open and expansive data will also serve to estimate population changes and density variations at intracity levels these registries inform land consumption rates relevant to this indicator for example the egovernment domain within the regulatory programme development area at uncefact is developing two white papers aimed at reviewing both the technical applications of blockchain to uncefact deliverables on data exchange and another on usecases in a wide variety of areas of application in which this technology could provide opportunities for efficient effective and trusted systems several countries such as the netherlands india kenya and switzerland have already begun piloting blockchainbased land registry systems which are expected to have a significant impact on promoting inclusive and integrated urbanization through the principles of immutability of records and system decentralization participatory transparent accountable urban planning and management and the creation of an enabling environment are important steps in assessing how national and local governments involve people communities and organizations in implementing monitoring and evaluating sdgs policies and programmes such as urban planning