Table 2 Consensus algorithms in blockchain networks.

From: Patents and intellectual property assets as non-fungible tokens; key technologies and challenges

Classification

Consensus algorithms

Voting-based consensus

Practical Byzantine Fault Tolerance (PBFT)44, Yet another consensus (YAC) protocol45, BFT-SMaRT protocol46, Ripple47, Raft48, Delegated Proof of Stake (DPoS)49, Paxos50, Clique / Aura protocols51

Chain-based consensus

Proof of Work (PoW)1, Proof of Stake (PoS)52, Proof of Elapsed Time (PoET)53 Proof of Weight (PoWeight)54, Proof of Burn (PoB)55, Proof of capacity (PoC)56, Proof of Activity (PoA)57, Proof of importance (PoI)58

DAG-based consensus

IoTA (Tangle )59, HashGraph60, Nano61