Lossless compression

Compress the public corpus (text, JSON, logs, images) and decompress it bit-for-bit. Always on: the leaderboard updates every time you submit. Round-trip failures score zero.

Skill contest, no entry fee. You must own or have rights to everything you submit. AI tools are allowed and must be declared. Crew members never judge each other. Results are sealed after anomaly review. Winners complete Stripe KYC before payout.