Every time you download a song on Thematic, you will be provided a Thematic License Certificate. 

Your License Certificate provides you with a shareable PDF document that provides proof of the song license for your channel or project.

Keep in mind that the song licenses are specific to your project & YouTube channel (so your license for one channel will not work on another channel).

You can find each of your License Certificates on the  ✅ Licenses & Downloads in your Thematic account. Simply click the Certificate text to open the License Certificate in a new tab.