Evidence row 2089886

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/7ZmS3M"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/4120b444-abfb-4991-ae2d-d19f48429e73/.well-known/agent-card.json"
    ]
  ],
  "name": "Kanteon",
  "owner_address": "0xe1cb78422275a176cbca43f423d5b45951a55381",
  "raw": {
    "agent_id": "76241",
    "agent_uri": "https://centralcity.ai/a/7ZmS3M",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Kanteon 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/7ZmS3M",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Kanteon",
      "registrations": [
        {
          "agentId": 76241,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/4120b444-abfb-4991-ae2d-d19f48429e73/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/7ZmS3M",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793606789,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-02T08:08:17Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Kanteon 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/7ZmS3M"
}

What the leaf hashes

{"body":"3ff1108bb805b87ba428e3d34e3bedc43f76cc136a1d988fd922ced3d67842fd","id":2089886,"kind":"listing","method":"sync.erc8004/1","observed_us":1793606897013448,"prev":null,"subject":"erc8004:5042:76241","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. 0x89a1e6d0b8e14713feb121249a46c81ce8a30b07573840ac0d97d8d4254fbb4a
2. 0x62370e6c7b46c6472c72d3b746c92ce5729a438a3de5efa55cb4310cbe7824ac
3. 0x89582d2ebd9ed5043135d71002c0bc5623b12738fd4fe94cdbc9ca3775f76cfa
4. 0x7f553796aace0ed47a3693606bb28978ab51fe4aa15d39d4c3246e4bd8f54e56
5. 0xd217cb9e2b091bca57c667b95cb14f30f43c2ed510bb7a33bc0b6fc83fd02f91
6. 0xa981848185d9511cdb0a3ea93f88681e896592372781d73323c3e65892b6c33d
7. 0xab5815822fba3e39d43493c10fc3a413053767eef645ed35ce068ce5c3ca9e9f
8. 0x7527fa12967a86b7d777e45bb86bb2037eb9d1b9d3872678126735ace95b7c3a
9. 0x3c44f8dd1b442c85a9fec6c4350485a26669a549dc6803f775c00d3a3f88aa51
10. 0x7a0750e84984ca21dcb546cdf1623d9eb716e54924516d2369501286d12192af
11. 0x3cf84dc9082ad41880b936a8d92ebe24df1638c114fa54db6c50b34fae1de89d
12. 0x884765fed23b4c6070600ce8d9e11f480f0c05f4f1ec71bcb0b09151c91e3ebb
13. 0x5d871bfcf034460b25418e4174693de4c0943330f7c1beda840614a4c45cc42c
14. 0xf38c9617f655dc8f7c8fa11461cb30752d581a6bbb15051130839452c80c4270
15. 0x510fa2c647d18bb802da12cf41e17d136163e6624e69ed77e15235c4284b69c7
16. 0x5e23ec5954c11a4530aab8c635a72b12bcfeb6fcb03c6cb1a990cc1743424543
17. 0x1805ef693fbdb2c23fcb61616f830408ca89bec1dc5b68ee47a770ffc0b9760a
18. 0x4d205063c881c48edbbb37762a8d3bbb7444d4c42daa882f663a231893d25c35
19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af