Subject: [bitcoin-dev] BIP draft: OP_CHECKBLOCKATHEIGHT

From: Luke Dashjr <[email-masked]>
Date: Fri, 23 Sep 2016 09:57:01 +0000

This BIP describes a new opcode (OP_CHECKBLOCKATHEIGHT) for the Bitcoin 
scripting system to address reissuing bitcoin transactions when the coins they 
spend have been conflicted/double-spent.

https://github.com/luke-jr/bips/blob/bip-cbah/bip-cbah.mediawiki

Does this seem like a good idea/approach?

Luke