Evidence row 1821270

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/54M6Ly"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/1693c90b-ad7a-4b7d-9931-4e79ca15e161/.well-known/agent-card.json"
    ]
  ],
  "name": "Huvino",
  "owner_address": "0x49cb0b4d2f4264cf4a0292344b657f0bf5ae1801",
  "raw": {
    "agent_id": "23355",
    "agent_uri": "https://centralcity.ai/a/54M6Ly",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Huvino 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/54M6Ly",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Huvino",
      "registrations": [
        {
          "agentId": 23355,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/1693c90b-ad7a-4b7d-9931-4e79ca15e161/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/54M6Ly",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793564027,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-01T20:18:15Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Huvino 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/54M6Ly"
}

What the leaf hashes

{"body":"443daba83a44d24dc9ebbd12ef53c1a09fd5075f51ce22a334993eac433a2991","id":1821270,"kind":"listing","method":"sync.erc8004/1","observed_us":1793564295894581,"prev":null,"subject":"erc8004:5042:23355","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. 0xf488b70d9b01d8b6aa13c94694cac296e33c1e8d944bca4e887261ae62267364
2. 0x7b822c1cd26ed1798decf3a21966c82426a23058c705276ac5716d14427c0acb
3. 0xc710fd48ad027fa07ae23c926f64c6866afd8f4db234429b411e4f8438ee21ea
4. 0x545c31139cf3db2861abb3af59023dcb85613671db3798516afaad8ac10713ad
5. 0xd4bdbd341c29ddeba2fbe0689f49c77aabb50cd0dd8b71f9efad895c7bef7746
6. 0xa029080d3822619f137ef2826066eb9e09085ed96bd699a8e0b2bb31801d8c2b
7. 0x0b580dad8d74546f0e9f91299f7960cf8f3aaf1648620f6848b0e6e364b77978
8. 0x35eb0690cba326b002303273cdc9b32361a6a0420a06789007a071af3f34f87e
9. 0x17bb50ed33eed5583b6469bb8320478eb68e4a28b41de13d90adea13ec7b4630
10. 0xf02d5c84c288637d91beae0219c690f0225ecc8efac6b550bba40a3f0080340d
11. 0x987031ca9675b3f63a997d4f24981e2f0002159e1b6ccf4226bed4eb814723ab
12. 0x1278391fa22e576ce5c6362c943edc1a68b9a92ac18bff7789f8a082a7b194c5
13. 0x0c23c9192bfe154b4061fe80d841228e518702b191bcc9803922e60782f4706b
14. 0x9b4eda8f413d128915df51c98c771c8ee622b35a4252b9c2a803dd51ad66d4c8
15. 0x624db22ddd30d851957cc9d44cc5b314f300cfe0ff69cfbcfe0b2a2df8fdd12c
16. 0x1023fddec22f7cf1aff98422f0e5714dcc4ca7df3408bb6d4550d6f770e5033a
17. 0xf7af9137c03da92bdd37d086da37554097bcd1fce016f93f2e66d18b71970c5d

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90