Evidence row 125678

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402.agentutility.ai/exchange-rates"
    ]
  ],
  "name": "AgentUtility.ai",
  "owner_address": "0x6c0752c09e7f6fa6526fcdf40e456a159ebb5621",
  "raw": {
    "accepts": [
      {
        "amount": "2000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x6c0752c09e7F6fA6526fCDf40e456a159ebB5621",
        "scheme": "exact"
      },
      {
        "amount": "2000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "FJqAJ4dXkFbrp3EEo8E9x98iaBGUQwaU8Srz5ePfUXLH",
        "scheme": "exact"
      }
    ],
    "description": "Exchange rates. Latest or historical FX rates between currencies, sourced from the European Central Bank (Frankfurter API). 30+ currency pairs. Optional amount conversion. No commercial restrictions. Specify a base currency (default USD), an optional quote currency or list, an optional date (YYYY-MM-DD or 'latest'), and an optional amount to also receive a converted value when a single quote is supplied.",
    "extensions": {
      "bazaar": {
        "discoverable": true,
        "info": {
          "input": {
            "body": {
              "amount": 100,
              "base": "USD",
              "quote": [
                "EUR",
                "GBP",
                "JPY"
              ]
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "base": "USD",
              "date": "2026-05-06",
              "rates": {
                "EUR": 0.92,
                "GBP": 0.79,
                "JPY": 154.21
              },
              "source": "https://api.frankfurter.dev"
            },
            "type": "json"
          }
        },
        "related": [
          "/market-rates-pack",
          "/travel-brief",
          "/cross-border-ops-brief",
          "/destination-arrival-pack"
        ],
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "amount": {
                      "description": "Optional amount in the base currency. When a single quote is supplied, the response includes the converted amount.",
                      "type": "number"
                    },
                    "base": {
                      "description": "ISO 4217 base currency code (e.g. 'USD', 'EUR'). Default 'USD'.",
                      "type": "string"
                    },
                    "date": {
                      "description": "'latest' (default) or a historical date in YYYY-MM-DD format.",
                      "type": "string"
                    },
                    "quote": {
                      "description": "Single ISO 4217 quote currency, or array of codes. Omit for all available rates."
                    }
                  },
                  "required": []
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "base": {
                      "type": "string"
                    },
                    "date": {
                      "type": "string"
                    },
                    "rates": {
                      "properties": {
                        "EUR": {
                          "type": "number"
                        },
                        "GBP": {
                          "type": "number"
                        },
                        "JPY": {
                          "type": "number"
                        }
                      },
                      "type": "object"
                    },
                    "source": {
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      },
      "builder-code": {
        "info": {
          "a": "bc_awpbwsy3"
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "additionalProperties": false,
          "properties": {
            "a": {
              "description": "App builder code",
              "pattern": "^[a-z0-9_]{1,32}$",
              "type": "string"
            },
            "s": {
              "description": "Service builder codes",
              "items": {
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              },
              "type": "array"
            },
            "w": {
              "description": "Wallet builder code",
              "pattern": "^[a-z0-9_]{1,32}$",
              "type": "string"
            }
          },
          "type": "object"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1783070352/bazaar-icons/54f004eda341546b.png",
    "lastUpdated": "2026-10-25T10:57:50.071Z",
    "quality": {
      "l30DaysTotalCalls": 9,
      "l30DaysUniquePayers": 7,
      "lastCalledAt": "2026-10-25T10:57:47.23Z"
    },
    "resource": "https://x402.agentutility.ai/exchange-rates",
    "serviceName": "AgentUtility.ai",
    "tags": [
      "edge-finance",
      "exchange",
      "rates"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Exchange rates. Latest or historical FX rates between currencies, sourced from the European Central Bank (Frankfurter API). 30+ currency pairs. Optional amount conversion. No commercial restrictions. Specify a base currency (default USD), an optional quote currency or list, an optional date (YYYY-MM-DD or 'latest'), and an optional amount to also receive a converted value when a single quote is supplied."
}

What the leaf hashes

{"body":"33c6360eee87f65b94d5a2c69d7e5c32991e4cc552c5f28b20658aed4c90ba1b","id":125678,"kind":"listing","method":"baseline/1","observed_us":1793025626591141,"prev":null,"subject":"x402_bazaar:https://x402.agentutility.ai/exchange-rates","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0x4bb6bfc44fb69578f2c573247233f965e29da5e3d492dc65343ff49b3f9bc4f0
2. 0x64f242763b2cd81414e8e865609f0a1a0d885bbae155417748261082c4ce6f91
3. 0xf181e5f8e0ca6ce99ae7935e093d689682418fbee81ca4754bc95c62e255c77d
4. 0x481e87f80f7d39252ec7ab348fe5bc61e39466102db454ad9c51c54f2eb03913
5. 0x113b0d498fb3de75cbd5bca85cdf7d1c9f70b08ff7b5a4220b87f19e0e65557a
6. 0x2dac427056c2041f747d960c1cbe45ea1de8d38e511c70f473fb74233cb587f2
7. 0xd3454f691b8ba0b9b53d275a589acf2413ed0e6e4c8f1da52e5c782577692374
8. 0x69c699acbd359aeb7e6db54a348f489964f2748d39ca3d05587e0ce8f7d08cb1
9. 0x2eff88dd310b0d6e4c81b9dd08dc1d8ecc83459ce7b44d736b37e179137413f8
10. 0x25535a5918795cc2fd8a0d10ce751f574b6ad2a93510526d842cb104854c5af1
11. 0x8e1dce5acc3a34df8e5fee91635037c0b87740a313eb455495b8fa04b41070e7
12. 0x67ae8949b58cb7b0dd4cfa0f9aeeee715e0ae6b87fef0ba46483bbf280004c53
13. 0x1ffd24a0422348bb2305058cc138e276511e1c074bf8139af5b773941f0e5de2
14. 0x88e326a39b26e2c125306c9d3805d14398ace088bba9a2a0aa376b811cfb201a
15. 0x2be1e80e065dd6b2cc75a7142be22225acd144ac975d70bf24b4f01fd76dc497
16. 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae