Should users decide to use any public blockchain to settle a payment, any online blockchain explorer of the respective cryptocurrency will show all its transactions, and users can find their own payments usually indicating either the sender’s or the receiver’s address and/or the transaction ID. This serves a definitive proof of payment, should problems arise. The listing provider should have shared his receiving address via internal messaging, and together with the reservation’s data in users’ accounts, it can be confirmed that dates, addresses and quantities match.
More private cryptocurrencies like Monero might obfuscate transactions, but nevertheless the wallets used to send the funds should always offer a possibility to share a transaction ID, a view key, or something in the likes. Blockchain explorers also exist for those cryptocurrencies, leaving relatively few options that really can’t provide a definitive proof of payment.
Users that choose to pay through our payment gateway should copy the Transaction ID displayed. Like this, payment details will be easily accessible for a certain period of time to confirm their correctness.