All scientists should sign on top of their papers that what they write is truthful. See also https://datacolada.org/98
That’s so fundamentally core to the idea of authoring a paper that it would be fundamentally useless. Anyone knowingly publishing fraudulent data will not be deterred by a signature. It’s already career ending if discovered.
I had read GP's link prior to this. It's about a researcher claiming that signing a truthfulness statement beforehand reduced lying, but that very research was tampered with.