"Understanding Bitcoin and Its Mechanisms" by Denny Portillo

To verify user identities

To store transaction data

To generate new coins

To prevent double-spending

By limiting transaction visibility

Through trusted third parties

By using anonymous public keys

By encrypting transaction details

To store user data

To create new coins

To manage user accounts

To validate transactions

Faster transaction processing

Anonymity of users

Decentralization of control

Security against double-spending

It creates a new coin

It increases transaction fees

It deletes old transactions

It broadcasts the block to all nodes