Email Sources:
James A. Donald: https://www.metzdowd.com/pipermail/cryptography/2008-November/014814.html
Satoshi: https://www.metzdowd.com/pipermail/cryptography/2008-November/014815.html
John Levine: https://www.metzdowd.com/pipermail/cryptography/2008-November/014817.html
Satoshi: https://www.metzdowd.com/pipermail/cryptography/2008-November/014818.html