Licensing a spring boot application inside an AMI

Question

Say we have a standalone spring boot application which we are going to distribute by creating an AMI and sharing on the AWS marketplace. Since the jar is available inside the AMI, I want to stop a user from buying the AMI on the marketplace and then redistributing my jar.

This is my current implementation plan for this:

1. When building the jar, I bundle a blank file (ex: test.abc) with the jar
2. When user starts jar for the first time, I check if this file is blank, if it is, then I write the mac address of the current machine into the file
3. Validate the file to check if the mac address on the file is same as the mac address of the machine

There will also need to be a way of "hiding" the file test.abc from the user so he/she cannot rebundle the jar with another blank test.abc.

Is there a better/industrial standard of meeting this requirement?