← The evidence ledger
Evidence row 120639
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://saylorinnovations.com/api/sports/f1/latest-session
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- c519ce93722f4330630b49278186987f94a245f73736d7991087b398e6eae94b
- Leaf
- 0x3bbce6326ddd2a349c06608a8ca435f347fed21de1b51d26c0d16cf6c29593b5
What was observed
{
"endpoints": [
[
"x402",
"https://saylorinnovations.com/api/sports/f1/latest-session"
]
],
"name": "Saylor Innovations Data Desk",
"owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
"raw": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"assetTransferMethod": "eip3009",
"facilitatorOnly": true,
"memo": "saylor:datadesk:f1-latest-sessio",
"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:f1-latest-sessio",
"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:f1-latest-sessio",
"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": {
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"memo": "saylor:datadesk:f1-latest-sessio",
"reference": "FaAnjnBTSeKhHqMN8WJonop2WRCKuLcc12AUnz76TMMp",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpmMS1sYXRlc3Qtc2Vzc2lvbiIsInJlZmVyZW5jZSI6IkZhQW5qbkJUU2VLaEhxTU44V0pvbm9wMldSQ0t1TGNjMTJBVW56NzZUTU1wIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRVBqRldkZDVBdWZxU1NxZU0ycU4xeHp5YmFwQzhHNHdFR0drWnd5VER0MXYiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTIzODk0NTU3Mzh9.iiZGoYmDmdQ2NOK9hsPUhX36KpdceRvXLwVJE7xdF8E"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
"extra": {
"feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F",
"memo": "saylor:datadesk:f1-latest-sessio",
"reference": "A6P7V4ZJKrBYYepfwNfmnm1HCW36mGWTv19wu8ukCxaX",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpmMS1sYXRlc3Qtc2Vzc2lvbiIsInJlZmVyZW5jZSI6IkE2UDdWNFpKS3JCWVllcGZ3TmZtbm0xSENXMzZtR1dUdjE5d3U4dWtDeGFYIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRXM5dk1GcnphQ0VSbUpmckY0SDJGWUQ0S0NvTmtZMTFNY0NlOEJlbndOWUIiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTIzODk0NTU3Mzh9.3jv5v7uyrpYJ9brrjcsaLPL4eSNMqZ4S6NzeR9RijZw"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
},
{
"amount": "91863",
"asset": "So11111111111111111111111111111111111111112",
"extra": {
"memo": "saylor:datadesk:f1-latest-sessio",
"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": "94705",
"reference": "2GAYwbBq4HJ7Pb4TsGjT8j4pN89QcfWcpXmQH3daUpnm",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpmMS1sYXRlc3Qtc2Vzc2lvbiIsInJlZmVyZW5jZSI6IjJHQVl3YkJxNEhKN1BiNFRzR2pUOGo0cE44OVFjZldjcFhtUUgzZGFVcG5tIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjpudWxsLCJtaW5BbW91bnQiOjkxODYzLCJleHAiOjE3OTIzODk0NTU3Mzh9.GXMV_dlYToF5mpbntEP9uIL6pjCKd8g0uJ_a04XbQc4",
"solUsdPrice": 105.59
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
}
],
"description": "Latest Formula 1 session from OpenF1 - circuit, session type and time, the 22 drivers with teams, the running order or final classification and the podium",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"type": "http"
},
"output": {
"example": {
"classification": [
{
"abbreviation": "VER",
"country": null,
"driver": "Max VERSTAPPEN",
"driver_number": 3,
"position": 1,
"team": "Red Bull Racing"
},
{
"abbreviation": "LEC",
"country": null,
"driver": "Charles LECLERC",
"driver_number": 16,
"position": 2,
"team": "Ferrari"
},
{
"abbreviation": "ANT",
"country": null,
"driver": "Kimi ANTONELLI",
"driver_number": 12,
"position": 3,
"team": "Mercedes"
},
{
"abbreviation": "NOR",
"country": null,
"driver": "Lando NORRIS",
"driver_number": 1,
"position": 4,
"team": "McLaren"
},
{
"abbreviation": "PIA",
"country": null,
"driver": "Oscar PIASTRI",
"driver_number": 81,
"position": 5,
"team": "McLaren"
},
{
"abbreviation": "HAM",
"country": null,
"driver": "Lewis HAMILTON",
"driver_number": 44,
"position": 6,
"team": "Ferrari"
},
{
"abbreviation": "LAW",
"country": null,
"driver": "Liam LAWSON",
"driver_number": 30,
"position": 7,
"team": "Racing Bulls"
},
{
"abbreviation": "HUL",
"country": null,
"driver": "Nico HULKENBERG",
"driver_number": 27,
"position": 8,
"team": "Audi"
},
{
"abbreviation": "RUS",
"country": null,
"driver": "George RUSSELL",
"driver_number": 63,
"position": 9,
"team": "Mercedes"
},
{
"abbreviation": "HAD",
"country": null,
"driver": "Isack HADJAR",
"driver_number": 6,
"position": 10,
"team": "Red Bull Racing"
},
{
"abbreviation": "GAS",
"country": null,
"driver": "Pierre GASLY",
"driver_number": 10,
"position": 11,
"team": "Alpine"
},
{
"abbreviation": "BEA",
"country": null,
"driver": "Oliver BEARMAN",
"driver_number": 87,
"position": 12,
"team": "Haas F1 Team"
},
{
"abbreviation": "OCO",
"country": null,
"driver": "Esteban OCON",
"driver_number": 31,
"position": 13,
"team": "Haas F1 Team"
},
{
"abbreviation": "SAI",
"country": null,
"driver": "Carlos SAINZ",
"driver_number": 55,
"position": 14,
"team": "Williams"
},
{
"abbreviation": "LIN",
"country": null,
"driver": "Arvid LINDBLAD",
"driver_number": 41,
"position": 15,
"team": "Racing Bulls"
},
{
"abbreviation": "ALO",
"country": null,
"driver": "Fernando ALONSO",
"driver_number": 14,
"position": 16,
"team": "Aston Martin"
},
{
"abbreviation": "PER",
"country": null,
"driver": "Sergio PEREZ",
"driver_number": 11,
"position": 17,
"team": "Cadillac"
},
{
"abbreviation": "ALB",
"country": null,
"driver": "Alexander ALBON",
"driver_number": 23,
"position": 18,
"team": "Williams"
},
{
"abbreviation": "BOT",
"country": null,
"driver": "Valtteri BOTTAS",
"driver_number": 77,
"position": 19,
"team": "Cadillac"
},
{
"abbreviation": "STR",
"country": null,
"driver": "Lance STROLL",
"driver_number": 18,
"position": 20,
"team": "Aston Martin"
},
{
"abbreviation": "COL",
"country": null,
"driver": "Franco COLAPINTO",
"driver_number": 43,
"position": 21,
"team": "Alpine"
},
{
"abbreviation": "BOR",
"country": null,
"driver": "Gabriel BORTOLETO",
"driver_number": 5,
"position": 22,
"team": "Audi"
}
],
"drivers": 22,
"note": "OpenF1 timing data for the most recent session (or a given session_key); classification is the last recorded running order, which equals the result once the session has finished.",
"podium": [
"Max VERSTAPPEN",
"Charles LECLERC",
"Kimi ANTONELLI"
],
"session": {
"cancelled": false,
"circuit": "Singapore",
"country": "Singapore",
"end": "2026-10-11T14:00:00.000Z",
"key": 11388,
"location": "Marina Bay",
"name": "Race",
"start": "2026-10-11T12:00:00.000Z",
"type": "Race",
"year": 2026
},
"source": "OpenF1"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"classification": {
"description": "Classification assigned by the source",
"items": {
"properties": {
"abbreviation": {
"description": "Three-letter driver code",
"type": [
"string",
"null"
]
},
"country": {
"description": "Country name"
},
"driver": {
"description": "Driver name",
"type": [
"string",
"null"
]
},
"driver_number": {
"description": "Driver number"
},
"position": {
"description": "Finishing position",
"type": [
"number",
"null"
]
},
"team": {
"description": "Team name",
"type": [
"string",
"null"
]
}
},
"type": "object"
},
"type": "array"
},
"drivers": {
"description": "Number of drivers in the session",
"type": "number"
},
"note": {
"description": "Caveat or context for reading the result",
"type": "string"
},
"podium": {
"description": "Top three finishers in order",
"type": "array"
},
"session": {
"description": "Latest session with key, name, type, circuit, country and start time",
"properties": {
"cancelled": {
"description": "True when the session was cancelled",
"type": [
"boolean",
"null"
]
},
"circuit": {
"description": "Circuit name",
"type": [
"string",
"null"
]
},
"country": {
"description": "Country name",
"type": [
"string",
"null"
]
},
"end": {
"description": "Session end (UTC)",
"type": [
"string",
"null"
]
},
"key": {
"description": "OpenF1 session key",
"type": [
"number",
"null"
]
},
"location": {
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"type": [
"string",
"null"
]
},
"name": {
"description": "Name",
"type": [
"string",
"null"
]
},
"start": {
"description": "Session start (UTC)",
"type": [
"string",
"null"
]
},
"type": {
"description": "Type or kind",
"type": [
"string",
"null"
]
},
"year": {
"description": "Calendar year",
"type": [
"number",
"null"
]
}
},
"type": "object"
},
"source": {
"description": "Data source the values come from",
"type": "string"
}
},
"required": [
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"classification"
],
"type": "object"
},
"type": {
"const": "json",
"type": "string"
}
},
"required": [
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],
"type": "object"
}
},
"required": [
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],
"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": "2026-10-19T05:55:35.778Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-10-19T05:55:35.176Z"
},
"resource": "https://saylorinnovations.com/api/sports/f1/latest-session",
"serviceName": "Saylor Innovations Data Desk",
"tags": [
"latest f1 race result",
"who won the last grand prix",
"formula 1 session classification",
"f1 podium from the most recent",
"f1 drivers and teams this season"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Latest Formula 1 session from OpenF1 - circuit, session type and time, the 22 drivers with teams, the running order or final classification and the podium"
}What the leaf hashes
{"body":"c519ce93722f4330630b49278186987f94a245f73736d7991087b398e6eae94b","id":120639,"kind":"listing","method":"baseline/1","observed_us":1793025618404614,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/sports/f1/latest-session","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).
- 0x3bbd012a4933ac0fec262ced2ddeda8381c3c9e7f1c50f280879128774ba4b1e
- 0x301563da5da74f6041c1062752f1c8be4d1c804415ec275a44b0e50864cc5f97
- 0xe247b766ea37253d70f2dc6cb03cbd3efb5f12df443f17082bb154a56c949da6
- 0x8f2773e521ffe69a7f155bb43abfd45ba0decfa37aa55189e3bff8b54096e4b3
- 0x8e3882070f9e6cae507c3382769dc793af1af47eaa410b1283147bb10d140eab
- 0xcbb40c84430d9f8696aacb67170d52ce5b3e3a8ed491e1165d82839e4e7b04d9
- 0xfebf2268835619c7b00f817c341601259cb8f9618499328750019bd9922d8032
- 0x128250cc4f932a3f2b23ad9d9e16c0ddb977c9b80c527ab4c9addae77b8fe679
- 0xf2faf4093728c777232702b119748ec430da4271007ae8518a236a38e4851f96
- 0x2e8a687ff66d8afe58fa1b3504a221aae25ce629dbb3718301a0d0479898a139
- 0x876d91ae08f3c341c1d9ba4ed92a9c937c054b5c7d6cd935bb21dda6fb029cac
- 0xdb4b9388e3fe1df4b04e149e559f925fb354066ae1d2537fd6f918162716fadf
- 0xe2214b3d6a48396930d1739b02ea366de2aac5337c9b9ff2aff28cecf6518139
- 0x7f594f5609f388d64d3cda87b5631d393ee8300bb09bad71f150113a5886ee33
- 0x4b52a97f7a80ff7778a702b85267b8d2e5c93ce160942656435c29ae7be68bf4
- 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
- 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae