Just to clarify, they are from the early days, but they are also from the now days. They are still publishing. A link to their official site is in the above Wikipedia article.
For a non-crypto alternative, check out Distributive DCP [1]. You deploy compute workloads which are executed in secure wasm sandboxes (even in your browser [2]). People computing get paid to compute other people's workloads.
https://www.ckts.info/