Bitcoin: A Peer-to-Peer Electronic Cash System Satoshi Nakamoto satoshin@gmx.com www.bitcoin.org Abstract 1. Introduction 2. Transactions 3. Timestamp Server 4. Proof-of-Work 5. Network 6. Incentive 7. Reclaiming Disk Space 8. Simplified Payment Verification 9. Combining and Splitting Value 10. Privacy 11. Calculations 12. Conclusion