How we verify a sale (and why nothing here says “Verified” yet)

On the day we wrote this, our tracker was watching 6,109 live clothing markdowns, and every single one arrived making the same unaudited claim: you are saving money. A sticker price, a sale price, an implied favor. The entire point of Price & Thread is to treat that claim the way a journalist treats a press release — as the beginning of the work, not the end of it.

Here is what actually happens to one discount, start to finish, using a real one from our catalog.

A claim walks in

Taylor Stitch lists The Slim Jean in Rigid Organic Selvedge at $106.80, against a compare-at price of $178 — a claimed 40% cut. At this point we know exactly one thing for certain: what the store charges today. The $178 is just the retailer's word. Most price-comparison sites would render it as $178 and move on. We render nothing yet.

The evidence checks

Our pipeline interrogates a claim like that against up to five independent sources:

• Cross-store pricing — the same product (matched by style code or GTIN) priced at every other store we track. The strongest check, and the hardest to fake.
• Independent typical-price ranges — what the market actually charges for this product, from aggregated shopping data.
• Discount culture — our own measurement of how deeply this retailer routinely marks down, across its entire sale section. For Taylor Stitch, that snapshot covered 2,617 sale SKUs: the store's median cut is 39.3%, and 90% of its markdowns stay at 50% or less.
• Resale floors — for sneakers, the licensed secondary market puts an independent floor under “retail value.”
• Our own price history — every price we observe is written to an append-only log (12,226 observations and counting). History-based claims unlock only after 60 days of coverage.

The jean's claimed 40% sits inside Taylor Stitch's measured pattern — a store that really does cut around 40% is claiming a 40% cut. One independent source corroborates the claim. Important nuance: if the same store suddenly claimed 75% off, the same snapshot would refuse to corroborate it, because 75% is outside the deepest markdowns this store actually makes. Pattern evidence vouches for claims that fit the pattern, never for outliers.

The tier it earns

Every offer lands on exactly one rung of a three-rung ladder, computed — never hand-assigned:

• ✓ VERIFIED — two or more independent evidence kinds agree the discount is real.
• CORROBORATED — exactly one independent source backs it. Our jean lands here.
• CLAIMED — the retailer's word only. Rendered in amber, scored at half weight, and never shown as a strikethrough.

That last rule is the one we'd go to court over: an unverified former price on this site is physically incapable of rendering as $178. It renders as an amber chip that says “retailer claims $178.” The rendering code refuses to produce anything else — the label isn't a style choice, it's a constructor with rules.

Why nothing says “Verified” yet — and why that's the point

As of July 20, 2026, the ledger reads: 5,420 live offers corroborated, 689 labeled claimed, and zero carrying the full Verified badge. Zero is not a bug. Verified requires two independent kinds of evidence, and our second kinds are still accruing: cross-store checks need the same product live at two-plus tracked stores, history claims need 60 days of our own observations (day one was July 20, 2026), and the typical-range and resale integrations are still being wired in. We could have relaxed the bar and shipped a site covered in green badges. We'd rather the badge mean something the day you first see one.

The 689 “claimed” offers are equally deliberate. Most sit at stores whose sale sections are too small to measure a reliable pattern — our floor is 200 sale SKUs before a culture snapshot counts as evidence — or make claims outside their store's measured behavior. We don't hide those deals; some are probably genuine. We label them as what they are: unaudited.

What this buys you

A ranking you can trust the shape of. Because claimed-only discounts are scored at half weight, a fantasy “70% OFF” can't outrank a corroborated 40%. Because every card stamps when its price was last checked, stale deals sink on their own. And because the same math runs on every store — including the ones that pay us — there is no editorial thumb on the scale to wonder about.

The compact version of all this, with every phrase's exact evidence bar, lives at how we verify. For the wider picture of what retail discounting looks like measured at scale, read the discount-menu study.