Blockchain Introduction.
Blockchain Block chain is a decentralised management a public ledger system which provides authenticity of transactions, in a network. A block chain is built with blocks, where blocks are linked together and secured with cryptography. A block is a collection of information which is verified by all nodes in a network or blockchain and then added in an existing blockchain. A block is created after a Proof Of Work (POW), which basically involves a lot of mathematical and computational complexities. However, feasible to calculate a hash for a block in a blockchain, if someone is able to generate a hash for a particular block chain is then rewarded with some bitcoins, and added into the network as a node to maintain transactions, who is so called a miner. Every block contains a cryptographic hash function of previous block with a timestamp and date. A block chain is a technology that can store transactions, records, certificates, shipping information, and other sort