PSA Card Guarantee

[Peter_Spaeth]

Originally Posted by steve B

Is there a good explanation of those rules that a non lawyer can easily understand?

To me, I'm thinking you'd have provenance on an earlier image. And for some, fairly clear identifiers.
Like
This card with PSA serial number X was shown in this image when it was offered on x date by this particular seller.
Theres a unique wood fiber inclusion visible just here further identifying the card.
That image is X dpi, making that fiber x distance from the nearest edge


This image is a new image created on x date, and at the same dpi as the original. Note the unique fiber inclusion is now Y distance from the nearest edge.

This is the actual card, as shown.

That could be done for all edges and overall size.

Would it not be allowed?

I assume you would have an expert witness try to do all this. Who would that be? If so, here are the applicable standards at least in a federal court:

Rule 702. Testimony by Expert Witnesses

A witness who is qualified as an expert by knowledge, skill, experience, training, or education may testify in the form of an opinion or otherwise if:

(a) the expert’s scientific, technical, or other specialized knowledge will help the trier of fact to understand the evidence or to determine a fact in issue;

(b) the testimony is based on sufficient facts or data;

(c) the testimony is the product of reliable principles and methods; and

(d) the expert has reliably applied the principles and methods to the facts of the case.

One issue I see right away is (c), because comparison with prior photos is not how anyone in the industry authenticates cards. So you would have an initial substantial hurdle of trying to persuade a judge that this new method was reliable.