Page History

...

https://handle.net/10.99999/12345

           https://purl.org/99999/12345

https://<various>/urn:99999:12345

...

1. the protocol (https://) plus a hostname,
2. just for ARK and URN, there's also a label ("ark:" or "urn:"),
3. the name assigning authority (99999, 10.99999, or purl.org/99999), which is the organization that created a particular identifier,
4. and finally, the name, or local identifier, that it assigned (12345). 

...