Types of blockchain
| Types of blockchain | Public blockchain | Consortium blockchain | Private blockchain |
|---|---|---|---|
| Managing entity | All participants (decentralization) | Participants who belong to the consortium | One central institution holds all the authority |
| Governance | It is very difficult to change the rule that has been made | The rules could be changed relatively easily according to the agreement among the consortium participants | The rules could be changed easily according to the decision made by the central institution |
| Transaction speed | It is difficult to expand the network, and transaction speed is slow | It is easy to expand the network and transaction speed is fast | It is very easy to expand the network and transaction speed is fast |
| Data access | Anybody can access it | Only authorized users may access it | Only authorized users may access it |
| Identifiability | Pseudo-anonymous | Identifiable | Identifiable |
| Transaction | The entity for proof | The entity for proof | Proof of transaction |
| Proof | of transaction is decided by algorithms such as PoW and PoS, and cannot be known in advance | of transaction is known through authentication, and transaction verification and block generation are made according to the rules agreed in advance | is made by central institution |
| Utilization cases | Bitcoin | R3CEV | Linq, a stock trade market platform for NASDAQ unlisted companies |
| Types of blockchain | Public blockchain | Consortium blockchain | Private blockchain |
|---|---|---|---|
| Managing entity | All participants (decentralization) | Participants who belong to the consortium | One central institution holds all the authority |
| Governance | It is very difficult to change the rule that has been made | The rules could be changed relatively easily according to the agreement among the consortium participants | The rules could be changed easily according to the decision made by the central institution |
| Transaction speed | It is difficult to expand the network, and transaction speed is slow | It is easy to expand the network and transaction speed is fast | It is very easy to expand the network and transaction speed is fast |
| Data access | Anybody can access it | Only authorized users may access it | Only authorized users may access it |
| Identifiability | Pseudo-anonymous | Identifiable | Identifiable |
| Transaction | The entity for proof | The entity for proof | Proof of transaction |
| Proof | of transaction is decided by algorithms such as PoW and PoS, and cannot be known in advance | of transaction is known through authentication, and transaction verification and block generation are made according to the rules agreed in advance | is made by central institution |
| Utilization cases | Bitcoin | R3CEV | Linq, a stock trade market platform for NASDAQ unlisted companies |