A SHA-256 fingerprint is a kind of digital signature or “DNA” of your file.
It works like this:
When you drag and drop a file into EMOZ, the system scans the content and creates a unique code made of letters and numbers.
This code is called a hash, or more precisely, a SHA-256 hash.
Even a tiny change in the file (like one extra space or a single dot) will produce a totally different fingerprint.
Think of it like this:
It is similar to a fingerprint for humans: unique to each file.
But instead of scanning your finger, it scans the content of your file and gives it a code that no other file in the world will have.
This is the fingerprint that EMOZ saves in the blockchain, not the file itself.
So your privacy is protected, and your file stays on your device.
But anyone in the future can check: “Was this exact file certified on that date?” by comparing its fingerprint.
No two files can ever have the same SHA-256 fingerprint, unless they are exactly the same, down to the last byte.