A reform group suggests the UK would benefit from exploring modern identity systems.Think tank Reform argues in a new study that blockchain technology could be used to revamp the UK government's digital identity assurance efforts.Biometrics such as a face scan or fingerprint could add an additional layer of security, it said.Reform said the government digital service's digital identity management efforts had stalled with Gov.uk Verify, saying uptake has been "slow" in part because the information it provides is insufficient for some transactions, reported Silicon UK."A blockchain network could be built across several departments and would act as a thin layer on top of current databases," Reform wrote. "This layer would enable citizens to view their data, via an identity app on their smartphone, and grant government access to it."Automated updates would ensure databases contain current information."This means moving from siloed departments holding different and even contradictory versions of a person's identity to a user-stored identity, in an identity app on a smartphone," said the report.