<ul><li>The Great Consensus Cleanup proposal aims to make 64 byte transactions consensus invalid.</li><li>These transactions have been non-standard for years and show no useful purpose.</li><li>It is possible to malleate any 64 byte transaction into a different size, ensuring no confiscation risk.</li><li>However, it is unclear if any 64 byte transaction can be malleated to preserve a secure public key destination.</li></ul>

Can all consensus valid 64 byte transactions be (third party) malleated to change their size?

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