Proof of Work: Openchain October 1, 2016 Coindesk News 0 Flavien Charlon, Coinprism – Finalist Learn more at www.coindesk.com Related bitcoinBitcoin investingbitcoin investorsbitcoin venture capitalBlock ChainblockchainBlockchain TechnologyCryptocurrencyDigital Currencydistributed ledgerdistributed ledgersEnergyEthereumsmart contractsstartups