← The evidence ledger
Evidence row 120854
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://saylorinnovations.com/api/weather/sweden
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 1fbee2f187597a7e3d1f99276d7f0541aa29e84aafbfa4dc4159ff4c821799f6
- Leaf
- 0xbd2aa3abaaeefad10f09ee98a9875246288436da50c79265a2fa069a79f4605e
What was observed
{
"endpoints": [
[
"x402",
"https://saylorinnovations.com/api/weather/sweden"
]
],
"name": "Saylor Innovations Data Desk",
"owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
"raw": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"assetTransferMethod": "eip3009",
"facilitatorOnly": true,
"memo": "saylor:datadesk:smhi-forecast",
"name": "USD Coin",
"note": "Base settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
"version": "2"
},
"maxTimeoutSeconds": 120,
"network": "eip155:8453",
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"assetTransferMethod": "eip3009",
"facilitatorOnly": true,
"memo": "saylor:datadesk:smhi-forecast",
"name": "USD Coin",
"note": "Polygon settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
"version": "2"
},
"maxTimeoutSeconds": 120,
"network": "eip155:137",
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"assetTransferMethod": "eip3009",
"facilitatorOnly": true,
"memo": "saylor:datadesk:smhi-forecast",
"name": "USD Coin",
"note": "Arbitrum settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
"version": "2"
},
"maxTimeoutSeconds": 120,
"network": "eip155:42161",
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
"memo": "saylor:datadesk:smhi-forecast",
"reference": "4d3jmfdJvigwSvn7EdbpME7dEHBjguEwqRixxzFFJzKt",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpzbWhpLWZvcmVjYXN0IiwicmVmZXJlbmNlIjoiNGQzam1mZEp2aWd3U3ZuN0VkYnBNRTdkRUhCamd1RXdxUml4eHpGRkp6S3QiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFUGpGV2RkNUF1ZnFTU3FlTTJxTjF4enliYXBDOEc0d0VHR2tad3lURHQxdiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjQwNDg5NTg2NX0.7XbbGbz7XHA9nv2QnYj_bZSUSxmdkWkf6L9b0nYzC9c"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
"memo": "saylor:datadesk:smhi-forecast",
"reference": "DGVRJA8XG4KJzGa4VqJyfXevv3ghZ3vdJ77N7KxZBBcD",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpzbWhpLWZvcmVjYXN0IiwicmVmZXJlbmNlIjoiREdWUkpBOFhHNEtKekdhNFZxSnlmWGV2djNnaFozdmRKNzdON0t4WkJCY0QiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFczl2TUZyemFDRVJtSmZyRjRIMkZZRDRLQ29Oa1kxMU1jQ2U4QmVud05ZQiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjQwNDg5NTg2NX0.DxlvhzWQ27L_8622ejU-nBXG-re5ttePK4h8l2U7EpI"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
},
{
"amount": "92003",
"asset": "So11111111111111111111111111111111111111112",
"extra": {
"memo": "saylor:datadesk:smhi-forecast",
"native": true,
"note": "Native SOL: send lamports with a system transfer, not an SPL transfer. Price is quoted live and this quote expires in 120s.",
"quotedLamports": "94849",
"reference": "Apx2vCULC3kEyZauUj7h55NWXnoRcnyW738RiopGqwPz",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpzbWhpLWZvcmVjYXN0IiwicmVmZXJlbmNlIjoiQXB4MnZDVUxDM2tFeVphdVVqN2g1NU5XWG5vUmNueVc3MzhSaW9wR3F3UHoiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOm51bGwsIm1pbkFtb3VudCI6OTIwMDMsImV4cCI6MTc5MjQwNDg5NTg2NX0.NzxvqaN2yUlIEbEocZQ-PZ9BaBmQzdWgNnMj4D7VDhU",
"solUsdPrice": 105.43
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
}
],
"description": "SMHI Sweden weather forecast for any lat/lon - current conditions, 24 hourly steps with gusts and rain chance, and a daily min/max/precipitation outlook",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"lat": "59.33",
"lon": "18.07"
},
"type": "http"
},
"output": {
"example": {
"created_at": "2026-10-16T07:16:24Z",
"current": {
"cloud_cover_octas": 8,
"gust_m_s": 8.4,
"precipitation_probability_pct": 0,
"pressure_hpa": 1015.6,
"relative_humidity_pct": 88,
"temperature_c": 13,
"time": "2026-10-16T08:00:00Z",
"visibility_km": 12.5,
"wesymb2_symbol": 4,
"wind_direction_deg": 221,
"wind_speed_m_s": 4.2
},
"daily": [
{
"date": "2026-10-16",
"max_c": 15.7,
"min_c": 11.9,
"precip_mm": 2.7
},
{
"date": "2026-10-17",
"max_c": 10.3,
"min_c": 3.8,
"precip_mm": 6.7
},
{
"date": "2026-10-18",
"max_c": 9.6,
"min_c": 3.2,
"precip_mm": 0
}
],
"latitude": 59.33,
"longitude": 18.07,
"next_24_hours": [
{
"gust_m_s": 8.4,
"precipitation_mm": 0,
"precipitation_probability_pct": 0,
"temperature_c": 13,
"time": "2026-10-16T08:00:00Z",
"wind_speed_m_s": 4.2
},
{
"gust_m_s": 8,
"precipitation_mm": 0,
"precipitation_probability_pct": 0,
"temperature_c": 13.7,
"time": "2026-10-16T09:00:00Z",
"wind_speed_m_s": 4.1
},
{
"gust_m_s": 7.9,
"precipitation_mm": 0,
"precipitation_probability_pct": 3,
"temperature_c": 14.3,
"time": "2026-10-16T10:00:00Z",
"wind_speed_m_s": 3.7
}
],
"note": "SMHI point forecast (Sweden and surrounding area). Symbol codes follow the SMHI Wsymb2 scheme. Daily days are UTC.",
"reference_time": "2026-10-16T07:00:00Z",
"source": "SMHI (Swedish Meteorological and Hydrological Institute)"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"lat": {
"description": "Latitude in decimal degrees (Sweden/Nordics/Baltic)",
"type": "string"
},
"lon": {
"description": "Longitude in decimal degrees",
"type": "string"
}
},
"required": [
"lat",
"lon"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"created_at": {
"description": "Created at (UTC unless a time zone is given)",
"type": "string"
},
"current": {
"description": "Current value",
"type": "object"
},
"daily": {
"description": "Daily values",
"type": "array"
},
"latitude": {
"description": "Latitude in decimal degrees",
"type": "number"
},
"longitude": {
"description": "Longitude in decimal degrees",
"type": "number"
},
"next_24_hours": {
"description": "Next 24, in hours",
"type": "array"
},
"note": {
"description": "Caveat or context for reading the result",
"type": "string"
},
"reference_time": {
"description": "Reference time (UTC unless a time zone is given)",
"type": [
"string",
"null"
]
},
"source": {
"description": "Data source the values come from",
"type": "string"
}
},
"required": [
"latitude",
"longitude",
"current"
],
"type": "object"
},
"type": {
"const": "json",
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1791811517/bazaar-icons/bc5e2b3d111ebbef.jpg",
"lastUpdated": "2026-10-19T10:12:55.916Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-10-19T10:12:55.672Z"
},
"resource": "https://saylorinnovations.com/api/weather/sweden",
"serviceName": "Saylor Innovations Data Desk",
"tags": [
"smhi forecast",
"stockholm weather next 24 hours",
"sweden weather by coordinates",
"swedish hourly forecast gusts",
"nordic weather api"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "SMHI Sweden weather forecast for any lat/lon - current conditions, 24 hourly steps with gusts and rain chance, and a daily min/max/precipitation outlook"
}What the leaf hashes
{"body":"1fbee2f187597a7e3d1f99276d7f0541aa29e84aafbfa4dc4159ff4c821799f6","id":120854,"kind":"listing","method":"baseline/1","observed_us":1793025618915767,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/weather/sweden","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).
- 0xbd2b264588ff3348581c750117d1942e366f0a2aadaf7227f5b078077b980365
- 0x41c7bc907fc5147217e988010a48ecb4e690b80a524571709a1f6804fc15a434
- 0xf6a2168541fccbeb243a0475afe1083704430cc4b6c3a084366020de3a6d8845
- 0xd96ac3dc7181a1772c5c34dd9a99150745444c7fe38233e22ee044eeaf55f476
- 0x63bf51819cc578623809bd419c34159334d1c3070a3e8a2f2aca13e405ae7792
- 0xcf713689a1a3b3caa6795523bdfc052cc1ae21b3794105ed4b5901f2f2143a88
- 0x54aeb4117ccc33a90a9307c08aaeade8290bf0fb950c0e77d16bb23be7eb80c6
- 0xbb0492b5a85a05fb1459bbb9342d60a25cad979e1b8a0756dc969e45d4c6326a
- 0x64a2f21b5af86d870bb79dbf55048006abbad7fee92c3e44e2ea5cf5c80c86af
- 0x70fe24d78b58f8abec40e79e3452c3ede45cf737f4a71973b737bc6cdda64101
- 0x135102b1595b48b3b1604ed9b55766b9654dc2e33631a8be15cb316d09a36075
- 0xa6f71fd6c3a59323bf7c5386a54935b14c555d8c717289cc73700f56d86994cd
- 0xd5b5bb5812612371a70171b2252d90e95bb0581ea5a3be198122adc8442e4f79
- 0xf692ce2b0a640ec9f75aa960e5fb1c2c7091a04e24881798735752c19014e519
- 0x9f68b5e15459cb62b8c0cd4c124fa61c74147b4a5755a200fbecd21a581635d1
- 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
- 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
- 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae