Evidence row 2166421

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/FD8lzl"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/519f015e-418e-455f-aa56-e6146d3f800b/.well-known/agent-card.json"
    ]
  ],
  "name": "Hosik",
  "owner_address": "0x9c99f5b4c2a69f66a735aae069b698931ca22ce2",
  "raw": {
    "agent_id": "108400",
    "agent_uri": "https://centralcity.ai/a/FD8lzl",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Hosik 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/FD8lzl",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Hosik",
      "registrations": [
        {
          "agentId": 108400,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/519f015e-418e-455f-aa56-e6146d3f800b/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/FD8lzl",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793634151,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-02T15:48:46Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Hosik 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/FD8lzl"
}

What the leaf hashes

{"body":"0895533553207296d16db8c0a1a1b181acbad2ce3abb692c621eb6c67bbf8bc6","id":2166421,"kind":"listing","method":"sync.erc8004/1","observed_us":1793634526138008,"prev":2165927,"subject":"erc8004:5042:108400","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-02 (444186 rows).

1. 0xee3b0fd203dd1680d5cc71313e3dde08ce93ff8724733a4da1e0ec0a88431a83
2. 0x13de728e1bdc79a7c7c3af1dda9ee0a33bd8ba8f6e9b8d5a768ffb82d144e087
3. 0x0c3676615d736ea70849c8d6ecdbf8f150f762fecea008b7c6a9561543ab2d82
4. 0x3d463534fdde98478c667e6c13bbb806d385643fa28b4c36647e7916e16b3b46
5. 0x48bb8bb542846262ba4a81bc12c19e0d63d719e0ae42cc3bfe44cb17ed20734d
6. 0x04f06a35935c7c2b3503601d8670ad7275a5b90f9ada0854608a3c6bc54d726c
7. 0x834664da0bb3681c0f841a01a7259bbfecfd84d50c64781d67173ceeabc46bc2
8. 0x3a1a00709e792088856e716ce0540d3666d7e3f97262bb468c40ac084ef35aa8
9. 0xe60441cd2d9a8052fee7e1053aaea793ba3d46fd160709713799cf24467cdeb0
10. 0xd601d517ca4ee4e6d71c4d03ed97228900ea403ab4acd8ad71ff60deca2cd10f
11. 0x3e8e0a80d0d1e6892613c589815216d3f150228df9977c0e1624cab3ea6ebfdc
12. 0x81186f1d3fe58c5a37fc5a986c2e4440f453481f9e7d23a13c45f48adcec0bb2
13. 0x56222576ccb9eb1523f81d1cc3cad919b4c5bb42ade03a1c402e7008640051ad
14. 0xbb465466dac90179fd91fd4d3b6985e80736d1ab4662dc57a78b5e5098d6f074
15. 0xde6a8fd6590b70565baa6078cbc8add8d94950fe959ebaf8c3716adcdbd78aa8
16. 0x6dd7e4db65395e8670c7c2747d44fec79e03305934ef4746bf5dbca04ec6ec49
17. 0xec5d643575d83c9e07e65deeef71943b53cbf3007e7e2b9a6ef414081509b0cc
18. 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af