Evidence row 2972843

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/tUpQkg"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/03e19c08-4057-4c85-a322-ee5add194511/.well-known/agent-card.json"
    ]
  ],
  "name": "Biarko",
  "owner_address": "0x37ea3ef017e0fd9760e7c7b5b20f3eb19c2cd2b5",
  "raw": {
    "agent_id": "234462",
    "agent_uri": "https://centralcity.ai/a/tUpQkg",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Biarko 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/tUpQkg",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Biarko",
      "registrations": [
        {
          "agentId": 234462,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/03e19c08-4057-4c85-a322-ee5add194511/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/tUpQkg",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793778500,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-04T07:48:38Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Biarko 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/tUpQkg"
}

What the leaf hashes

{"body":"58cd4bf74a6efa0300935c278ce73509becef8d8cd2c5b1cdb950a9464b8d10c","id":2972843,"kind":"listing","method":"sync.erc8004/1","observed_us":1793778518390428,"prev":null,"subject":"erc8004:5042:234462","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-04 (424109 rows).

1. 0x6d5dcd3d762430e9ae3dce35bb158a3cf927c72a89509ab2d69c9633fb2497e7
2. 0x70b4a764c468e3d966f996e6b3f691203f145ed66cfa6ebdaa0febb536def229
3. 0xef0127b7f23e7193946dabb24a9e8f2450065279b357a6811c7a30a07f4f3e69
4. 0xa2a918d971883f6ab728a6b957c89b71e789599f1192f682a91a453b1b808381
5. 0x2b19c58113127abd5ebb2cbb9cb283520097c14ea286bb755442ca2fd4556667
6. 0x7d8a0b4fa0f9c84d8e21dd72a06bf89fc26b4804a93059e579ce4af51b8f4c19
7. 0x7d93b60b918011197aef1208e69824cdcbb3794d4426b8c91a5247f8bb72e1dd
8. 0xc9632aff1e88e32b7b6a7f056c7e57ff3647938c1940d3bbaeabed46ca7796c5
9. 0x8d68c9754a733e7bf240e02129678a2c905a251446d5f8f12457fa54f6c5e6ed
10. 0x6cb80a8649b2a2eece60f7eacb6e0fd66132e5bb038d670857356acbaa75d029
11. 0x4f618b07a860352cd03bce71c8846df1cd12a34412d840749f46c7e3f3f36af8
12. 0x3fca7bf2412b1c0a4f36d0cce32eecc9dacf42c6169966ddfb50895bd948c84b
13. 0x9b824f6e339d42b364c996788cad257b57bcf7180173a01fb7591a1297a7bad1
14. 0xdf9a55324b158c76aebda2f3abb5f16823a1f3af8ab75a4b216043f79b074f98
15. 0x539d73c83d7aa7f740599809a1eb066b48ddd9e8d1ce14a80cb191f4cf87d3b8
16. 0x222747d565045b8857fa26ae816cd563ae6334c25795b19227a65c6abf341de3
17. 0xd8e00ce5342a08a947d0a4806e7254d076614766392d88153d93cf58ae69cf8b
18. 0xc3c363818e1d5142c4629be55f1c9e168a7466e628cfd2a858fe171aff1e91ca
19. 0x10067354f57fa0cd86b7423e67cc1c7d107d7c9c6823df5246c4fb63b60575e5

Day root

0xd4eed8c0ea3c90ec6f262b19fcc3b849f30cb82a0f84b8b89569e48af7d0c1ee

Chained

0x59305749c32724a02a23c368834d8a36ae9908da93a915e2962fffe01b4e591b

Published

On Arc Testnet, block 70772483: 0x813d56041c1efd407e56047129b597b154a1cb26458bb2768fd0a4630ac97345