This is a signed transaction. So the one who stole the prize. One of the really interesting thing about the blockchain, is that you can write a smart contract

This is a signed transaction. So the one who stole the prize. One of the really interesting thing about the blockchain, is that you can write a smart contract script that will permiate forever. using a hashed transaction instead of a signed transaction is a wierd mistake to make, but not an uncommon one of people who are just learning to write blockchain code. I know we are talking about BTC here and opcode is rather limited, but this type of thing pervades on ETH. Imagine writing a PWN script as a 14 year old and waking up when you are in your late 20's to a millions dollars in crypto.