It will follow it but it doesn't "jump" to the magnet right? If that is the case what you have is a cent that has been nickel plated. And it works better if you start your own thread rather than tacking your question onto one that is five years old.
I have 2 of these coins your talking about. I got them from the bank a couple years back. I took them to a pawn shop and the guy told me they were made of platinum. I think he's full of it. I don't see why they'd be silver either. I can't find anything about them on the internet either. I found about steel pennies so I just thought that's what they were. But I can only find about ones from 1943 not the 2003 I and you have. I'll take some pictures when I get home. I'm really curious to find out what these are.
@James26 Even without a picture, it's nearly a certainty that the coins have been plated. Pretty simple science experiment. https://www.sciencecompany.com/Turn-Copper-Pennies-Into-Silver-and-Gold-Pennies.aspx Just for accuracy, There is a remote possibility that they could be struck on a dime planchet. Look at the edge to see if you see the copper "sandwich" layer, like a regular clad dime. Don't want to get your hopes up. Finding even one of these is like hitting the lottery (incredibly long odds, not value)