Video chat "lock & key" secure channel handshake

Hi everyone. I am the inventor of Bitpeople (dot) org that was invented between 2015 and 2018 in collaboration with "bitnation" (I since distanced myself from "bitnation" because their vision is wrong, I can specify how if anyone is interested). It was originally called Virtual Pseudonym Parties or Online Pseudonym Parties, then for a short time Pseudonym Pairs. I also built a people-vote consensus engine a year and a half ago (under my Swedish foundation Panarchy foundation that also develops Bitpeople), and have now spent half a year solving the "reserved payment attack" in multiphop payments (this is not under my foundation, it is part of a separate and older project called Resilience as it required such a solution).

The "Achilles heal" in Bitpeople is the man-in-the-middle attack and this has been very openly communicated since 2020-something probably. There are many different ways to solve it (i.e., to establish a secure channel). I have left the problem open over the past 5 years or so, and prioritized things such as

I think one of the most secure might be the "lock & key" video chat handshake. It is quite simple. Both people in the pair commit (encrypt and share with the other person) a video plus their public key. At this point, the two people know absolutely nothing about one another, as they are registered with laundered keys that cannot be traced to the previous month's event. They then do the video event, and after, they reveal their committed video + public key.

A bit like a "hash lock" but with video. I have considered similar ideas over past 5 years, and wanted to mention it here if anyone is interested.

On the "but AI" issue: 1-on-1 video chat is the most secure "digital Turing test" there is. Of course, a hypothetical science fiction technological singularity would break it but then such a system could grow a retina more easily or probably build replica androids indistinguishable from people too so at that point most proof-of-unique-human systems collapse anyway - I only mention this science fiction scenario as some people here believe it is already real, and those people typically tend to believe the neuron-transistor analogy, that biology settled for transistors that are 10000x the diameter of our technological ones and that Moore's law somehow did not apply in biology, but I do not think that is a reasonable assumption at all. Rather the transistor is probably protein-scale, like tubulin which is 4.5x8 nm. I love AI, use it all the time and have been very interested in it since Watson won Jeopardy in 2011.