← The evidence ledger
Evidence row 75817
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://geospatial.openverbs.com/v1/resolution
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 8efcd3e94d2ead55fef3c23f6ddcbb2b615cbe93fb5403edba3bcb5d1735feff
- Leaf
- 0xfaa90c514fd2fd3ac2945ff749a91509bece5cb66c91d69e7b86289b5dbd18be
What was observed
{
"endpoints": [
[
"x402",
"https://geospatial.openverbs.com/v1/resolution"
]
],
"name": "Ground resolution & scale",
"owner_address": "0xb3f4de103f34b99f0da19b4f16d6b53a14c2194a",
"raw": {
"accepts": [
{
"amount": "2000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A",
"scheme": "exact"
}
],
"description": "Report the ground resolution (metres per pixel, for 256-px tiles) and the OGC map scale denominator at a zoom level, optionally adjusted for latitude (default equator).",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"lat": 1,
"zoom": 1
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"lat": {
"description": "Latitude for the cos(lat) correction. Default 0.",
"maximum": 90,
"minimum": -90,
"type": "number"
},
"zoom": {
"description": "Zoom level.",
"maximum": 30,
"minimum": 0,
"type": "integer"
}
},
"required": [
"zoom"
],
"type": "object"
},
"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"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-25T23:40:40.123Z",
"quality": {
"l30DaysTotalCalls": 18,
"l30DaysUniquePayers": 6,
"lastCalledAt": "2026-10-25T23:40:39.994Z"
},
"resource": "https://geospatial.openverbs.com/v1/resolution",
"serviceName": "Ground resolution & scale",
"tags": [
"map ground resolution",
"meters per pixel",
"tile zoom scale",
"web mercator scale",
"resolution by zoom level"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Report the ground resolution (metres per pixel, for 256-px tiles) and the OGC map scale denominator at a zoom level, optionally adjusted for latitude (default equator)."
}What the leaf hashes
{"body":"8efcd3e94d2ead55fef3c23f6ddcbb2b615cbe93fb5403edba3bcb5d1735feff","id":75817,"kind":"listing","method":"baseline/1","observed_us":1793025491129583,"prev":null,"subject":"x402_bazaar:https://geospatial.openverbs.com/v1/resolution","subject_kind":"source_record"}Proof
Its day has not closed yet. A day closes ten minutes after midnight UTC; the proof appears here then.