# Lamport signatures and other CAT tricks

**URL:** <https://delvingbitcoin.org/t/lamport-signatures-and-other-cat-tricks/236>\
**Category:** Protocol Design\
**Created:** [December 2, 2023, 11:15pm UTC](https://delvingbitcoin.org/t/lamport-signatures-and-other-cat-tricks/236 "2023-12-02T23:15:49Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![moonsettler](https://delvingbitcoin.org/user_avatar/delvingbitcoin.org/moonsettler/32/38_2.png) [@moonsettler](https://delvingbitcoin.org/u/moonsettler)\
**Post date:** [December 3, 2023, 10:33am UTC](https://delvingbitcoin.org/t/lamport-signatures-and-other-cat-tricks/236/3 "2023-12-03T10:33:10Z")

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Thank you for the feedback @ajtowns!

What do you think about soft-fork restricting G from being used as internal pubkey for taproot (it’s an obvious anyone can spend), to have a quantum resistant script-only P2TR output? Could also be a specific NUMS point used by convention in the meantime, with the promise that it gets protected as needed, if that makes more sense?

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