1. Bitcoin: A Peer-to-Peer Electronic Cash Systemhttps://www.bitcoin.org/bitcoin.pdf
2. Blockchain: Blueprint for a New Economy;Swan,2015
3. Mastering Blockchain;Bashir,2017
4. A next-generation smart contract and decentralized application platform;Buterin;Etherum,2014
5. Whitepaper Introduction Hyperledgerhttps://www.hyperledger.org/wp-content/uploads/2018/07/HL_Whitepaper_IntroductiontoHyperledger.pdf