Do you mean the specific process you use to put a hologram sticker on top of the secret number you want to hide?  Or just the abstract idea itself, of covering a number with a hologram sticker?

Regardless of the merits, what do you propose it will cost me as Casascius, a maker of physical bitcoins, to license from you the technology you say is yours?  That is, in advance of any USPTO determination as to whether your application (or its parts) are granted/rejected?  Will you license it to me for free?