Check the cert before you pay.

Counted from our own sweep index on 2026-08-04 and true as of that date, not live. They describe coverage, not how right a screen is — and a number under two sellers is an observation to ask about, not a finding: SlabEye has never confirmed one label copied onto another holder.

Did our last sweep see this exact number on a live graded-card listing somewhere else? For PSA it also reads PSA's own record live, and shows it beside the sighting graph as PSA returns it.

01. The number is checked against that grader's real cert-number format first, so a typo stops here instead of returning a verdict. 02. For PSA it also reads PSA's own record, live. For the other nine graders there is no record SlabEye can read, and the result says so rather than filling the slot. 03. The grader's own page stays one thumb away, so the check ends on their site rather than ours.

Each is a disagreement between things that should agree. Sightings are only ever as fresh as our last sweep and are seller-entered and unverified; SlabEye describes listings and records, never people, and never states what is sealed inside a holder. 01. A slab is a single physical item, so even one live sighting is worth a question. Commonest reading: it is the seller's own listing. 02. Ordinary resale looks exactly like this, and so does a number reused from an old sold listing. Context to ask about, never a stop. 03. Usually a typo or the wrong grader selected — check both, and don't rely on the number until it resolves. 04. That is the one discrepancy SlabEye has corrected in the wild — a misdescribed listing, fixed by the seller the same day, not a forgery caught. 05. It covers record and marketplace signals inside SlabEye's coverage — not a grade, and not an inspection. Two copies of the same print look identical on a screen, so a clear result is the absence of observed conflicts, nothing more.

Reports from dealers and collectors are how a shared record of flagged numbers gets built. SlabEye records the observation, never a claim about a person. No screen shows a report-based verdict today: there is no report corpus yet, so that state exists in the design and not in the live tool.

No, and it cannot. SlabEye is decision-support screening: it reports discrepancies it observed between a listing, the grader's record and the live marketplace, inside its coverage. A matching scan doesn't confirm the specific card sealed inside the holder. Confirm the record on the grader's own site.

It opens the interactive demo with your number and grader. This page runs no screen of its own: the demo screens against a labelled sample set, not the live sweep index, and a number that isn't one of its worked examples comes back saying exactly that.

Ten: PSA, CGC, BGS, SGC, TAG, ACE, PGS, AGS, DSG and CGA — each with its own number format and its own official record page, which SlabEye links you straight to. Exactly one — PSA — publishes a record SlabEye can read, through PSA's API trial. For the other nine the check is the sighting graph plus the number's format, and the result prints a “not readable for this grader” row rather than filling the slot.

The exact number appeared on one or more active listings in our last sweep — a single sighting is enough to raise it, because a graded slab is one physical item and the slab in your hand is not a listing. It is a prompt to confirm which copy the grader sealed — not an accusation, and not a claim about any seller.

Counted read-only from our own sweep index on 2026-08-04: cert numbers observed on graded-card listings; how many of those are on live listings under more than one seller account; and the graders whose number formats and record pages SlabEye knows. The SQL for each is in this page's source.

Marketplace signals come from a sweep of graded-card listings on eBay US, UK, Germany and Australia, refreshed daily; sightings are seller-entered and unverified until a collision review runs. PSA's record fields are read live from PSA's API and stored nowhere. Population, sub-grades and a reference image are designed slots that no record SlabEye reads fills today, so the result says the field is not available rather than guessing.

No. SlabEye is an independent tool, not affiliated with or endorsed by any grading company. It points you to each grader's own record so the authoritative source is always one tap away.