solidity-sample

http://diary.shuichi.tech/entry/2017/11/19/173520

• npm i -g truffle
• truffle develop
• var poe = ProofOfExistence3.at(ProofOfExistence3.address)
• poe.checkDocument('hello')
• poe.notarize('hello')
• poe.checkDocument('hello')
• parity --chain kovan --rpccorsdomain "*"