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RE: How Engine Works
I see with the fees and proposal system, but why do you need a way to reach consensus considering that Steem already does that for you? I’m just trying to understand — thank you for your time.
Basically, the Steem blockchain provides the consensus for the inputs but you need to have a way to reach a consensus on the outputs, If I take your example with the counters, if one node is somehow not able to reach 1000 loops, it will then provide invalid data, so you need to have a way to indicate that the transactions were (not) processed as they should have. Then you compare this output across the other nodes and try to reach a consensus. (but that's theory... for now I'm just thinking about a tool that will get the blocks from the nodes, compare them and expose the results of the comparison, that will easily show which nodes are not "doing their job" correctly so that you can vote them out if necessary. (as the nodes that are in the top 21 are getting tokens every time a block is produced)
Ok great; Stratos is doing a similar thing but I just don't call them 'blocks', I call them 'consensus checks'. Every 5 minutes or so every node (who opts in) posts a hash of their current state to the blockchain and compares that to everyone else's. So then you can audit whether the nodes are in consensus easily as well as tell if there is a problem with consensus while in testnet.