addrbookFor publishers
← The evidence ledger

Evidence row 2602476

Observed , by sync.erc8004/1.

Kind
listing
About
source_record erc8004:5042:190199
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
e830304676aa5aa03c51f4753c39703b9328c4bbff7a6c6cd3ce32f83979ecda
Leaf
0x75ba3451c3e19a7a163e3d4d51cc98b115d0d08c328e87835d894ef2ca95fc7d

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/LflztS"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/a033457a-2fc4-4e29-b15d-ad8c033cb5f8/.well-known/agent-card.json"
    ]
  ],
  "name": "Masteon",
  "owner_address": "0xba610194c194f5965debeec0be8e9c18e88a37bd",
  "raw": {
    "agent_id": "190199",
    "agent_uri": "https://centralcity.ai/a/LflztS",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Masteon 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/LflztS",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Masteon",
      "registrations": [],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/a033457a-2fc4-4e29-b15d-ad8c033cb5f8/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/LflztS",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-03T15:09:39Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Masteon 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/LflztS"
}

What the leaf hashes

{"body":"e830304676aa5aa03c51f4753c39703b9328c4bbff7a6c6cd3ce32f83979ecda","id":2602476,"kind":"listing","method":"sync.erc8004/1","observed_us":1793718579474975,"prev":null,"subject":"erc8004:5042:190199","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. 0x75ba3fade73f044332de38b1e4313ba83e8d66485721c63169e65b0950c50f76
  2. 0xbef3bedbe629442876432c0f6f03da98cb10b93719f5b03db560a6d93e0e0e07
  3. 0xa9aa4452ee487b48e69891a4e89b25716a37aaa3f49362448f672ff7f2e9b3cb
  4. 0xd43b89b9b55723a877c35c1b520dc395e33f50e0b6ee23679c4b0060c388a6ff
  5. 0xe794c489ab9920561df1c9695f0289ed321285b64a69d46761446138a5659671
  6. 0x20bcefa4423d3d303db265498650e1992a38897c1198d331805615cca918ff7b
  7. 0xd5322812d1a8817ad613de0dc0f849d566bd469deba4732ce531819c4cdf3295
  8. 0xfb86cc79217e4f390e8eafe516af89e9f8b9a7db9d697b2b6b7a640873d9fdb0
  9. 0x48b4d34a968fea06781ad405e8b5f2c1dadd18927c5fff15e833af61144904c8
  10. 0xf777b6201c1444b86b043b7fa343bf4bcbe3f47b984df17e5be2050f34f77101
  11. 0xcc0e87e4b63c86fae9fc09f51eff08eae3d6a7d9265bfc10de62b298ca6e03c9
  12. 0x126c38cdece6005360dc2931aa9619df80f08ebf81a50dd1a46f3c8835c7cc42
  13. 0x0a2166fdbd0fb119437aa5c587d6d76eacdc831e2e2d305db6de877994a9e71a
  14. 0x8888e0d25075a71372832a4a34d226613212be78f7f52e7bc201b28be0cf3c7b
  15. 0x1be647e954f61ace2ed9636ef78e1986bb535c60f6f7e9d512f4249f9507bb36
  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