This track: https://tm.mania-exchange.com/maps/228267/tmsc-relevation
has a strange UId: 5b959136-d8f4-4c5c-b899-ad84c9355e02

Normally, a UId consists of at most 27 characters matching '[A-Za-z0-9_]'. In the Dedimania TM2Stats database it is the only map in any environment with this mysterious UId format, but it has no records. Possibly because existing controllers don't handle this UId format, nor does the master server which truncates it to 5b959136-d8f4-4c5c-b899-ad8 (the first 27 positions).

I don't keep up with current TM2 developments (if any) so I don't know if this UId format is well known already -- or a bug while saving the map. Would anyone have further insight?

Hi Xymph,

this Map-UID is a UUID or GUID (Microsoft), which is generated in this form in the game. The map UID is then generated from this UUID (and other profile data).

Until TMUF, only parts of the binary UUID were used. It would be impossible for it to be stored completely in the map.

During the development of Maniaplanet, however, the generation of the map UUID was simplified. The binary UUID is converted to a string and processed that way (I can't remember the details).

So I can't rule out that the game actually wrote this map UID this way due to a bug.


Another possibility is that the map UID has been changed (edited) by a player. With tools like GBX.NET Exporer, which were developed on basis of GBX.NET, Gbx files can be manipulated quite simply.

Using GbxExplorer I was able to write the UUID you mentioned above into another map without any problems. The tool does not seem to check the input for plausibility (at least not for the UID).

Ok thanks. Will just let it linger in Dedimania, then.