Evidence row 3346764

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/H6ZJIu"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/a89ab4e1-fd0f-4f89-8c98-b455ab2496bc/.well-known/agent-card.json"
    ]
  ],
  "name": "Klasser",
  "owner_address": "0x381ca52b40449ce00f24a5f6b50442834c060576",
  "raw": {
    "agent_id": "316881",
    "agent_uri": "https://centralcity.ai/a/H6ZJIu",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Klasser 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/H6ZJIu",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Klasser",
      "registrations": [],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/a89ab4e1-fd0f-4f89-8c98-b455ab2496bc/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/H6ZJIu",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-05T01:19:43Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Klasser 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/H6ZJIu"
}

What the leaf hashes

{"body":"c126fadbbf40991345160907cc03c280454cdcbbbac39c53e17ea87b54c52214","id":3346764,"kind":"listing","method":"sync.erc8004/1","observed_us":1793841583955836,"prev":null,"subject":"erc8004:5042:316881","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-05 (322504 rows).

1. 0xd5dd213e8a73d18ef3a534ccff00740bb108913ee36b33766f4c4fd75377132c
2. 0xb86ccf27bc0f8b7b1519c0a339af34ea207b29c8d0b0b94aeec2e715b656a418
3. 0x552619824439cccb616ad8c3c0b9ec99f874d6718e3ea8dc6b370fa7acf1eaf4
4. 0x18c49d8b2b8053497b69c2d0f3ed26b2e9e038b309ea80f171234d306a088ccb
5. 0x5a8b2ce99c87c4938435b75a70c7c9b281bf34841d62c01020ffbf74a7afb694
6. 0xf6a0a93e3ef67a1ba83a808a24a05e56aeaca1780062bb68004ae5e2ab48dcfc
7. 0x6a796a13a308f8f6b8ab8e55c24056f5c2bb5e4922c02652dc3fe4941f8f2010
8. 0x618d2cb65f1514706d1281b721b67e0f5aafe58443aa9eea55308174fae2312c
9. 0x2c5d139f01540e096909dc853057bfbebbf1451a97cc5576b604064b160be3a2
10. 0x973403759f894c681089e904771fddde0f0f1b92c876000f5d66f4d06c5d9542
11. 0xaa93909567199f6fdb80604996c12fd935cc1e041185f0467176562b34dc5793
12. 0xb9dc2ba9768d347d8450ac94ca7fa05eefa4b4b7949253813397996bd098b63b
13. 0xc98ea9e7a31315529c80bf8f8a649e06ea1b1b599b9fcf599a46b2653a85c322
14. 0x4c7b7f3f42e860af0292451afd96bceb26eb41ca5c810766a3ab2c07c3919b93
15. 0x84cc0709bdcf43a76bb38852cd824bccc42d1167214eaa0cc6f5136bc9060566
16. 0x706c875c10714e921f12357b889e8f8c61b62dcf68745f3b7e23aa127226e76c
17. 0x595efddb5b196a921c775c54d0aa541065f1802bfefb8bd003a60b16925c4b58

Day root

0x9f0215efb0252701dc86d5600ce95f276cccc716759bf112525ae863f698d128

Chained

0xc54ddff800630c6cd9656f99e7d6a61adce99bf1cea37121600598b0a9a720d2

Published

On Arc Testnet, block 70942081: 0x88f612ad94ca63af4e4e9faab9f34b665b41f03828afac1571ad013cc62bba94