Okay, I am attempting to wrap my head around this and here is where I am running into issues. Trading cards and other collectible objects tend to get some of their appeal from what they are. Baseball cards had the stats for the players, MtG had a game attached to it, vases are pretty and hold flowers well, old toys are neat, coins are pretty and have historic value, etc. What you are producing only makes people want it because of its rarity which is honestly where a lot of collectibles get the vast majority of their value. The thing is that there is going to be no reason to collect it other than bragging rights and potential trading. Basically its only value is as a currency. Without some sort of hook to get people interested in it for reasons other than trading you are effectively just making a currency.
That was kind of the idea. I wasn't shooting for a currency so much as giving value to the cards. For example, were I to create a website of "trading cards" people could infinitely copy them because of the nature of them. However, if this could somehow be attached to "proof of ownership" then while the "content" of the card could be infinitely copied the ownership would not.
I'm sure my thoughts are clear as mud, but I'm exploring to see if the idea would even be feasible or worthwhile to pursue because it'd be a serious learning curve for me to do something like this.