Bitcoin Puzzle

[fearfulcalm]

have anyone heard about bitcoin puzzles
i discovery some like them like a btc address hidden inside a picture and i btc sent for easy 2^x hex secret exponential password

i would like to know if someone know about it, if you guys already know any different puzzle

[TheArchaeologist]

https://www.reddit.com/r/4a5e1/ might interest you. As far as I know it is somehow attached to bitcoin, although I couldn't figure it out myself.