I generated a Nostr key with 38 bits of work using negrunch's amazing rana Rust tool, so I'm switching my Nostr profile to that now. It took 40 hours on a 16-core Ryzen 5950!
https://github.com/grunch/rana
https://astral.ninja/000000000652e452ee68a01187fb08c899496cb46cb51d1aa0803d063acedba7