Evidence row 2631873

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.losbeto.xyz/forex-rate"
    ]
  ],
  "name": "Losbeto Market Intelligence",
  "owner_address": "0xd5ba9711a3d052846a3695c70e7fcb8b3168fe7d",
  "raw": {
    "accepts": [
      {
        "amount": "12000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "requestId": "ad11c676b8c6",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xd5Ba9711a3D052846a3695C70e7fcb8b3168FE7d",
        "scheme": "exact"
      },
      {
        "amount": "12000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww",
          "requestId": "ad11c676b8c6"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "GEhr9HCFTRDjanMg435frSgCVwVZYpNoPrEkmNBnFHFE",
        "scheme": "exact"
      },
      {
        "amount": "12000",
        "asset": "31566704",
        "extra": {
          "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA",
          "requestId": "ad11c676b8c6",
          "tag": "x402-global-challenge"
        },
        "maxTimeoutSeconds": 300,
        "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k",
        "payTo": "MRVA6OABPQJNJ2WFUHFY57FMJXHBV37IU665MXRJX4JYBIWGACP3LSDUF4",
        "scheme": "exact"
      },
      {
        "amount": "12000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "requestId": "ad11c676b8c6",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:137",
        "payTo": "0xd5Ba9711a3D052846a3695C70e7fcb8b3168FE7d",
        "scheme": "exact"
      }
    ],
    "description": "Live FX rate for major pairs (?pair=EUR/USD): EUR, GBP, JPY, CHF, AUD, CAD crosses with the provider named in the response. [Wrapper over a free public source (https://exchangerate-api.com (free tier)) — you pay for o...",
    "extensions": {
      "bazaar": {
        "dataFreshness": {
          "cache_ttl_s": 60,
          "live_data": "≤3s from source",
          "preview_data": "≤15min delayed"
        },
        "description": "Live FX rate for major pairs (?pair=EUR/USD): EUR, GBP, JPY, CHF, AUD, CAD crosses with the provider named in the response. [Wrapper over a free public source (https://exchangerate-api.com (free tier)) — you pay for o...",
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "pair": "EUR/USD"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "base": "EUR",
              "pair": "EUR/USD",
              "provider": "Losbeto/Forex",
              "quote": "USD",
              "rate": 1.116071,
              "source": "exchangerate-api",
              "timestamp": "2026-11-01",
              "ts": 1793511126,
              "version": "48.43.0-SIGNALFIX"
            },
            "type": "json"
          }
        },
        "inputSchema": {
          "properties": {
            "pair": {
              "description": "Currency pair, e.g. EUR/USD, GBP/USD, USD/JPY",
              "type": "string"
            }
          },
          "required": [
            "pair"
          ],
          "type": "object"
        },
        "naturalLanguageDescription": "Live FX rate for major pairs (?pair=EUR/USD): EUR, GBP, JPY, CHF, AUD, CAD crosses with the provider named in the response. [Wrapper over a free public source (https://exchangerate-api.com (free tier)) — you pay for one schema, one payment rail, signed receipts and monitored uptime.]. Tier: discovery. Live via x402 or credits; free delayed preview via ?preview=1. Auditable on-chain settlement; Ed25519-signed metrics.",
        "outputSchema": {
          "properties": {
            "base": {
              "type": "string"
            },
            "pair": {
              "type": "string"
            },
            "provider": {
              "type": "string"
            },
            "quote": {
              "type": "string"
            },
            "rate": {
              "type": "number"
            },
            "source": {
              "type": "string"
            },
            "timestamp": {
              "type": "string"
            },
            "ts": {
              "type": "integer"
            },
            "version": {
              "type": "string"
            }
          },
          "type": "object"
        },
        "pricingRationale": {
          "notes": "Aligned to x402 ecosystem median (~$0.028/call). Premium tiers reflect multi-source aggregation cost.",
          "price_usdc": 0.012,
          "tier": "discovery",
          "vs_median_x402": 0.43
        },
        "provider": {
          "name": "Losbeto Market Intelligence",
          "url": "https://api.losbeto.xyz"
        },
        "ranking_hints": {
          "category": "discovery",
          "primary_tag": "Forex",
          "unique_selling_point": "Live FX rate for major pairs (?pair=EUR/USD): EUR, GBP, JPY, CHF, AUD, CAD crosses with th"
        },
        "sampleQueries": [
          "GET /forex-rate?preview=1  # free delayed sample",
          "GET /forex-rate  # live data (returns 402 with payment challenge)",
          "GET /forex-rate?pair=EUR/USD  # with parameters"
        ],
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "properties": {
                "queryParams": {
                  "properties": {
                    "pair": {
                      "description": "Currency pair, e.g. EUR/USD, GBP/USD, USD/JPY",
                      "type": "string"
                    }
                  },
                  "required": [
                    "pair"
                  ],
                  "type": "object"
                }
              },
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "base": {
                      "type": "string"
                    },
                    "pair": {
                      "type": "string"
                    },
                    "provider": {
                      "type": "string"
                    },
                    "quote": {
                      "type": "string"
                    },
                    "rate": {
                      "type": "number"
                    },
                    "source": {
                      "type": "string"
                    },
                    "timestamp": {
                      "type": "string"
                    },
                    "ts": {
                      "type": "integer"
                    },
                    "version": {
                      "type": "string"
                    }
                  },
                  "type": "object"
                }
              },
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        },
        "tags": [
          "forex",
          "globalmarkets",
          "fx-rates"
        ],
        "title": "Forex Rate — Losbeto",
        "useCases": [
          "FX arbitrage",
          "hedge sizing",
          "cross-currency valuation"
        ]
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1790529703/bazaar-icons/b104f2f7df1a4ce6.png",
    "lastUpdated": "2026-11-01T05:43:31.974Z",
    "quality": {
      "l30DaysTotalCalls": 63,
      "l30DaysUniquePayers": 5,
      "lastCalledAt": "2026-11-03T13:08:35.266Z"
    },
    "resource": "https://api.losbeto.xyz/forex-rate",
    "serviceName": "Losbeto Market Intelligence",
    "tags": [
      "forex",
      "globalmarkets",
      "fx-rates"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Live FX rate for major pairs (?pair=EUR/USD): EUR, GBP, JPY, CHF, AUD, CAD crosses with the provider named in the response. [Wrapper over a free public source (https://exchangerate-api.com (free tier)) — you pay for o..."
}

What the leaf hashes

{"body":"451bd61683427dcc12811310eb260bd77d9749232aeaa88d4a1b02641915c44e","id":2631873,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793734357210014,"prev":2198991,"subject":"x402_bazaar:https://api.losbeto.xyz/forex-rate","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. 0x8db821f8c74685d4118ba6f1914c94124d25106cc36caa6787bc2d1ce4f96738
2. 0xfbfc58257e7b9679b188c616f7eb46e82b0915307b49d01c06df5786d09b031e
3. 0x629a951c261e95e9ecd8e8ac51bc391952662e1fd86158a036a3bbcc61562204
4. 0x16dddf6856826e6398c7ba4c7b97d3c542bd8c3a51d156c734339e4190bfb3dd
5. 0x2b52f1bb0c1fb3685fad46f76a59fbfcbb0574da896bb66d24da5986035156f3
6. 0xc0a4d24a63782bc9ad28a0b528ce6c6f1c961a675b517d65508dfd58201e0e97
7. 0x6cc8db4c99765a0b9cf39b4bf2282a32a0eb4ea9975e7d449e7cf846c7a60103
8. 0x9617fb30a4d8ed299c0be836b541332d211c5af45dfcd5cea1bcbf2d7d6075b6
9. 0xe323834f5f57f40dfef09b5ba5ec19ff2058602d528ab86224b0430dbbd1c9cc
10. 0x70df437f6da897ed3f81e36ec8a89d8b0b4483970904f8b3e5f323f488902514
11. 0x7da38d9c04743a698c5d1654cc47d0eace49342768326a28d0d01030ccdfe0b1
12. 0xc50944a6c69e44712ddfce9ff490d4e352b87a8d00e2a1b3535476fc163fcec9
13. 0x011a0e3ddc4ed33bcbefeaa3948dc632c682c298b43d1309b73fbfab20b67e71
14. 0xaff11aa970c81dfc542d7f358866d8f7815e0e193eb66f9d52b94183bf812c8d
15. 0xb5ab3a67e92dbd6d8eb3ea95dd8fba5b750735344b87d689cb50ea92ccaeea56
16. 0x77587d79b39ec04901214373cabf0c9651bc2cf065dc080615a260064314c4a5
17. 0x271a5f715272513f57457682f93389885577f2664b5ae5dcea924ad10a098eb5
18. 0x717b5d7cbc24826c5b1f7b7433bf30b76e9ba1370476af4e1b494a5211897cc3
19. 0xe35032d4b064b015fe60638756eeb0bc24e7c7943586468d33349341ee0ed3d6

Day root

0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a

Chained

0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43

Published

On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7