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 e-Government Domain, within the Regulatory Programme Development Area at UN/CEFACT, is developing two white papers aimed at reviewing both the technical applications of Blockchain to UN/CEFACT deliverables on data exchange, and another on use-cases 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 blockchain-based 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.