Filecoin is a protocol token whose blockchain runs on a novel proof, calledProof-of-Spacetime, where blocksare created by miners that are storing data. Filecoin protocol provides a data storage and retrieval servicevia a network of independent storage providers that does not rely on a single coordinator, where: (1) clientspay to store and retrieve data, (2) Storage Miners earn tokens by offering storage (3) Retrieval Miners earntokens by serving data.