Abstract: The present disclosure relates to monitoring processes. A processor creates a numerical representation of a nominal operation of the process. The processor then encrypts the numerical representation using homomorphic encryption to determine an encrypted numerical representation that blocks access to the numerical representation but allows calculations on the numerical representations. The processor proceeds by creating smart contracts on a blockchain platform using the encrypted numerical representation as a first input to the calculations of the smart contract. Next, the processor attempts execution of the smart contract using the current operation of the process as a second input to the calculations of the smart contract. The execution of the smart contract generates an output result by performing the calculations on the encrypted numerical representations.

Abstract: The present disclosure relates to monitoring processes. A processor creates a numerical representation of a nominal operation of the process. The processor then encrypts the numerical representation using homomorphic encryption to determine an encrypted numerical representation that blocks access to the numerical representation but allows calculations on the numerical representations. The processor proceeds by creating smart contracts on a blockchain platform using the encrypted numerical representation as a first input to the calculations of the smart contract. Next, the processor attempts execution of the smart contract using the current operation of the process as a second input to the calculations of the smart contract. The execution of the smart contract generates an output result by performing the calculations on the encrypted numerical representations.

Abstract: Methods and apparatus for utilising a distributed ledger, such as the Ethereum blockchain, to monitor and execute a process instance (170) between parties that may not trust each other. The proposed methods and apparatus integrate blockchain into the choreography of processes in such a way that no central authority is needed, but trust maintained. The combination of a set of components (a translator 160, a process instance 170 and a trigger/interface 120, 130) allows for monitoring or coordination of business processes on the blockchain (150) and off the blockchain (140).