The info hash is in SHA-1 Format right ?
The infohash is an SHA1 hash of part of the information in the .torrent file.
It is not a hash of the file(s) that will be downloaded when you use the torrent.
You do not need to verify the hash of a torrent download because your torrent client does it for you.
If your client indicates that you have a completed download then you can be confident that you have all the files, with the correct hashes.
What exactly is the info_Hash in a torrent file:
https://stackoverflow.com/questions/28348678/what-exactly-is-the-info-hash-in-a-torrent-file
How Does BitTorrent Work? a Plain English Guide:
https://skerritt.blog/bit-torrent/
If you want to see what's in a torrent file then get Bencode Editor here
https://sites.google.com/site/ultimasites/files