Evidence row 2716116

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/fFtgWD"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/f1c0bf08-affd-4a86-b675-bcbe1ee2b034/.well-known/agent-card.json"
    ]
  ],
  "name": "Histeon",
  "owner_address": "0x4facd39ded8a484c5ba514151caac106a29a8869",
  "raw": {
    "agent_id": "205823",
    "agent_uri": "https://centralcity.ai/a/fFtgWD",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Histeon 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/fFtgWD",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Histeon",
      "registrations": [
        {
          "agentId": 205823,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/f1c0bf08-affd-4a86-b675-bcbe1ee2b034/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/fFtgWD",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793741397,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-03T21:32:54Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Histeon 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/fFtgWD"
}

What the leaf hashes

{"body":"ea0227b1712a920455c51ac9f926468dfd22f796fd0bb5353a126f71d65722c9","id":2716116,"kind":"listing","method":"sync.erc8004/1","observed_us":1793741574304081,"prev":2715749,"subject":"erc8004:5042:205823","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. 0xaf9f1d4bd8511c04b66df865c942ef32f564b6fbca7c59689c4cd91f82577acf
2. 0xd76024c9d37370f1d8f025e5c8ca8e77b5a6238db26b185d0015e989b67f3392
3. 0xd182c494cc7cca14c832f62d1645305b5b07a61298d2292392e739c7bab5dae6
4. 0x62763b68f51b032e2bdb5947aa1f5d89607ee561d4f7b2d6bd4e6fd5473ace19
5. 0xdc247ce377ea028a7d73fbc0f562762b7372158c00b7623487388d858cfea91b
6. 0x08227271cf8b8d22e34715c3023fecae9d47321e2fef36998a2491b37c81494c
7. 0x23ec2fcb6ebd9037d355907518c34c3595313caa066411205ac0df86d207c28b
8. 0xc17deeacee2aecb0cefa2bab3bbe9524bd605c9d1c11f9fd2a9796f04eefdeb9
9. 0x598ddba21471f128a77d6c0a78c8ac908c2bb127a6fddc74d07035f274e32d8c
10. 0xf990858ebfb2cb130ecd934f9afda5a2536f9fae9b30b46f70f9e39378b8f5f6
11. 0x144347167b2284f85e885743d9d6e9b760b5dba5d7646ac6b040a37d32a0e9b9
12. 0xe76f791089ba448cf5c37346afb8fe5ee2f3f91391fde676597825bbe36679a0
13. 0xe77cb660ad4fc9cdf06388820598606d0cfed52a41772cd9d2f56246f2635e96
14. 0x11934b37b54663f98169a4c48cc2b0a60fa4a3c4018d1ce3e508ac01ae614249
15. 0xa538822e863ef8366c4eb66bf75faf8a639aa1f066f65f7444fa54d54d48ec53
16. 0xdbc1c0882584cff2eba84dcd18af41b5fd070127c962a21b00db1ec3e352cc94
17. 0x39dab39081985bbfffe23b080399a9d1a9cb9c2c8960102350c4212113cb2cba
18. 0xac5402954216dc6c7020a6405675c8fc3b0828c2ab02943d80de52677a2f1fc3
19. 0x85f3a27c16056a361d9ba33355a575ca7123f86de901b204c88953c4b8ea441a

Day root

0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a

Chained

0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43

Published

On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7