Distributed Sequential Consensus in Networks: Analysis of Partially Connected Blockchains with Uncertainty

Figure 3

Blockchain dynamics workflow. At step all sites own the -genesis block. At step if miner finds no error in the last block of his local instance of the chain he solves the next block and broadcasts the solution to neighbours. The nonreached sites simply replicate their state. However, if the sending site is a failure node, it will broadcast a failure to one of his neighbours. In this case, if the affected block finds the error in his solving step, he still has a chance to restore the block upon consensus from his acquaintances. In case this consensus is not possible the blockchain collapses.