addrbookFor publishers
← The evidence ledger

Evidence row 2711335

Observed , by sync.erc8004/1.

Kind
listing
About
source_record erc8004:5042:203915
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
a9e4c1525d2f1428b26ef4f2de40f55db272530288e48848674cf221c1b3b4ca
Leaf
0x650cbfd0e3bc3db58cdadb74c0b4bee72c06ca0db3f81ab2203932303c4804e7

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/hZqF3j"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/ef5d402e-dc4b-472c-87db-97dbe9db18b7/.well-known/agent-card.json"
    ]
  ],
  "name": "Niantino",
  "owner_address": "0x131a1f3098ff477d8c88bf3ef029ac0e1ab65c8c",
  "raw": {
    "agent_id": "203915",
    "agent_uri": "https://centralcity.ai/a/hZqF3j",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Niantino 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/hZqF3j",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Niantino",
      "registrations": [],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/ef5d402e-dc4b-472c-87db-97dbe9db18b7/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/hZqF3j",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-03T20:42:25Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Niantino 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/hZqF3j"
}

What the leaf hashes

{"body":"a9e4c1525d2f1428b26ef4f2de40f55db272530288e48848674cf221c1b3b4ca","id":2711335,"kind":"listing","method":"sync.erc8004/1","observed_us":1793738545730285,"prev":null,"subject":"erc8004:5042:203915","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. 0x650d5e0c0d9fa3c53d3099cbbe10d8308c3762c6fd37322bba0a5ef092925725
  2. 0x9ad2cc21ebadda80697f0dbe908b2bd7e1ac0fa46007661c67cfd806968f6005
  3. 0xf7be226e9946353aa78f5a3a85dfc207ef681c5f718485045522d6461645bd24
  4. 0x6aabdd426c5cc136be3f4443d93a51ee64c39a8a854608f1266df40711d72e30
  5. 0x436495103f7322b3c042b47f9d0c48602a0d39bfa6bccdae7ea464e9111dd4b2
  6. 0xd4b7eee4decad93deff80d2f10fda345c818e5eb4f9c6e64ddfdf86dc8fcbd5f
  7. 0x36531c3a138f63f99a3eb399afcc08cbbd4ccdfccae0f1d6ea6d8d6e929cd4d5
  8. 0x7f12db477a1c889b93a324b11001de7b80b37797e0ed94b8dd5b69ca744b6d6d
  9. 0xf5983b6dba74006d479dda3c7cddc7d6b70ec79ed9da983163a9eeabfd497b6e
  10. 0x4bb6d1c6a56d8fd9aeb9bf312c4060132a9f569c96c1123865f13ef6b938afc2
  11. 0xf2562b881998c76d453046b4811440cf65fc600f4dbbf4324514b4d7bd33077b
  12. 0x8d864bd17d983215590f59626d5e886359bc1819dc138db556538de27724d0dc
  13. 0x935aada10f117485a9e2b905a05d3c89c0ea4c0d9218f126f2818246c6d7a5f8
  14. 0x7888f4af6f2ce9e8a2789d6262f3507d19501a0a365770aaf709515f60b6e8f2
  15. 0xa8458bc8c8ab1d4945ab9da0d4203ddba2468a0fef808e9febae01e3e86bcd40
  16. 0x4f2735e4d41cb2a5d48f6769cc066ea1066bbcd0623dd42fe7bc81e54092cd64
  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