People could send a text message with the code and get a message back confirming that what they bought is listed in a database.

VOA: special.2010.03.01

"That used to be the message that was in the highway code, " he said.

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The FBI determined Keyes left behind no code or hidden message in his writings.

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Its mission is to broadcast the message "Hi this is Niwaka Japan" in Morse code, using bursts of intense light to draw dots and dashes across the heavens.

ENGADGET: Japan's LED-stacked cubesat will burn Morse code into the heavens