Enhanced Multiset Consensus Protocol Based on PBFT for Logistics Information Traceability

Table 2

Comparison of four consensus algorithms.

Consensus algorithm	POW	POS	DPOS	PBFT
Degree of centralization	Decentralization	Decentralization	Partially decentralized	Partially decentralized
Whether to resist Byzantine nodes	Y	Y	Y	Y
Is permission required	N	N	N	Y
System scale (number of nodes)	Unlimited	Unlimited	Unlimited	Limited
Node dynamic changes	Support	Support	Support	No support
Applicable scene	Public chain	Public chain	Public chain	Alliance chain
Consistency	Weak consistency	Weak consistency	Weak consistency	Consistency