# Transformation Lineage

Release: `1.0.0`

## Restricted release

The controlled commercial package contains the 71 source MP4 files and buyer delivery records. Restricted media is not included in the public evidence pack.

## Public catalog

1. Technical properties were measured from the restricted MP4 files.
2. Source identifiers and original filenames were replaced with release-local asset IDs.
3. Participant identifiers, internal source keys, storage URLs, and private delivery fields were excluded.
4. The resulting catalog exposes only `asset_id`, `task_name`, `duration_seconds`, `width`, `height`, and `fps`.

## Public previews

1. Twenty-one candidates across 11 task families were visually reviewed.
2. Six excerpts were selected for public evidence.
3. Each excerpt was trimmed to approximately 10 seconds.
4. Audio was removed.
5. Identifying source metadata was stripped.
6. Video was transcoded to H.264/YUV420p with fast start.
7. Files were assigned sanitized names and paired with poster images and manifest records.

## Versioned evidence pack

The catalog metrics, public preview records, documentation, validation result, and artifact checksums are assembled under release `1.0.0`. Updates require a new release note and regenerated integrity records.