Evidence row 1756388

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/0Gj0Ds"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/0d644f00-12c8-4940-8890-b30ae93f9487/.well-known/agent-card.json"
    ]
  ],
  "name": "Mater87",
  "owner_address": "0x7ecee6c9afc83d5cbb638df053fc6d941bbc5b7c",
  "raw": {
    "agent_id": "3432",
    "agent_uri": "https://centralcity.ai/a/0Gj0Ds",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Mater87 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/0Gj0Ds",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Mater87",
      "registrations": [
        {
          "agentId": 3432,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/0d644f00-12c8-4940-8890-b30ae93f9487/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/0Gj0Ds",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793526732,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-01T09:53:41Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Mater87 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/0Gj0Ds"
}

What the leaf hashes

{"body":"672a1112079aedb8ef4804898b92dbbc0d2b191d7e39fcf0b6cb67cd9abe22ad","id":1756388,"kind":"listing","method":"sync.erc8004/1","observed_us":1793526821932611,"prev":null,"subject":"erc8004:5042:3432","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. 0xe74cb0e81243d66ff63c1ae518c299cf040dec1dbe7ae1064a55f807197b4ecc
2. 0x4f265c2acc3f53d4ce7ee6df016ebf966180db59206e0fb12a4eb94f27d1d33f
3. 0xfc5e3255e9f554def74fa04ab911541162a708c2138e7719944fe3c550cb16c1
4. 0xd665bc5d19bb07dae2e7981719336c0fb7902153e983a7f123fb57458413cba8
5. 0x1bfcdd94d1b4897a57676e837a4655c993a5327c3c39f10af69bf2cd7a6044eb
6. 0x0ea9c12c34c37ae03ad1014d0c36713a55db76547a13b9c2da34e64556889ed5
7. 0x74d2d602f30a0b5c585ec2280a0539631b672a54a6fb540c49c71b29a81c2697
8. 0x5923efaddceb2a613abe912d47e513b087fb2cf6bbc1b0a4034891dfc25f68ef
9. 0x2bb1bf485b0494d0dbc87079ddab1f9ceccbda1a4f03d46d403f4ba5b59d6b79
10. 0x98e258c45ff89cda8ec8cc52d8eec08185424984023ff75aa095dd48ea582b20
11. 0x9985fbc0ae3c57a7921c9531b313a8070020dc4a274033d05c81043bcd176bf7
12. 0x88f388e99f620f52463bef8e2a864310e2482a28431e205d9b1869498e75a162
13. 0x2d4c132f554f691978e574150c9c62f9035c2116f17d214b64785e8513cda423
14. 0x08ed21745c44c46e78fecd46aa9c74f653629b2db356d3eb07ea5f89f52ed2ee
15. 0xab7a3fc66c9797d0e63453ae08b7e56806e93e038fb5c65065ad1ba1e1d9114c
16. 0x1023fddec22f7cf1aff98422f0e5714dcc4ca7df3408bb6d4550d6f770e5033a
17. 0xf7af9137c03da92bdd37d086da37554097bcd1fce016f93f2e66d18b71970c5d

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90