Blockstream vs ChainLink vs Cardstack
What problem does this service solve?
Blockstream is an influential blockchain technology company that is one of the largest contributors to the Bitcoin Core. It offers software and hardware solutions, as well as professional services. | ChainLink wants to solve the connectivity problem facing smart decentralized applications. By connecting smart contracts to external data resources, many potential use cases for blockchain can be opened up. | Cardstack aims to create an improved blockchain development ecosystem. |
Token Stats
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Company Description
Blockstream is a private, for profit, blockchain technology company, that has played a key role in helping to develop, and fund, many of the key features of the Bitcoin Core platform. Blockstream is focused on developing bitcoin applications and has raised significant funding from several large investment funds. The company also employs several developers that are very influential within the Bitcoin Core development project. This, as well as being of Bitcoin's largest donors, has led to some criticism about conflicts of interest. | ChainLink is developing the LINK Network, which will enable connected smart contracts. LINK will provide smart contracts with a variety of external data and access to APIs. ChainLink's goal is to solve the connectivity problem that plagues smart contract based systems, and discourages mass adoption. Many decentralized applications are unable to connect with important external data sources due to limitations involving their consensus protocols. The LINK network wants to connect their smart contracts with external systems and APIs by using secure middleware. | Cardstack is a blockchain technology company that is developing an open-source framework and consensus protocol to make blockchains more usable and scalable. Their goal is to create a decentralized modular smart contract ecosystem. The Cardstack network is powered by the Ethereum-based CARD token. |