Documents the six-record result and failed Jobs persistence attempts; adds download-back validation of schema, Hub LFS and local hashes, dHash measurements, documentary fields, and proxy media properties.
Retry interrupted Hub transfers without losing checkpoints
Changes Jobs persistence from an all-at-once final upload to one record checkpoint at a time, followed by run-level metadata only after complete success.
Adds a pinned static FFmpeg and FFprobe fallback for UV Jobs while continuing to record the complete media-tool build in each derivation identity and manifest.
Establish derived-access contract and bounded validation pilot
