http://ttevhjjsjxz6uqqcjkbig5cycd7n7xv7cmd6f5fcvrqaaa7f3bj36wad.onion/technology/security/pow/index.html
How is this different (or the same) from PoW in the cryptocurrency space? ¶ The Onion Service Proof of Work (PoW) mechanism was designed to address the
specific challenges to the Tor network, and has different properties from the
bitcoin PoW.