The Registration Department has started shifting various registered documents to the blockchain system as part of a move to protect these from tampering.
A senior official of the Registration Department said at present, the registered documents, which date back to 1865, are digitised and stored under STAR 2.0 software - upgraded from STAR 1.0 five years ago.
The software, which has been outsourced to a private information technology company, is being used under Starlink system, with digitised files maintained by the same company through a centralised server.
