Sia is a decentralized cloud storage platform similar in concept to Dropbox and other centralized storage provider where instead of renting storage space from a centralized entity, clients rent storage space from other peers. The only difference is Sia uses blockchain to facilitate transactions Nodes provide storage to clients using the Sia blockchain as contracts. Before storing the data, the data is encrypted into many pieces and uploaded to different hosts. Siacoin is created by David Vorick and Luke Champine of Nebulous Inc. As the traditional storage platforms are higher in cost, more expensive and data is not well protected. Siacoin promises to offer secured storage transactions with smart contracts which is more affordable and reliable. Moreover, it is completely open source which means many individuals have contributed to Siacoin’s software hence there will be an active community building innovative applications on top if the Sia API. In 2018, Siacoin aims to introduce file sharing and be the go-to cloud storage platform for companies. Their goal is divided into 3 time frames which are short-term, medium-term and long-term development. Short-term development focuses on file sharing between Sia users. This allows Sia users to share files in the platform without having to take it off the cloud while increasing network utilization. Medium-term development’s goal is to enhance partnerships. This means reaching out to large companies like Netflix and Dropbox to hopefully be able to be their storage and distribution framework. Lastly, long-term development aims to expand its horizon to share files with non-Sia users and support mobile wallets.
CommerceBlock is a public blockchain infrastructure company that is architecting a platform that allows anyone to build and use financial products and services historically reserved for commercial banking customers. The CommerceBlock network will be the first technology platform that provides a combination of trust minimal trade, decentralised contract execution, on-chain derivatives, and asset-backed token issuance to public blockchains. The advent of the Bitcoin protocol has enabled permission-less financial innovation. CommerceBlock’s product offerings provide a suite of tools that enables anyone to build and use services that construct contracts, manage trade flows, engage in multiparty dispute management, issue assets, and hedge currency risk. Developers and end users will be able to manage all stages of a business interaction and fulfil their contractual obligations by utilising the CommerceBlock platform. These services will be integrated into infrastructure we have already implemented. We have released the first open-source implementation of the pay-to-contract and homomorphic address protocol outlined by Timo Hanke and Ilja Gerhardt. The protocol has been designed in such a way that all business logic, customer funds, and trade details are managed on the client side meaning at no point does CommerceBlock have access to customer funds or private information.