How can a middleman forward your AI request with its own API key, without reading your prompt, and without ever giving you the key? I explained routstr-confidential (an experimental @routstr mode) as a magic show: a key tree split between two people, a sealed envelope, locked boxes, cards the magician can't see, and a Where's Waldo proof. It's all plain cryptography, with no enclaves. There's a 35-minute illustrated video plus the short written version.

https://juraj.bednar.io/en/blog-en/2026/10/12/seven-magic-tricks-inside-one-ai-request/

https://vimeo.com/1235021232?share=copy&fl=sv&fe=ci