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SATOSHI - 0.8
"When the next proof-of-work is found, whichever previous block that node was working on, that branch becomes longer and the tie is broken." Satoshi answered when asked about, what happens when two #Bitcoin Blocks are found at the same time?

Then you have a chain split until one chain becomes longer (= more proof of work) again.

That’s why you should wait for 6 confirmations.

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yup, Satoshi even says as much here (wait an hour before shipping goods)

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Oh, the video didn't load before I replied. I thought it was a question from you.

edit: Mhh, seems like uploaded videos still or again don’t load at all in iOS