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 that all information can be traced thanks to a timestamp, checked again at any point, and can serve as a sort of digital fingerprint.

Blockchain has some other specifics that set it apart from other, more traditional databases. These are often considered the three pillars of blockchain.

Blockchain has three main characteristics:

1. Immutability

2. Decentralization

3. Transparency

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 that all information can be traced thanks to a timestamp, checked again at any point, and can serve as a sort of digital fingerprint.

Blockchain has some other specifics that set it apart from other, more traditional databases. These are often considered the three pillars of blockchain.

Blockchain has three main characteristics:

1. Immutability

2. Decentralization

3. Transparency