BLOCKCHAIN ESSENTIALS: A COMPREHENSIVE GUIDE TO UNDERSTANDING AND IMPLEMENTING BLOCKCHAIN

Mr. Gunawan Widjaja

Aug 2023 · Xoffencerpublication

Ebook

223

Pages

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About this ebook

The blockchain is a decentralized digital ledger that makes it possible to conduct transactions and store data in a way that is both safe and transparent. It came to widespread attention as the technology that underpins cryptocurrencies such as Bitcoin, but the scope of its possible uses is far broader than that. A blockchain may be broken down into its most fundamental component, which is a chain of blocks. Within each block is a list of transactions or data items. These blocks are connected to one another via the use of cryptographic hashes, which results in the formation of an unchangeable and tamper-proof ledger. Rather of depending on a single authority to validate and record transactions, such as a bank or government, blockchain technology enables a distributed network of participants to collectively verify and maintain the integrity of the ledger. This eliminates the need to rely on a central authority to authenticate and record transactions. The blockchain network does not have a centralized authority; rather, it is decentralized, with numerous participants, also known as nodes, maintaining different copies of the ledger. As a result, there is no longer a need for middlemen, which in turn minimizes the likelihood of having a single point of failure. The members in the blockchain network are able to see the transactions that take place on the distributed ledger, and any modifications that are made to the ledger are publicly recorded. Because of this openness, trust and accountability are encouraged, since any participant may check the accuracy of the data at any time. The data that is kept on the blockchain is protected from unauthorized access and altered by other parties thanks to the use of cryptographic techniques. Because each block is connected to the one before it by a hash, it is computationally expensive to change prior transactions without impacting later blocks. This is because each block is linked to its predecessor.

About the author

Mr. Gunawan Widjaja is a multitalented person. He had a Bachelor in Pharmaceutical Science (BPharm), a Master of Public Health (MPH), and a Master of Hospital Administration (MHA) from the Postgraduate Study Faculty of Public Health, Universitas Indonesia. He also graduated from the Faculty of Law, obtained his LLM, and completed his Doctor of Philosophy (Ph.D.) from the same University. He also holds a Master in Management degree majoring in Finance. Currently, he teaches at the Postgraduate Study Faculty of Public Health Universitas Indonesia and Faculty of Law Universitas Pancasila. He has written about 50 books and many papers in national and international journals, including Scopus Indexed Journals, as well as reviewed them. He actively participated in many seminars, symposiums, and conferences; and also acts as an arbitrator in many International Arbitration centers such as SIAC, SHAC, and GIDI.

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