A Pokémon slab certification marked "not found" may result from a mistyped number or a temporarily blocked lookup, but it can also signal fraud. It does not prove the slab is fake, yet you should not buy it until the grading company resolves the problem. A slab is a graded card sealed in a labeled plastic holder with a unique certification number. That number links the holder to the grader's database record, but the lookup is only one part of authentication.
Table of Contents
- Rule out a lookup problem first
- Is it a database error or a mismatch?
- Why a valid certification number is not enough
- When should you stop the purchase?
Rule out a lookup problem first
Enter the certification number again on the grading company's official website. Check every digit carefully and confirm that you are using the company named on the slab. CGC specifically tells users to check that the number was entered correctly when a certification cannot be found.
Its verification page may also become temporarily unavailable after excessive searches, so an access error may reflect throttling rather than the card's status, according to CGC Cards' certification lookup guidance. If the page appears blocked or unavailable, stop making repeated attempts and try again later. Save a screenshot of the result, the exact certification number, and the time of the search in case you need to contact the grader.
Is it a database error or a mismatch?
Do not automatically call every failed search a "database delay." The available evidence documents temporary lookup restrictions and clerical corrections, but it does not establish a standard waiting period for missing certifications. PSA acknowledges that data-entry errors can cause its database information to differ from a slab's label and directs holders to request label corrections.
cgc also says it corrects known clerical or mechanical label errors in its records and displays the corrected grade or description through certification verification. Treat the possible results differently:.
- Not found: The database does not confirm the certification number.
- Found and matching: The number corresponds to the displayed card information, but that alone does not authenticate the holder.
- Found but different: The card, grade, or description conflicts with the slab and requires confirmation from the grader.
- Lookup unavailable: The result is inconclusive until the official service works again.
Why a valid certification number is not enough
A successful lookup confirms that information exists for that number. It does not prove that the physical slab in front of you is the genuine holder associated with the record. PSA warns that counterfeiters can copy genuine certification numbers from public sources and print them on fake grading inserts.
Its Cert Verification page therefore cautions that a matching lookup does not eliminate counterfeit risk. Compare the lookup record with the slab's certification number, card identity, grade, and description. Request clear photographs of the front, back, label, and holder edges, and look for damage, opening, alteration, or other signs of tampering.
When should you stop the purchase?
A missing or conflicting certification should pause the transaction. Federal prosecutors documented a scheme involving sports and Pokémon cards in which genuine PSA labels had grades and serial numbers removed before fake high grades and new serial numbers were printed; a jury convicted Anthony Curcio in January 2026, according to the U.S.
Department of Justice. Before paying: Do not assume a grading guarantee will reimburse every affected buyer. CGC says its guarantee excludes counterfeit cards or holders and cards in holders that are damaged, unsealed, altered, or tampered with, as detailed in the CGC Guarantee.
- Wait until the official lookup works and record the result.
- Confirm that every database detail matches the slab.
- Send the grader the certification number and clear photographs if the problem continues.
- Decline the purchase if the seller refuses time or evidence needed for verification.
- If you already bought the card, preserve the listing, messages, payment record, packaging, and photographs.
