@fbirde Thanks for clarifying. Since this thread is specifically about Zenith, your broader concerns about Proof of Stake are certainly relevant. I was the one who introduced the post-quantum dimension because Zenith itself will eventually need to operate under different cryptographic assumptions.
Recent theoretical advances have substantially reduced the estimated quantum resources required to solve the elliptic-curve discrete-logarithm problem on comparable 256-bit curves. That does not mean that a practical attack exists today, but it does reduce the planning margin available for redesigning, reviewing, deploying and completing a protocol migration.
There is also a broader and worthwhile question about which consensus model is better suited to the quantum era. My own view is that a private Proof-of-Stake system such as Zarcanum and Zenith may ultimately be better positioned than Proof of Work, provided that its ownership, authorisation and eligibility mechanisms are migrated in time.
That comparison probably deserves a separate thread of its own. Ideally, HF7 should already introduce hybrid authorisation. At minimum, it should establish the transaction formats, wallet support and architectural boundaries required for an orderly post-quantum transition, rather than leaving Zano to improvise an emergency migration later.
