Two French hackers have used their computer skills to rebuild a blur code to the TELEVISION and request bitcoins with a value of $1,000 (Â£760).
Michel Sassano and ClÃ©ment Storck had seen an interview with a entrepreneur Roger Ver on French television.
Mr. Worm had been offered $1,000 for the viewers – but a QR code needed to claim the money had been a blur.
The duo analyzed a small part of the code that was visible, however, and has managed to gain access to the funds.
When the France 2 channel broadcast of his interview with Mr. Worm earlier this month, he promised the money – a little over three bitcoin money of the coins, with a value of $ 1,000 – depending on the viewer has been the fastest to scan, a screen of the QR code.
However, the code has been blurred by France 2 – Mr. Sassano believes that it is because of the regulation of the French radio that prevent the programs of information and giving away prizes.
“The process of decoding the private key from the time we watched the show when we entered it in the purse took, I think, between 12 and 16 hours,” Mr. Sassano told the BBC.
He and Mr. Storck explained the process in detail in a blog post.
Their fortune depended on a moment towards the end of the segment of the TELEVISION when a small portion of the QR code has been actually shown unblurred.
The most perceptive pair also noticed that the top of the QR code and a key part of the writing in the letters and the figures have not been sufficiently blurred, making them readable with the software.
They have been able to establish what they knew with certainty about the structure of the code, which is equivalent to about a third of it – in a spreadsheet.
From there, the duo worked as much as they could on the lack of the parties, based on their knowledge of how the QR codes are designed.
Finally, they calculated that there were about 2.1 million possible combinations.
“We have two valid keys that correspond to bitcoin private keys,” said Mr. Sassano.
One of these turned out to be the answer they were looking for.
They have transferred the money on October 17 – a line of bitcoin wallet shows the transaction.
“The money is the icing on the cake, but the most exciting was when we found the private key and the algorithm told us it was the only one,” said Mr. Sassano, adding that he has not yet withdrawn the money.
Michel Sassano and ClÃ©ment Storck
Roger Ver describes the work as “incredible”.
“With almost no information at all, they were able to reconstruct the private key and claim the funds,” he says.
“If you have the time to read the blog, it is absolutely amazing.”
He also reveals that he has been “flooded” with messages from viewers who have watched the program and I wanted to know if he kept a copy of the QR code – but he didn’t.
“I deleted it,” he says. “Now I have something to say to the French people [who contacted me] – someone managed to claim it.”
The BBC has contacted France 2 for comment.