addrbookFor publishers
← The evidence ledger

Evidence row 1773183

Observed , by sync.erc8004/1.

Kind
listing
About
source_record erc8004:5042:9021
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
e6d79c69eee59aba1c323b99f7ada1d73216570a20bb70c6de0c6eaa81724856
Leaf
0xe2cd0e778df794ae8194a66a827dd6dcb912c31d0035f5577a38112d924b57f8

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/mmxETf"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/0b18c100-9268-410d-b46a-cd20f2e8f2be/.well-known/agent-card.json"
    ]
  ],
  "name": "Krempert",
  "owner_address": "0xf67d07d80fe666396e7ddfab369f03afefdab099",
  "raw": {
    "agent_id": "9021",
    "agent_uri": "https://centralcity.ai/a/mmxETf",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Krempert 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/mmxETf",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Krempert",
      "registrations": [
        {
          "agentId": 9021,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/0b18c100-9268-410d-b46a-cd20f2e8f2be/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/mmxETf",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793549315,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-01T16:09:30Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Krempert 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/mmxETf"
}

What the leaf hashes

{"body":"e6d79c69eee59aba1c323b99f7ada1d73216570a20bb70c6de0c6eaa81724856","id":1773183,"kind":"listing","method":"sync.erc8004/1","observed_us":1793549370197652,"prev":null,"subject":"erc8004:5042:9021","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. 0xe2ccf986835d507d1ed2b23dd4db91ab7152a02727540d829b5cd3788e3fb0a4
  2. 0x8e1c10d8b0955296ebe9073656eb14ca7cc89caf31759fc95c1a1a103d3fe28e
  3. 0x102bfee8e9d7cf2337fcd89511a91bcb72c14b72e91cb599b05a4c7503916325
  4. 0x579723dfb29c11879783a73455a99bfab06c49d6506bd97ae466461a20964cf4
  5. 0x6516f141ec5edf56adcdc3b9f55a1b82f0867bdc58cc783ff5e61f6a0475f934
  6. 0xeb93bd474e0d82c41ef81698c24d9d4cdec51ea5d3c55f41ef4090a5c8842675
  7. 0x1cbb1eba8ccd2f9be6ced6bfe0af8bfb3cb7a4c866c34c83578e653dc3e5c9b7
  8. 0x2e6cd1a09c06409b996aae0a4a75fa007627d8782f4b2333068a792f416086ba
  9. 0xb72155fc5870ca6bf0fb5316029c81fed2983f0a54966d1d6b9cdf874768fb4a
  10. 0x3cc20554703095c8e894e87b120b723b7a611be2c2bfc47302522316dd5df669
  11. 0x2de20f493130a51294a758075e0aea66668048139b2aa835e47cbd33453ff2b0
  12. 0xe7fd38eb5836ea92b3c740bc2f5fb1653bb77910129fc628b2af73e09c327a44
  13. 0xa567f95bd997bb1c25b24e0f3d37b6136018cb58573839158ad2a42dc344d758
  14. 0xf25ae803bf30c21cc73fca60cb3edf50df2a8c71b23bfe8c11bfe395b2367892
  15. 0xab7a3fc66c9797d0e63453ae08b7e56806e93e038fb5c65065ad1ba1e1d9114c
  16. 0x1023fddec22f7cf1aff98422f0e5714dcc4ca7df3408bb6d4550d6f770e5033a
  17. 0xf7af9137c03da92bdd37d086da37554097bcd1fce016f93f2e66d18b71970c5d
Day root
0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3
Chained
0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4
Published
On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90

How to check it · This row as JSON