Multisig example
A simple example on how to use multisig with P2SH, pay to script hash
Libs needed to run this
Important notes
This code is only educational. The purpose is to understand how to build and use multisig transactions. If you want to use this code for a project, feel free do to so, but keep in mind there is plenty of things needed if you want to use this in production. If you run the code as it is, it will build and sign a transaction with one input and the default output is 0.1 mBTC or 100 bits. The input you use should have 0.2 mBTC or 200 bits on it. Leaving 0.1 mBTC as mining fee. The whole input gets spended, so if you are not careful you will end up with a huge mining fee.