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Date: Fri, 24 Apr 2015 22:00:46 +0200
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From: Justus Ranvier <justus.ranvier@monetas.net>
To: Bitcoin Dev <bitcoin-development@lists.sourceforge.net>
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Subject: [Bitcoin-development] Reusable payment codes
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--047d7b4145d42148e805147dda99
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
https://github.com/justusranvier/rfc/blob/payment_code/bips/bip-pc01.mediawiki
This link contains an RFC for a new type of Bitcoin address called a
"payment code"
Payment codes are SPV-friendly alternatives to DarkWallet-style stealth
addresses which provide useful features such as positively identifying
senders to recipients and automatically providing for transaction refunds.
Payment codes can be publicly advertised and associated with a real-life
identity without causing a loss of financial privacy.
Compared to stealth addresses, payment codes require less blockchain data
storage.
Payment codes require 65 bytes of OP_RETURN data per sender-recipient pair,
while stealth addresses require 40 bytes per transaction.
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<p style="margin:0px"><br></p>
<p style="margin:0px"><a href="https://github.com/justusranvier/rfc/blob/payment_code/bips/bip-pc01.mediawiki">https://github.com/justusranvier/rfc/blob/payment_code/bips/bip-pc01.mediawiki</a></p>
<p style="margin:0px"><br></p>
<p style="margin:0px">This link contains an RFC for a new type of Bitcoin address called a "payment code"</p>
<p style="margin:0px"><br></p>
<p style="margin:0px">Payment codes are SPV-friendly alternatives to DarkWallet-style stealth addresses which provide useful features such as positively identifying senders to recipients and automatically providing for transaction refunds.</p>
<p style="margin:0px"><br></p>
<p style="margin:0px">Payment codes can be publicly advertised and associated with a real-life identity without causing a loss of financial privacy.</p>
<p style="margin:0px"><br></p>
<p style="margin:0px">Compared to stealth addresses, payment codes require less blockchain data storage.</p>
<p style="margin:0px"><br></p>
<p style="margin:0px">Payment codes require 65 bytes of OP_RETURN data per sender-recipient pair, while stealth addresses require 40 bytes per transaction.</p>
<p style="margin:0px"><br></p>
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