Privacy in the blockchain: when identity is hidden behind cryptography
The blockchain is often referred to as a transparent system because all transactions on the network can be verified. However, the user's identity can remain hidden thanks to cryptography.
When a person sends cryptocurrency, for example Bitcoin $BTC or Ethereum$ETH , the blockchain records not the owner's name, but only the wallet address. Such an address is a set of characters and does not contain personal information about the user.