This is obviously the folks at bitcoin decentral.ca saying they are the developers of bitcoin and the folks behind the cicada 3301 puzzles.  They are satoshi.  They wrote Satoshi's paper. 

The mystery behind Satoshi and Cicada 3301 is now solved.  Vitalik is the king of bitcoin and they are now developing Ethereum.  This is the next big development. 

This competition is just to bring out this information.