← The evidence ledger
Evidence row 119766
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://saylorinnovations.com/api/evm/ethereum/estimate-gas
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 98beca9cd38e6a0bb0d31bfdf3bbc109236668865494ee6b46efa8d4914b31f3
- Leaf
- 0xf5b1f50984f9a6f404d4a2532c4303db17894e3332e4faa7f3528a9e57640663
What was observed
{
"endpoints": [
[
"x402",
"https://saylorinnovations.com/api/evm/ethereum/estimate-gas"
]
],
"name": "Saylor Innovations On-Chain Data",
"owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
"raw": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"assetTransferMethod": "eip3009",
"facilitatorOnly": true,
"memo": "saylor:evm:estimate-gas:ethereum",
"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:evm:estimate-gas:ethereum",
"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:evm:estimate-gas:ethereum",
"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": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
"memo": "saylor:evm:estimate-gas:ethereum",
"reference": "FzeMozLrqbV37QWqnbnvVXYXQDtERk1UZWYuygdDAuz",
"session": "eyJhcnRpY2xlSWQiOiJldm06ZXN0aW1hdGUtZ2FzOmV0aGVyZXVtL2VzdGltYXRlLWdhcyIsInJlZmVyZW5jZSI6IkZ6ZU1vekxycWJWMzdRV3FuYm52VlhZWFFEdEVSazFVWldZdXlnZERBdXoiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFUGpGV2RkNUF1ZnFTU3FlTTJxTjF4enliYXBDOEc0d0VHR2tad3lURHQxdiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjQ3NjE2NjU0Mn0.G_7dYSmZsgZmIGyDzGh-tNyWBg9J_S-f9nmrSiKPY2o"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
"extra": {
"feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
"memo": "saylor:evm:estimate-gas:ethereum",
"reference": "EzHPRimPjNQRLqc64ieKmvL39misazyvxL6TYfWcLhta",
"session": "eyJhcnRpY2xlSWQiOiJldm06ZXN0aW1hdGUtZ2FzOmV0aGVyZXVtL2VzdGltYXRlLWdhcyIsInJlZmVyZW5jZSI6IkV6SFBSaW1Qak5RUkxxYzY0aWVLbXZMMzltaXNhenl2eEw2VFlmV2NMaHRhIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRXM5dk1GcnphQ0VSbUpmckY0SDJGWUQ0S0NvTmtZMTFNY0NlOEJlbndOWUIiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTI0NzYxNjY1NDN9.tpMLi5w4-S4roBwlH849LqWHt0zBynJVWprnwPLpNGI"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
},
{
"amount": "92830",
"asset": "So11111111111111111111111111111111111111112",
"extra": {
"memo": "saylor:evm:estimate-gas:ethereum",
"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": "95702",
"reference": "DokCC9bg3mLRa6BJJ7eYijpYth3Mrv5cRgF1gapE9nrW",
"session": "eyJhcnRpY2xlSWQiOiJldm06ZXN0aW1hdGUtZ2FzOmV0aGVyZXVtL2VzdGltYXRlLWdhcyIsInJlZmVyZW5jZSI6IkRva0NDOWJnM21MUmE2QkpKN2VZaWpwWXRoM01ydjVjUmdGMWdhcEU5bnJXIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjpudWxsLCJtaW5BbW91bnQiOjkyODMwLCJleHAiOjE3OTI0NzYxNjY1NDN9.BFqRkj4vAo0ozMFLZ8y8YJySEMv0cLYuE5roZDW-djw",
"solUsdPrice": 104.49
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
}
],
"description": "Ethereum transaction gas estimate - gas units, gas price and fee in the native coin",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"data": "0x313ce567",
"to": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
},
"type": "http"
},
"output": {
"example": {
"chain": "base",
"error": null,
"est_fee_native": "0.000000126",
"gas": 21000,
"gas_price_gwei": 0.006,
"native": "ETH",
"reverted": false
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"data": {
"description": "optional 0x calldata (query)",
"type": "string"
},
"to": {
"description": "0x target (query)",
"type": "string"
}
},
"required": [
"to"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"chain": {
"description": "Blockchain the data is for",
"type": "string"
},
"error": {
"description": "Error message, if any",
"type": [
"string",
"null"
]
},
"est_fee_native": {
"description": "Estimated fee in the chain native token",
"type": [
"string",
"null"
]
},
"gas": {
"description": "Gas amount",
"type": [
"number",
"null"
]
},
"gas_price_gwei": {
"description": "Gas price in gwei",
"type": [
"number",
"null"
]
},
"native": {
"description": "Native-token balance details",
"type": "string"
},
"reverted": {
"description": "True when the call reverts",
"type": "boolean"
}
},
"required": [
"chain",
"reverted"
],
"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/v1790235422/bazaar-icons/bc5e2b3d111ebbef.jpg",
"lastUpdated": "2026-10-20T06:00:46.575Z",
"quality": {
"l30DaysTotalCalls": 3,
"l30DaysUniquePayers": 3,
"lastCalledAt": "2026-10-20T06:00:46.318Z"
},
"resource": "https://saylorinnovations.com/api/evm/ethereum/estimate-gas",
"serviceName": "Saylor Innovations On-Chain Data",
"tags": [
"evm",
"ethereum",
"estimate-gas",
"onchain"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Ethereum transaction gas estimate - gas units, gas price and fee in the native coin"
}What the leaf hashes
{"body":"98beca9cd38e6a0bb0d31bfdf3bbc109236668865494ee6b46efa8d4914b31f3","id":119766,"kind":"listing","method":"baseline/1","observed_us":1793025616464244,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/evm/ethereum/estimate-gas","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).
- 0xf5b1f16d7ee80e7b2870a716eb91862c88b46829156bae4f526c419347af2a76
- 0xdc50b13f60ab771f4a907c35ef6d234ac7a6e08cbb8ace2d45c7661747298bce
- 0xf6dac712462a967c7b37a8b140cd61aa365a669347c5025ef02d53c655e955d5
- 0x0d6557ee7cf29ec4222c797bfe2b080810a0df4bf2ea3449f93441faa84da4cf
- 0x02d060e2a942b902d4fbfb76ea7541ef7048e9a24fa863ec22a8d2903f63a675
- 0xd821c7601525aff49cd8196bfe3e328d1d102c0ad61d9fcecc95807ee43159c7
- 0x0a1d989ae58068dc5b0d3449c6614fb6d14e6b17d91bfa7aa2b4b1929d56394e
- 0x684d6e28aa7047930fba8de748921bcfe9cad1b296144147c09506ffdea3309f
- 0x1c476ac333e0627bc3a545e9f0f90cdec92ecea14d7d3fde3202a8566e20c153
- 0x806eb8689cec54516a1b1c8b3165343a83bab31d0288d4110634ad3ba83dcfa4
- 0xd1f6cbd0d3ee44ebe2e23b42e7f1822bbdf0afd342375323b5d4f8bc89cd943a
- 0x86ae35463d854f3938d986999aa8497e14f0ba2aa6f39a269e1e6d1134f9b847
- 0x79695e4356ea25a2b58265a824698704cd2c743099ce2dca9e41384ce8f1a8c5
- 0xd769d41500075835c3b2f9184d223699fb983fd05c29fbcb44d964abc7ee380d
- 0x68d296b1e00b4899fb83c3fba36fffaefa311eac2903067dbebfe776a12b4a9a
- 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
- 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae