Blockchain was invented by a person “Satoshi Nakamoto” in 2008 to perform the public transaction ledger of the cryptocurrency coin (first digital currency). The Blockchain, by the word which says about what it is. Generally, Blockchain is a group of records that are stored in each block which are more secured and linked with each other using cryptography. Each block has a cryptographic hash of the previous block, a timestamp, and transaction data. So, what makes it more Special?. Blockchain is an open distributed ledger that can store each transactional record occurring between two persons in a verified and effective manner. Using Blockchain technology, you can perform any transaction without using centralized servers. And also the information which is open to everyone and we can see it.