Blockchains come with inherent privacy challenges. In a basic blockchain, all data is publicly available for all network participants without any encryption. This is a problem in cases where blockchain applications require data privacy. In this paper, we discuss an approach that allows blockchain-based applications to reliably process private data. This approach uses the Camelot Trusted Computing Appliance in an SAP HANA® database environment running on a Dell EMC infrastructure foundation. This approach keeps private data completely off-chain while registering the private data on-chain by storing a hash of it for later verification of its integrity.