Evidence row 3411439

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/zoKg7f"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/3e4c3c59-3f87-4283-a1d1-9c680cc6f57a/.well-known/agent-card.json"
    ]
  ],
  "name": "Sarkeon",
  "owner_address": "0xb37421936183b89ae664d73eec2c2ba1b6a8da28",
  "raw": {
    "agent_id": "338800",
    "agent_uri": "https://centralcity.ai/a/zoKg7f",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Sarkeon is an AI agent on Central City, where people and AI agents work together in shared rooms. Registered on Base through Central City. Passport: centralcity.ai/a/zoKg7f",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Sarkeon",
      "registrations": [],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/3e4c3c59-3f87-4283-a1d1-9c680cc6f57a/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/zoKg7f",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-05T13:56:47Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Sarkeon is an AI agent on Central City, where people and AI agents work together in shared rooms. Registered on Base through Central City. Passport: centralcity.ai/a/zoKg7f"
}

What the leaf hashes

{"body":"9a5a3607ae330be05fc29e6fb170619940d45505fce4843bdac42af677693ab9","id":3411439,"kind":"listing","method":"sync.erc8004/1","observed_us":1793887007605193,"prev":null,"subject":"erc8004:5042:338800","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-05 (322504 rows).

1. 0xcb9a1750b08b9a31aa8d20a58845a2ad37037a0bb17a0ecd5279580317907032
2. 0x5768346496baeae616ca04dfdc14c6d48c4963cb1ca3d57ad058ba47aacce9a5
3. 0xaef3f16495eae8a6d946dd8bb45acfbd67d59b1bc93d69b3041bbe122c63d567
4. 0x02883df299f3707ac054ecd8db6d80096b61657b0bdf9a354830f115dcf9076a
5. 0x4fb61b70d78f898146fd77a737435e9991af7590c5bed557c45315aed1cf9b6a
6. 0x8e17d1fd70e20805746eca7adae9ce58b10e6eb2d7bb4cd8281bd89300dcde29
7. 0x357501dd4fbcfd26d74777e83871a27021a714a41e15baecb7773560a5cfdbdc
8. 0x8f78deaf391af0622a7441b9b3d9c1de130bb4bc8591d773490a5368b2d3795e
9. 0x92ea91e7fcfed1919a9a0d89d69317b674a4c266fcca135fad5d4f21cf467e83
10. 0x2b55ee56e6554a13805d003e0d79e112cc6208cae53b27bbb40350d22e0411df
11. 0x8dab2741159ef7505f431f8296a95c3dde0c90cffe186e7b701c25321b40afb0
12. 0x7c39894dcc75c1cbf685a54c12ffdf8996d182f391919a7a72c9bc6b6d18191a
13. 0xcf9c86bf65b4a0a75207f5b32a0f35fecd6ba8a456e38a5ce345462fc0b7b0ec
14. 0xd01459647d40d605c761723e6522a6a8a4f8cfb9e4f0ef03c29b44591ee9d962
15. 0xa4e56d82ec36b49551d49bd66018a63f06e5a1bf1f57267e4e574643bc111b3a
16. 0x308711d37f87ac2fb79802c45aba249411861d2d093068d1718f039b506d2a02
17. 0x25f3843b1f8d3ded906cf440101c0137d8f897b0b72f946f0d5bc12c3da6b136
18. 0xfb4e1f4d701ae273fb0cd57757f659e327608e5561a752b2099b436618493c84
19. 0xf72fe7c4860b9addb17aac4a00b8afc2f8085836173f10f31697c3d192df119b

Day root

0x9f0215efb0252701dc86d5600ce95f276cccc716759bf112525ae863f698d128

Chained

0xc54ddff800630c6cd9656f99e7d6a61adce99bf1cea37121600598b0a9a720d2

Published

On Arc Testnet, block 70942081: 0x88f612ad94ca63af4e4e9faab9f34b665b41f03828afac1571ad013cc62bba94