The second and third clues to Satoshi's Treasure, a Ready Player One-esque Bitcoin ($BTC) game, were found a full day before the clues were even announced due to hacking of the main site. Player John Cantrell used information from the first key, a QR code, to unlock the next two keys, summarily publishing his method on GitHub. According to a representative of the game, Dovey Wan of Primitive Ventures, the backdoor was purposefully built in and has triggered difficulty adjustments.