Prices and payment
USD cents are authoritative. The crypto amount is calculated and locked when an invoice is created. Only BTC on Bitcoin mainnet and USDC or USDT on Solana are accepted.
Payment finality
Fulfillment begins only after the required on-chain settlement and merchant approval. Underpayments, overpayments and ambiguous transfers require manual review.
Availability
Stock is reserved atomically for the invoice window. An expired invoice may release stock after reconciliation.