piperx-sortletter-0911-73ep-raw

70 MINT letter sorting episodes recorded with EvoMind on September 10–11, 2026 (UTC+8), with leading both-arm-static frames trimmed. The original repository name is retained.

LeRobot v3.0; bi_piperx_follower; 30 FPS; 61,236 frames; 2,041.2 seconds. Three original 640x480 RGB camera views: left_wrist, right_wrist, right_environment_1.

Cleaning history

Original zero-based episodes 22, 38, and 67 were removed as user-confirmed accidental recordings. The retained episodes were renumbered 0–69 in original chronological order.

The repository Trim workflow was then applied to revision 3036a72f66f9066888c1002deeedebe0703bb4f7, removing 420 leading both-arm-static frames across the 70 episodes. Static detection uses action differences at 30 FPS, with joint speed below 0.1 degrees/second and gripper speed below 0.1 mm/second. The default terminal retention is 2 seconds; no terminal frames were removed. No internal segments were deleted and neither arm was retimed.

All three cameras and robot data use the same contiguous per-episode slice. Action, state and task values are preserved exactly within those slices. Frame/global indices and timestamps are reset. Videos are encoded by the Trim workflow as H.264/yuv420p, CRF 20, veryfast, at their original resolution and FPS. Video frame counts, timestamps and sampled source-pixel correspondence are validated. All leading static-frame counts are zero when the Trim analysis is rerun.

See trim_manifest.json, provenance.json, and VALIDATION_RECEIPT.json for intervals, original-to-current episode mapping, numerical and video verification, and file hashes. Source task text capitalization differences are preserved.