Bitcoin Protocol and Information Security
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Questions and Answers

What initiates a transaction in Bitcoin?

Digital signatures

Who verifies the transactions in Bitcoin?

Miners

How many blocks does Chamath wait before accepting a transaction in Bitcoin?

Six

How is new currency created in Bitcoin?

<p>By rewarding miners</p> Signup and view all the answers

Where are all transactions recorded in Bitcoin?

<p>Blockchain</p> Signup and view all the answers

What is the size of the blockchain for Bitcoin?

<p>More than 140 gigabyte</p> Signup and view all the answers

What kind of addresses does Bitcoin use?

<p>Cryptographic addresses</p> Signup and view all the answers

What is the recommended waiting time before accepting a transaction in Bitcoin?

<p>Wait 6 blocks (~1 hour)</p> Signup and view all the answers

Who can sign a Bitcoin transaction?

<p>Only you</p> Signup and view all the answers

Who can verify a Bitcoin transaction?

<p>Everyone</p> Signup and view all the answers

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