During slot battles or height battles between stake pools, the realtime chain tip on Pooltool displays (B) and (L) for the pool that has a lower "Block" and "Leader" VRF value, respectively. Here is an example of one such instance (height battle).
My question is twofold:
- What are Block and Leader VRF values?
- How do they relate to the winners/losers of slot battles and/or height battles?