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Classification of blockchain [14].
| Property | Public blockchain | Consortium blockchain | Private blockchain |
| Consensus determination | All miners | Selected set of nodes | One organization |
| Read permission | Public | Could be public or restricted | Could be public or restricted |
| Immutability | Nearly impossible to tamper | Could be tampered | Could be tampered |
| Efficiency | Low | High | High |
| Consensus process | Permissionless | Permissioned | Permissioned |
