How does it feel to trade secrets? Would you be rather an investor or the one who sells his mystery? Maybe both? In project „Secret owner“ I have experimented with the idea of trading people’s secrets using blockchain. Stories are recorded as audio track and then sold as NFT. The buyer has two options – listen to the story and reveal the content or keep the purchased mystery as an investment. Audio track can be played only once – then smart contact overwrites, meaning the story becomes unavailable both for listening and trading.