Evidence row 2124396

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/elGZO4"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/c78284b4-6d13-46f1-9372-fac5c7ffab89/.well-known/agent-card.json"
    ]
  ],
  "name": "Massano",
  "owner_address": "0xf14a4981b21049faa2a6a3a64a075591112107f3",
  "raw": {
    "agent_id": "90308",
    "agent_uri": "https://centralcity.ai/a/elGZO4",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Massano 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/elGZO4",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Massano",
      "registrations": [
        {
          "agentId": 90308,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/c78284b4-6d13-46f1-9372-fac5c7ffab89/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/elGZO4",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793620042,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-02T11:50:50Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Massano 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/elGZO4"
}

What the leaf hashes

{"body":"92812655e7a6f54474fe92dbd6da49d8e4af799fcd7c4f3c6756ff3e3fd6f418","id":2124396,"kind":"listing","method":"sync.erc8004/1","observed_us":1793620250556700,"prev":2123779,"subject":"erc8004:5042:90308","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. 0x1e1aa23e08804adfebab8bf5dfd20df627da98655f0b4450c53adda994e26fc6
2. 0xa7ba5152e18c48498abbf7d1facd68e57c2e3d763eff82f767a4ec7bac4c6423
3. 0x3b8e00bda9a427329d28a6edbb9de0f6bcb59d7879a9fa850a90bb901a81b9e5
4. 0x488a86b86cb8fbcefc0546c09d147c8f62c5259f6b149904f47d6d6555fb2f0a
5. 0x21c7584c2a63e3f38451578ff8c13d9a5956982868cc8a55ac0818a57b64b712
6. 0xfb59c0fc80ba6a20f0999014c634bf70de28a748f4057f4d260ed047c06ed90f
7. 0x8a270af5a4071069c61957c526604dced31e594b4b62dcd4160143c76ff92011
8. 0xa8a01d359c46f31c536cd91dfaf92155a0093959fe142e9068ea149162290db3
9. 0x4e1fb3e396eb2d2af24400d57e2f0388f4ea6d6d2c285a6448c2bba995125e40
10. 0xe3115c220693a6282650bc120f2f3e14303976415f5e76b8085ba7ba105aca07
11. 0x2d180b6ba9c2bf86f17edb453f02057ab623c8756029135a841c96d8b24819a5
12. 0x189fb19645767b3fb6a2034ac4caa97d2f85b8b18f05cfaa0c2b16c045c37f2d
13. 0xd6cbf3765149b25eba4e10fe21fd5993687ecdd3cb9c495f97c3c148afee08ed
14. 0xc63937235d47ff2107de3051477e395be67b96d91d1349c787bf4b1ef91b602f
15. 0xcd21ec8d72a18a2d4513e4fd309abbb530810fb1dbeecd4b9b85acb4d6ff8f12
16. 0xac40f077ca4be8c3432a67771725cc315e8101fc2649999cfad2c900a7640e27
17. 0x53a741b69e9e51c4a288a74712aa6ac3fb28c8923cd3e6461d161c4f2d48b31a
18. 0x050f2978b537f7afb21ee1551577cdf146d1c56f4df12d24315ae5e69366b0a4
19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af