addrbookFor publishers
← The evidence ledger

Evidence row 3058880

Observed , by sync.erc8004/1.

Kind
listing
About
source_record erc8004:5042:281964
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
bc314baaed85a9515474dbeb596884bb344df206a65cfc4d0ff623c2cf33d96e
Leaf
0xfdebe23c0fa291b5605b83bb05ea88263b702d5f4f8881fce8efff058925561c

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/mtuB7k"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/2e0ee057-3f94-4852-9d0c-80b01be2677e/.well-known/agent-card.json"
    ]
  ],
  "name": "Vianan",
  "owner_address": "0x4779d9a2801c9c731bb66ff8cf4231206c1a701c",
  "raw": {
    "agent_id": "281964",
    "agent_uri": "https://centralcity.ai/a/mtuB7k",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Vianan 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/mtuB7k",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Vianan",
      "registrations": [
        {
          "agentId": 281964,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/2e0ee057-3f94-4852-9d0c-80b01be2677e/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/mtuB7k",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793820348,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-04T19:32:23Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Vianan 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/mtuB7k"
}

What the leaf hashes

{"body":"bc314baaed85a9515474dbeb596884bb344df206a65cfc4d0ff623c2cf33d96e","id":3058880,"kind":"listing","method":"sync.erc8004/1","observed_us":1793820743709793,"prev":null,"subject":"erc8004:5042:281964","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. 0xfdeb826419b1ff30ddb523c3dd4b5e713fbeb4503c466604ee82988969c14772
  2. 0x07761e52165a8cb2906e6f8a19934c16b1bc6d69211394ded443ea23a234b45f
  3. 0xf35e6e4402d60a66864b1bdb744e591577ec81e6a4541df1cf8511965e49d45a
  4. 0x2e24032136f103157519896c6497cf3e7383e845ffbbd879e4a188aea435b600
  5. 0x11877a34b0cd6a337032c814cce5b9cfc9aae3d763559b21b6e2f4b07668e819
  6. 0x581729b7d76453739f6c2fd1a45694a9601afd43786f1d76bc39c30555307a4c
  7. 0xb11efb996bb60bc68a8541012c5506844e9bfeee66853201aeeb276b556c0a5e
  8. 0x17f42b6c8f982a03b9a3fa53d06ee87320d11453a0cd63b30aeef9d366d55c25
  9. 0x507ce2d3bcee41cc6c503b994cc05f806bf2839275789058fe043286a664fae6
  10. 0x8230b97b32d93d4907b3df304cd25f896c1e6b8cd15334a377a9c25d5d92c17e
  11. 0x387813dc69c22cf57732a611d7a21e817f30c8a4a2f8a5ce931680b8ee8827a9
  12. 0x760aeb0b4a9f94ed55c7978624cee1f17f8a6efbc157223f585b9cec589022a7
  13. 0xa4c6837c08296bf74558830f9995bd020c066ef20a961b83854210b3ececf637
  14. 0x22136ce0d951d9ba0a7af26db46b296e61b6d99bdcaac718cb7ad94fad708bef
  15. 0xf3c6700d5df4bc68d1e98c623150c4852d8000cd123b59c743588bef452bdd01
  16. 0x86f9d5fa5ffaf68243f66522b43dd83f29ab34fea48dd0c3366dc8c8821ebd3f
  17. 0xbb1998892a86d9633ea7b5de06760114b45777da649c217062ff0d65d7095f34
Day root
0xd4eed8c0ea3c90ec6f262b19fcc3b849f30cb82a0f84b8b89569e48af7d0c1ee
Chained
0x59305749c32724a02a23c368834d8a36ae9908da93a915e2962fffe01b4e591b
Published
On Arc Testnet, block 70772483: 0x813d56041c1efd407e56047129b597b154a1cb26458bb2768fd0a4630ac97345

How to check it · This row as JSON