• Dnyaneshwari Shantanu Patil

With the continuous development and advancements in Blockchain Technology researchers, academicians, scientists, and developers are constantly exploring the practical applications of blockchain for real-life problems. Blockchain is the fundamental principal used to create crypto currencies, like Bitcoin, Litecoin, Ethereum, Altcoins, Polygon, etc. More often the terms bitcoin and blockchain come together. Many people think that Bitcoin is a blockchain, but both are different. Bitcoin is an application of blockchain14 technology. The current paper first introduced the fundamental concepts of blockchain. Crypto currency, Smart contracts, Supply chain management, Identity Management, Cross border payments these are some real-world use cases of blockchain. The blockchain is a peer-to-peer, distributed, decentralized, public, ledger15 that has changed the mechanism of various sectors. Blockchain was introduced in 2008 by Satoshi Nakamoto and since then blockchain has been growing. The Blockchain provides security, anonymity, transparency and data distribution without the need of any intermediator. With the help of blockchain transactions may occur in a trusted environment. Hence blockchains are used for validating transactions, authenticating users, registering transactions, recording data etc. This paper conclusively describes the fundamental concepts of blockchain, real-life applications, the pros and cons of blockchain and the working of blockchain.

Blockchain, Cryptocurrency, Bitcoin, Decentralized, Consensus, Proof of Work, Proof of Stake, Ledger.

"Blockchain Technology - A Pedagogical Review", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.11, Issue 3, page no.i469-i476, March-2024, Available :http://www.jetir.org/papers/JETIR2403858.pdf

"Blockchain Technology - A Pedagogical Review", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.11, Issue 3, page no. ppi469-i476, March-2024, Available at : http://www.jetir.org/papers/JETIR2403858.pdf