addrbookFor publishers
← The evidence ledger

Evidence row 2138563

Observed , by sync.erc8004/1.

Kind
listing
About
source_record erc8004:5042:95902
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
1443e97ff42fdd9aa08d20a42861b75ff596e7827df4c786059b94d4097ceedd
Leaf
0xe594ac6d68395b068b9305987029aa02065a2e97377217b2dfbfedd6f76feec9

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/iWFq8U"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/77a490c6-2613-477e-89b7-80c145d380b7/.well-known/agent-card.json"
    ]
  ],
  "name": "Nostias",
  "owner_address": "0xf693ea73c04f34ad4c3a5b9f96efb139f37999fa",
  "raw": {
    "agent_id": "95902",
    "agent_uri": "https://centralcity.ai/a/iWFq8U",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Nostias 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/iWFq8U",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Nostias",
      "registrations": [
        {
          "agentId": 95902,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/77a490c6-2613-477e-89b7-80c145d380b7/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/iWFq8U",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793624095,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-02T12:56:52Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Nostias 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/iWFq8U"
}

What the leaf hashes

{"body":"1443e97ff42fdd9aa08d20a42861b75ff596e7827df4c786059b94d4097ceedd","id":2138563,"kind":"listing","method":"sync.erc8004/1","observed_us":1793624212069560,"prev":null,"subject":"erc8004:5042:95902","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (444186 rows).

  1. 0xe594a28c8dd2547928f8698164b068a51fe94a8d353be4f01c7a70648bb2b589
  2. 0xae7533adf440b06bd0bf410c68bb9a134e6302e9d7df09c517be07193693a921
  3. 0xae9e22eb9300d8dc62decbaa6751e2206aa1109324d2ee88e5394ec78072e3e6
  4. 0xa81ba09595364277261f1629a2858792d1da328e250ef64c156b8e6b899dfa2e
  5. 0xf507d2ee750002d3e7a76e907f784a1d246507d6cc8c5615ad6956c04da1ecb0
  6. 0xfe25fbbf6ca55f2b2ee5b63dff1fe697b3715bb3f4551ccbafb7f605660ab246
  7. 0x9abbb2fabbae5561e48b96a91a73cc130df494ff52570695a0e8336915ddd3dc
  8. 0x18531c289f3363e6e0f260d03932f43b54540e0b15c7372da22a4b07d7302b17
  9. 0x9a38863149114f2657a2fb8f8c10d55ac46967e026acf47b55253d79dd56f7fe
  10. 0x4c116e00db1c3643454b3fad0d96facb960dcb409c372cf9df0e50dbc6b43604
  11. 0xb11db742ce4f8b1a66d552c1cd8fcefce0bada54ae42fe0e3def7fd89318192a
  12. 0x5de7f05542dbb95181c4cd655efb5f574870082798b2bebb6b2d8842abbb03ca
  13. 0x699db14025d495a48d39671ab634de3d8cbdf71cc080884a285592176d87ef84
  14. 0x3e441d3f53c7b69d6c73ef93d327dfc3071a522c550856540832b34fcb531738
  15. 0xd643f764eee39146411d4bff8903a327f4f8f55616e14e57281a245206d6ed2b
  16. 0x6dd7e4db65395e8670c7c2747d44fec79e03305934ef4746bf5dbca04ec6ec49
  17. 0xec5d643575d83c9e07e65deeef71943b53cbf3007e7e2b9a6ef414081509b0cc
  18. 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884
Day root
0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
Chained
0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
Published
On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af

How to check it · This row as JSON