(BBC News) Shares in photo firm Eastman Kodak soared nearly 120% after it revealed plans to mint its own crypto-currency, the KodakCoin.
The US firm said it was teaming up with London-based Wenn Media Group to carry out the initial coin offering (ICO).
It is part of a blockchain-based initiative to help photographers control their image rights.
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Kodak also detailed plans to install rows of Bitcoin mining rigs at its headquarters in Rochester, New York.