$ cat writeup.md…
$ cat writeup.md…
hackerlab
Task: a ZIP with msg.txt containing a hidden Vimeo URL among empty lines, leading to an MP4 with whitespace data appended after video atoms. Solution: 6-layer decode chain — whitespace binary → ASCII → binary bytes → base64 → Morse code (digits 1-6) → Braille dot positions → flag.
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