Reading from top to bottom, the passive voice "they become BIP's author or deputy" left me wondering
how it would concretely work in practice. Link to the transferring ownership section for
clarification.
Shareholder refers to an individual or a legal entity owning a share of a company's share capital.
Since the Bitcoin system is not a company, but different actors across the industry have a stake in
its operation, i think the word "stakeholder" better conveys the intended meaning of the original
author here.
Author confused bip-0341, which defines the Taproot construction, with bip-0342, which defines the
Tapscript scripting system. Unknown key types are defined in the latter, as part of the semantics of
the CHECKSIG{VERIFY} and CHECKSIGADD opcodes.
Since the sigOpCount calculation was copied from P2SH, and P2SH
restricts the use of CHECKMULTISIG with pushed integers the reference
implementation would not take into account the number of public keys for
17 to 20 keys (not representable with an OP_N) even for P2WSH.
Therefore it fallbacks to accounting for 20 sigops in this case, which
this sentence seemed to mismatch with.
Btcd and Libbitcoin use the same calculation as in Bitcoin Core.
Signed-off-by: Antoine Poinsot <darosior@protonmail.com>
Antoine Poinsot