Quick Question on late-stage Casper

Proof-of-Stake
1

Hi, I’m trying to find some documentation on who gets to create the blocks/checkpoints in late-stage Casper: In early-stage Casper, blocks/checkpoints are simply determined via the underlying POW system.

Can someone point me to documentation that describes where blocks originate from in late-stage Casper? The obvious mechanism would be to simply select a random validator for the task to create new blocks (and then use the Casper voting mechanism to work around situations where this validator performs their task incorrectly) but is there a document that confirms this?

Hopefully these sorts of questions are appropriate for this forum- Thanks!

2

This is not yet decided. There are two alternatives that I’m aware of:

  1. Use Iddo Bentov’s “everyone can create blocks” proof of stake
  2. Turn votes themseves into blocks, so there would be some mechanism for deciding who can create a block on top of a given head at a given time, and every block is simultaneously a block and a vote to try to justify/finalize a checkpoint.
3

Thanks- That offers helpful context.

4

Do you have a reference to Iddo Bentov’s “Everyone can create blocks” algorithm? It would be interesting to study.

5

I was thinking of this: https://arxiv.org/abs/1406.5694

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