hey guys,
here you will find a presentation about the proof of stake of ethereum.
https://docs.google.com/presentation/d/1LpqtiZLdBb5DsAS0xgCDsrvbGLhuhVkVUjUhuJGfYGg/edit#slide=id.g11656f3949_0_11
i hope this information could help you guys out.
take care of you