Blockchain what is it?
Blockchain is like a ledger at everyone's fingertips. It is a chain of transactions in which everything is visible wallets, transactions. It contains blocks linked together😂😂😂😂😂wow
Each block contains:
- Data (information)
Sender wallet address
Recipient wallet address
The amount of Bitcoin transferred - Hash (combination of characters)
- Previous hash
Bitcoin: the reason why the Bitcoin blockchain is secure is proof of work.