Blockchain system architecture Sample Clauses

Blockchain system architecture. ‌ Our design relies on a local blockchain infrastructure that operates over an Ethereum-based API running on a set of local Ethereum servers. Main components Each device is represented as a Smart Contract in the Blockchain. The Registry is responsible for anonymity and authorization. The Relay allows End-Users to participate without being connected directly to the Blockchain. An External DB stores sensitive device information User transaction flow End-Users obtain transaction tokens from the Registry. End-users send signed transactions to the relay. The Relay forwards transactions to a permissioned blockchain. The blockchain verifies transaction validity with the registry. If necessary the External DB is consulted or updated. The Blockchain executes and records the transaction. We have set up an Ethereum node, which is loaded with the set of smart contracts used to model the system. These smart contracts hold the definition of the operations that are needed to mimic the system behaviour and to provide the necessary features (data immutability, security, transparency).
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