When you don't know where to hide Bitcoins, you may realize that putting them just in plain view, but encrypted, may be the best solution. From there to the idea of creating a puzzle holding the private key of a wallet with a bunch of Bitcoin in it, and making that challenge public, is just a small step.
A step taken in 2015 by two artists, Rob Myers and @coin_artist (a pseudonym) who published in 2015 a painting called '"TORCHED H34R7S" (referencing a William Shakespeare poem, apparently). Inside the painting there was a hidden code that once cracked, contained the private key to a wallet with 5 Bitcoins, worth around $38,000 at the current prices.
Here's how it looks:
Image credit: @coin_artist / Motherboard.
Well, the code has been cracked and the wallet was emptied. But the programmer who solved it wanted to remain anonymous, as he lives "in a country which is non Bitcoin-friendly".
I think it's safe to say that these 5 Bitcoins were "mined" with a different algorithm, namely "Proof of Brains".
If you want to know all the nitty-gritty of this puzzle, as well as other online puzzles related to cryptos, you can just head over to the original Motherboard story.
I'm a serial entrepreneur, blogger and ultrarunner. You can find me mainly on my blog at Dragos Roua where I write about productivity, business, relationships and running. Here on Steemit you may stay updated by following me 
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