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Blockstack is an ecosystem of decentralized applications (dapps) intending to bring the nature of blockchain to the entire internet by means of security and digital rights. It uses a new DNS (domain name system) built on top of blockchain as the basis of the dapps, allowing users to attach information to identities stored in the blockchain, enabling them to communicate and connect with one another in a direct, encrypted manner.
Ethereum is an open-source computing platform that includes smart contract functionality. Ethereum uses its token, Ether, to transact accounts and compensate for computations performed. Web3j provides an integration layer to the Ethereum blockchain for Java applications. Photo credit: https://developer.oracle.com To start, anything that is computed within Ethereum and executed is considered a transaction. For example, if a user INSERTS data…