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Abstract We developed a framework, called Trusted Blockchain-Oracle Request Framework (T-BORF), to show how can we use trusted cloud computing to attest to an oracle and provide this remote attestation to a blockchain. We offered a trusted way for off-chains communications. For example, using our framework with Hyperledger Fabric, any organization participating in a business network (that plays the role of an oracle) proves the trust state of all the virtual machines where the containers of the peers exist |