How do you use hash table in p2p network?

In a peer-to-peer (P2P) network, hash tables are often used to efficiently locate and retrieve data across distributed nodes. Each node maintains a portion of the hash table, mapping unique identifiers (like file hashes) to the locations of data stored on other peers. When a node wants to find a specific piece of data, it can use the hash table to quickly determine which peer is likely to have it, minimizing search time. This decentralized approach enhances scalability and resilience, as no single point of failure exists.