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In the letter
- Someone solved the 0xPoland puzzle, claiming 7 ETH as a reward.
- Starting with a billboard in the Warsaw metro, a group of Ethereum enthusiasts tweeted several clues over the span of 10 days.
- After the last clue was posted, the winner took only 21 minutes to claim the prize.
The Ethereum-centric puzzle that started with a mysterious billboard in the Warsaw metro was resolved, awarding the winner 7 ETH (worth approximately $ 4,115 today), the organizers of the event announced last Friday.
How Decrypt On November 16, an enigmatic billboard appeared in one of the metro stations in the Polish capital. He invited commuters to “Solve the puzzle, claim the reward!” and contained an Ethereum address with 7 ETH, as well as the hashtags # 0xPOLAND and # 0xPOLANDHEIST.
At the same time, a Twitter account dubbed “0xPoland“He started posting some cryptic messages accompanied by bunnies and, later, clues. But the very first advantage was hidden in the Ethereum contract code same, the organizers explained. First of all, the winner had to call the “resolve” function and use a secret phrase as a parameter to withdraw the funds.
The first clue was released three days later. It contained the sentences “Hint: ^[A-Z]. *. “(which implied that the secret message had to start with an uppercase letter and end with a period) and” 0x01ccfbfc “, a part of the solution checksum.
The image in the 0xPoland tweet also said “Bring my light, light by my side, light of the burning tower”, a quote from the song “Into the dark forest” by black metal artist Elffor. Therefore, the first part of the secret sentence was “In the dark forest”.
On November 23, 0xPoland tweeted “Answer to the last question about life, the universe and everything” and a long string of characters. The first was an obvious nod to the Hitchhiker’s Guide to the Galaxy (hence “42”) while the string required some programming skills to crack. Finally, the second part of the passphrase was “Down the rabbit hole”.
The third and final clue was published in the Polish newspaper Gazeta Wyborcza (both online and in print) on November 26, although it was a completely new challenge on its own, explained 0xPoland.
“We have decided to place an ad in a Polish newspaper. It is much more difficult than it looks! Several daily newspapers rejected our announcement because they could not understand the concept of the puzzle and preferred to play it safe, “noted the organizers.
The ad said “You’ve come a long way. I have your last clue. Call me ASAP” and provided a phone number that redirected users to a pre-recorded message containing missing elements of the complete passphrase. In the end, the winner had to enter “With 0xPoland. Into the dark forest. Down the rabbit hole. Where adventure awaits.”
After that, it didn’t take long for the winner to claim the prize.
“21 minutes after posting a Tweet pointing to the newspaper page, we saw the winning transaction. The correct hash was assigned to the smart contract, and three minutes later the transaction to solve the puzzle was confirmed. A few hours later, the anonymous winner transferred his hard-earned 7ETH to his wallet, “0xPoland noted.
But why did the organizers go to so much effort to organize this event? As it turned out, mainly to have fun and shake up Polish Ethereum enthusiasts a bit.
“We have been watching the Polish Ethereum developer community closely and felt like it could [be] a little bit of adrenaline rush! “adding:” In addition to some fun, we wanted to offer developers a place to develop their skills and join us in building the decentralized finance infrastructure. “
Eventually, the organizers revealed it 0xPoland is actually the name of a series of meetups, workshops and hackathons for blockchain developers, with the first event scheduled for December 8th.
This is definitely a way to get the word out.
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