- (Main-chain (Blockchain)) For faster consensus, Main-chain is a special sub-graph of the OPERA chain (DAG)
The Main chain — a core subgraph of OPERA chain, plays the important role of ordering the event blocks. The Main chain stores shortcuts to connect between the Atropos.
A leaf vertex is also a root itself. With root event blocks, we can keep track of “vital” blocks that 2n/3 of the network agree on. Figure shows an example of the Main chain composed of Atropos event blocks. In particular, the Main chain consists of Atropos blocks that are derived from root blocks and so are agreed by 2n/3 of the network nodes. Thus, this guarantees that at least 2n/3 of nodes have come to consensus on this Main chain.