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 ¡°I don¡¯t care.¡± 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...