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     8 years ago 

    Pretty sure they're blockchains. But I've had my doubts a few times.

    Decentralized-- well there's a bunch of ways of defining that.

    Trouble is they don't even work as described, and since they're so screwed up, when you ask if x y or z works, the orgs behind them actually think it's better to lie.

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       8 years ago 

      They are replicated databases among a set of trusted nodes (validators). Have nothing to do with Satoshi's invention. Could have been around since the 1970s really.

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         8 years ago 

        Have nothing to do with Satoshi's invention. Could have been around since the 1970s really.

        Wrong.

        previous    00aaa926542a55e9ca9b9e678a93e6c6e4bf9c85
timestamp   2017-04-18T21:57:27
witness     gtg
transaction_merkle_root 382b5642e0c19f8558012e955eb81815d3322caf

        https://steemdb.com/block/11184423

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           8 years ago 

          I know you may think it's obvious, but you didn't state why pfunk.

          Is it because each block is signed by a particular witness unlike Bitcoin?

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             8 years ago 

            Someone with enough knowledge to make a claim that something is or isn't a blockchain would take the hint.

            The point I'm making is the block I linked, that included his comment saying that Steem could have been around in the 1970s, contains a reference block_id which includes a hash of the previous block.

            The first 4 bytes of the block_id is the hexadecimally encoded block number and the following data is a truncated hash of the block.

            Blockchains are created and verified by "chaining" together a series of data blocks that include cryptographic hashes to the previous block. The "chains" between old blocks and new are mathematically strong crypto hashes. Any attempt for a single party in a decentralized ledger to change transaction data in an old block will fail because it breaks verification of the chain.

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               8 years ago (edited)

              that's also what git does, and git is not a blockchain. The Merkle Tree was patented in 1979.

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                 8 years ago 

                You're missing the point. Read the other comment. Or just quit trolling if you know better.

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                   8 years ago 

                  I did. You're (almost) perfectly describing Merkle Trees.

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                     8 years ago 

                    How are you defining a blockchain?

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