A break down of smart contracts on bitcoin known as the time lock contract and point time lock contract and why they are used to expand BTC feature sets| The Bitcoin Manual
Your Bitcoin security should always be a number one priority and one of the ways to do that is by multi-sig wallets - find out more here| The Bitcoin Manual
Help support Bitcoin's Lightning Network by setting up a lightning node - find out how to set up a lightning node with detailed instructions.| The Bitcoin Manual
The Lightning Network is built on top of Bitcoin's main chain and facilitates instant and near feeless transactions - find out more here.| The Bitcoin Manual