← The evidence ledger
Evidence row 76404
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/chain/gas-snapshot
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 04d695185fb1cd64f99c5733986d81192fa07a61036abab042b860fb57769995
- Leaf
- 0x0176119cf6bcfb4710df09156214e592bc23f584a7e7d1d3c3d9c6955595a03c
What was observed
{
"endpoints": [
[
"x402",
"https://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/chain/gas-snapshot"
]
],
"name": "Forest Web",
"owner_address": "0xb48d918151311f982d542ef5c84cc1cd54cff7a9",
"raw": {
"accepts": [
{
"amount": "2000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 120,
"network": "eip155:8453",
"payTo": "0xb48D918151311F982d542eF5C84cc1cd54CFf7a9",
"scheme": "exact"
}
],
"description": "Return one bounded current EVM fee-history snapshot for a fixed supported chain using SolidRPC public JSON-RPC. Forest reports recent base-fee and latest sampled-block priority-fee percentile evidence only; it does not estimate a caller transaction gas limit, simulate, sign or broadcast a transaction, access a wallet, choose a transaction fee for the caller or guarantee an optimal fee. Base mainnet USDC",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"chain": "base"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"capability": "chain.gas-snapshot",
"data": {
"base_fee": {
"latest_wei": "1",
"next_wei": "1"
},
"cache_age_ms": 0,
"chain": "ethereum",
"chain_id": 1,
"freshness": "current_upstream_snapshot",
"gas_used_ratio": [
0,
0,
0,
0
],
"oldest_block": "1",
"priority_fee_percentiles_wei": {
"p25": "1",
"p50": "1",
"p90": "1"
},
"sampled_blocks": 4,
"source": "SolidRPC public EVM JSON-RPC",
"source_method": "eth_feeHistory",
"transaction_broadcast": false,
"transaction_simulated": false
},
"meta": {
"cache": "miss",
"checked_at": "2026-01-01T00:00:00.000Z",
"duration_ms": 0,
"provider": "solidrpc-public"
},
"ok": true,
"version": "1"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"chain": {
"description": "Public chain value used to scope this lookup.",
"enum": [
"ethereum",
"optimism",
"bnb",
"polygon",
"base",
"arbitrum",
"avalanche"
],
"type": "string"
}
},
"required": [
"chain"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"additionalProperties": false,
"properties": {
"capability": {
"const": "chain.gas-snapshot",
"description": "Public capability value used to scope this lookup."
},
"data": {
"additionalProperties": false,
"description": "Public data value used to scope this lookup.",
"properties": {
"base_fee": {
"additionalProperties": false,
"description": "Public base fee value used to scope this lookup.",
"properties": {
"latest_wei": {
"description": "Public latest wei value used to scope this lookup.",
"pattern": "^(?:0|[1-9]\\d*)$",
"type": "string"
},
"next_wei": {
"description": "Public next wei value used to scope this lookup.",
"pattern": "^(?:0|[1-9]\\d*)$",
"type": "string"
}
},
"required": [
"latest_wei",
"next_wei"
],
"type": "object"
},
"cache_age_ms": {
"description": "Public cache age ms value used to scope this lookup.",
"maximum": 60000,
"minimum": 0,
"type": "integer"
},
"chain": {
"description": "Public chain value used to scope this lookup.",
"enum": [
"ethereum",
"optimism",
"bnb",
"polygon",
"base",
"arbitrum",
"avalanche"
],
"type": "string"
},
"chain_id": {
"description": "Public chain id value used to scope this lookup.",
"minimum": 1,
"type": "integer"
},
"freshness": {
"const": "current_upstream_snapshot",
"description": "Public freshness value used to scope this lookup."
},
"gas_used_ratio": {
"description": "Public gas used ratio value used to scope this lookup.",
"items": {
"maximum": 1,
"minimum": 0,
"type": "number"
},
"maxItems": 4,
"minItems": 4,
"type": "array"
},
"oldest_block": {
"description": "Public oldest block value used to scope this lookup.",
"pattern": "^(?:0|[1-9]\\d*)$",
"type": "string"
},
"priority_fee_percentiles_wei": {
"additionalProperties": false,
"description": "Public priority fee percentiles wei value used to scope this lookup.",
"properties": {
"p25": {
"description": "Public p25 value used to scope this lookup.",
"pattern": "^(?:0|[1-9]\\d*)$",
"type": "string"
},
"p50": {
"description": "Public p50 value used to scope this lookup.",
"pattern": "^(?:0|[1-9]\\d*)$",
"type": "string"
},
"p90": {
"description": "Public p90 value used to scope this lookup.",
"pattern": "^(?:0|[1-9]\\d*)$",
"type": "string"
}
},
"required": [
"p25",
"p50",
"p90"
],
"type": "object"
},
"sampled_blocks": {
"const": 4,
"description": "Public sampled blocks value used to scope this lookup."
},
"source": {
"const": "SolidRPC public EVM JSON-RPC",
"description": "Public source value used to scope this lookup."
},
"source_method": {
"const": "eth_feeHistory",
"description": "Public source method value used to scope this lookup."
},
"transaction_broadcast": {
"const": false,
"description": "Public transaction broadcast value used to scope this lookup."
},
"transaction_simulated": {
"const": false,
"description": "Public transaction simulated value used to scope this lookup."
}
},
"required": [
"chain",
"chain_id",
"oldest_block",
"sampled_blocks",
"base_fee",
"priority_fee_percentiles_wei",
"gas_used_ratio",
"source",
"source_method",
"freshness",
"transaction_simulated",
"transaction_broadcast",
"cache_age_ms"
],
"type": "object"
},
"meta": {
"additionalProperties": false,
"description": "Public meta value used to scope this lookup.",
"properties": {
"cache": {
"description": "Public cache value used to scope this lookup.",
"enum": [
"hit",
"miss",
"bypass"
]
},
"checked_at": {
"description": "Public checked at value used to scope this lookup.",
"type": "string"
},
"duration_ms": {
"description": "Public duration ms value used to scope this lookup.",
"minimum": 0,
"type": "integer"
},
"provider": {
"description": "Public provider value used to scope this lookup.",
"type": [
"string",
"null"
]
}
},
"required": [
"provider",
"checked_at",
"cache",
"duration_ms"
],
"type": "object"
},
"ok": {
"const": true,
"description": "Public ok value used to scope this lookup."
},
"version": {
"const": "1",
"description": "Package version whose public metadata should be checked."
}
},
"required": [
"ok",
"capability",
"version",
"data",
"meta"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-26T00:18:50.166Z",
"quality": {
"l30DaysTotalCalls": 4,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-10-26T00:18:49.906Z"
},
"resource": "https://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/chain/gas-snapshot",
"serviceName": "Forest Web",
"tags": [
"evm",
"gas",
"fees",
"fee-history",
"base-fee"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Return one bounded current EVM fee-history snapshot for a fixed supported chain using SolidRPC public JSON-RPC. Forest reports recent base-fee and latest sampled-block priority-fee percentile evidence only; it does not estimate a caller transaction gas limit, simulate, sign or broadcast a transaction, access a wallet, choose a transaction fee for the caller or guarantee an optimal fee. Base mainnet USDC"
}What the leaf hashes
{"body":"04d695185fb1cd64f99c5733986d81192fa07a61036abab042b860fb57769995","id":76404,"kind":"listing","method":"baseline/1","observed_us":1793025492227100,"prev":null,"subject":"x402_bazaar:https://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/chain/gas-snapshot","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).
- 0x0176108b7bef2babacd13e4e0fd477618ba498dbfb051a2981a8bed717c01233
- 0x6803aafd6a1f89fd3531a37f09386d814ec2b4db83891aca1c384e270e2d5f4d
- 0xdbfe2a59b6c4a1ba91d63a36fdfbd6e35400ba17d5faf6fe183a540ed312d198
- 0xa421d7f2cd9b2cef293db38fc7cf14fb59d0dbecaf79377bccb343578faead5c
- 0x32b54617191c5c6e870336202d8e49766f1e1944fa4243c9c89969da2d1312ca
- 0x143141683b083331bd6e158ab1542b40e23478a2d79f7fbef500b54a16793d7d
- 0x492802065d2e6eafc781b647ecf1b4b2dcb6505210b563bdd0fa3a93967c5a49
- 0x98231fe4658a1da7786f63e36ce693eacba07d34505bba0ac4ab6c3eedb89aee
- 0x6f9f32f8dee03dc8a2b7a23278fac64d4b56353e3c998aa67f6d60cb88715fcd
- 0x85169a6117e10c7135af42ad727319d6b57941ee86aa8669f8bb9b75982421cf
- 0xdbc41a9a60a4504b5d2eaf9b4bdc4f7e216ca3dfaa1fe4bcdd27541133e12a2d
- 0x9d52e830c7a3480876eca1592c3b5c4a56ee3a8c6fdd4e37c57710b7654e36c7
- 0x92ff7d176556ddbe3d885e2ab73948b14a6aa3568a8fd237427d4f8415235a23
- 0xd1d3499072edb10edc68f84bcae2365d2ab534df689250cab18c751b6f13b6ff
- 0x7ddc2fead128357f881b63e6c7c26d7fbbb84fca6c7c8e0bbfe386de86ca8d39
- 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
- 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae