[Sephr]

I'm working on a platform (Peerweb) similar to the product being discussed, and I think I've put more thought into the security and autonomous self-policing aspects of P2P CDNs. I don't waste my time with MD5, and I deeply considered the PKI that I designed.

Also, my platform can offload all assets including the page itself and enables sites to get free failover during content server downtime. Due to my DNS-seeded PKI, your users stay secure and content continues to be correctly authenticated in your P2P CDN cache even when your site would normally be down.