30.3.2019, 12:12 GMT+1 Keeping up with KELTA KELTA promised a lot of changes for this year to come, let’s take a quick look at the first big wave of changes. 5.3.2019, 10:00 GMT+1 Blockchain basics What is the blockchain? How does it work? Who makes all transactions? These are only some of the most elementary questions about this still very new ...