Satoshi White Paper #4. Proof of Work explained.
Once the work is done, the block cannot be changed without redoing the work, which makes the system secure.
Satoshi White Paper #2. Transactions explained.
One solution is to have a trusted central authority, called a mint, that checks every transaction to make sure no one is double-spending. But this means every transaction has to…
Bitcoin: A Peer-to-Peer Electronic Cash System
We propose a solution to the double-spending problem using a peer-to-peer network.