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~ÇâsÈç\¤mEÊw`L1) Yes, but ASIC boost which is used to implant CTOR is patented.
2) Any decoupling of the txid from the tx is Segwit. Mal.fix === Seg wit
https://whatsonchain.com/tx/221c1eb68410494313397a49de73f4ed4cb2ee5974d596188411d7dae33b3012