I've been working on a custom PoW algorithm specifically for this proposal. It is 10x faster to verify than RandomX-Tor and doesn't require any memory for verification.
Full write-up is here: https://github.com/tevador/equix/blob/master/devlog.md
Especially the comparison table in the Appendix may be of interest to this discussion.
T.
On Sat, May 9, 2020 at 9:38 PM tevador tevador@gmail.com wrote:
I have implemented this in the tor-pow branch of the RandomX repository:
https://github.com/tevador/RandomX/tree/tor-pow