How blockchain works Blockchain is a distributed database, which consists of two records: Individual transactions Blocks Individual transactions consist of “Header” and “Data” which is related to transactions. Transactions take place for a given period of time. Block is used to create alphanumeric string called as “Hash”.When the first record is created, the next block takes previous block’s Hash for creation of their own Hash. This is authenticated or validated. At this point of the Blockchain process, a majority of nodes in the network must agree the new block’s hash is correctly calculated and ensures that all copies of the distributed ledger share the same state. Once block added, cannot be changed. If we try to change or swap that block, the hashes for previous and subsequent blocks will also change. The other computers in the network will also understand that problem and they will never add new block, until the problem is resolved. When the problem is so...