addrbookFor publishers
← The evidence ledger

Evidence row 3130723

Observed , by sync.erc8004/1.

Kind
listing
About
source_record erc8004:5042:294634
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
4cb2d28fef703987fdf885a0532116a95ec397e640105b801464163b63574c67
Leaf
0x69e003ad1eba28d7b31fc42b9bad5b77914a6a03afced670918cc7fc9109d057

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/7wYjAy"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/14ff4fae-29ba-48be-9f25-ec029a859971/.well-known/agent-card.json"
    ]
  ],
  "name": "Niossel",
  "owner_address": "0xa90af8ef13171abffd0c4811a423631854852d41",
  "raw": {
    "agent_id": "294634",
    "agent_uri": "https://centralcity.ai/a/7wYjAy",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Niossel 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/7wYjAy",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Niossel",
      "registrations": [
        {
          "agentId": 294634,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/14ff4fae-29ba-48be-9f25-ec029a859971/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/7wYjAy",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793826795,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-04T21:17:31Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Niossel 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/7wYjAy"
}

What the leaf hashes

{"body":"4cb2d28fef703987fdf885a0532116a95ec397e640105b801464163b63574c67","id":3130723,"kind":"listing","method":"sync.erc8004/1","observed_us":1793827051510167,"prev":null,"subject":"erc8004:5042:294634","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (424109 rows).

  1. 0x69e056515d99e1eecc7cafe433654fa372ba9d3eadb1c48eb1199d3e5a09ba82
  2. 0xe69d36054ec819707c15595c6a5dfab168a79479aa265e75361ff4737edc43d8
  3. 0x95da6edc688f41100ca3805606783b0dab6f16b9c74cf4102adcfa41e27cb81b
  4. 0x37b059d06efedf527cc0c4d7b3b74a22b088e347ce4a4e07fd55ad89c8ef338d
  5. 0x8b2783aef308c84f32061c2910e0db0729f57c1845d8fea7208b9b7516b9446b
  6. 0x3317ef325750a8b11447f914fc4e60561bbd0413e81e1bac9e40b0676bbc188e
  7. 0xf5769f62e3fc227c9647f68b91a240f547d58461041790e63cb541440f248b3a
  8. 0x751fa6443e85df5e2b764b634b774a14e028ab9122e4c1a2fe6ef6263f26d704
  9. 0x91b56994e7f526593ed2c21f0449258e749b6ebe90b137f02cb835cb7bb1b8c8
  10. 0xdd5de6a38e9971f41e8047133c86ccd98cb3978547c461dd46b9043829ad1532
  11. 0x8f2a464bbfb2298acfcfba5f2c6457b528af6a86a47d08ca33b008afece5cfa8
  12. 0xaae3003511203cf085fdc7ca24566ee20bb7da8bb177af3ec7cbf72c7ccfc23a
  13. 0x216c4f7cb39735a92a679f53387ec2cc0b20dcad456dba44554a9756bca6b24b
  14. 0x3712db1cb5396683f3920f9feec808cf32004edf753d19ee1e3de6f3e846c055
  15. 0x0e10919b7a16f90360e54e6f46f983247d877881e666fe311966b12118be1c10
  16. 0x222747d565045b8857fa26ae816cd563ae6334c25795b19227a65c6abf341de3
  17. 0xd8e00ce5342a08a947d0a4806e7254d076614766392d88153d93cf58ae69cf8b
  18. 0xc3c363818e1d5142c4629be55f1c9e168a7466e628cfd2a858fe171aff1e91ca
  19. 0x10067354f57fa0cd86b7423e67cc1c7d107d7c9c6823df5246c4fb63b60575e5
Day root
0xd4eed8c0ea3c90ec6f262b19fcc3b849f30cb82a0f84b8b89569e48af7d0c1ee
Chained
0x59305749c32724a02a23c368834d8a36ae9908da93a915e2962fffe01b4e591b
Published
On Arc Testnet, block 70772483: 0x813d56041c1efd407e56047129b597b154a1cb26458bb2768fd0a4630ac97345

How to check it · This row as JSON