Variable sync together with other block tile entity?

I made it so that player other than the owner who placed down the block cannot break the block but every time when the first player place down a block the UUID variable is equal to player 1 name but after player 2 place down another block the UUID variable of both block change to the player 2 UUID what did I do wrong? I am still very new to modding! and coding btw

	@Override
	public void onBlockClicked(BlockState state, World worldIn, BlockPos pos, PlayerEntity player) {
		if(player.getUniqueID().equals(ChestTileEntity.permission)) {
			ChestTileEntity.canBreak = true;
			System.out.println("It tried to read to tileentity " + ChestTileEntity.permission);
			System.out.println("Succeseeseidkhowtospeellol");
		}  else {
			ChestTileEntity.canBreak = false;
		}
	}
	
	@SubscribeEvent
	public static void breakSpeedEvent(BreakSpeed event) {
		if(ChestTileEntity.canBreak == false) {
			event.setNewSpeed(0);
			System.out.println("It tried to read to tileentity " + ChestTileEntity.canBreak);
		}
	}

Variable:

	public static UUID permission;
	public static Boolean canBreak;