Filecoin Proof of Replication Technical Report

Filecoin Proof of Replication Technical Report

Login to download
Currency
Filecoin
Abstract
We introduce Proof-of-Replication (PoRep), a new kind of Proof-of-Storage, that can be used to prove that some data D has been replicated to its own uniquely dedicated physical storage. Enforcing unique physical copies enables a verifier to check that a prover is not deduplicating multiple copies of D into the same storage space. This construction is particularly useful in Cloud Computing and Decentralized Storage Networks, which must be transparently verifiable, resistant to Sybil attacks, and unfriendly to outsourcing.

This work (a) reviews Proofs-of-Storage and motivates use cases; (b) defines the novel Proofs-of-Replication, which can be publicly verifiable, transparent, authenticated, and time-bounded; (c) shows how to chain Proofs-of-Replication to establish useful Proofs-of-Spacetime.

Acknowledgements
This work is the cumulative effort of multiple individuals within the Protocol Labs team, and would not have been possible without the help, comments, and review of the collaborators and advisors of Protocol Labs. Juan Benet and Nicola Greco conceived of the Proof of Replication in collaboration with the rest of the team, who provided useful contributions, comments, review and conversations.
Top