Resource Sharing of Smart City Based on Blockchain

Table 1

Differences between block chains.

Property	Private chain	Alliance chain	Public chain
Participant	Members within the organization	Alliance member	Anyone
Read permission	Restricted	Public or restricted	Public
Consensus mechanisms	Solo and PBFS	PBFS, Kafka, Raft	PoW, PoS, and DpoS
Efficiency	High	Low	Low
Represents	Multichain	Hyperledger fabric	Bitcoin and Ethereum