Your approach won&#39;t work-- OP_ADD is limited to 4-byte operands.  Changing that would require a &quot;hard&quot; blockchain split / entire-network-upgrade.<br><br><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
I wish to submit the following draft BIP for discussion and possible<br>
formal BIP review.<br>
<br>
<a href="https://en.bitcoin.it/wiki/BIP_M_of_2_DRAFT" target="_blank">https://en.bitcoin.it/wiki/BIP_M_of_2_DRAFT</a><br>
<br>
It is a proposed alternative to BIP 16 (&quot;/P2SH/&quot;).<br>
<br>
Thank you,<br>
Ben Reeves<br></blockquote><div> </div></div>-- <br>--<br>Gavin Andresen<br><br>