Will witnesses be able to generate new coins?
At what rate?
How many witnesses can be created?
Is there a cap on the total coins that can be created?
1. Witnesses are block signers. They cannot generate on their own.. it is predetermined in the code.
2. 3 second or less blocks.
3. In theory unlimited. We will have to put a number in the code though, so will start with 1000 upper limit.. more likely to start with 15 or so.
4. Hard limit in the code similar to bitcoin 21m we have set at 15m.