Ethereum

BlockChain Platform.

Ethereum Philosophy

• A Proof of Stake Design Philosophy (https://medium.com/@VitalikButerin/a-proof-of-stake-design-philosophy-506585978d51)

• in Japanese
  (http://block-chain.jp/tech/ethereum-solidity/)

• Summary Ethereum in Japanese
  (http://block-chain.jp/tech/ethereum-solidity/)

Solidity

Language for Ethereum Virtual Machine

• Tutorial in Japanese (https://github.com/ethereum/wiki/blob/master/%5BJapanese%5D-Solidity-Tutorial.md)