← The evidence ledger
Evidence row 69627
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://api.vextorium.com/divisas-serie-pago
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- cd667c3112999a32858ce67bd29b2b93a9959fb8e75d72bb834fdd013e35ac03
- Leaf
- 0x458b329d2b56ccdc09cf7d67e3e397d691aff8a979409dba64bd1c802329973d
What was observed
{
"endpoints": [
[
"x402",
"https://api.vextorium.com/divisas-serie-pago"
]
],
"name": "EUR exchange rate history",
"owner_address": "0xb9f06d2734b7e9d7b21b64c4d8b95bd774b71acf",
"raw": {
"accepts": [
{
"amount": "4000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf",
"scheme": "exact"
},
{
"amount": "4000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
},
"maxTimeoutSeconds": 300,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "HcjfmZLgWRZzwj4deEiS7pewc4KBYSw39mW5nTyt3pz2",
"scheme": "exact"
},
{
"amount": "4000",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:137",
"payTo": "0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf",
"scheme": "exact"
},
{
"amount": "4000",
"asset": "0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85",
"extra": {
"assets": [
{
"address": "0x0b2c639c533813f4aa9d7837caf62653d097ff85",
"authorizationVersions": [
"1",
"2"
],
"decimals": 6,
"symbol": "USDC"
}
],
"minValiditySeconds": 604800,
"name": "GatewayWalletBatched",
"verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
"version": "1"
},
"maxTimeoutSeconds": 604900,
"network": "eip155:10",
"payTo": "0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf",
"scheme": "exact"
},
{
"amount": "4000",
"asset": "0x3600000000000000000000000000000000000000",
"extra": {
"assets": [
{
"address": "0x3600000000000000000000000000000000000000",
"authorizationVersions": [
"1",
"2"
],
"decimals": 6,
"symbol": "USDC"
}
],
"minValiditySeconds": 604800,
"name": "GatewayWalletBatched",
"verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
"version": "1"
},
"maxTimeoutSeconds": 604900,
"network": "eip155:5042",
"payTo": "0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf",
"scheme": "exact"
},
{
"amount": "0.004",
"asset": "524C555344000000000000000000000000000000",
"extra": {
"areFeesSponsored": false,
"invoiceId": "C55A4B26D9184759AE88FE59B8033175",
"issuer": "rMxCKbEDwqr76QuheSUMdEGf4B9xJ8m5De",
"sourceTag": 804681468
},
"maxTimeoutSeconds": 300,
"network": "xrpl:0",
"payTo": "rEac5rTEr7y81iEyrMTrHCRbnktSE2pNCp",
"scheme": "exact"
},
{
"amount": "3080",
"asset": "XRP",
"extra": {
"areFeesSponsored": false,
"invoiceId": "0FEC44A83F22436B9E4D30C92F3190FB",
"sourceTag": 804681468
},
"maxTimeoutSeconds": 300,
"network": "xrpl:0",
"payTo": "rEac5rTEr7y81iEyrMTrHCRbnktSE2pNCp",
"scheme": "exact"
}
],
"description": "Daily ECB reference exchange rate of a currency against the euro for up to 5 years: latest, change, high, low, average and annualized volatility, with the series.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"dias": 30,
"divisa": "USD"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"cambio_pct": -3.049,
"desde": "2026-09-02",
"fecha": "2026-10-02",
"fuente": "Banco Central Europeo, tipos de cambio de referencia",
"maximo": 1.1652,
"media": 1.1488,
"minimo": 1.1225,
"par": "EUR/USD",
"serie": [
{
"fecha": "2026-09-02",
"valor": 1.1578
},
{
"fecha": "2026-09-03",
"valor": 1.1615
},
{
"fecha": "2026-09-04",
"valor": 1.1622
},
{
"fecha": "2026-09-07",
"valor": 1.1622
},
{
"fecha": "2026-09-08",
"valor": 1.1614
},
{
"fecha": "2026-09-09",
"valor": 1.1652
},
{
"fecha": "2026-09-10",
"valor": 1.1616
},
{
"fecha": "2026-09-11",
"valor": 1.1592
},
{
"fecha": "2026-09-14",
"valor": 1.1551
},
{
"fecha": "2026-09-15",
"valor": 1.1539
},
{
"fecha": "2026-09-16",
"valor": 1.1537
},
{
"fecha": "2026-09-17",
"valor": 1.1481
},
{
"fecha": "2026-09-18",
"valor": 1.146
},
{
"fecha": "2026-09-21",
"valor": 1.149
},
{
"fecha": "2026-09-22",
"valor": 1.1463
},
{
"fecha": "2026-09-23",
"valor": 1.1411
},
{
"fecha": "2026-09-24",
"valor": 1.1367
},
{
"fecha": "2026-09-25",
"valor": 1.1403
},
{
"fecha": "2026-09-28",
"valor": 1.1378
},
{
"fecha": "2026-09-29",
"valor": 1.1355
},
{
"fecha": "2026-09-30",
"valor": 1.1355
},
{
"fecha": "2026-10-01",
"valor": 1.1298
},
{
"fecha": "2026-10-02",
"valor": 1.1225
}
],
"unidades_por_euro": 1.1225,
"volatilidad_anual_pct": 4.37
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"dias": {
"description": "5-1825, default 90",
"type": "integer"
},
"divisa": {
"description": "ISO code, e.g. USD, GBP, JPY",
"type": "string"
}
},
"required": []
},
"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": {
"properties": {
"cambio_pct": {
"type": [
"number",
"null"
]
},
"desde": {
"type": [
"string",
"null"
]
},
"fecha": {
"type": [
"string",
"null"
]
},
"fuente": {
"type": [
"string",
"null"
]
},
"maximo": {
"type": [
"number",
"null"
]
},
"media": {
"type": [
"number",
"null"
]
},
"minimo": {
"type": [
"number",
"null"
]
},
"par": {
"type": [
"string",
"null"
]
},
"serie": {
"items": {
"properties": {
"fecha": {
"type": [
"null",
"string"
]
},
"valor": {
"type": [
"null",
"number"
]
}
},
"type": [
"null",
"object"
]
},
"type": [
"array",
"null"
]
},
"unidades_por_euro": {
"type": [
"number",
"null"
]
},
"volatilidad_anual_pct": {
"type": [
"number",
"null"
]
}
},
"type": [
"object",
"null"
]
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-20T20:43:47.705Z",
"quality": {
"l30DaysTotalCalls": 4,
"l30DaysUniquePayers": 3,
"lastCalledAt": "2026-10-20T20:43:47.194Z"
},
"resource": "https://api.vextorium.com/divisas-serie-pago",
"serviceName": "EUR exchange rate history",
"tags": [
"fx",
"ecb",
"euro",
"history",
"volatility"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Daily ECB reference exchange rate of a currency against the euro for up to 5 years: latest, change, high, low, average and annualized volatility, with the series."
}What the leaf hashes
{"body":"cd667c3112999a32858ce67bd29b2b93a9959fb8e75d72bb834fdd013e35ac03","id":69627,"kind":"listing","method":"baseline/1","observed_us":1793025478696983,"prev":null,"subject":"x402_bazaar:https://api.vextorium.com/divisas-serie-pago","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).
- 0x458b3d14a90f985bf17fdbe234ffaea7ea0b0108fb6b722c07e9da30b5da4fa1
- 0xb5c197d53a37e0a310688da6c86ae3c4042d9e8c2d043f1ed23f985837972c90
- 0xf64bb9b6da4c800860226d24ab1fde3610f3f89cdafc4e3d42fe17fc2a8a0ec4
- 0xacc8cb5547d7873c6326c095ed3b69392f0003947b04d3e52a6f921cbbe95479
- 0xca56799439920d6979c831b6d7ea742d4a6d8c83e96d5ccb99f30941cd45c448
- 0x2f1d8a42d865c50d2bcf7a41845e0ce90eadb0f55de9a5d8bf5bd25036f4e695
- 0x97fac4236d6c020704cf770246d43dc05886fa50f6637c359dbc77d34ebd849d
- 0x14c69bc717852ed2327a8207b6577764a345a59c5a67a7fb88df9aae541c91ad
- 0x8ccae0c72bedadd26237e0b23bd7aec5a02bcf13f1046e422eaa0e21c60ce58b
- 0x75efd3c597556136979ad9d48e37e655b7474b696bfc717fdfd33c62119b363e
- 0x415bf66d9c632a887484603836ad3f90715af6f56ae73f0a5711497372ba0265
- 0x804dd9d5afe0f1a780e24099fb6b21f5f20545893ea0eeddf5fb9114e2f3edd5
- 0x54b29089c0a3cbbd6ddbe58944696110984dd5f418275cb1b77f957c56da8eab
- 0x8b27a4c21bf4ba962fd008c8f4300bc6953764a5032b9ab0cfe696b318c45326
- 0x4b52a97f7a80ff7778a702b85267b8d2e5c93ce160942656435c29ae7be68bf4
- 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
- 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae