2020 P shield cent possible ddo 0

[Mrph12]

Could this be a ddo on date?

[Kirt]

As with the nickel, this looks like machine doubling. Here's a good reference for telling them apart: https://www.ngccoin.com/news/article/5688/Double-Dies-vs-Machine-Doubling/

It's also important to note that many numismatists believe that modern minting methods in the US means that doubled dies don't occur anymore and haven't for a while (1990s something?). That doesn't mean doubling doesn't occur, just that it is much more likely to be minor and without value.