← The evidence ledger
Evidence row 67995
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://saylorinnovations.com/api/auto/trip-cost
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- cb5aa37d5a74f56f25ae4c3c151758946949497057bafc1d7f13205cca07506d
- Leaf
- 0xeba39b75ab390086af2a46ed209044bd2a22f343d25e641a019f6a9fd5fd91af
What was observed
{
"endpoints": [
[
"x402",
"https://saylorinnovations.com/api/auto/trip-cost"
]
],
"name": "Saylor Innovations Road Trip Fu",
"owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
"raw": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"assetTransferMethod": "eip3009",
"facilitatorOnly": true,
"memo": "saylor:auto:trip-cost",
"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:auto:trip-cost",
"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:auto:trip-cost",
"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": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
"memo": "saylor:auto:trip-cost",
"reference": "6dxc95R9Vhu6hj1E9mYtUAfdXRx89uftZzXFTnsk6fZ5",
"session": "eyJhcnRpY2xlSWQiOiJhdXRvOnRyaXAtY29zdCIsInJlZmVyZW5jZSI6IjZkeGM5NVI5Vmh1NmhqMUU5bVl0VUFmZFhSeDg5dWZ0WnpYRlRuc2s2Zlo1IiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRVBqRldkZDVBdWZxU1NxZU0ycU4xeHp5YmFwQzhHNHdFR0drWnd5VER0MXYiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTI5OTcxMDMwMjJ9.A12OAZnxeEQsCfKSAyehxGpjwQR83_HOmLURr0KljAw"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
"extra": {
"feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
"memo": "saylor:auto:trip-cost",
"reference": "9dYtdet3KjMXFFAf8Tsp6KGKKgSzVy5zRtiHkcnoDWi8",
"session": "eyJhcnRpY2xlSWQiOiJhdXRvOnRyaXAtY29zdCIsInJlZmVyZW5jZSI6IjlkWXRkZXQzS2pNWEZGQWY4VHNwNktHS0tnU3pWeTV6UnRpSGtjbm9EV2k4IiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRXM5dk1GcnphQ0VSbUpmckY0SDJGWUQ0S0NvTmtZMTFNY0NlOEJlbndOWUIiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTI5OTcxMDMwMjJ9.ichZyzlb7QT2aXX5WkPBUTp2MGza6EwpJNec7-SFtXg"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
},
{
"amount": "96257",
"asset": "So11111111111111111111111111111111111111112",
"extra": {
"memo": "saylor:auto:trip-cost",
"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": "99235",
"reference": "6LYnWLjjVwix3iNsye8GCgBxQCmteusCxxLMCwxLsa71",
"session": "eyJhcnRpY2xlSWQiOiJhdXRvOnRyaXAtY29zdCIsInJlZmVyZW5jZSI6IjZMWW5XTGpqVndpeDNpTnN5ZThHQ2dCeFFDbXRldXNDeHhMTUN3eExzYTcxIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjpudWxsLCJtaW5BbW91bnQiOjk2MjU3LCJleHAiOjE3OTI5OTcxMDMwMjJ9.4zVubB6rUV18-_dN9GRGNi45gH-nhgJDrC64Hu6RmuQ",
"solUsdPrice": 100.77
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
}
],
"description": "Fuel cost, split, speed penalty and per-mile cost with the IRS rate as a comparison",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"distance": "450",
"mpg": "28",
"people": "3",
"price_per_gallon": "3.45",
"round_trip": "true",
"speed_mph": "75",
"tolls": "12"
},
"type": "http"
},
"output": {
"example": {
"fuel_cost": 110.9,
"per_person": 41.6
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"distance": {
"description": "required one-way distance (query)",
"type": "string"
},
"mpg": {
"description": "optional fuel economy in mpg (or l_per_100km) (query)",
"type": "string"
},
"people": {
"description": "optional number of people sharing, default 1 (query)",
"type": "string"
},
"price_per_gallon": {
"description": "optional fuel price per US gallon, default 3.50 (query)",
"type": "string"
},
"round_trip": {
"description": "optional true to double (query)",
"type": "string"
},
"speed_mph": {
"description": "optional average highway speed for penalty, default 65 (query)",
"type": "string"
},
"tolls": {
"description": "optional total tolls (query)",
"type": "string"
}
},
"required": [
"distance"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"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/v1792548358/bazaar-icons/bc5e2b3d111ebbef.jpg",
"lastUpdated": "2026-10-26T06:43:03.063Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-26T06:43:02.761Z"
},
"resource": "https://saylorinnovations.com/api/auto/trip-cost",
"serviceName": "Saylor Innovations Road Trip Fu",
"tags": [
"automotive",
"ev",
"tires",
"towing",
"lease"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Fuel cost, split, speed penalty and per-mile cost with the IRS rate as a comparison"
}What the leaf hashes
{"body":"cb5aa37d5a74f56f25ae4c3c151758946949497057bafc1d7f13205cca07506d","id":67995,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793025465538169,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/auto/trip-cost","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).
- 0xeba4283e8bf6e8b1b0d084934d8120c419289a56cce85618910d970551e9598e
- 0x156a08169f829e6533d257b8b5ffe747e82cd0c54a225480acbb48407be3b7d7
- 0x88cfa35e651a3e52ef13d223556aa7a716684c14ca78db5534856ca24cfbdad4
- 0x1ac8c6e5fe3e8077a2b4e58db8538f7b3443b25f800fd3c2d7909abb83824493
- 0x4a0c45943f217b31497a666d2c872b0dd6c8613d12d9e613db0773c439c0af7b
- 0xdc94b40cfb1d61908fe0bd2e3d36a4ed74ef018b97b009321d99ea29470a5568
- 0xb77d5c99fa5f3529e665ceac2e72a088ca080aa72a6472e9fc721563b70af6dc
- 0x0e19f445f111f110abc29fe079df634d90e50d31cedfad219c60336320a3ce87
- 0x10a8e08bd4a419c09a150fde7bc7aa45ea7501fa7691a671a515d5f640ca92ae
- 0xb598275c2ff75ff17a9919c2777963ccbcc1ef88c33df05a94500ee63d2a5601
- 0x9fa929c4db0d6b2b1aa73d590a53584134638629c20773074b1277326c981fb4
- 0x4bac6365a3676c613d57c80f4d4f617e583205074db24f3dec4d2ed4939a26e6
- 0xec98ca25cb12ffed7c3e1373971719ce414ee6deecd1e7724b2979e2c356d99f
- 0x614d844c9e0509d9f9e63697aa2935555bce5f13695a8dc0047aa9e9898d70b3
- 0x95657a7d540ed6cac0bde9995782333b2562a9a6641853269ac95148827410f0
- 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
- 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae