What the atlas adds
Original topic guides and ordered learning routes connect existing teaching across providers. Each record names its selection basis and the material used to check its description. A place in the catalogue is not a finding that every scientific claim in a video is correct.
This public edition retains the institution-sourced catalogue, guides and paths. Temporary YouTube API checks from the local preview are not included. An unknown access label means that this edition has no retained confirmation; it does not mean a video is unavailable.
Actual coverage
This is a local working release checked on 2026-11-09. It is not a comprehensive collection. English-language teaching is the initial focus.
| canonical videos | 4,645 |
|---|---|
| qualified accessible videos | 1,608 |
| alternate uploads | 0 |
| courses | 118 |
| source providers | 28 |
| video providers | 4 |
| subject families | 14 |
| taxonomy families | 14 |
| completed guides | 51 |
| completed paths | 20 |
| checked core | 88 |
| supporting resources | 127 |
Release targets
The full target is 3,000 qualified accessible videos, 50 substantial guides, 20 paths and 200 individually checked core annotations across at least 12 fields. We seek 20 verified video providers.
- qualifiedAccessibleVideos: 1608 of 3000; 1392 remaining.
- checkedCore: 88 of 200; 112 remaining.
- videoProviders: 4 of 20; 16 remaining.
Evidence of access
A source page alone is insufficient. Records distinguish an official API status check, a bounded check of an authorised media endpoint and observed browser playback. Metadata and endpoint checks are useful access evidence; they do not mean every video has been watched, or promise access in every location.
What a source check means
Agent checks compare descriptions and selections with retrieved publisher text, selected transcript passages or teaching material. Their dates and methods are visible. Scientific assessment defaults to “Not assessed”. Older teaching is dated and is not automatically current clinical guidance.
Community evidence
HackerTube is an optional discovery source. Only its rec and strong_rec labels count positively, with a maximum of 20 retained mentions per video. Criticism and neutral references do not add recommendations. Creator self-promotion is not an independent recommendation. The search uses only explicitly checked non-creator recommendations as a bounded signal.
Use and impact
Build counts and retrieval checks do not show learning impact. No learner study or human peer review has been conducted for this release. A voluntary pilot protocol is prepared; recruitment and genuine feedback remain pending.