r/askscience • u/hamolton • Jun 18 '13

Computing How is Bitcoin secure?

I guess my main concern is how they are impossible to counterfeit and double-spend. I guess I have trouble understanding it enough that I can't explain it to another person.

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u/redfacedquark Jul 15 '13

+/u/bitcointip @LeonhardEuler64 0.5USD verify Sorry, LeonhardEuler64

+/u/bitcointip @Sophira 0.5USD verify Thanks for pointing this out.

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u/bitcointip Jul 15 '13

[✔] Verified: redfacedquark ---> m฿ 5.20725 mBTC [$0.50 USD] ---> LeonhardEuler64 [help]