  This paper proposes an architecture for dynamic decentralized marketplace for
trading of Internet of Things data. To this end, we introduce a 3-tier
framework which consists of provider, consumer and broker. The framework is
realized using multiple trustless broker which matches and selects potential
data provider based on the consumers requirements. Rather than using a
centralized server to manage the contract between provider and consumer, the
framework leverages smart contract-based agreement for automatically enforcing
the terms of the contract to the involved parties.
