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Evidence row 2724211

Observed , by sync.erc8004/1.

Kind
listing
About
source_record erc8004:5042:210088
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
e9b2ac10b042150b6aa9e4e2bbf213e2ec223258b5b3ae12560c0c604cd1feb8
Leaf
0x948a9285e18dea3d48562b312cfd7799f2963f1636ba2ee1a10ef631da04c34f

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/OvvYB0"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/d28f549f-0da0-4653-9429-601a6a9308e9/.well-known/agent-card.json"
    ]
  ],
  "name": "Biontamet",
  "owner_address": "0x440504099bf97d37b566bd8e8b4b602b0d318601",
  "raw": {
    "agent_id": "210088",
    "agent_uri": "https://centralcity.ai/a/OvvYB0",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Biontamet 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/OvvYB0",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Biontamet",
      "registrations": [],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/d28f549f-0da0-4653-9429-601a6a9308e9/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/OvvYB0",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-03T22:56:58Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Biontamet 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/OvvYB0"
}

What the leaf hashes

{"body":"e9b2ac10b042150b6aa9e4e2bbf213e2ec223258b5b3ae12560c0c604cd1feb8","id":2724211,"kind":"listing","method":"sync.erc8004/1","observed_us":1793746618325031,"prev":null,"subject":"erc8004:5042:210088","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. 0x948a719140a2e50bef4ee9aacfc9bc82bde43cb378a35b3a56301031b4aebfe5
  2. 0xac3cedb73fc042825c6d16ca5680c14e1199483ce771215234924dcc45b72e6f
  3. 0x00ff3ed7767a93bf303cbc084e224054f6b0830524fdbdd19260fc1cc3ca6c0e
  4. 0x80deda1053dd34115b8064b85d2f2a013c8773f4cc9cbbe22280af7f4273cf51
  5. 0xe1afd145632abfd6c713fac9d0b8f53db8e987b526e2e6d5d61a755a1e6c224b
  6. 0xbc14072eae49516cdcbd0c04b1c32e70a08549d9f2d7404d9ff30f057e6645d0
  7. 0xe98c5a12b42d8e569d1aa4876ba6b3bf0cb177c6486098c335e6f69ef7c3ff3c
  8. 0xdd848f132c4350c7a9d0e107c241afc02aa17d0e5a795f8b1eeeea5a986366d6
  9. 0x3694dbf92ff8e9ac58bf484b55ea897daabc1ad5b5b5c8198dbec175f7ded596
  10. 0x00ae60678e9aec8938d9477aa448a8422d56eede0caa5e51ef1bb8db6b487e3a
  11. 0x2db13621d1ce0461312a664378efd40b4efccd0683a10cdc23c9396a25b05261
  12. 0x860c2c10eba4f0e983dd4ddd068c7664a84eb2de727da7ed7b96ff05e2133dfa
  13. 0xe8a1cc80f0a780fac0f4fe59ece43b6ed3c93f7812fc0d8197e2f289c28a6e91
  14. 0x5c9ae28a0518d4809ee022d01782eecea78011098dc22bdff483a2aa8a023b62
  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