Sharder Protocol is a cross-chain distributed storage protocol based on blockchain, with multiple optimizations and innovations, such as the Watcher and Prover roles,
the Sharder-UTXO and Sharder Keypair models, and cross-chain architecture. The Sharder public chain, along with other public chains that deploy Sharder Protocol,
constructs a decentralized, secure, efficient, and permanent sharing network where the users could share their extra storage capacity and get reward, analogous to Airbnb.
Many commercial applications could be developed upon this sharing network, such as our Bean Cloud, which provides storage, proof and security services for all kinds of e-contracts generated in governments, finance, e-commerce, medical cares, etc. In addition to traditional digital documents, Sharder is hopefully able to store any data including biological data (such as medical records, DNA information), even people's thoughts and memories.