[bitcoin-dev] Taproot proposal

Johnson Lau jl2012 at xbt.hk
Thu May 9 16:56:57 UTC 2019



> 
>> 
>> Some way to sign an additional script (not committed to by the witness
>> program) seems like it could be a trivial addition.
> 
> It seems to me the annex can be used for this, by having it contain both the script and the signature somehow concatenated.

This is not possible since the whole annex is signed. It is possible if the signed “script” does not require further input, like per-input lock-time, relative lock-time, check block hash


> 
> Regards,
> ZmnSCPxj
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