http://yw7nc56v4nsudvwewhmhhwltxpncedfuc43qbubj4nmwhdhwtiu4o6yd.onion/t/crypto-anarchy-and-virtual-communities-1994/92
Mention should be made of the role of David Chaum in defining the key concepts here. In several seminal papers (for example,[4][5]), Chaum introduced the ideas of using public key cryptography methods for anonymous, untraceable electronic mail, for digital money systems in which spender identity is not revealed, and in schemes related to these.