As a result of the development of technology, we no longer have to save data in central systems. It is possible to keep as many copies of each data set we want and by distributing these copies. Now, the size of the data does not constitute an obstacle to be copied and distributed to many points, because we have very high speed communication networks.
Blockchain, in computer terminology refers to an ever-growing transaction registry held by chains linked blocks. The store where these blocks, which are connected to each other, store transaction records, is named as digital book.
The foundation of blockchain technology was laid in the early 1990s with the work of cryptography experts Stuart Haber and Scott Stornetta. Starting from the concept of "hash tree" patented by Ralph Merkle in the 1970s, the two experts managed to approach the modern definition of blockchain even though they did not fully conceptualize their work.
Blockchain technology, which has a wide range of work areas, is often referred to as crypto currencies, but is used in many centralized or decentralized industries. Blockchain uses include numerous formal and informal use cases ranging from banks to governments, from smart contracts to notary transactions.
It is known that technology has the potential to cause revolutionary changes and transformations in almost all business models around the world. Today, there are many settlements that integrate blockchain technology into voting systems. In addition, the control of supply chains has become a much more transparent and consistent process with this technology. With the blockchain, all kinds of tools that were previously needed to provide trust are no longer needed. Thanks to this technology, many process procedures that were previously under the control of people are now much more risk-free and transparent.