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A comment on Introducing the Shift Card: Use Bitcoin where Visa is accepted. Parent comment

Re:Introducing the Shift Card: Use Bitcoin where Visa is acc... by r-marques on Friday November 20, 2015 @10:30AM (#10601633)
So with coinbase you have no control over your private key? You can only spend your btc through coinbase?
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Re:Introducing the Shift Card: Use Bitcoin where Visa is acc... by r-marques on Friday November 20, 2015 @12:59PM (#10602664)
If this actually relies on 0-conf transactions and assuming that you have control over your private key in coinbase, I wonder how replace-by-fee can impact this.
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