Core Pack v5 (binary encoding)
Versioned binary encoding of the 1,400,000-puzzle Core Pack. Preserves v4 puzzle semantics and theme relations. Size: 164,163,584 bytes (27.84% smaller than v4). SQLite integrity_check: ok. SHA-256: 4f8726cd64c8e490708f9c6b7b411dad3736d5936c0493d71fd42bbe4404a811. Length-prefixed semantic SHA-256: d1eb3baa7aee47c7638c9952c23b525bca0b21dc7cb4bc6f3ff5b3f8deffaae5.