CauldronBlockEntity
One of enum values.
But... Maybe try <enum value> - 1?
Level of strength, value between 0 and 255 (more buggy to 32768).
Packed RGB color, one of my favorites is -75715.
Amount of item in slot.
Dealed damage, when it comes to item will be broken.
Typed identifier, such as "minecraft:stick".
Indexed slot, required in containers with more than one slots.
Picked up by entity, denies despawn it naturally.
Block Entity will be saved without instantiating new one when transporting (via pistons, commands, etc.).