Qrupus
Qrupus is a decentralized, peer-to-peer file-sharing network that allows users to share and download files without the need for a central server. It was created in 2000 by the same developers who later created the BitTorrent protocol. Qrupus uses a distributed hash table (DHT) to connect users and facilitate file sharing. The network is designed to be resilient and scalable, with no single point of failure. Users can search for files using keywords, and the network will return a list of available files that match the search criteria. Once a file is found, users can download it directly from other users who have the file. Qrupus is open-source software, and the source code is available for anyone to use or modify. The network has been used for a variety of purposes, including sharing music, movies, and software. However, it has also been used for illegal activities, such as sharing copyrighted material without permission. As a result, many internet service providers have blocked access to Qrupus. Despite this, the network continues to be popular among users who value privacy and decentralization.