Imagine this in the distant future. You buy a new bitcoin signing device which is open source (hardware & software). You stop by nostr:nprofile1qyxhwumn8ghj7cnjvghxjme0qyt8wumn8ghj7etyv4hzumn0wd68ytnvv9hxgtcqypwly85wcy0zreahzzk86my5gf6q0tnfaya8lncdpglw97kylhyykqkwds9 and pay 100 sats to use their chip verifier. It checks that your hardware wallet chips match the open source spec.

Sounds like science fiction, but check out this new talk by Bunnie Huang where he presents a technique for "seeing through silicon" - inspecting chips which are on circuitboards from the backside without removal.

https://youtu.be/8aLW4UEuJ_c?t=130