Sulfur Cube options for datapacks

The Sulfur Cube NEEDS a tag to prevent the player from:

• Removing or switching the block inside it
• Pick it up with a bucket

This mob will be SOOOO useful for datapacks, as long as theres a easy and direct way to do this! PLEEEEASE do not let this opportunity pass! Just 2 simple tag as "can_be_bucketed" and "can_modify_block_inside" or something would do WONDERS!