While the objectification is bad, I think the issue of determining truth from lies should be solvable: public key cryptography seems simple enough. Have every

While the objectification is bad, I think the issue of determining truth from lies should be solvable: public key cryptography seems simple enough. Have every public figure have their own key pair, and each official production have its own key pair. Then publish a signed hash or similar for each production the figure chooses to appear in. Any production without such a signature or with one that can't be verified is probably fake. Would be a big shift in process, and would only happen if this sort of thing becomes a serious problem, but once it did such a scheme would stop it in its tracks.