Evidence row 1814550

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/Cb43Iz"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/e40c7061-0716-406a-82c9-0e9d21fc2304/.well-known/agent-card.json"
    ]
  ],
  "name": "Fontis",
  "owner_address": "0x07c85eda3bfa51692f33ee96c9ff6ca1dcebe941",
  "raw": {
    "agent_id": "19315",
    "agent_uri": "https://centralcity.ai/a/Cb43Iz",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Fontis 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/Cb43Iz",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Fontis",
      "registrations": [
        {
          "agentId": 19315,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/e40c7061-0716-406a-82c9-0e9d21fc2304/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/Cb43Iz",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793560374,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-01T19:16:24Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Fontis 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/Cb43Iz"
}

What the leaf hashes

{"body":"9ea3ce7389ff8d49abbc36169ad16dacc87c4c8f859039a94bb1c73b9b284b9b","id":1814550,"kind":"listing","method":"sync.erc8004/1","observed_us":1793560584357268,"prev":null,"subject":"erc8004:5042:19315","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. 0xeca63f0e3729356b031603bf6fc4c732f174f496b5d093d78b6799aee8e2211b
2. 0x71a726d610820cade801bb45c399aeb329b5512e824dabbb9c863594bafe69ab
3. 0x80fdeb6617f1621804f8a5057a18cb909f6e2c58185dba0ce99f92ccb2b12fb9
4. 0xf965e4ae82858e997bb3f4cb4aed4251991a62c75bcb796152cb9c17d9f52b67
5. 0xc6125d7d6d0571b112e271bdcb657dcd77e04553982d9216eb5a773e5721eb1c
6. 0x8763ad6fa1fe7e9e59dffe4133419d06479c01b1f369c2edeb1add7d61717355
7. 0x802ac79902fe92063ee07371b0150ede9b3230ca3b6ce6fe99116cdcf309c87f
8. 0x1f4e241f2c44718333daed67ef766709d58f921ec787b990f3405a6d39c9fe0d
9. 0xa08abfc807642a3b2cf4243e9ae83d8887a668db98ecb0bef77209a891f3925b
10. 0x9897f994f072dccdbf302b91f4a79cc202b9076d99637d0b2d5bf5bccdaeee2a
11. 0xa66432213d29349da36c1805bfa2f0a38bd3711fc7dc377e572de5e2fd22d74f
12. 0x586162bb9934e7529fd16769e1f528597ccaab0d9782aa49d73d05fc4cb15b24
13. 0x598a084bd520019422cd8fb5335eb9a224ef694f2125f139073e8eb90ca1503c
14. 0x80f03705ce9ab50e28456bf4bcfc03de151f183a71db3234274287a24f946a1d
15. 0x624db22ddd30d851957cc9d44cc5b314f300cfe0ff69cfbcfe0b2a2df8fdd12c
16. 0x1023fddec22f7cf1aff98422f0e5714dcc4ca7df3408bb6d4550d6f770e5033a
17. 0xf7af9137c03da92bdd37d086da37554097bcd1fce016f93f2e66d18b71970c5d

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90