Evidence row 2724642

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/5FFTqA"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/c776c5f1-b9ae-4cda-bdb2-7c94b94bcd26/.well-known/agent-card.json"
    ]
  ],
  "name": "Kostik",
  "owner_address": "0x12922ecaafe69e558e08bb0adf7f72a2381e88a4",
  "raw": {
    "agent_id": "210246",
    "agent_uri": "https://centralcity.ai/a/5FFTqA",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Kostik 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/5FFTqA",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Kostik",
      "registrations": [],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/c776c5f1-b9ae-4cda-bdb2-7c94b94bcd26/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/5FFTqA",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-03T23:02:34Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Kostik 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/5FFTqA"
}

What the leaf hashes

{"body":"3e5bda4c12ba879ba00a692c864543f2cc93447868a64e8157cdd8f07f2d9917","id":2724642,"kind":"listing","method":"sync.erc8004/1","observed_us":1793746954673868,"prev":null,"subject":"erc8004:5042:210246","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-03 (425475 rows).

1. 0xa09f3fc3e5fc80650c28507f9f3598264dad029ae31d2ca2911da344da03d781
2. 0x5b26d61f8cad911b58dfcd2b6f07f808315b5d2ae995167125234447ae1f1729
3. 0x28a29ccddaed0b9414408cafe142bb1189fbb0e58e0ebf265c7ae0f1222963fc
4. 0xb5fe09fb5e96f4f49d21fe02f43857e8f2023b078cf68995304032082faad6ab
5. 0xde3e0fd88099242d70d413b271413014015ceff563ac4f20707b8d66ae3d69d1
6. 0x68c35aa58248d0891ef5221c14f73363ef0ee2269b43719bf1cfb627be97afa8
7. 0x8d8ff76bed64363aa6b74d87adcb3299995b8b04b949093a2fe46d9e14ca4ffd
8. 0x9155136e76ea56499751d1b68cb96405c42d89601b2c36c624bc59699c005d1c
9. 0xba3b3175e2fd8a898726b9a4b71472de6109b65eb4f80851e5e98b77e5e1ad8a
10. 0x3476c84743d51de95f443617f53d89b6baeb23163239abbcb842b1f9f11ada43
11. 0x5de89adbd23b8ece6ca055bd6c6d15ccbb3285338cdd7ae15b2f673a746d53db
12. 0x528056a6e5b3285f885b64f1c889c2e09c3436787f2e98991fdee22ac445a74f
13. 0xf28d67782c92bef914bcbfba8a09fe25600ef28046c4bb2c25d01c0f921a6c77
14. 0xe49428eac50d81f1f7650588e082bd418a927c143f69fb66decc0ace1ad681d0
15. 0xc8c3351be4f517ca5732d6f5ee3d1d64170b8e4410d31b9c614949031fbc07a0
16. 0xdbc1c0882584cff2eba84dcd18af41b5fd070127c962a21b00db1ec3e352cc94
17. 0x39dab39081985bbfffe23b080399a9d1a9cb9c2c8960102350c4212113cb2cba
18. 0xac5402954216dc6c7020a6405675c8fc3b0828c2ab02943d80de52677a2f1fc3
19. 0x85f3a27c16056a361d9ba33355a575ca7123f86de901b204c88953c4b8ea441a

Day root

0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a

Chained

0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43

Published

On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7