Loading collection data...
Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
For anyone looking through the comments maybe even 2 years later like me, Here is some more info. Nothing concise or well written just some notes that may help you. It isn't anything close to an answer but should help hopefully.
00-09 - 00, 01, 02 ... 09
10-15 - 0a, 0b, 0c, 0d, 0e, 0f
16 - 25 - 10, 11, 12, 13, ... 19
26 - 31 - 1a, 1b, 1c, ... 1f
32 - 41 - 20 ... 29
42 ... 255 - 2a ... ff