On-chain confirmations
An on-chain confirmation is one block mined on top of the block containing your transaction. Ounceo requires 2 confirmations for BTC on-chain (~20 minutes), 10 for XMR (~20 minutes), 20 blocks for ETH and ERC-20/TRC-20 stablecoins (~5 minutes on ETH, ~1 minute on TRON, ~10 seconds on Solana).
The number of confirmations required by a merchant is a security parameter: with each additional confirmation, the probability of a reorganization reversing the transaction falls exponentially.
Two confirmations on BTC is the industry standard for low-to-medium value e-commerce. For large orders we may wait for additional confirmations at our discretion, with the customer notified.
Related terms
Bitcoin is the original cryptocurrency. Ounceo accepts BTC both on-chain (2 confirmations, ~20 minutes) and via Lightning Network (instant settlement, 0.5% discount). Quote prices are USD-denominated; the BTC amount is locked for 30 minutes against the live BTC/USD rate at quote issuance.
Monero is a privacy-focused cryptocurrency that uses ring signatures, stealth addresses, and confidential transactions to make on-chain analysis infeasible. Ounceo accepts XMR directly (most bullion dealers route crypto through BitPay, which does not support XMR) and applies an automatic 1.5% discount.