addrbookFor publishers
← The evidence ledger

Evidence row 2713806

Observed , by sync.erc8004/1.

Kind
listing
About
source_record erc8004:5042:205022
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
81045f518551dcf9acf17786c7ea3856faa6a811df97ad5992fba299b789abbd
Leaf
0xf98520881498d1c4661d5d23ff0bc25a6bb358749e3135f5516c4e7002189c6f

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/gQkCwL"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/e71fb52d-027f-491f-b795-ac7870cf1e62/.well-known/agent-card.json"
    ]
  ],
  "name": "Halano",
  "owner_address": "0xbb0d80125b656d65d22e2149bda689513855ff8c",
  "raw": {
    "agent_id": "205022",
    "agent_uri": "https://centralcity.ai/a/gQkCwL",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Halano 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/gQkCwL",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Halano",
      "registrations": [
        {
          "agentId": 205022,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/e71fb52d-027f-491f-b795-ac7870cf1e62/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/gQkCwL",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793740191,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-03T21:10:28Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Halano 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/gQkCwL"
}

What the leaf hashes

{"body":"81045f518551dcf9acf17786c7ea3856faa6a811df97ad5992fba299b789abbd","id":2713806,"kind":"listing","method":"sync.erc8004/1","observed_us":1793740228142994,"prev":null,"subject":"erc8004:5042:205022","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (425475 rows).

  1. 0xf984ef27f89d6a173010525797a5de37d76fb0eb5b7c4d1d5e374a30fefe2158
  2. 0x4118754c900a40aa1cbad0f69d3c867fc1ce8ab15d4460ac30b668d596140e94
  3. 0x1dbe96b26cac638ea005d364ae8d7e3c545729838c9b89a828f381d527836c89
  4. 0xffb604d78dc3a664e9e4c809520c1c6d1443a23934141b1dc0a8d944bba7ce42
  5. 0xea5504d2866baa7173c44df1755d0b20e6c32ebfbcda8e4ee7363ac5585e55a8
  6. 0x0ebc635045b79f4bdcaa9a8b487d062b86cff4e37237947d10bec1d5cb886c55
  7. 0x00444df7bfaf92189eb6c42546f055137ad44778a83413adafaafbac2985d707
  8. 0x27aa16742c273cb3f92cd8e0d25c8a6ee7c7a5c6c0c2f30e740d4ec622b64cf9
  9. 0xba3041617295b68c2ecbd1e8f310876b2ca426d1e4ff7f44c88a2a7b79be878b
  10. 0x88f8a1262f7056b33e9fc520c576645ac9a0c3e8bb1ece060321c591417d6ab4
  11. 0x1e3c94e5d2334b9da03533738f6b1b25aa37a83d04151bebe75482789d92ad9e
  12. 0x054caf29c0f40e86e5f2fa78707931ab15d93829c0134085ee2451a4500cc00b
  13. 0x4a5043efd66a24ab6ad0989ba3f77d8ad9e29bff006d40f6030cad40e00e02af
  14. 0xb67cf31c0f6dfa9976040b7caae9f293217f9d9984435c203bc54a3676e0551b
  15. 0xaaf692e701ee622e9e0fa24c7d0f9f672df8c586de5a6f0375f8cadaf0c678a1
  16. 0xd60b16e6a71fbffc93a233ee89f916e50c0206a56f52c852b85e5a246b6b417c
  17. 0x85f3a27c16056a361d9ba33355a575ca7123f86de901b204c88953c4b8ea441a
Day root
0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a
Chained
0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43
Published
On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7

How to check it · This row as JSON