Protocol | Proves Space N | Stores Data | Short Input | Efficient Verifier | Persistent Space |
|---|---|---|---|---|---|
PDP - Proof of Data Possession | no | yes | no | yes | no |
PoR - Proof of Retrievability | no | yes | no | yes | no |
PoSE - Proof of Secure Erasure | yes | yes | yes | no | no |
PoPS - Proof of Persistent Space | yes | no | yes | yes | yes |
PoS - Proof of Useful Space/ PoRep - Replication | yes | yes | yes | yes | yes |