This number will automatically award from CLAKS. It is unique for every container. The container ID exists of 10 figures, e.g., 02-001-0020-3. The first both figures brag the year, here in 2002. The next 3 figures prove the working group, here working group 001. Then here comes a running number with the next 4 figures, therefore, 0020. Then the last figure, here 3, is a test figure.