> On 2 Jun 2018, at 2:15 AM, Russell O'Connor <rocon...@blockstream.io> wrote:
> I prefer a different opcode for CHECKSIGFROMSTACK because I dislike opcodes 
> that pop a non-static number of elements off the stack.  Popping a dynamic 
> number of stack elements makes it more difficult to validate that a Script 
> pubkey doesn't allow any funny business.

Agreed. This is one of the reasons I think we should remove CHECKMULTISIG in 
the new script system
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