Filecoin is developing a blockchain-based cloud storage solution. Filecoin tokens are used to power a marketplace for file storage that connects users through a bidding system. This pricing model is different from other blockchain storage solutions like Storj and Sia, that have set pricing for uploading files to their networks. Filecoin was created by Protocol Labs, a company with an established reputation for developing other network based storage solutions. They raised $205 million in a token sale. Filecoin has an innovative consensus mechanism that is a type of Proof-of-Storage, and is based on Proof-of-Replication (PoRep) and Proof-of-Spacetime (PoSt). This hybrid consensus system allows users to verify that files have been allocated to their own unique space in storage memory, and are being stored for a specified period of time.

YottaChain is developing a blockchain-based file storage solution with enhanced encryption capabilities. The company takes its name from the largest unit of measurement in the metric system. YottaChain aims to create a decentralized storage network that improves upon existing centralized storage systems, as well other blockchain projects working in the storage field such as Filecoin.