Peer-to-peer (P2P) describes a network architecture where participants interact directly with each other without needing a central server or authority. Blockchain networks are fundamentally P2P systems.
P2P in Crypto
P2P Networks: Bitcoin and other blockchain nodes communicate directly with each other, sharing transactions and blocks without a central server.
P2P Trading: Platforms like Paxful and Bisq allow users to trade crypto directly with each other, often using escrow smart contracts for security.
P2P Lending: DeFi protocols enable direct lending and borrowing between users without a bank.
Advantages
Censorship Resistance: No single point of control that can be shut down.
No Single Point of Failure: The network continues even if individual nodes go offline.
Privacy: Direct transactions can provide more privacy than going through intermediaries.
Satoshi's Vision
Bitcoin's whitepaper is titled "Bitcoin: A Peer-to-Peer Electronic Cash System" — P2P architecture is at the very foundation of cryptocurrency.