CauldronBlockEntity

−{}CauldronBlockEntity:compound extends IContainerBlockEntity

Cauldron with ID = 16.

Tid:string= "Cauldron"

IPotionId:int

One of enum values. But... Maybe try <enum value> - 1?

IPotionType:int= -1

Level of strength, value between 0 and 255 (more buggy to 32768).

ICustomColor:int

Packed RGB color, one of my favorites is -75715.

Contained slots, which is stored in numeral-index sorting starting with zero.

+{}Block:compound extends Block

ICount:int

Amount of item in slot.

IDamage:int= "0 // not damaged at all"

Dealed damage, when it comes to item will be broken.

TName:string

Typed identifier, such as "minecraft:stick".

ISlot:int

Indexed slot, required in containers with more than one slots.

BWasPickedUp:byte

Picked up by entity, denies despawn it naturally.

+{}tag:compound extends T

Additional data, such as nametags, enchantments, etc.

Block Entity will be saved without instantiating new one when transporting (via pistons, commands, etc.).