← The evidence ledger
Evidence row 2201279
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://geo-calc.x402tookit.com/utm-mgrs
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 455ec752cb83195102521ea9c90cd7e136ab74d69d2dd1f7108ee3b259f77cf5
- Leaf
- 0x1e6d32dd4838c92f4c67b2e1452bcfa42b54838f5d6ce0c2cbaeffd050b9bb86
What was observed
{
"endpoints": [
[
"x402",
"https://geo-calc.x402tookit.com/utm-mgrs"
]
],
"name": "Geo Calc",
"owner_address": "0xb531320805c5bed1d46aeadcf4f008fdf172dbda",
"raw": {
"accepts": [
{
"amount": "20000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact"
},
{
"amount": "20000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
"transactionVersions": [
0
]
},
"maxTimeoutSeconds": 300,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "DUPiupXtuox38dcGoXUKer5mAydCzmaHjrbQ66qeEm8s",
"scheme": "exact"
},
{
"amount": "20000",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:137",
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact"
},
{
"amount": "20000",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:42161",
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact"
}
],
"description": "Convert WGS84 latitude/longitude to UTM (zone, band, easting, northing) and MGRS, with Norway/Svalbard zone rules.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"digits": 5,
"lat": 40.748433,
"lon": -73.985656
},
"type": "http"
},
"output": {
"example": {
"asOf": "2026-10-11T08:41:08.323Z",
"centralMeridianDeg": -75,
"degraded": false,
"disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
"gridConvergenceDeg": 0.662142,
"inRange": true,
"mgrs": "18TWL8563211326",
"mgrsCellSizeM": 1,
"mgrsDigitsPerAxis": 5,
"mgrsGrid": "18T WL",
"notChecked": [
"polar areas: north of 84 N and south of 80 S use UPS, which is not implemented",
"datums other than WGS84 (NAD83 differs by about 1 m in North America)",
"…1 more"
],
"reasons": [
"Standard 6 degree zone.",
"Grid convergence 0.66214 degrees, point scale factor 0.9996903."
],
"scaleFactor": 0.99969026,
"source": "Kruger series to 6th order (Karney 2011), WGS84, with NGA MGRS lettering; computed locally",
"summary": "(40.748433, -73.985656) is UTM 18T 585632.08 E 4511326.15 N, MGRS 18TWL8563211326.",
"utm": {
"band": "T",
"easting": 585632.081,
"hemisphere": "N",
"northing": 4511326.154,
"text": "18T 585632 4511326",
"zone": 18
},
"verdict": "CONVERTED",
"zoneException": null
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"digits": {
"description": "MGRS digits per axis, 1 to 5 (default 5 = 1 m)",
"type": "integer"
},
"lat": {
"description": "Latitude in degrees, -80 to 84 for UTM",
"type": "number"
},
"lon": {
"description": "Longitude in degrees, -180 to 180",
"type": "number"
}
},
"required": [
"lat",
"lon"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"asOf": {
"type": [
"null",
"string"
]
},
"centralMeridianDeg": {
"type": [
"null",
"number"
]
},
"degraded": {
"type": [
"boolean",
"null"
]
},
"disclaimer": {
"type": [
"null",
"string"
]
},
"gridConvergenceDeg": {
"type": [
"null",
"number"
]
},
"inRange": {
"type": [
"boolean",
"null"
]
},
"mgrs": {
"type": [
"null",
"string"
]
},
"mgrsCellSizeM": {
"type": [
"null",
"number"
]
},
"mgrsDigitsPerAxis": {
"type": [
"null",
"number"
]
},
"mgrsGrid": {
"type": [
"null",
"string"
]
},
"notChecked": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"reasons": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"scaleFactor": {
"type": [
"null",
"number"
]
},
"source": {
"type": [
"null",
"string"
]
},
"summary": {
"type": [
"null",
"string"
]
},
"utm": {
"properties": {
"band": {
"type": [
"null",
"string"
]
},
"easting": {
"type": [
"null",
"number"
]
},
"hemisphere": {
"type": [
"null",
"string"
]
},
"northing": {
"type": [
"null",
"number"
]
},
"text": {
"type": [
"null",
"string"
]
},
"zone": {
"type": [
"null",
"number"
]
}
},
"type": [
"null",
"object"
]
},
"verdict": {
"type": [
"null",
"string"
]
},
"zoneException": {}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-11-02T04:06:38.126Z",
"quality": {
"l30DaysTotalCalls": 3,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-11-02T04:06:37.909Z"
},
"resource": "https://geo-calc.x402tookit.com/utm-mgrs",
"serviceName": "Geo Calc",
"tags": [
"utm",
"mgrs",
"coordinates",
"geodesy"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Convert WGS84 latitude/longitude to UTM (zone, band, easting, northing) and MGRS, with Norway/Svalbard zone rules."
}What the leaf hashes
{"body":"455ec752cb83195102521ea9c90cd7e136ab74d69d2dd1f7108ee3b259f77cf5","id":2201279,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646803154832,"prev":null,"subject":"x402_bazaar:https://geo-calc.x402tookit.com/utm-mgrs","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (444186 rows).
- 0x1e6d517b1613a31f676f726b8b9de4988efb49792081c573d0b977e25654e50b
- 0x04f921a8e960c9ecb71497748f9a93368726b0a2d83509545461226d8e95649c
- 0x15b193331bb2c104d255bc0f37c41eac4e2f86aa0c602167d536d99720687fc4
- 0xb77f64ccddb385b363ae6cb6362bc84e37c3e699bdb225b97068189613b0a883
- 0x55840014f637943fc717a4aad8c04a9ccfa6c4392c88b94a02e13b2b25a17c17
- 0x05ff69a17274df80d38874b42bf10a21f3d065c9584f682b0090e5c3fa9251ca
- 0xc773d1df8fa32456a3bd10f4a6e348c349b1d449cbeba52ee46404502801c311
- 0x9d4f62e7afa78f6c344482d0383a0df49e386a2cc51c989a981b328dec7ca1bf
- 0x89625f90fda141ce1ffe8fd2263a0604be6b4bfd571b64c02d19dc9c90d542b5
- 0x3e6cf8cc108073f4a0be5649f010b670217b9da6cfd7113f5c13e04dc3c51c1e
- 0x2d180b6ba9c2bf86f17edb453f02057ab623c8756029135a841c96d8b24819a5
- 0x189fb19645767b3fb6a2034ac4caa97d2f85b8b18f05cfaa0c2b16c045c37f2d
- 0xd6cbf3765149b25eba4e10fe21fd5993687ecdd3cb9c495f97c3c148afee08ed
- 0xc63937235d47ff2107de3051477e395be67b96d91d1349c787bf4b1ef91b602f
- 0xcd21ec8d72a18a2d4513e4fd309abbb530810fb1dbeecd4b9b85acb4d6ff8f12
- 0xac40f077ca4be8c3432a67771725cc315e8101fc2649999cfad2c900a7640e27
- 0x53a741b69e9e51c4a288a74712aa6ac3fb28c8923cd3e6461d161c4f2d48b31a
- 0x050f2978b537f7afb21ee1551577cdf146d1c56f4df12d24315ae5e69366b0a4
- 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e
- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af