addrbookFor publishers
← The evidence ledger

Evidence row 1807770

Observed , by sync.erc8004/1.

Kind
listing
About
source_record erc8004:5042:18892
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
47e861868b8b2d9ee867a96aab4c6ef33681430acee1189fcffa1af547f25ccc
Leaf
0x7ea42f9faadb1dcfb9550754d917617fc59b1e02b9b6e0b6a2b458ced30c9bde

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/i9KuZM"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/048ba4e9-025b-40ae-ba67-5585399fb8d7/.well-known/agent-card.json"
    ]
  ],
  "name": "Nonseon",
  "owner_address": "0xb5ee7e6f8c44b21771f2cb69d49b43c3a2e20d47",
  "raw": {
    "agent_id": "18892",
    "agent_uri": "https://centralcity.ai/a/i9KuZM",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Nonseon 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/i9KuZM",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Nonseon",
      "registrations": [
        {
          "agentId": 18892,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/048ba4e9-025b-40ae-ba67-5585399fb8d7/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/i9KuZM",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793560008,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-01T19:10:51Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Nonseon 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/i9KuZM"
}

What the leaf hashes

{"body":"47e861868b8b2d9ee867a96aab4c6ef33681430acee1189fcffa1af547f25ccc","id":1807770,"kind":"listing","method":"sync.erc8004/1","observed_us":1793560251016561,"prev":null,"subject":"erc8004:5042:18892","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (302406 rows).

  1. 0x7ea446ace57543a5d3b901199bc03dba1e36c6d2ab5f25b089c0f4735e192e02
  2. 0xc9f3949b8544daf3d2d1db78a7decef4eee877210a6fd3255f697c53ccf14bc1
  3. 0x3aff76cd4458e59eee2c04bcf82bffd24b4f705bc41a24efea2e084355786135
  4. 0xf80dd28679e4b23e0c38177d510856339041cbd52098a0bcc95d716ceee367d5
  5. 0xe867b0b093ea3af4cf25e7a1ec99340dc9e309c28c4361c37711c31f1a174655
  6. 0xc2b25e73cecefe6823124e04c420513dfecb8870196673de8a801c96d09af3c9
  7. 0xd3a5532b8ee84f9b36bba12a3f82684605cad00d704e3c35f2c1a6b38dbd6581
  8. 0x3d95679b7d9805e23ee92c4d2ae3763b71505649cb835c44a0717487292de90a
  9. 0xd7b2c0a505fdf2b7b0e61d37f2061ac35a84aed24f06f925c4d239347568f494
  10. 0xdab16d3048f56219d35de96e28539de84929e67a6862892a1f42276e16777f10
  11. 0x3a50b0bf1b117feb2a8b10ad9a37fdcf0c9d4c6468f0a98c396f3373427b5620
  12. 0xbef89f30edf79e35d1e5c3609040274f03bf6b5037e6619fb8bba37e42ead800
  13. 0x0d7168eda56f959819319294f2344abf3e83a06736c3ef37f9f274fd0bf74ed0
  14. 0x19ce574eee56ae085b2ab0004d191db3debc9d29cba2d71de21a8710ca8151ed
  15. 0x3950a937c3f98cedf9cbbc2f8905c10e3aac8ebc54b1e3468237d58bb254c496
  16. 0xe329dbfb0db2c7f35334e66970a8ee37ee2d3356d34d692c10f84b6f7de65a35
  17. 0x0c618c42b286ad61acd8204aa6dcf024b8b041d3759aa585bf4e221abc39cb5d
  18. 0x6142ac48fda269c17791c79da99c2456ac6acfe98268f4d168a404fd6040c703
  19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910
Day root
0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3
Chained
0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4
Published
On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90

How to check it · This row as JSON