Evidence row 1820827

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/GUQRwU"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/19eab838-0872-4dde-b624-e6bc6a440d74/.well-known/agent-card.json"
    ]
  ],
  "name": "Seibert",
  "owner_address": "0xb3a15fbc991e609887cd6fb54b4abb42315f9ca4",
  "raw": {
    "agent_id": "23207",
    "agent_uri": "https://centralcity.ai/a/GUQRwU",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Seibert 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/GUQRwU",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Seibert",
      "registrations": [
        {
          "agentId": 23207,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/19eab838-0872-4dde-b624-e6bc6a440d74/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/GUQRwU",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793563913,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-01T20:12:35Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Seibert 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/GUQRwU"
}

What the leaf hashes

{"body":"a4fd07ed0d5978d333a9fde9392d9f940e1196abbc39ad0dccc3debf4f97db57","id":1820827,"kind":"listing","method":"sync.erc8004/1","observed_us":1793563955711959,"prev":null,"subject":"erc8004:5042:23207","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-01 (302406 rows).

1. 0xe2cfc49ef052672ef589ca9724044d5703a7cc0d2c5e64746a96e3ebfc8552f3
2. 0x7329e9412a31881969cbbf4c50074b4633710756a31f94623c83b3f31830c524
3. 0x30182e49eaee07d82a957aff814216aad6ae30a93ecb3c1cb2bc0ea7b80a48ff
4. 0xb12b0c69d0896fa7e9147629f715ba482600705d5c0d5ac88d445f90314cf760
5. 0xac8b13cde77a12ef24e9f3d80040a2058cb317ff210bc19fbf705296d51c0128
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