diff options
Diffstat (limited to 'bip-tapscript.mediawiki')
| -rw-r--r-- | bip-tapscript.mediawiki | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/bip-tapscript.mediawiki b/bip-tapscript.mediawiki index 759d0d8..120a617 100644 --- a/bip-tapscript.mediawiki +++ b/bip-tapscript.mediawiki @@ -51,7 +51,7 @@ The rules below only apply when validating a transaction input for which all of * The transaction input is a '''segregated witness spend''' (i.e., the scriptPubKey contains a witness program as defined in [https://github.com/bitcoin/bips/blob/master/bip-0141.mediawiki BIP141]). * It is a '''taproot spend''' as defined in bip-taproot (i.e., the witness version is 1, the witness program is 32 bytes, and it is not P2SH wrapped). * It is a '''script path spend''' as defined in bip-taproot (i.e., after removing the optional annex from the witness stack, two or more stack elements remain). -* The leaf version is ''0xc0'' (i.e. the first byte of the last witness element after removing the optional annex is ''0xc0'' or ''0xc1'')<ref>'''How is the ''0xc0'' constant chosen?''' Following the guidelines in bip-taproot, by choosing a value having the two top bits set, tapscript spends are identifiable even without access to the UTXO being spent.</ref>, marking it as a '''tapscript spend'''. +* The leaf version is 0 (i.e. the first byte of the last witness element after removing the optional annex is ''0xc0'' or ''0xc1''), marking it as a '''tapscript spend'''. Validation of such inputs must be equivalent to performing the following steps in the specified order. # If the input is invalid due to BIP141 or bip-taproot, fail. |