Facebook has launched a new cryptocurrency called Libra. It is uses a distributed ledger, via a blockchain, but it is very different to BitCoin's blockchain. For starters it is a permission based blockchain (not a permissionless) and it doesn't use proof of work. So there will be no mining for Libra coin!

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Libra Core: https://github.com/libra/libra
Move: https://github.com/libra/libra/tree/m...

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