One part number, carried all the way through. Check any stage against its source.
both open at /specimen
root a71f9c40… · check this receipt
captured 2026-08-14
built 2026-08-20
1 marketplace · 2026-08-27
A retail price tells you one thing. The steps above it tell you the business.
We establish what a part sells for at retail, then what a WD most likely sells it to that retailer for, and what a manufacturer most likely sells it to the WD for.
Retail is observed. The tiers above it are derived, labeled derived, and shown with the schedules behind them.
No account, no file, no email. Blanks and duplicates drop out when you upload, so you usually pay less than this.
card authorized on start · unresolved rows not billed
assuming 40 parts an analyst-day
Start with the file you already have.
A column of part numbers is enough. Brand and description help on the hard ones. Your columns come back exactly as you sent them.
Run a single part number free and see the whole six-stage chain for it. The field is at the top of the page, where the chain is — one place to do this, not two.
A finding you cannot check is just an opinion with a price on it.
One line per answer: the stage, the source, the date, observed or derived, and the band.
Download the specimen ledger ↓Every sealed run publishes a hash over the record. Recompute it from your download. It matches or it does not.
sealed 2026-08-27 16:02Z
When we get it wrong we publish the original reading, the corrected one, and the cause. Nothing is quietly overwritten.
ladder tier misread on a superseded jobber schedule — 214 rows reissued, refunded
No language model writes, infers, guesses or fills any field in your record. Every value is read from a named source by a numbered rule with an effective date, which is why an old run reproduces exactly.
Each stage runs under a numbered method with an effective date. Your receipt names the versions used, so an old run stays reproducible.
aces-build v1.4 · 2026-07-15
ladder v2.1 · 2026-07-01
Nothing appears without the catalog, listing or database that produced it and the day we captured it.
TrustNav flags the conflict and keeps both readings rather than silently choosing the convenient one.
TrustNav takes no compensation from manufacturers, catalogs or marketplaces whose data it reviews.
Four jobs, one record behind all of them.
Establish OE and application coverage before publication.
Understand fitment, competition, and economics before buying.
See the channel ladder before committing.
Re-verify what changed since your last release.
Send one part number. It costs nothing. If the record holds up, send the file.