Adds complete validated metadata rows for the three previously unindexed Standard files. Local inbox SHA-256 values match the Hub LFS identities exactly; container and stream metadata were extracted from those matching bytes. Canonical coverage is now 338 rows for 338 direct Standard MP4s, with unique IDs and hashes. Adds a reproducible three-row additions source and updates counts and validation. No video payload is uploaded, modified, moved, or deleted.
Metadata-only release candidate based on 339e6149de130cbe2d001f7a0e5247872bc788ec. Adds stable record IDs, normalized schema, validation and repair tooling, clearer coverage and limitations, rights and privacy notes, and a documented Viewer migration plan. No video files are modified.
Replaces the incomplete six-row root metadata.csv with a verified 304-row index matching every canonical root MP4. Preserves the former CSV in the dated provenance release, exposes the consolidated provenance map, and documents root files as canonical with Series_9x12 retained as a legacy source collection. No videos are changed.
data: add 2025-07-16 9x12 timelapse and update metadata
