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Evidence row 71110

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://apiacre.com/v1/data/worldbank-snapshot
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
52680f398c2354b2096f8e26bdac951d93ffe717d14b6943b44844d2cb2375c7
Leaf
0xe077ee8ae8fede3367be8f348982047ab55e00c42bcffb879221fcec89603652

What was observed

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    [
      "x402",
      "https://apiacre.com/v1/data/worldbank-snapshot"
    ]
  ],
  "name": "API Acre",
  "owner_address": "0xa0bfa4f07281c9b248dc3aed2217836bca24869b",
  "raw": {
    "accepts": [
      {
        "amount": "5000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xa0BFa4f07281c9b248DC3AED2217836BcA24869B",
        "scheme": "exact"
      },
      {
        "amount": "5000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "B4CHWQeQn7GDLZD2aW6hpGG2bEseisBFLZYECA3HDLan",
        "scheme": "exact"
      }
    ],
    "description": "Bundle six official World Development Indicators into one normalized country snapshot with latest and previous GDP, growth, population, inflation, unemployment, and life-expectancy observations plus source and license evidence.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "country_code": "GBR",
              "lookback_years": 3
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "data": {
                "availableMetricCount": 6,
                "country": {
                  "iso2Code": "GB",
                  "iso3Code": "GBR",
                  "name": "United Kingdom",
                  "region": "Europe & Central Asia"
                },
                "license": {
                  "attribution": "World Bank, World Development Indicators.",
                  "id": "CC-BY-4.0",
                  "termsUrl": "https://data.worldbank.org/summary-terms-of-use",
                  "url": "https://creativecommons.org/licenses/by/4.0/"
                },
                "limitations": [
                  "Latest years vary by indicator and country; inspect each ...",
                  "Missing or revised observations are reported without inte...",
                  "Official statistics only; not investment, legal, credit, ..."
                ],
                "metrics": {
                  "gdpCurrentUsd": {
                    "indicatorCode": "NY.GDP.MKTP.CD",
                    "key": "gdpCurrentUsd",
                    "name": "GDP (current US$)",
                    "unit": "current USD"
                  },
                  "gdpGrowthAnnualPct": {
                    "indicatorCode": "NY.GDP.MKTP.KD.ZG",
                    "key": "gdpGrowthAnnualPct",
                    "name": "GDP growth (annual %)",
                    "unit": "percent"
                  },
                  "inflationAnnualPct": {
                    "indicatorCode": "FP.CPI.TOTL.ZG",
                    "key": "inflationAnnualPct",
                    "name": "Inflation, consumer prices (annual %)",
                    "unit": "percent"
                  },
                  "population": {
                    "indicatorCode": "SP.POP.TOTL",
                    "key": "population",
                    "name": "Population, total",
                    "unit": "people"
                  }
                },
                "missingMetrics": [],
                "retrievedAt": "2026-08-12T00:33:37+00:00",
                "source": {
                  "apiBaseUrl": "https://api.worldbank.org/v2",
                  "countryUrl": "https://api.worldbank.org/v2/country/GBR?format=json",
                  "dataset": "World Development Indicators",
                  "provider": "World Bank"
                },
                "warnings": [],
                "window": {
                  "endYear": 2026,
                  "lookbackYears": 3,
                  "startYear": 2024
                }
              },
              "meta": {
                "cached": false,
                "duration_ms": 42,
                "next_actions": [],
                "sources": [],
                "warnings": []
              },
              "request_id": "018f1f54-7f38-7ba2-8dc3-5f90272d9f1a",
              "service": "data.worldbank-snapshot",
              "version": "1"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "country_code": {
                      "type": "string"
                    },
                    "lookback_years": {
                      "type": "integer"
                    }
                  },
                  "required": [
                    "country_code"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "type": {
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                  "type": "string"
                }
              },
              "required": [
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              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "data": {
                      "additionalProperties": false,
                      "properties": {
                        "availableMetricCount": {
                          "type": "integer"
                        },
                        "country": {
                          "type": "object"
                        },
                        "license": {
                          "type": "object"
                        },
                        "limitations": {
                          "items": {
                            "type": "string"
                          },
                          "type": "array"
                        },
                        "metrics": {
                          "type": "object"
                        },
                        "missingMetrics": {
                          "items": {
                            "type": "string"
                          },
                          "type": "array"
                        },
                        "retrievedAt": {
                          "type": "string"
                        },
                        "source": {
                          "type": "object"
                        },
                        "warnings": {
                          "items": {
                            "type": "string"
                          },
                          "type": "array"
                        },
                        "window": {
                          "type": "object"
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                      },
                      "required": [
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                        "availableMetricCount",
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                        "missingMetrics",
                        "warnings",
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                        "retrievedAt",
                        "limitations"
                      ],
                      "type": "object"
                    },
                    "meta": {
                      "properties": {
                        "cached": {
                          "type": "boolean"
                        },
                        "duration_ms": {
                          "type": "integer"
                        },
                        "next_actions": {
                          "items": {
                            "type": "object"
                          },
                          "type": "array"
                        },
                        "sources": {
                          "items": {
                            "type": "string"
                          },
                          "type": "array"
                        },
                        "warnings": {
                          "items": {
                            "type": "string"
                          },
                          "type": "array"
                        }
                      },
                      "required": [
                        "duration_ms",
                        "cached",
                        "sources",
                        "warnings",
                        "next_actions"
                      ],
                      "type": "object"
                    },
                    "request_id": {
                      "type": "string"
                    },
                    "service": {
                      "type": "string"
                    },
                    "version": {
                      "type": "string"
                    }
                  },
                  "required": [
                    "request_id",
                    "service",
                    "version",
                    "data",
                    "meta"
                  ],
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
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              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      },
      "payment-identifier": {
        "info": {
          "required": false
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "id": {
              "maxLength": 128,
              "minLength": 16,
              "pattern": "^[a-zA-Z0-9_-]+$",
              "type": "string"
            },
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              "type": "boolean"
            }
          },
          "required": [
            "required"
          ],
          "type": "object"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1786471603/bazaar-icons/3cd5dfbdc8c7913d.png",
    "lastUpdated": "2026-10-24T00:00:40.097Z",
    "quality": {
      "l30DaysTotalCalls": 26,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-24T00:01:25.986Z"
    },
    "resource": "https://apiacre.com/v1/data/worldbank-snapshot",
    "serviceName": "API Acre",
    "tags": [
      "data",
      "world-bank",
      "wdi",
      "country",
      "economy"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Bundle six official World Development Indicators into one normalized country snapshot with latest and previous GDP, growth, population, inflation, unemployment, and life-expectancy observations plus source and license evidence."
}

What the leaf hashes

{"body":"52680f398c2354b2096f8e26bdac951d93ffe717d14b6943b44844d2cb2375c7","id":71110,"kind":"listing","method":"baseline/1","observed_us":1793025481627174,"prev":null,"subject":"x402_bazaar:https://apiacre.com/v1/data/worldbank-snapshot","subject_kind":"source_record"}

Proof

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

  1. 0xe077b5643618cd19e0dcc0cbd4e772b0f712dd07eba811217a056c4341c5f903
  2. 0x18c7c58847f00ed6978bd5c23fa3a2c312956d4c6beb170eb082374ebce1ac85
  3. 0xfae77e176668b6f504ed8b4220e1e6c30c4992a9b71dedaa72e0a05593539446
  4. 0x206cb9dbebdac641acf01ae51d403548b325b2ca9ff6c0a9257f485ebddca3ed
  5. 0xffe28f4cc30ebabc116ccc901cb19533f1fd0d099a8dc6343608449f6f29882b
  6. 0x0451e3585b846ffc37610145fadf6c6c201ca7444be7e947065a90a9c009e181
  7. 0xd82f5da7b0086aca32b4cf5310f746f0f8beb0aa302d1c6bd709e7596931fd64
  8. 0xa5169f80a26da529a760bcde742101a46400a7c5e912ca600f5ea7c45c05079c
  9. 0xbae3f4a8042ca9e93d8e3f28f7edcee7a39f5449dd1a0dea2149de3dfc75dbeb
  10. 0x6ff4120b0309d1afe829772edab6c960527c15f95727cac1d6a063da5f24cd85
  11. 0x07a6fcdebada154e3a5a086ae2c78ad003011940759e5f38c005cc9b2ec3ef9d
  12. 0x1cde596bd397df62b2525df79e5a761af7d1a292cbcfd283ea8977aecf9334e7
  13. 0x3fcdf7fa32ccefe771eb57ae3015142065d64e3ce732fea7d11b9a3c99dde44f
  14. 0x0b7541c75cc482a7134110311d7dbd02095d969ba21177de9b21a52a55981718
  15. 0x6dc40f983a3840a0ad927a9ca17f4ff1e3b649a6c735e2a09b140db7c2caf13b
  16. 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
  17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
  18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
  19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON