Andreas explains how mining Bitcoin involves hashing, puzzle-solving, and a special number called the nonce.

0:00 What miners do to solve the mining puzzle?
0:16 The miners use a hashing algorithm called SHA 256 to produce a hash
1:02 The miners takes the block header from the candidate block
1:43 There's a special number in there called the nonce
2:03 How difficult is it to solve the puzzle?
2:33 Summary: What is the miner doing?

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