QuranVerify reads the file bytes exactly as they are and calculates a SHA-256 hash. It does not rewrite text, remove spaces, render PDFs, or judge the content.
Signatures show that a manifest follows a specific trust policy. They do not by themselves prove religious correctness or institutional review.
IPFS, BitTorrent, and blockchain can help with distribution, timing, or preservation evidence. None of them makes a file approved on its own.