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A comment on On blockchains and why secure ledgers don't require proof-of-work. Parent comment

Re:On blockchains and why secure ledgers don't require proof... by runeks on Tuesday November 07, 2017 @03:19PM (#15647138)
Where does the blockchain come in? As long as you have a signature from the central authority over two conflicting transactions, you can prove it has defrauded you.

Blockchains specifically solve decentralized consensus. It’s expensive and slow compared to using a central authority, but the advantage is that the system doesn’t suffer from a central point of failure.

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Re:On blockchains and why secure ledgers don't require proof... by dozzie on Tuesday November 07, 2017 @06:22PM (#15648661)
> Blockchains specifically solve decentralized consensus.

Wrong. Blockchains specifically timestamp documents. Consensus is a different problem and blockchains don't even touch that.

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