Card โ†’ USDC Exchange Terminal Flow

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1. Card Payment

User pays in USD using debit/credit card or Apple Pay.

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2. QR Code

Terminal displays a QR code for verification.

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3. SMS Confirmation

User scans QR and sends pre-filled SMS confirming the exchange.

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4. USDC Sent

Funds instantly converted to USDC and sent to merchant wallet.

Apple Pay / Card Checkout

Fast and secure payment options.

After payment, scan the QR code shown below.

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QR generates SMS confirmation with pre-filled message.

Prefilled SMS Confirmation

User scans QR, opens pre-filled SMS:

To: +1 (555) 123-4567

"I confirm the exchange of $120.00 for 114.63 USDC."

This step verifies the phone number and user consent.

Fee Breakdown & Rate Lock

Amount Paid (USD)$120.00
Processing Fee (3.5%)$4.20
Network Fee$0.60
FX Rate1 USDC = $1.005
Final Amount114.63 USDC

Formula: USDC = (USD โˆ’ Processing โˆ’ Network) รท FX

Merchant Actions Interface

Receive Funds

USDC available to settle: 1,250.00 USDC

All transfers are recorded and auditable. Conversion rates shown before confirmation.

Recent Transactions

TimeAmountStatusRef
10:24$120 โ†’ 114.63 USDCSettled#8F2A
10:11$56 โ†’ 53.17 USDCSettled#7C19
09:57$240 โ†’ 229.85 USDCPending#6B04

Admin Dashboard โ€“ Compliance & Ops

1) Monitor

Live feed of terminal health, transaction volume, and settlement status.

2) Verify

User phone capture + optional KYC tiers, sanctions/PEP checks, geofencing.

3) Report

Export SAR flags, state-by-state limits, fee caps, and audit logs.

Admin Dashboard โ€“ Advanced Controls

Uptime & Health

Uptime 99.97%, avg latency 420ms, last outage: none.

KYC Tiers

Tier 0: SMS โ€ข Tier 1: ID โ€ข Tier 2: Proof of address. Auto-escalation by volume.

Risk & Velocity

Velocity checks, device fingerprint, sanctions/PEP screening.

State Rules

Per-state fee caps, daily limits, geo-fencing applied automatically.