AES Decryption Key
After submitting your hash (SHA256) through Copyrobo apps (Web, iOS, Android, Chrome) you receive not only a Public Link but also an AES Decryption Key. This key will help you to decrypt AES encrypted text (Your user ID, date, time and hash value) where you can find it in Public Link and HashPool.txt file.

Step 1:
Open the related Public Link from your email or activities page.

Step 2:
Search your file’s hash value
i)  in Public Link or  
ii) in HashPool.txt

Step 3
Find your hash value and copy the AES encrypted text

Step 4
Open Copyrobo AES Decryptor and paste the Key there see the original text

Thanks, Hope this helps!