http://ttevhjjsjxz6uqqcjkbig5cycd7n7xv7cmd6f5fcvrqaaa7f3bj36wad.onion/technology/security/pow/index.html
Notes Proof Of Work (PoW) for Onion Services FAQ ¶ About ¶ This page has some possible Frequent Asked Questions (FAQ) about the Onion
Services' Proof of Work (PoW) defense 1 . If you have further questions, please ask them in the Tor Forum . Acknowledgements ¶ This FAQ adapts, summarizes and glues together a lot of the existing
documentation (specs, ticket comments and custom explanations).