← The evidence ledger
Evidence row 117600
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://onchaincheck.dev/base/gas
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- c5ca9c5ae6f02b5cff76baf8edb6c3ae71447bea9a92887304459451cdcd446a
- Leaf
- 0x9bfbec427ebe203b0c2971014bfd4268ee70e3b10b7aacf2bc90414257c49542
What was observed
{
"endpoints": [
[
"x402",
"https://onchaincheck.dev/base/gas"
]
],
"name": "Base Onchain Data",
"owner_address": "0x2ecb9e1fcca7a62758c679f11bc3241466d181d8",
"raw": {
"accepts": [
{
"amount": "5000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0x2ECB9E1fcca7A62758c679F11bC3241466d181d8",
"scheme": "exact"
}
],
"description": "Current Base gas conditions: block number, base fee, gas price and priority fee in gwei, and the estimated cost in ETH and USD of a native transfer and an ERC-20 transfer (Chainlink ETH/USD).",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {},
"type": "http"
},
"output": {
"example": {
"baseFeeGwei": "0.005",
"blockNumber": 52947425,
"blockTime": "2026-10-22T15:49:57.000Z",
"chain": "base",
"estimatedCost": {
"erc20Transfer": {
"native": "0.00000039",
"usd": 0.0009317
},
"nativeTransfer": {
"native": "0.000000126",
"usd": 0.000301
}
},
"gasPriceGwei": "0.006",
"maxPriorityFeeGwei": "0.001",
"nativeSymbol": "ETH",
"nativeUsd": 2388.88,
"note": "Excludes Base's L1 data fee, which adds a small amount per transaction."
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"additionalProperties": false,
"properties": {},
"required": [],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-24T08:19:12.439Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-10-24T08:19:12.112Z"
},
"resource": "https://onchaincheck.dev/base/gas",
"serviceName": "Base Onchain Data",
"tags": [
"base",
"onchain",
"erc20",
"token",
"wallet"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Current Base gas conditions: block number, base fee, gas price and priority fee in gwei, and the estimated cost in ETH and USD of a native transfer and an ERC-20 transfer (Chainlink ETH/USD)."
}What the leaf hashes
{"body":"c5ca9c5ae6f02b5cff76baf8edb6c3ae71447bea9a92887304459451cdcd446a","id":117600,"kind":"listing","method":"baseline/1","observed_us":1793025611662192,"prev":null,"subject":"x402_bazaar:https://onchaincheck.dev/base/gas","subject_kind":"source_record"}Proof
Its day has not closed yet. A day closes ten minutes after midnight UTC; the proof appears here then.