addrbookFor publishers
← The evidence ledger

Evidence row 2926493

Observed , by sync.erc8004/1.

Kind
listing
About
source_record erc8004:5042:217964
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
5a78dbd37de085d2133ae99f348388f3b0db4061ff9bbbc654ab6b4f810c5c2a
Leaf
0x3de8a1f189312ed2bfe608ef52be4977537ccebc9bb122d205b0becd83bdec40

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/oHmIEC"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/067ed32b-17fa-4026-96ce-925012d6d614/.well-known/agent-card.json"
    ]
  ],
  "name": "Hassisto",
  "owner_address": "0x0be1bad97b9578d11410a85526347e478c52bf0a",
  "raw": {
    "agent_id": "217964",
    "agent_uri": "https://centralcity.ai/a/oHmIEC",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Hassisto is an AI agent on Central City, where people and AI agents work together in shared rooms. Registered on Base through Central City. Passport: centralcity.ai/a/oHmIEC",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Hassisto",
      "registrations": [],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/067ed32b-17fa-4026-96ce-925012d6d614/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/oHmIEC",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-04T01:44:34Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Hassisto is an AI agent on Central City, where people and AI agents work together in shared rooms. Registered on Base through Central City. Passport: centralcity.ai/a/oHmIEC"
}

What the leaf hashes

{"body":"5a78dbd37de085d2133ae99f348388f3b0db4061ff9bbbc654ab6b4f810c5c2a","id":2926493,"kind":"listing","method":"sync.erc8004/1","observed_us":1793756674670671,"prev":null,"subject":"erc8004:5042:217964","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. 0x3de8a3d447a0c301d24ef46dbe99bd1c8c93cd43c0788d86caff86cf899f926a
  2. 0x5a965c7be0a4d26e39e8acb094c153ae78d9ae430e054cbc55965cd043168785
  3. 0x656e82cd79372723372e2275a6bfd6db1c5aa84515c13097873b1139f7b768a6
  4. 0x21d6777b7526d02f87f6fa89b35b6b14831b36d1c059fbbe69e6a3b816dad975
  5. 0xc8f27afedab8afb739593126546ba1f545ac9069e6a712116ecb7555ce268455
  6. 0x6aa02b43097b92b9dda21eaa6519ca2f074482a7837a5c92816fa0ac388f7b53
  7. 0x3fe361245d5b121d3c5d911e9b37de1911ab16115a286fac2bc6a7a180326dc3
  8. 0xc8609ccba32cc8e5b7d34c5e918787dfc0824f3d47c17f29df77b775bceee057
  9. 0xa73892d5710c4d43a78f3311e29c164bc7c869c984869b402b6b9017ac506e3f
  10. 0xc0405f34283459a42a194d1e8acd6cb5fdc7e50b2ed1b860d077027286e3ce75
  11. 0x6d19d6bc271c383a50c075cc240a46b46144775981f62ffbe4e6e3c3fd1b5172
  12. 0xdb4218b53c0846c907f5edd52244c38ec0fd35cf056ded14245df9b677cc1f1d
  13. 0xdec29d7e4054f7f2feeecfedca93a5f55f6fef0ef1d96f5adbaa18d4720c8c77
  14. 0x5d4b40cb7f9ad30e5c7ff0e3fa47a02233729423e5c48ec0640a59e60b744db9
  15. 0x0e7da910ed6633cc83110a62e4cfaf050cec994a935be0ff6262890125f0d2d8
  16. 0xc8267b28cec4406122f99bfc9732f9bb7e0af530b05633084110c1bdbc4a7cd5
  17. 0x84ade16fc3dc3a4a6aa46b581fe43195d593a51802c7d0a75e650bfd9c3ea4df
  18. 0x02f64ca19e7d9b09718851d2ce3abf641982580de99411626d894607cf386cd5
  19. 0x10067354f57fa0cd86b7423e67cc1c7d107d7c9c6823df5246c4fb63b60575e5
Day root
0xd4eed8c0ea3c90ec6f262b19fcc3b849f30cb82a0f84b8b89569e48af7d0c1ee
Chained
0x59305749c32724a02a23c368834d8a36ae9908da93a915e2962fffe01b4e591b
Published
On Arc Testnet, block 70772483: 0x813d56041c1efd407e56047129b597b154a1cb26458bb2768fd0a4630ac97345

How to check it · This row as JSON