Talk:Cardano

Slot leader notes

In Ouroboros classic, slot leaders are known publicly ahead of time and there is always one slot leader per slot. In Praos, each stakeholder knows which slots they lead ahead of time. Others only find out once they publish a block. There can be multiple slot leaders for a slot or none at all. Praos uses a verifiable random function (VRF) as it’s core randomness generating scheme. Given a private key and an input, a VRF scheme outputs a pseudo-random number and a proof. Anyone with your public key and the proof can verify that the number was produced with the given input but can’t produce the number before that time. (source)