Retrieval market

The retrieval market facilitates the negotiation of retrieval deals for serving stored data to clients in exchange for FIL.

Basic Retrieval from Filecoin

Currently, Filecoin nodes support direct retrieval from the storage miners who originally stored the data. Clients can send retrieval requests directly to a storage provider and pay a small amount of FIL to retrieve their data.

To request data retrieval, clients need to provide the following information to the storage provider:

• Storage Provider ID: The ID of the storage provider where the data is stored.

• Payload CID: Also known as Data CID.

• Address: The address initially used to create the storage deal.

Hot Retrieval from IPFS

Since most Filecoin nodes are also IPFS nodes, standard practice has been for Filecoin storage providers to also make available a hot copy of any given stored file through IPFS. Since the algorithm that generates a content address (CID) is the same for both Filecoin and IPFS, the client can request the CID of a file they stored on Filecoin and retrieve it from IPFS, if there is an IPFS node that is able and willing to serve the file.

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