August 2018
Beginner to intermediate
94 pages
2h 37m
English
Content preview from Learn Bitcoin and Blockchain
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Comparison between PoW, PoS, and PoET
We will now compare the three consensus algorithms that we have seen for a better understanding, and weigh them against certain parameters. The following table shows the state of respective consensus algorithms for each parameter:
| Parameters | PoW | PoS | PoET |
| Blockchain type | Permissionless | Both | Both |
| Transaction finality | Probabilistic | Probabilistic | Probabilistic |
| Transaction rate | Low | High | Medium |
| Token needed | Yes | Yes | No |
| Cost of participation | Yes | Yes | No |
| Scalability of peer network | High | High | High |
| Trust model | Untrusted | Untrusted | Untrusted |
Now, let's discuss the preceding table:
- Blockchain type: This indicates the type of blockchain platform, permission or permissionless, in which the consensus ...
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