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Users broadcast transactions into the network. Miners find and compete to validate blocks created every ten minutes by combining transactions. Who or what assembles the transactions into blocks every ten minutes?
Related: Setting the required number of leading 0s for the winning hash throttles the speed at which blocks, and therefore transactions, are validated. Who adjusts that number?
Hi Nick, Thank you for the answer. I can see how the system works with Miners free to create their own blocks. Not intuitively obvious but understandable now I know for sure that's how it works. And thanks for the link to the rule on the number of zeros. That explains a lot. glb – George Berish – 2015-05-16T21:35:50.943