living reportas of 2026-10-01
The Integrity Ledger
sold listings screened0
bulk-lot floods collapsed0
rows flagged disputed0provider or curve disagreement
verified grade rows served0
What our data pipeline caught, missed, and fixed. The pipeline grades itself here, in public, once a month.
The audit record
6 audits| Date | Sample | Wrong-card comps surviving | Correct comps discarded |
|---|---|---|---|
| 2026-08-03 | 50 random slabs (first audit) | 4.3% | 40.7% |
| 2026-08-03 | 50 random (post-fix) | 0.88% | 7% |
| 2026-08-04 | 50 random (third) | 0.3% | 1.83% |
| 2026-08-04 | 50 adversarial | 2.3% | — |
| 2026-08-04 | 50 adversarial (post-fix) | 2% | 0.4% |
| 2026-08-04 | 50 adversarial, exact-membership | 1.96% | 13% |
Scroll the table sideways for every column
Audit rows are measured by independent adversarial test runs against production and appended verbatim — the trajectory includes our regressions, because a ledger that omits them isn't one.