addrbookFor publishers
← The evidence ledger

Evidence row 2602900

Observed , by sync.erc8004/1.

Kind
listing
About
source_record erc8004:5042:190406
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
ee169c7c2fb56bb50d6ec5cf3e92bc65ba877c2b3017971fa7ee1e4bd270de57
Leaf
0x62523b99e8148a68d6a894cd200732fb279a9f63bfbdb306975b93a3c200bad8

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/Wr1wCA"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/f5be9bf4-0fb4-4d38-9e68-7e5d45ab841a/.well-known/agent-card.json"
    ]
  ],
  "name": "Kostino",
  "owner_address": "0x40df22e933d47cd4e47b88026210d9c6293b5425",
  "raw": {
    "agent_id": "190406",
    "agent_uri": "https://centralcity.ai/a/Wr1wCA",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Kostino 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/Wr1wCA",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Kostino",
      "registrations": [
        {
          "agentId": 190406,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/f5be9bf4-0fb4-4d38-9e68-7e5d45ab841a/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/Wr1wCA",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793718770,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-03T15:15:24Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Kostino 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/Wr1wCA"
}

What the leaf hashes

{"body":"ee169c7c2fb56bb50d6ec5cf3e92bc65ba877c2b3017971fa7ee1e4bd270de57","id":2602900,"kind":"listing","method":"sync.erc8004/1","observed_us":1793718924782409,"prev":null,"subject":"erc8004:5042:190406","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. 0x6252015eab17fc4d7f4f21131056b84148e197f9f3df5700d687b396374c0139
  2. 0x4f0aa84bf7fa0e3a92c6e109ebd0c20879d639051fe5e6e843da826790cd73fd
  3. 0xcb7d61b39c1853c626ee9cbc99c888b6130b67433d729d1e1a5de6d636e1b9cb
  4. 0x40c95083e5697f4a56b2675990343f83a9c48c6df46acca868de2624b9ce9615
  5. 0xbee9cf88374356bf6500c1bc26ecdbc7f08af0396b37f2b0315177b8ea5d748e
  6. 0x6017fc928ea64c7225271c231e000ee15986e510a5813f90c5d8291914e502c4
  7. 0x5990d80798a5ebccef35bd6b568c3de94efcbd2f61eec47b60c1d6ff6ee3bcc1
  8. 0x9668dbf37eab01215a73a93ee81830c3d0f0d5cba08c84c17cf18519c214c786
  9. 0x277999f2b42e34bb6354ba44073a74ae24e1ee751cc8fb59d124f50b8d56f556
  10. 0xa1d7872d8cfc65fc7f0b2e606eee78c756d14f305579989cab2967e29471d621
  11. 0xa4bdcb999cc086dd6a1b800e0bd35694bb8d9b9968aaf00b0db70655516e9ee3
  12. 0x4e9abf4af955929c2b49b63a935ba94148e6b85362e01d45e1b6ff1c9c191985
  13. 0x19e66cf94d3d2787fc459ee19c722a1b183024b2f719029ae6a0881eaa5dc8ed
  14. 0xbf320f90cfe280db011085f74bddf4edc26cb0f41eedc38b0fa8b8f679ad0b5b
  15. 0x335134861d623e850e919233efd5afeff49bc2ffa02948458dea325cdabfc928
  16. 0xd3872af0d8c282b0d088e008b24701ec7576ad8e40ceab245546a2e300818868
  17. 0x3ef2d6c56d2bc5990e646c07605e90ed24d1c642cbcca8f60a35422b8b7981ee
  18. 0x717b5d7cbc24826c5b1f7b7433bf30b76e9ba1370476af4e1b494a5211897cc3
  19. 0xe35032d4b064b015fe60638756eeb0bc24e7c7943586468d33349341ee0ed3d6
Day root
0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a
Chained
0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43
Published
On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7

How to check it · This row as JSON