← The evidence ledger
Evidence row 76432
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/fx/reference
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 5edd7314eb8e3b013a09b8c2c90c56223ebdf3100d5137a22ec130f1da89bfca
- Leaf
- 0xe0d080614ec1ecd4131909be4a2dc3e9278950efec33e07c468130f71c489bc8
What was observed
{
"endpoints": [
[
"x402",
"https://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/fx/reference"
]
],
"name": "Forest Web",
"owner_address": "0xb48d918151311f982d542ef5c84cc1cd54cff7a9",
"raw": {
"accepts": [
{
"amount": "1000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 120,
"network": "eip155:8453",
"payTo": "0xb48D918151311F982d542eF5C84cc1cd54CFf7a9",
"scheme": "exact"
}
],
"description": "Convert one bounded fiat amount using the latest successfully fetched European Central Bank daily foreign-exchange reference table. Forest returns the ECB observation date and deterministic cross-rates through EUR. Fresh reads use the latest published working-day data; bounded outage fallback is explicitly labeled as cached official data. Reference data only: not an intraday market quote, bid/ask spread, executable transaction price, forecast, or trading recommendation. Base mainnet USDC",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"amount": "100.00",
"from": "USD",
"to": "CZK"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"capability": "fx.reference",
"data": {
"amount": "0",
"amount_rounding_decimals": 6,
"base_source_currency": "EUR",
"cache_age_ms": 0,
"converted_amount": "0",
"freshness": "latest_published_working_day",
"from": "USD",
"observation_date": "2026-01-01",
"reference_rate": "0",
"source": "European Central Bank",
"source_kind": "daily_reference_rate",
"source_url": "https://www.ecb.europa.eu/stats/eurofxref/eurofxref-daily.xml",
"stale_cache_fallback": false,
"to": "USD",
"transaction_quote": false
},
"meta": {
"cache": "miss",
"checked_at": "2026-01-01T00:00:00.000Z",
"duration_ms": 0,
"provider": "ecb-daily-reference"
},
"ok": true,
"version": "1"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"amount": {
"description": "Public amount value used to scope this lookup.",
"type": [
"number",
"string"
]
},
"from": {
"description": "Public from value used to scope this lookup.",
"pattern": "^[A-Za-z]{3}$",
"type": "string"
},
"to": {
"description": "Public to value used to scope this lookup.",
"pattern": "^[A-Za-z]{3}$",
"type": "string"
}
},
"required": [
"from",
"to",
"amount"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"additionalProperties": false,
"properties": {
"capability": {
"const": "fx.reference",
"description": "Public capability value used to scope this lookup."
},
"data": {
"additionalProperties": false,
"description": "Public data value used to scope this lookup.",
"properties": {
"amount": {
"description": "Public amount value used to scope this lookup.",
"pattern": "^-?(?:0|[1-9]\\d*)(?:\\.\\d+)?$",
"type": "string"
},
"amount_rounding_decimals": {
"const": 6,
"description": "Public amount rounding decimals value used to scope this lookup."
},
"base_source_currency": {
"const": "EUR",
"description": "Public base source currency value used to scope this lookup."
},
"cache_age_ms": {
"description": "Public cache age ms value used to scope this lookup.",
"maximum": 604800000,
"minimum": 0,
"type": "integer"
},
"converted_amount": {
"description": "Public amount value used to scope this lookup.",
"pattern": "^-?(?:0|[1-9]\\d*)(?:\\.\\d+)?$",
"type": "string"
},
"freshness": {
"description": "Public freshness value used to scope this lookup.",
"enum": [
"latest_published_working_day",
"cached_official_observation"
],
"type": "string"
},
"from": {
"description": "Public from value used to scope this lookup.",
"pattern": "^[A-Z]{3}$",
"type": "string"
},
"observation_date": {
"description": "Public observation date value used to scope this lookup.",
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"type": "string"
},
"reference_rate": {
"description": "Public amount value used to scope this lookup.",
"pattern": "^-?(?:0|[1-9]\\d*)(?:\\.\\d+)?$",
"type": "string"
},
"source": {
"const": "European Central Bank",
"description": "Public source value used to scope this lookup."
},
"source_kind": {
"const": "daily_reference_rate",
"description": "Public source kind value used to scope this lookup."
},
"source_url": {
"const": "https://www.ecb.europa.eu/stats/eurofxref/eurofxref-daily.xml",
"description": "Public source url value used to scope this lookup."
},
"stale_cache_fallback": {
"description": "Public stale cache fallback value used to scope this lookup.",
"type": "boolean"
},
"to": {
"description": "Public to value used to scope this lookup.",
"pattern": "^[A-Z]{3}$",
"type": "string"
},
"transaction_quote": {
"const": false,
"description": "Public transaction quote value used to scope this lookup."
}
},
"required": [
"from",
"to",
"amount",
"reference_rate",
"converted_amount",
"amount_rounding_decimals",
"observation_date",
"base_source_currency",
"source",
"source_url",
"source_kind",
"freshness",
"stale_cache_fallback",
"transaction_quote",
"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": "2026-10-24T06:54:07.731Z",
"quality": {
"l30DaysTotalCalls": 3,
"l30DaysUniquePayers": 3,
"lastCalledAt": "2026-10-24T06:54:07.348Z"
},
"resource": "https://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/fx/reference",
"serviceName": "Forest Web",
"tags": [
"fx",
"currency",
"ecb",
"reference-rate",
"fiat"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Convert one bounded fiat amount using the latest successfully fetched European Central Bank daily foreign-exchange reference table. Forest returns the ECB observation date and deterministic cross-rates through EUR. Fresh reads use the latest published working-day data; bounded outage fallback is explicitly labeled as cached official data. Reference data only: not an intraday market quote, bid/ask spread, executable transaction price, forecast, or trading recommendation. Base mainnet USDC"
}What the leaf hashes
{"body":"5edd7314eb8e3b013a09b8c2c90c56223ebdf3100d5137a22ec130f1da89bfca","id":76432,"kind":"listing","method":"baseline/1","observed_us":1793025492262965,"prev":null,"subject":"x402_bazaar:https://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/fx/reference","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).
- 0xe0d0eb38a9747398c6bbf16f1f6dd0695075e0519bebe7971d06a5af66c8a4b8
- 0x59e26e4b8eae54affd67ffc321bbecbfec49c06d166a6e65673dbd960f084bd6
- 0x4452eab4824a8f0a6494902ec9f153a903dde7c2134454e6ef3f6223b4c378e3
- 0x4d8bba66ff1dc41c61f20f86214ba6cd4dc133e286a597e076d870ed48dbe815
- 0x0356aa182ab66c9d87443cbf8de3b00eba07a0077cb58344079636d0dfeb6bb0
- 0x0e2f0382262fc824b83188401644dcd8db7a608e1532bec591a8f5f4f135ff04
- 0x9de0c71637fc1cfc282d4f709591bf0492dd85cbd9bfed6f4c2cd93154ea7fab
- 0x4c123e94b99bd81045d878aadd0858f905f5c61e935ee42e628cf377e7906bfa
- 0xc2aa35483c82483e6adcc2b50b366023e07a5a61527ff45372ef558a709ec092
- 0xd3a62dd19c033cefdc0e95b84442d2d997b149848ac391c70f7061b3fe284696
- 0x82d0a2528274b883dc22fee84985c9c34404274baadfb76651d0008598f80bff
- 0x714c96bd488ccf4af927c8bc83397404f7f6f1b165b622d0e8216290209825e4
- 0x3fcdf7fa32ccefe771eb57ae3015142065d64e3ce732fea7d11b9a3c99dde44f
- 0x0b7541c75cc482a7134110311d7dbd02095d969ba21177de9b21a52a55981718
- 0x6dc40f983a3840a0ad927a9ca17f4ff1e3b649a6c735e2a09b140db7c2caf13b
- 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
- 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
- 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae