Check out
http://deeponion.org website for info, sounds like what you are describing and their team is currently doing free weekly airdrops of this crypto.
It looks interesting, but I don't think owning deeponion tokens incentivises being an active node on the tor network. I think when they claim it helps the network, it does so by the wallets adding to the pool of ips using tor. BTW that is some steep requirement for being in the airdrop, not that I can participate even if I did post a lot (my account is too new by a few days).
Do you mean Mysterium???
https://mysterium.network/it's sort of a VPN service with tokens. Problem is that all those who will accept their private connections to route traffic, can be sued for letting illegal traffic through
That is exactly the sort of thing I was looking for, thanks. Is this the only one, or do they have competition? Looks like they are early in the development process, but it's one to watch.