Namespaces as Catalogs
A namespace has the property that all entries should be distinguishable from each other, and ideally, not having too many overlapping names.
Individuals and Agencies
The identities of human users are managed using Authentication and authorization services such as Keycloak.
Products and Services
Products such as books, cars, and other manufactured products are managed by unique namespaces defined in PKC-managed namespaces. Services such as computational services, energy, water, hospitality, and other amenities can also be managed in PKC-managed namespaces. And PKC-managed namespace is defined using a hierarchical data structure, similar to XML or YAML.
Land Ownership
The uniqueness and labeling of land masses.