A next generation smart contract
When Satoshi Nakamoto first set the Bitcoin blockchain into motion in January 2009, he was simultaneously introducing two radical and untested concepts.
File: Ethereum_white_paper-a_next_generation_smart_contract_and_decentralized_application_platform-vitalik-buterin.pdf. The original library file is served from the Internet Archive copy of blockchainlab.com/pdf so the path stays reachable.