If I was being picky, I'd say the lettering used on the "Furou, fushi, fumetsu" (No aging, no death, eternal) proverb on the sword is printed on by machine, not carved into the blade by an artist (Katana, if written on, would be written on by the smith, and therefore hand carved/written, not printed, as this clearly is)...
I'm hoping that's just a new (throwaway) sword....Not the Muramasa.......(The tsuba is tiny, so it looks closer to a wakizashi though...Not a longer katana/tachi type blade..So I reckon we're "safe"..LOL)
But that's just me being a (sword) nerd....