**Bitcoin miner Marathon mines invalid block in failed ‘experiment’**

https://images.cointelegraph.com/cdn-cgi/image/format=auto,onerror=redirect,quality=90,width=840/https://s3.cointelegraph.com/uploads/2023-09/ecc84916-2068-40b0-8c65-1680b1243f8b.jpg

Marathon said the bug emanated from its experimental mining pool used to research ways to optimize operations.

https://cointelegraph.com/news/bitcoin-mining-firm-marathon-mines-invalid-block-btc