← The evidence ledger
Evidence row 117734
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://opendata402.com/v1/worldbank/indicator
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- c1436fe9b5d7432ea06ef231b26588cdb8231dd9abae7113dfd6252d73c9b8c8
- Leaf
- 0x71e1d10c3d2de82be2f416b8c0d42654788f58e4fe407a4c9d38a5ef51e3dd59
What was observed
{
"endpoints": [
[
"x402",
"https://opendata402.com/v1/worldbank/indicator"
]
],
"name": "opendata402",
"owner_address": "0x295aa6c5a3460a0f8755823c8ee7bbc7caf79fb1",
"raw": {
"accepts": [
{
"amount": "1000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 30,
"network": "eip155:8453",
"payTo": "0x295AA6c5a3460A0f8755823C8eE7bBC7CAf79fb1",
"scheme": "exact"
},
{
"amount": "1000",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 30,
"network": "eip155:137",
"payTo": "0x295AA6c5a3460A0f8755823C8eE7bBC7CAf79fb1",
"scheme": "exact"
},
{
"amount": "1000",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 30,
"network": "eip155:42161",
"payTo": "0x295AA6c5a3460A0f8755823C8eE7bBC7CAf79fb1",
"scheme": "exact"
}
],
"description": "World Bank development indicators for any country: GDP, population, inflation, unemployment, CO2 and 1,000+ more by indicator code (e.g. NY.GDP.MKTP.CD, SP.POP.TOTL, FP.CPI.TOTL.ZG). Returns the most recent yearly values. Use it for country comparisons, market sizing and economic background. World Bank data, CC BY 4.0.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"country": "NL",
"indicator": "NY.GDP.MKTP.CD",
"years": "5"
},
"type": "http"
},
"output": {
"example": {
"country": "Netherlands",
"indicator": "GDP (current US$)",
"values": [
{
"value": 1200000000000,
"year": "2025"
}
]
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"country": {
"description": "ISO2 or ISO3 country code.",
"pattern": "^[A-Za-z]{2,3}$",
"type": "string"
},
"indicator": {
"description": "World Bank indicator code.",
"pattern": "^[A-Za-z0-9._]{3,40}$",
"type": "string"
},
"years": {
"description": "Number of recent years, 1-30 (default 5).",
"pattern": "^([1-9]|[1-2][0-9]|30)$",
"type": "string"
}
},
"required": [
"country",
"indicator"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-25T22:04:50.728Z",
"quality": {
"l30DaysTotalCalls": 6,
"l30DaysUniquePayers": 5,
"lastCalledAt": "2026-10-25T22:04:50.489Z"
},
"resource": "https://opendata402.com/v1/worldbank/indicator",
"serviceName": "opendata402",
"tags": [
"world-bank",
"economics",
"gdp",
"population",
"countries"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "World Bank development indicators for any country: GDP, population, inflation, unemployment, CO2 and 1,000+ more by indicator code (e.g. NY.GDP.MKTP.CD, SP.POP.TOTL, FP.CPI.TOTL.ZG). Returns the most recent yearly values. Use it for country comparisons, market sizing and economic background. World Bank data, CC BY 4.0."
}What the leaf hashes
{"body":"c1436fe9b5d7432ea06ef231b26588cdb8231dd9abae7113dfd6252d73c9b8c8","id":117734,"kind":"listing","method":"baseline/1","observed_us":1793025611833242,"prev":null,"subject":"x402_bazaar:https://opendata402.com/v1/worldbank/indicator","subject_kind":"source_record"}Proof
Its day has not closed yet. A day closes ten minutes after midnight UTC; the proof appears here then.