← The evidence ledger
Evidence row 76212
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://hcrb.in/fx/best-execution-quote
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- dd4045695d6bc7ba945d0d7ec14404790575aa7ac278f78c1b12eeae65e48e61
- Leaf
- 0xbc06a0d15d030c49b58584b2394e3a01d6593897402fcaafa041e4d4691102d6
What was observed
{
"endpoints": [
[
"x402",
"https://hcrb.in/fx/best-execution-quote"
]
],
"name": "hcrb.in/fx/best-execution-quote",
"owner_address": "0xc59c85e661d34084a7769f955d17fd38254a6235",
"raw": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"description": "4-Way Base & Polygon Stablecoin FX Meta-Aggregator Race (KyberSwap, ParaSwap, OpenOcean, Relay) + Pyth Real-Time & 30-Currency ECB MiCA Best-Execution Proof",
"extra": {
"bazaar": true,
"category": "capital-markets-and-iso20022",
"name": "USD Coin",
"operator_checkout_url": "https://hcrb.in/checkout",
"version": "2"
},
"maxTimeoutSeconds": 900,
"mimeType": "application/json",
"network": "eip155:8453",
"outputSchema": {
"input": {
"bodyFields": {
"buy_token": {
"description": "EURC or USDC on Base",
"required": true,
"type": "string"
},
"sell_amount_human": {
"description": "Amount to swap (e.g. 10000)",
"required": true,
"type": "number"
},
"sell_token": {
"description": "USDC or EURC on Base",
"required": true,
"type": "string"
},
"taker_address": {
"description": "Base EVM wallet address executing the swap",
"required": true,
"type": "string"
}
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"description": "4-Way Base Meta-Aggregator Race (KyberSwap, ParaSwap, OpenOcean, Relay) + Pyth Real-Time & ECB MiCA Best-Execution Proof",
"type": "application/json"
}
},
"payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
"resource": "https://hcrb.in/fx/best-execution-quote",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"description": "4-Way Base & Polygon Stablecoin FX Meta-Aggregator Race (KyberSwap, ParaSwap, OpenOcean, Relay) + Pyth Real-Time & 30-Currency ECB MiCA Best-Execution Proof (Polygon USDC)",
"extra": {
"bazaar": true,
"category": "capital-markets-and-iso20022",
"name": "USD Coin",
"operator_checkout_url": "https://hcrb.in/checkout",
"version": "2"
},
"maxTimeoutSeconds": 900,
"mimeType": "application/json",
"network": "eip155:137",
"outputSchema": {
"input": {
"bodyFields": {
"buy_token": {
"description": "EURC or USDC on Base",
"required": true,
"type": "string"
},
"sell_amount_human": {
"description": "Amount to swap (e.g. 10000)",
"required": true,
"type": "number"
},
"sell_token": {
"description": "USDC or EURC on Base",
"required": true,
"type": "string"
},
"taker_address": {
"description": "Base EVM wallet address executing the swap",
"required": true,
"type": "string"
}
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"description": "4-Way Base Meta-Aggregator Race (KyberSwap, ParaSwap, OpenOcean, Relay) + Pyth Real-Time & ECB MiCA Best-Execution Proof",
"type": "application/json"
}
},
"payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
"resource": "https://hcrb.in/fx/best-execution-quote",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "0x60a3E35Cc302bFA44Cb288Bc5a4F316Fdb1adb42",
"description": "4-Way Base & Polygon Stablecoin FX Meta-Aggregator Race (KyberSwap, ParaSwap, OpenOcean, Relay) + Pyth Real-Time & 30-Currency ECB MiCA Best-Execution Proof (Base Circle EURC - AsterPay EUR SEPA Instant)",
"extra": {
"bazaar": true,
"category": "capital-markets-and-iso20022",
"currency": "EURC",
"fx_conversion_required": false,
"name": "EURC",
"operator_checkout_url": "https://hcrb.in/checkout",
"sepa_instant_offramp": "AsterPay_EUR_SEPA_Instant",
"version": "2"
},
"maxTimeoutSeconds": 900,
"mimeType": "application/json",
"network": "eip155:8453",
"outputSchema": {
"input": {
"bodyFields": {
"buy_token": {
"description": "EURC or USDC on Base",
"required": true,
"type": "string"
},
"sell_amount_human": {
"description": "Amount to swap (e.g. 10000)",
"required": true,
"type": "number"
},
"sell_token": {
"description": "USDC or EURC on Base",
"required": true,
"type": "string"
},
"taker_address": {
"description": "Base EVM wallet address executing the swap",
"required": true,
"type": "string"
}
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"description": "4-Way Base Meta-Aggregator Race (KyberSwap, ParaSwap, OpenOcean, Relay) + Pyth Real-Time & ECB MiCA Best-Execution Proof",
"type": "application/json"
}
},
"payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
"resource": "https://hcrb.in/fx/best-execution-quote",
"scheme": "exact"
}
],
"description": "4-Way Base & Polygon Stablecoin FX Meta-Aggregator Race (KyberSwap, ParaSwap, OpenOcean, Relay) + Pyth Real-Time & 30-Currency ECB MiCA Best-Execution Proof",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"buy_token": "EURC",
"chain_id": 8453,
"sell_amount_human": 100,
"sell_token": "USDC",
"tier": "micro"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"description": "4-Way Base Meta-Aggregator Race (KyberSwap, ParaSwap, OpenOcean, Relay) + Pyth Real-Time & ECB MiCA Best-Execution Proof",
"type": "application/json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-21T10:26:12.025Z",
"quality": {
"l30DaysTotalCalls": 4,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-10-21T10:26:11.351Z"
},
"resource": "https://hcrb.in/fx/best-execution-quote",
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "4-Way Base & Polygon Stablecoin FX Meta-Aggregator Race (KyberSwap, ParaSwap, OpenOcean, Relay) + Pyth Real-Time & 30-Currency ECB MiCA Best-Execution Proof"
}What the leaf hashes
{"body":"dd4045695d6bc7ba945d0d7ec14404790575aa7ac278f78c1b12eeae65e48e61","id":76212,"kind":"listing","method":"baseline/1","observed_us":1793025491792407,"prev":null,"subject":"x402_bazaar:https://hcrb.in/fx/best-execution-quote","subject_kind":"source_record"}Proof
Its day has not closed yet. A day closes ten minutes after midnight UTC; the proof appears here then.