I saw david chaum actives in many conferences these days (source: twitter) but there is not quite enough information of the consensus distribution, is this coin mineable?

than ETA please....
We still don't know much about Elixxir; David Chaum seems to be keeping it all a secret until the time is right to release such information.
Right now, at WebSummit, David Chaum is discussing Elixxir:
https://twitter.com/elixxir_io/status/1060495179889721345