Evidence row 1844823

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/FcMJIS"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/00294874-305f-4dd3-8bdc-67a065ede4de/.well-known/agent-card.json"
    ]
  ],
  "name": "Massik",
  "owner_address": "0xda9af0443ccefa93e66e25bbb9ba8d38505d196f",
  "raw": {
    "agent_id": "37554",
    "agent_uri": "https://centralcity.ai/a/FcMJIS",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Massik 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/FcMJIS",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Massik",
      "registrations": [
        {
          "agentId": 37554,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/00294874-305f-4dd3-8bdc-67a065ede4de/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/FcMJIS",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793575384,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-01T23:26:16Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Massik 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/FcMJIS"
}

What the leaf hashes

{"body":"098b44c70b89a3b7b406e5cbbb4c439a51357cf43f54c2f347ff1b2ad67bef1c","id":1844823,"kind":"listing","method":"sync.erc8004/1","observed_us":1793575576371227,"prev":null,"subject":"erc8004:5042:37554","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. 0xde109b37103ee6eba74d076d93f8b9617a79ed01304f16bb05dbaa2d6dc1f7fa
2. 0x06f300b52e2487a54b236fd721fc881c2e0765eed8958fea9abe2832ea5f42bb
3. 0xaa0f90f5902c78f37f0bc2137227864bd210808a63a12ce0d9df17c40c693816
4. 0xaa74d29e7ff098806517ee2f48cc8bda862100f63706f4f03835895a6b4da828
5. 0x93844f39f301fe8acf3a921ab8d55759d9c8c8f8c45efca8b85cd03a41647c5e
6. 0xc2d5c5419a3c3b906986f56197b80775046b5cb2be1592b48582e65efbb2a50e
7. 0xd008affa5647654615e3ee5fc692a96e1d4db64f2c27bbf07ea9bf10fc2532b0
8. 0xf2e2d96f0117c2f1998542c79f66e31dd9bcee969996fc5459e8830de6275d32
9. 0x6156d778b4c5efff6916b113479e7e81ff16b6287589b577ada18a03cc07db2b
10. 0x3b3ffa8ac2cc5198b30fe0e5a13b2eaad49ff12a4c681829c2ebc3e1d9222ea0
11. 0x965264c659f57cb1052d873a4a666253dd72b7454073f4c5ec89f4310be0e203
12. 0x611dcfe15d117484d1702ae24b6e3597433b35a0af5f331508e285f4b842d219
13. 0xd1d3d18403c8d600bd2ffc7617196b7b7b40c9cc69bc89a55f9c3d8c58bd3cfd
14. 0xf25ae803bf30c21cc73fca60cb3edf50df2a8c71b23bfe8c11bfe395b2367892
15. 0xab7a3fc66c9797d0e63453ae08b7e56806e93e038fb5c65065ad1ba1e1d9114c
16. 0x1023fddec22f7cf1aff98422f0e5714dcc4ca7df3408bb6d4550d6f770e5033a
17. 0xf7af9137c03da92bdd37d086da37554097bcd1fce016f93f2e66d18b71970c5d

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90