Lightning Bitcoin is a fork of the Bitcoin blockchain. By adopting DPoS consensus mechanism with 2M blocksize, Lightning Bitcoin improves transaction speed, promotes decentralization and also supports smart contracts. Lightning Bitcoin combines the advantages of Bitcoin and Ethereum and creates a more valuable and functional blockchain system.
Bitcoin Confidential is a new coin focused on confidentiality/privacy that will be Proof of Stake, using Ring Confidential Signatures and based on the latest Bitcoin codebase for compatibility.