Marketbob is a powerful PHP script designed to create a dynamic and multi-vendor digital marketplace.
Demo: https://codecanyon.net/item/marketbob-multivendor-digital-marketplace/52328840
This tool allows authors to verify purchase codes after receiving them from their buyers to check if they purchased an item or not.
Demo: https://codecanyon.net/item/license-verification-tool-for-marketbob/52674963
This is not an independent script, this is an Add-on for Marketbob - Multi-Vendor Digital Marketplace.