Improved fault tolerance in consensus algorithms for blockchain applications

Abstract

In the recent years, blockchain technology is applied in many cases and fields. blockchain technology starts with crypto currency called bitcoin. followed by smart contract is called digital contract, which is defined as pieces of decentralized code. it performs self-sufficient operation are executed automatically to meet certain conditions. compared with bitcoin application, blockchain technology is more powerful. overall opportunity of blockchain technology is increasing and applicable in industry, financial transaction and healthcare system. consensus is a digital agreement or procedure to make a common decision or agreement in a decentralized network. different methods of consensus are used in blockchain environment and bitcoin network. in decentralized environment, multiple nodes can take own decision whereas some nodes act as a malicious node or faulty node. node comes to the common decision in the decentralized newline newline newline newline