You will need to get this from your CP MySQL tables

NOTE: CoreProtect does not match up these IDs with the block's in-game ID, so air is not 0, stone is not 1, etc.

1. mysql -p <coreprotect database> -e "SELECT id, material FROM co_material_map" > blocks.txt
2. Open blocks.txt
3. Remove the header row
4. Remove spaces/tabs and delimit with a ','
e.g. 1,minecraft:air