A blockchain is a type of database, or a collection of information, stored in so-called blocks connected through complex cryptographic protocols. These make it almost impossible to compromise the data stored on the blockchain. This is because any changes to one block immediately corrupt the data in other blocks, so it’s obvious that someone has tried to change something. This makes blockchain tamper-evident. Previously recorded data can be updated but not retroactively changed. This means tha...

A blockchain is a type of database, or a collection of information, stored in so-called blocks connected through complex cryptographic protocols. These make it almost impossible to compromise the data stored on the blockchain. This is because any changes to one block immediately corrupt the data in other blocks, so it’s obvious that someone has tried to change something. This makes blockchain tamper-evident. Previously recorded data can be updated but not retroactively changed. This means tha...