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Well, what makes a blockchain a blockchain is not that it's a list of nodes where each contain the hash of it's previous node. In that case git would be a block
by amag 10y ago
Well, what makes a blockchain a blockchain is not that it's a list of nodes where each contain the hash of it's previous node. In that case git would be a blockchain. It is the PoW and consensus programs that make it a blockchain.
- lostsock 10y agoNo, that's what makes a block chain useful. The "block"+"chain" is exactly a connected set of blocks
- SkyMarshal 10y agoThat's actually not what makes a blockchain uniquely useful. "block+chain" also makes Git and other merkle tree-based datastructures useful, but what makes blockchain useful is unforgeability via chained PoW's.
- ajross 10y agoIs git (at least the SCM of a big project, the kernel, say)... not a block chain? The hash chain is (notwithstanding some recent discoveries) secure, the series is externally archived, "proof of work" is provided by trusted human review. Obviously no one uses the kernel series to store arbitrary data on behalf of the patch submitters. But you could, without modification to the software or processes.
- jcahill 10y agoCommits aren't automated and their contributions aren't commensurate. It's a distributed system, but not one solving the same problem. We can always torture the concrete into extended metaphor. It just doesn't add any value here.
- andirk 10y agoDo we agree with this: "blockchain: A list of validated blocks, each linking to its predecessor all the way to the genesis block." from Mastering Bitcoin: Unlocking Digital Cryptocurrencies, by Andreas M. Antonopoulos