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<p style="margin:0px">-----BEGIN PGP SIGNED MESSAGE-----</p>
<p style="margin:0px">Hash: SHA1</p>
<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 &quot;payment code&quot;</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>
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<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>
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<p style="margin:0px">-----BEGIN PGP SIGNATURE-----</p>
<p style="margin:0px">Version: GnuPG v1</p>
<p style="margin:0px"><br></p>
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<p style="margin:0px">-----END PGP SIGNATURE-----</p></div>