"the basic idea is we identify content by its cryptographic hash... I can simply ask the IPFS network for the file with that exact CID, the network will find the peers that have the data (using a DHT), retrieve it, and verify (using the CID) that it’s the correct file."
https://ipfs.io/
"IPFS aims to replace HTTP and build a better web for all of us."
https://medium.com/textileio/enabling-the-distributed-web-ab...
"the basic idea is we identify content by its cryptographic hash... I can simply ask the IPFS network for the file with that exact CID, the network will find the peers that have the data (using a DHT), retrieve it, and verify (using the CID) that it’s the correct file."