Payment channels and the lightning network aren’t side chains. And there are no IOUs; not sure where that came from. Good podcast about payment channels: https

Payment channels and the lightning network aren’t side chains. And there are no IOUs; not sure where that came from. Good podcast about payment channels: https://letstalkbitcoin.com/blog/post/lets-talk-bitcoin-219 https://letstalkbitcoin.com/blog/post/lets-talk-bitcoin-219 And on the lightning network: https://letstalkbitcoin.com/blog/post/lets-talk-bitcoin-242-meet-the-lightning-network https://letstalkbitcoin.com/blog/post/lets-talk-bitcoin-242-... Lightning Network info site: http://lightning.network http://lightning.network