ideas

- searchbox : little arduino thing that goes on your network that proxies through and for search requests to a network of other searchboxes.  

- cryptographically authentic video : 

   - start with random key (current bitcoin blockheader?)-> rKey
   - and N = 0,

    loop on:
   - generate public pair for (rKey + N) -> qr
   - display within video capture QR code representation of qr
   - jpeg encode frame -> jpgN
   - (hash jpgN) + qr  -> N