🤔 1440000bytes reviewed a pull request: "OP_CHECKTEMPLATEVERIFY, OP_CHECKSIGFROMSTACK(VERIFY), OP_INTERNALKEY validation (LNHANCE)"
(https://github.com/bitcoin/bitcoin/pull/29198#pullrequestreview-1807876376)
Concept ACK
CHECKSIGFROMSTACK [complements](https://github.com/bitcoin/bips/blob/8697678dd8cbe6f5a5aa1a291f682273240ab541/bip-csfs.mediawiki#motivation) CHECKTEMPLATEVERIFY and helps in ticking more boxes. INTERNALKEY saves 32 bytes in [some cases](https://github.com/bitcoin/bips/blob/4d448ccd02262b91c5d8c8bf91fb0fd4bc7dd5b1/bip-internalkey.mediawiki#motivation).
(https://github.com/bitcoin/bitcoin/pull/29198#pullrequestreview-1807876376)
Concept ACK
CHECKSIGFROMSTACK [complements](https://github.com/bitcoin/bips/blob/8697678dd8cbe6f5a5aa1a291f682273240ab541/bip-csfs.mediawiki#motivation) CHECKTEMPLATEVERIFY and helps in ticking more boxes. INTERNALKEY saves 32 bytes in [some cases](https://github.com/bitcoin/bips/blob/4d448ccd02262b91c5d8c8bf91fb0fd4bc7dd5b1/bip-internalkey.mediawiki#motivation).