Blockchain technology builds on the packet $$ concept in which each packet connects to the previous packet according to specific software.

Most private corporate blockchains, such as Microsoft Blockchain, use the consensus mechanism.

proof$-$of$-$willingness $($PoW$)$

proof$-$of$-$work $($PoW$)$

proof$-$of$-$authority $($PoA$)$

proof$-$of$-$stake $($PoS$)$