A quantum resistance script only using op_ctv/op_txhash and no new signatures

The discussion centers around a proposed construction to enhance the security and functionality of Segwit by introducing a new witness version. This new version aims to eliminate key-path spending completely and focus solely on script evaluation. The primary objective is to render signature forgery moot by doing away with the fallback path that uses NUMS/keys. Implementing this improvement could be achieved through a soft fork, which would allow only nodes that have been upgraded to enforce the new rules associated with this witness version.

Furthermore, an alternative suggestion involves using Congestion Controlled Transactions (CCTV) in place of traditional transaction hashes (TXHASH) to address certain fee-related issues. CCTV has the potential to manage value flow more effectively. It allows for the embedding and extraction of CTV reveal spend at the time of spending rather than at the time of creation. Additionally, it offers the flexibility needed to enforce escape spends, thereby providing a solution that ensures value flexibility. This approach suggests a shift towards a more secure and efficient framework for transaction management and security within the blockchain network.