Hedera Hashgraph is a public network based on distributed ledger technology (DLT), developed for businesses and companies as a platform for decentralized services and applications. Hedera positions itself as a third–generation public network, the next stage in the development of bitcoin and Ethereum. The strengths of the project include high scalability, security, smart contracts, energy efficiency and low usage fees.

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Read more from Sarah Chemla at The Jerusalem Post about this collaboration with leading blockchain companies Hedera Hashgraph and Filecoin, the USC Shoah Foundation founded by Steven Spielberg, and cryptographers from Stanford Engineering: 
https://www.jpost.com/diaspora/antisemitism/how-blockchain-can-preserve-holocaust-testimonies-from-manipulation-657308