addrbookFor publishers
← The evidence ledger

Evidence row 2927748

Observed , by sync.erc8004/1.

Kind
listing
About
source_record erc8004:5042:218365
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
e7af99ebfd3c803ad1f0471eb36a802fd8880161db406e8a150eb80f1e84ce82
Leaf
0x05dcd774f3afe0ac705c42f0c8e5ec7a3308f7df08d2179aa94187d73462f445

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/GNcIYd"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/cb9febf6-cbcb-4b60-8914-c95cd962b30d/.well-known/agent-card.json"
    ]
  ],
  "name": "Viosseon",
  "owner_address": "0x4948283905634a7871fccf5e652c841c625e8bc1",
  "raw": {
    "agent_id": "218365",
    "agent_uri": "https://centralcity.ai/a/GNcIYd",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Viosseon 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/GNcIYd",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Viosseon",
      "registrations": [
        {
          "agentId": 218365,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/cb9febf6-cbcb-4b60-8914-c95cd962b30d/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/GNcIYd",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793757282,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-04T01:55:33Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Viosseon 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/GNcIYd"
}

What the leaf hashes

{"body":"e7af99ebfd3c803ad1f0471eb36a802fd8880161db406e8a150eb80f1e84ce82","id":2927748,"kind":"listing","method":"sync.erc8004/1","observed_us":1793757333648797,"prev":null,"subject":"erc8004:5042:218365","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. 0x05dcc2289ef428d026621d88dd448ea818f78be43d96c48b75e754821ea0356e
  2. 0x6a89b6ee3b86182f3ef79f6482666d5d571f6ca32c263e5f7f7827637a7acd79
  3. 0x5e8347423144c0b764003d8454e21a115227d8f338ad1a4103de3a84451e8f1f
  4. 0xa67477a511d86a51a70b4c32cbda6d3090fe76cedf151468e116ff3c1f37826f
  5. 0x0598750785d4c46812e148630fad640d9b6f6046569ea0461209ee2a279465aa
  6. 0xe37d1f15688f3c5733ad3d734675b0eef4c28a302cbeb99ca3f372b67ab2397b
  7. 0x134023ccf165d9e9568ae50d2a0e2f910fda48cdc061662dd8ad9270d4ace990
  8. 0x3cac6bab0cb064707584785ee2942f1c79ceafd74b839e3e3585764a8c140880
  9. 0xb258f5cd91dc832508a60f2bd088603f6e860e8d515c43eedda790bad3b72c94
  10. 0x29863c412744c4a7910009dd9dcb9d1b46c7cca0ffb89ab5ec01ac8e60cb0668
  11. 0xb1375432ff50b62f13e6103599d33272f130fb7c65f640097cd6d5ca10a75299
  12. 0x2f968df836125b3153c54cba79457d2bac32831852776759495557511580aea0
  13. 0xa232f39d56b8c1778b4a53ee7cdafe19b17de2af13d9c6ce77cd26ffbca521be
  14. 0x100f0c53fd119963d622a12ca44bbe30cb6c40b8715b5360425f34a4bb487b35
  15. 0x25c6f3031e09eeef9fb0f5c010f6aa1605f7af5f1a8859ce4db5ae48d0598359
  16. 0xcdac863807ea81d51a9ab718457637e91824fd377a06759901352d9a23933554
  17. 0x01c26569ec8e231551522ab452fd5d417c3d66f29c7c76886a8ec295a18dd624
  18. 0x02f64ca19e7d9b09718851d2ce3abf641982580de99411626d894607cf386cd5
  19. 0x10067354f57fa0cd86b7423e67cc1c7d107d7c9c6823df5246c4fb63b60575e5
Day root
0xd4eed8c0ea3c90ec6f262b19fcc3b849f30cb82a0f84b8b89569e48af7d0c1ee
Chained
0x59305749c32724a02a23c368834d8a36ae9908da93a915e2962fffe01b4e591b
Published
On Arc Testnet, block 70772483: 0x813d56041c1efd407e56047129b597b154a1cb26458bb2768fd0a4630ac97345

How to check it · This row as JSON