[Bitcoin-development] Payment Protocol Proposal: Invoices/Payments/Receipts

Mike Hearn mike at plan99.net
Tue Nov 27 18:16:53 UTC 2012

> That hash would then be reported via some secure channel outside of bitcoin's
> domain.

OK, I see. I guess that could be a reasonable fallback for the case
where you have a secure channel.

> I don't understand what the relevance of multi-factor is to invoices?

Yes, exactly. It's about paying who you think you're paying (when you
confirm on a second uncompromised device).

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