Trackerless
Trackerless in BitTorrent means you do not need to connect to a tracker in order to download, but connect to a distributed DHT Network to find other peers. The DHT Network do not have any centeral server, every client is a small server.
What is DHT Network?
DHT(Distributed Hash Table) is method of a distributed storage for <key,value> pairs. There is no center server in DHT Network, every client take charge of a small range of routing, a small set of data storage, so that in the whole DHT network, data can be found, read and write. The new version of BitComet can connect to Tracker and DHT network, that means file can be download even if all trackers can not be connected. The protocol of DHT Network in BitComet is compatible with BitTorrent Beta 4.1.2, so that they can share the same network. Please note that the DHT in Azureus is not compatible with BitTorrent Beta and thus also not compatible with BitComet.
The DHT algorithm we use is Kademlia (......