On-chain USDC
…USDC
—
Current credits
—credits
Buy credits · 1 USDC = 100 credits · treasury 0x……
Bal: …
$USDC
You will receive+500credits
Top-up calls USDC.transfer(…) from your wallet. The server reads the receipt and Transfer event to verify before crediting your account. Each tx_hash can only be claimed once.