Evidence row 800048

What was observed

{
  "endpoints": [],
  "name": "FinancialDataAgent",
  "owner_address": "0x29566e53136f50a3f93ceb3d336db89e73c03306",
  "raw": {
    "agent_id": "2841",
    "agent_uri": "https://arc-studio-8d53b7238bae4af6bbfb806d.vercel.app/api/agent/card",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Autonomous AI agent that computes financial metrics (volatility, Sharpe ratio, beta, RSI) for any asset. Each query costs 0.001 USDC, settled via Circle Gateway Nanopayments on Arc Mainnet.",
      "name": "FinancialDataAgent",
      "registrations": [
        {
          "agentId": 2841,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "sellerAddress": "0x29566e53136f50A3F93ceB3d336DB89E73c03306",
      "services": [
        {
          "endpoint": "/api/agent/query",
          "name": "FinancialQuery",
          "schema": {
            "request": {
              "asset": "string — ticker symbol e.g. BTC, ETH, SOL",
              "metric": "string — volatility | return | sharpe | beta | volume | price | rsi",
              "period": "string — 7d | 30d | 90d | 1y"
            },
            "response": {
              "agentId": "string",
              "asset": "string",
              "computedAt": "ISO-8601 timestamp",
              "confidence": "number 0-100",
              "metric": "string",
              "period": "string",
              "settlementVerified": "boolean",
              "unit": "string",
              "value": "number"
            }
          },
          "version": "1.0.0"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "x402Price": "0.001 USDC",
      "x402Support": true
    },
    "registration_fetch": {
      "at": "2026-10-28T20:07:31Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Autonomous AI agent that computes financial metrics (volatility, Sharpe ratio, beta, RSI) for any asset. Each query costs 0.001 USDC, settled via Circle Gateway Nanopayments on Arc Mainnet."
}

What the leaf hashes

{"body":"04b3e6755c9ed1c0a5292e87ce53bdbc45967cef00ae1fb8f00149afb49176ed","id":800048,"kind":"listing","method":"sync.erc8004/1","observed_us":1793218051042165,"prev":780614,"subject":"erc8004:5042:2841","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-28 (231336 rows).

1. 0x13134694d693feae7714e5de458576cbb2c8ccbdc267937fa989e72417bdf969
2. 0x7fa89ebd5ba1042e0b23786fdac005a83c37f20df6f4370bbd440bfae9d6e4ef
3. 0x3c5560cd7e17b6bb32734dfa5fe962ef936ace7fa54e94938bfc50c0ca2d3cb2
4. 0x151d59f3453b9f8a3642d668d2d0899d5fd223fd83eda1dfc4c3b2a5314aa70a
5. 0x35e2595c013019c921bbfe0f0d663a4105c48fe23e14b8442548c7c8c30b62f8
6. 0xecb8c4b9bfb65d7ba198d0337c00891df8d6d650cbe4c34a8143e642dbfc6603
7. 0x185e9a643a8229ef2f1bf9bfedc84dc5200c2718ae59de972015f60f21011372
8. 0x198afa4044e98f9296ff111d1f134f33acbc882df998b75a99a6cd56515aaa94
9. 0x0cfa22c177ad6064f82a0728647945f2097580e868b7511b1897ab4b5a5a6ad2
10. 0x22a0dc1f97231eff893f0b1aa02803dd825ddfb236c18cc43ee00794c0890f09
11. 0xbfd54386b4fab2f89fd66b0a369cf77d4dee7709822e3b89ed198c4444900056
12. 0xd3e3d5122a1bc515e0da13fffa946f5bbdca32998b689bba762a1a197b2cde55
13. 0x7fa5866908096f0b22f929078a2cec5d1e2891fa5835c6c55f26448d682790ec
14. 0xdf8e9d4c523b87b2bea3cc4d461fe94e163080e98a261c596a4641e3fcaf7cc4
15. 0x4698ebc7cbcb2286f661b867355eb6a9183e884482ee16965889e886b17d19ac
16. 0x35e8995c30094446ec790423171382fccb377081b921295b0ae3840cc2c4f52c
17. 0xf078ea7d84d98dbeffed23d8e67b36751e60464ffd4cfdc005e0aa6f8cb9b459
18. 0xe027395fafb7fc41921c42ca0542524ea22204cbd5908b70b27f3d5fb26f5d0f

Day root

0x2c19037464cc4c493624565f01775d6446fc78eaa118fc6865bfe2bfca9ff78e

Chained

0xd1d7dee8322ceff8f4c8d83aa1fe4a4466825c2af1c97dbde3d35db61234f7be

Published

On Arc Testnet, block 69584042: 0x8bae2b1d097834c8b458513862d70d29ee807e98dc2e863b27250131c15b35ae