COMPUTER-IMPLEMENTED METHOD AND SYSTEM FOR CHECKING DATA ANONYMIZATION

Provided is a computer-implemented method and system for checking anonymisation of data. Anonymized data are analysed by means of a smart contract process based on data privacy rules automatically raising a flag in case of an anomaly. The smart contract is governed in a decentralized manner where anodes of distributed database can verify the rules specified in the smart contract and/or assess an anomalous situation. To this end, test data are generated at the data source by applying the data privacy rules to the original data. The test data are checked against the anonymized data and depending on the check result metadata are generated. The metadata are provided to nodes of a distributed database for further verification.