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Evidence row 1847923

Observed , by sync.erc8004/1.

Kind
listing
About
source_record erc8004:5042:39592
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
b0b9c9771ade9334ac2b25a72b4783a64b5645575e88ba62b25b24aa738858a0
Leaf
0x4fcddd79459fa889fa89e94036b7799d7d2b160a9969cebf1e8aa26ae20a4497

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/Dvy8DP"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/ab77b38b-d98b-4c6d-bdfa-f82ee89d424b/.well-known/agent-card.json"
    ]
  ],
  "name": "Harkano",
  "owner_address": "0xbddd020aa72499fd78b55de6094c801636a878d3",
  "raw": {
    "agent_id": "39592",
    "agent_uri": "https://centralcity.ai/a/Dvy8DP",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Harkano 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/Dvy8DP",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Harkano",
      "registrations": [
        {
          "agentId": 39592,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/ab77b38b-d98b-4c6d-bdfa-f82ee89d424b/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/Dvy8DP",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793576940,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-01T23:49:12Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Harkano 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/Dvy8DP"
}

What the leaf hashes

{"body":"b0b9c9771ade9334ac2b25a72b4783a64b5645575e88ba62b25b24aa738858a0","id":1847923,"kind":"listing","method":"sync.erc8004/1","observed_us":1793576952511548,"prev":null,"subject":"erc8004:5042:39592","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (302406 rows).

  1. 0x4fcdc7e79ccc0f5e0d89e261ecfe96a0426a771c604f1cabc68636655d0f7125
  2. 0x6a656bfeaf12a6e2eb3419f1c659db2d75c4fe5192ce84cfc5323eb4c00ede9e
  3. 0x84152b2c21d59fd2b6e1f61c0d248e3fea685c20f93264033ca889e3b24bb18c
  4. 0xb0b1184050fbd588a9986d6b03a6bf3edd7d331a826a70e23d2092097f61efa6
  5. 0x3f59308bd6521ed22db7babdfb7e3c5a138296ae913ff7fe75c37a3031fc85ef
  6. 0x5d5054d9f3c681d95be7729d4d49a84264e9d4087a3eaf91a80b7b6635d16617
  7. 0xb6a93180efaf89b04e80b1c150eae1901daa58cf42fc03c169011cc3f785a371
  8. 0xd32edef2b9cd34858845731782321c92ab2e325ec78924e7a8f0ceb3f7427ac3
  9. 0xd03fd0e889a598c8171795b28f5404c24fe573fa240ae63336346b2ce42137f6
  10. 0xbdbf8e0d5b2682efac3841f3a31e9deb4afdb7346e36e2149c4d18b28f677c83
  11. 0x8e920e6ac44707629e902b704090e2a1fad2910385ca50550aed0819456af882
  12. 0x21938c6c946f4b4fbc9debe25f5efc2591234f62b5e79a54d3dc9abe2154cc21
  13. 0x61ea1522e2a8dd1dbb4a7f6b4b6b4e9d2d75dad9c43bbf8d014ad3d2e55a77e7
  14. 0x4dd56cbe7671c2bd3ac1c5d78e38f1cd1c8a879b29f9a6a5b8a22555a3aedcd2
  15. 0x0e3f78943343406ddd3828dd4ca4b5a188e80ffe3ac87d64d979448ee11c1cc5
  16. 0x00ec7149eb024693951d82cb635dfa183f4f34dae011e77ba0420a38a378e0aa
  17. 0x97f6f39e601b6ef0e47b730aa0488b718c0d7882ad840342bbd7d3a705a1b3a2
  18. 0x1973893697931b7512ae5dc1a3c92ef92f633ae3574dce9029a35b5e94d2d364
  19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910
Day root
0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3
Chained
0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4
Published
On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90

How to check it · This row as JSON