PASADENA, CA: When the Mars Exploration Rovers were launched last year, The Planetary Society placed on board hidden messages as a public involvement activity in their educational Red Rover Goes to ...
Chances are, you’ve heard of the police code 10-4, which means “affirmative” or an acknowledgment of a message. But if you hear a police officer say 10-33, there’s a police emergency underway. However ...
Bitcoin’s blockchain allows users to embed hidden messages, functioning as both a financial ledger and a permanent message board. Bitcoin’s OP_RETURN field enables users to store short messages ...