1. 11 Cryptographic Methods That Marked History: From the Caesar Cipher to Enigma Code and Beyond (n. d.) https://interestingengineering.com/innovation/11-cryptographic-methods-that-marked-history-from-the-caesar-cipher-to-enigma-code-and-beyond. Zugegriffen: 15. Jan 2023
2. A Brief History of Ledgers. Before Starting My Investigation Into… | by LLFOURN | Unraveling the Ouroboros | Medium (n. d.) https://medium.com/unraveling-the-ouroboros/a-brief-history-of-ledgers-b6ab84a7ff41. Zugegriffen: 15. Jan 2023
3. A Brief History of Money (2019) NAKAMOTO, December 30, 2019. https://nakamoto.com/a-brief-history-of-money/
4. A Cypherpunk’s Manifesto (n. d.) https://www.activism.net/cypherpunk/manifesto.html. Zugegriffen: 1. Febr 2023
5. A (Short) Guide to Blockchain Consensus Protocols − CoinDesk (n. d.) https://www.coindesk.com/markets/2017/03/04/a-short-guide-to-blockchain-consensus-protocols/. Zugegriffen: 15. Jan 2023