This directory merges the 127-case annotation set from 2026-07-27 with the eight-case Chinese Prompt annotation set from 2026-08-03. The original 127 cases retain IDs cmb_0001 through cmb_0127; the eight appended cases are renumbered cmb_0128 through cmb_0135.

Layout

videos/cmb_0001.mp4 ... videos/cmb_0135.mp4: self-contained benchmark videos.
metadata/benchmark_cases.jsonl: canonical line-delimited metadata.
metadata/benchmark_cases.json: the same 135 records as a JSON array.
audit/case_provenance.jsonl: mapping from merged IDs to source cases.
audit/manual_corrections.json: manual prompt and target corrections.
audit/prompt_revisions.jsonl and audit/prompt_revisions.md: reviewed prompt revisions.

Canonical metadata fields

Every case contains:

case_id
video_file
prompt
domain_category
memory_level
object_subtype
background_motion
target_label
target_aliases
references
discard
prior_subset

Optional fields include time_edit (with rev_frame and del_frame) and youtube_url. Each reference contains a normalized ref_id, exact frame, and bbox_xyxy.

The seven time-edited videos are already rendered outputs. The Chinese Prompts in cases cmb_0128 through cmb_0135 are stored as UTF-8 and preserved exactly as saved in the annotation station.

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