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

From: Gavin Andresen <[email-masked]>
Date: Tue, 27 Nov 2012 16:39:55 -0500

Spec updated: https://gist.github.com/4120476

Notable changes are:

+ Removed SignedReceipt

+ Replaced Invoice.x509chain with a "pki_type" and "pki_data" to make
using other identity systems cleaner.

+ Added a "Why not an existing electronic invoice standard?" section
to the design notes

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Gavin Andresen