Verify and publish a contract source code

Hello, I minted four projects of an NFT And I was given an asset contract, but I am not sure how to verify in published that contract, completely out of my league, just need some help because at first I thought I got scam, pretty new to this if anybody can help me and let me know

Please consult our guide on verification linked below. Feel free to post in #smart-contracts:developer-wanted if you want someone to do it for you.