by Joseph Poon and Thaddeus Dryja | 2015-02-23
A presentation at a 2015 San Francisco Bitcoin developers meetup discussing Bitcoin's scaling problems and potential solutions. Explains payment channels and hashed time-lock contracts.
Source: https://lightning.network
Blockchain transactions can be circuits instead of packets: Only uncooperative channels get broadcast early on the blockchain Nearly all transactions occur off-chain securely with near-zero custodial default risk Creating new channels are infrequent