addrbookFor publishers
← The evidence ledger

Evidence row 2503519

Observed , by sync.erc8004/1.

Kind
listing
About
source_record erc8004:5042:150230
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
f23dab07b81c48e2a3507e223c5def9ca1b3a3c5a67df120bdee322193735530
Leaf
0xa2e3cb2af4c7f10f7edae8b063712310765048475a442d75cca8e82f14386a94

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/Qt4NxC"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/34baf489-afa1-47fe-a8a1-5443caa65cfa/.well-known/agent-card.json"
    ]
  ],
  "name": "Fosteh",
  "owner_address": "0x20f81cb4e6efff0a3060d3e6650564303a7fc609",
  "raw": {
    "agent_id": "150230",
    "agent_uri": "https://centralcity.ai/a/Qt4NxC",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Fosteh 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/Qt4NxC",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Fosteh",
      "registrations": [],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/34baf489-afa1-47fe-a8a1-5443caa65cfa/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/Qt4NxC",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-03T02:09:10Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Fosteh 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/Qt4NxC"
}

What the leaf hashes

{"body":"f23dab07b81c48e2a3507e223c5def9ca1b3a3c5a67df120bdee322193735530","id":2503519,"kind":"listing","method":"sync.erc8004/1","observed_us":1793671750672443,"prev":null,"subject":"erc8004:5042:150230","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. 0xa2e3c33c23741cefbe38934aff7deebf61016f762f1b2ed30c8cebe405afa1d2
  2. 0x509aca7d773574b63e6ed6b1cba5e613eaf8714e03d40378e30ab3a9f226935e
  3. 0x0f7f52744a3d1c73be8bf49ebb6824eae54bd46795265a4d4c757476079f2abd
  4. 0x5d25a42c7870e8ce241ec97a4ecbb6da9d2f4c019e6409e70987f073c53fa469
  5. 0xf0ea052eb43c50086630840016813424e34385d3057223542dcf255a96a1fa1b
  6. 0x754a2d0f81f7d7dedb0f760a078cf6cddf5de7d5d692391c3158d055553eccd9
  7. 0x151547012424d58b243c059ce26b48e90d901efe6187c898e6776ecf31ebae64
  8. 0x743197165572cb8dae931a0be62d634f0eeeb177ec29873ab8b6c170aeccb05c
  9. 0x42c827b622600d7c8aaa4cb5c702567db68f270c429b812984dc36a55fb6513b
  10. 0x680004ec522727f2e015859f4b9eb3063ccce092a9f557339c8052a6cf53572d
  11. 0xa069bb6f94e5f0566bb68e99e3e4329fcd48a1888cfad8fe127cd6c74c2fcc86
  12. 0x18e26c9ce6560a8dfdfac2a5585b2cf9df1ce96dc143db164f777c4bb4b3de47
  13. 0xf28d67782c92bef914bcbfba8a09fe25600ef28046c4bb2c25d01c0f921a6c77
  14. 0xe49428eac50d81f1f7650588e082bd418a927c143f69fb66decc0ace1ad681d0
  15. 0xc8c3351be4f517ca5732d6f5ee3d1d64170b8e4410d31b9c614949031fbc07a0
  16. 0xdbc1c0882584cff2eba84dcd18af41b5fd070127c962a21b00db1ec3e352cc94
  17. 0x39dab39081985bbfffe23b080399a9d1a9cb9c2c8960102350c4212113cb2cba
  18. 0xac5402954216dc6c7020a6405675c8fc3b0828c2ab02943d80de52677a2f1fc3
  19. 0x85f3a27c16056a361d9ba33355a575ca7123f86de901b204c88953c4b8ea441a
Day root
0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a
Chained
0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43
Published
On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7

How to check it · This row as JSON