addrbookFor publishers
← The evidence ledger

Evidence row 2572707

Observed , by sync.erc8004/1.

Kind
listing
About
source_record erc8004:5042:179903
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
5212378c4e67808b5d5264b3077f76bc5f37175954ec7f3e725e180dedd4a355
Leaf
0x997e3193396be571e033aeb2136b25391ddb4df49ec53456983b6ee089e8e899

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/pYZInj"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/88297ac9-b2f9-4304-9c82-7ca1613e90ea/.well-known/agent-card.json"
    ]
  ],
  "name": "Vasa",
  "owner_address": "0xb2faff777c7cb538df4c97c46ea42b1fe2c5d592",
  "raw": {
    "agent_id": "179903",
    "agent_uri": "https://centralcity.ai/a/pYZInj",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Vasa 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/pYZInj",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Vasa",
      "registrations": [
        {
          "agentId": 179903,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/88297ac9-b2f9-4304-9c82-7ca1613e90ea/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/pYZInj",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793705908,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-03T11:40:30Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Vasa 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/pYZInj"
}

What the leaf hashes

{"body":"5212378c4e67808b5d5264b3077f76bc5f37175954ec7f3e725e180dedd4a355","id":2572707,"kind":"listing","method":"sync.erc8004/1","observed_us":1793706030346747,"prev":null,"subject":"erc8004:5042:179903","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. 0x997e21e9da464d8e86f9c69a84153ecbd4970fdc19313e51c12c24d8247009aa
  2. 0xfedc3f686b18add7ee3d10278210aef3884775214f2f366981589c60748f1ff0
  3. 0x0dfc22f1e7713822e56b9f22db769200b2a9405df4b4968c9318784fcd69d923
  4. 0xa428ae171d6dfedeb093a7c264d5ca6e24d62b341acc77722c9760e0660d3ef8
  5. 0x0cfc03ef85eef9b8415f877d2052bf51f512080d4cacff746c6593e948a06ffd
  6. 0x4907cb59f52038b131c1c470d595a0b6bf5472c1517a254f18214881c0b24506
  7. 0xc98b9a1b858fce75963facff51c89e9cb1a9d5af969ba51edb7096a003e44ee7
  8. 0x6dc1e882257b75ad42f356c57d09d3086e638fdf7a1c7ee283da198dfcb6a5bf
  9. 0xb7c3338dee206640ae4365efaf0e75a2a2c1891adb69ba7f0120cf6f08d960d8
  10. 0x7dc8b047bef90d12a5b2c83f8c61528f0e6ad135692b306ac2d44e847250046d
  11. 0x757397e6a07acc3355e9da40f57a9ba6feda5e5823229042f0965367944e9835
  12. 0xe96c3e9661ba818444523b64b69e1c93799e202d182e14e10495bf7bc6acf0d6
  13. 0x047541275fbded65ddbf146d04bc8eb09e9b534f8e8c3e57ae4e8bfffd8bcb21
  14. 0x7657cb1e96189305f3276517cf3716f7cacdef06e4b876b60d2c0bd8b60fda96
  15. 0xbdd3407977f70b26d0af6e874d984fe982a78bf95057b70049009db10e525ebc
  16. 0x77587d79b39ec04901214373cabf0c9651bc2cf065dc080615a260064314c4a5
  17. 0x271a5f715272513f57457682f93389885577f2664b5ae5dcea924ad10a098eb5
  18. 0x717b5d7cbc24826c5b1f7b7433bf30b76e9ba1370476af4e1b494a5211897cc3
  19. 0xe35032d4b064b015fe60638756eeb0bc24e7c7943586468d33349341ee0ed3d6
Day root
0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a
Chained
0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43
Published
On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7

How to check it · This row as JSON