJyH"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/ebe7a9e9-6ec7-4db3-931f-79c1351b968d/.well-known/agent-card.json"
    ]
  ],
  "name": "Kosteon42",
  "owner_address": "0x15a6640f0eae4ef10053735199e3b557261b2beb",
  "raw": {
    "agent_id": "174517",
    "agent_uri": "https://centralcity.ai/a/9iCJyH",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Kosteon42 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/9iCJyH",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Kosteon42",
      "registrations": [],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/ebe7a9e9-6ec7-4db3-931f-79c1351b968d/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/9iCJyH",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-03T09:53:53Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Kosteon42 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/9iCJyH"
}

What the leaf hashes

{"body":"b1988994f2868a33ad489a2865e7c002b88c8eb92b0095c56a6bc6410dda7689","id":2562015,"kind":"listing","method":"sync.erc8004/1","observed_us":1793699633115033,"prev":null,"subject":"erc8004:5042:174517","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. 0x45912107c5e72d7b6523a844b5fb8bd27c5acf7a16f842f957b7c834f58b90d4
2. 0x76eb3f9034e64b974405ad7fd3d2f13859734fec723cdcda93853e6aa3ec8c72
3. 0xdb2a4febf188e4afedc92b0549e07ee08d6567abea66ba7cb6d14f041456cd52
4. 0x958873c1a192f9e3d07df3623c77cacff586ad9165ccf6893915033a1d419555
5. 0xc30735729b19d4d60bc0a03f8298fb6ab1da4d7a2f8d43efaf09d955b071b754
6. 0x1178bffc9b546e5248049662d62af45f09d9f6e8c1d05dd7eb0f124970d210a6
7. 0xb95a65ff8619559c65c6ad8d81f009c3f346835abcc031a457d6114f42c9f26d
8. 0x1e1452af17fa597ccf40e0b338c242b54ff6e10bc9f7a4b59f6c1b9b4b2146db
9. 0xe25f093bde6a7766b67b6f091d78ddc428ea005e1539a7446aba1535c9190626
10. 0x0472e229200096a81f18470b82303e08ae8faacc5875f3a2555f123219b5210b
11. 0x019761b235dbe7d987c48f83557c1f4e4398177d343b83633ab05215c77c2d74
12. 0xe55566f2b7e45bb116b387d6f5556331a34ace81b106c287573b4bfa6cab1a72
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