Peer-to-Peer Payment

Overview

A blockchain P2P payment usually begins when the payer receives a destination address, payment request, or QR code. The payer selects the network and asset, signs the transaction, and submits it. The recipient or payment service monitors the network for detection and confirmation.

The transfer may be direct between self-custodial wallets. In that case, the blockchain records the movement, and the sender pays the network fee. A custodial application can instead update its internal ledger immediately and settle on-chain later or not at all for each user transfer.

Safety requires address and network verification. A valid transaction sent to the wrong network or token contract can be difficult to recover. Payment instructions may also need a memo or destination tag.

P2P payments can support personal transfers, remittances, marketplace trades, and social payments. However, fraud protection and dispute handling differ from card or bank systems. A finalized self-custodial transfer usually cannot be reversed without the recipient’s cooperation.

Applications should explain custody, fees, limits, confirmation timing, privacy, and refund options. A simple send button can hide significantly different technical and legal models underneath.

P2P interfaces should distinguish requesting a payment from authorizing one. A QR code or link can contain the destination and amount, but the payer’s wallet should verify the network and show the final transaction before signing. Social engineering can replace payment requests with attacker-controlled addresses. Trusted contact lists, verified usernames, and out-of-band confirmation reduce this risk for important transfers. Fraud controls should remain proportional because direct settlement does not remove account takeover, phishing, or coercion risks.