Bitcoin 2 is a scalable Bitcoin fork that supports private transactions through the Zerocoin protocol and nearly instantly verified payments by Masternodes. Bitcoin 2 uses a Proof of Stake system that allows anyone even running a basic laptop to get block rewards while contributing to running the blockchain.
ChainX aims to facilitate asset interoperability with other blockchains It measures users' mining power based on the market value of BTC, DOT, ETH, ERC20, EOS and other assets that are deposited in an inter-chain bridge.