Double-Spend Attack

Double-spend Attack is a special badge that belongs into the Earth Badge tier. It's description is "Support Khan Academy with a Bit-coin donation, TWICE!!!"

Contents
[hide]#Notable Users with this Badge:
 * 1) Extra Information:
 * 2) Learn More about Bitcoins here:
 * 3) Learn how you can donate bitcoins to Khan Academy here:
 * 4) Related Badges:DSA.png

Notable Users with this Badge

 * Desmond Brand.

Learn how you can donate bitcoins to Khan Academy here.Edit
If you don't know what a bitcoin is or want to learn more, head on over to the Khan Academy video tutorials and/or watch the simple one below!(but watching the tutorials are better because they give 750 energy points too!_ Older badge imageAdded by 4thdimensionpro

Related Badges

 * I am Satoshi Nakamoto..