チャールス、サイドチェーン
チャールスのインタビュー。https://letstalkbitcoin.com/blog/post/xcp-update-10-11-15-charles-hoskinson-talks-blockchain
http://www.coindesk.com/blockstream-commercial-sidechain-bitcoin-exchanges/
https://bitcoinmagazine.com/articles/blockstream-to-launch-first-instant-settlement-sidechain-for-bitcoin-exchanges-1444755147