In the digital world Smart contracts have become invincible. One of the applications of smart contracts is
Blockchain has many advantages including decentralization, continuity, privacy, auditability and traceability. There is
a broad variety of blockchain applications from cryptocurrencies, financial services, risk management, internet of
things (IoT), and public and social services. Mining creates new blocks in the chain through secure and robust
consensus. Mining also introduces rewards for the validation work. The blockchain taxonomy, introduces typical
blockchain consensus algorithms. While a range of swotting concentrate on using blockchain technology in various
applications, the unified blockchain does not have a systematic survey of mining techniques. Our motive is to observe
and compare various blockchain mining techniques used by general blockchain applications including crypto
currencies. The analysis will model a comprehensive new optimized blockchain mining architecture which would
incorporate all common parameters as well as differences among the existing architectures. As the architecture gets
designed it will be analyzed and then it will be implemented for validation.
Key words: Blockchain, consensus algorithm, decentralize transaction, security, mining, digital,
cryptocurrency.
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