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From: Luke Dashjr <luke@dashjr.org>
To: Mark Friedenbach <mark@friedenbach.org>
Date: Sun, 1 Oct 2017 20:43:18 +0000
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Cc: Bitcoin Protocol Discussion <bitcoin-dev@lists.linuxfoundation.org>
Subject: Re: [bitcoin-dev] Version 1 witness programs (first draft)
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On Sunday 01 October 2017 8:39:11 PM Mark Friedenbach wrote:
> What about an optional commitment to witness size in bytes? The value zero
> meaning =A1=B0I don=A1=AFt care.=A1=B1 I would argue that it should be a =
maximum however,
> and therefor serialized as part of the witness. The serialization of this
> would be very compact (1 plus the difference between actual and maximum,
> with zero meaning not used.)

Could just do SIGHASH_WITNESS_SIZE in addition to SIGHASH_WITNESS_DEPTH...