Freshness coverage, by day
The share of active records verified within the last 30 days, recorded once per source per day by the freshness sweep. This is the project’s first internal KPI, published unedited.
What this counts
On each day, every source the sweep reached reports how many of its records are active and how many of those were last verified more than 30 days ago. Coverage is the first minus the second, over the first, summed across sources rather than averaged — a mean of per-source rates would weight a source holding nine records the same as one holding nine hundred, and this is a figure about the catalogue.
The series
| Day | Active | Verified ≤30d | Coverage | Sources |
|---|---|---|---|---|
| 2026-09-06 | 1,160 | 1,160 | 100% | 2 |
| 2026-09-05 | 1,161 | 1,161 | 100% | 2 |
| 2026-09-04 | 1,162 | 1,162 | 100% | 2 |
| 2026-09-03 | 897 | 897 | 100% | 2 |
| 2026-09-02 | 709 | 709 | 100% | 2 |
| 2026-09-01 | 352 | 352 | 100% | 2 |
| 2026-08-31 | 0 | 0 | — | 1 |
A day on which fewer sources reported than usual is a real observation of the sources that did report. It is shown with its source count rather than adjusted, because adjusting it would mean inventing the readings we do not have.