Secure, permanent URLs for your Web application that will stand the test of time.
Web applications that deal with Linked Data often need to specify and use URLs that are very stable. They utilize services such as this one to ensure that applications using their URLs will always be re-directed to a working website. This website operates like a switchboard, connecting requests for information with the true location of the information on the Web. The switchboard can be reconfigured to point to a new location if the old location stops working.
A growing group of organizations have pledged responsibility as a consortium to ensure the operation of this website. These organizations are:
They are responsible for all administrative tasks associated with operating the service. The social contract between these organizations gives each of them full access to all information required to maintain and operate the website. The agreement is setup such that a number of these companies could fail, lose interest, or become unavailable for long periods of time without negatively affecting the operation of the site.
To join the management consortium, please make yourself known to the W3ID comminuty via participation in the mailing list (see the W3ID Community section below) and then, if you are still keen to join, please submit an Issue to the GitHub Issue Tracker with the title Seeking to join the W3ID Consortium and include your details.
This website operates in HTTPS-only mode to ensure end-to-end security. This means that it may be used for Linked Data applications that require high levels of security such as those found in the financial, medical, and public infrastructure sectors.
All identifiers associated with this website are intended to be around for as long as the Web is around. This means decades, if not centuries. If the final destination for popular identifiers used by this service fail in such a way as to be a major inconvenience or danger to the Web, the community will mirror the information for the popular identifier and setup a working redirect to restore service to the rest of the Web.
If you would like to add or update a permanent identifier of the form
https://w3id.org/..., the preferred procedure is to perform the
The maintainers of this system will then act on that Pull Request and merge it into this system's content. You will then be able to see your changes in the repository and via resolution of the identifier you created or edited.
If the terms Fork and Pull Request are new to you, you need to familiarize yourself with the Git version control system and GitHub, the platform used to host this system. Please see this documentation:
Please help out the maintainers of the service with the following in your Pull Requests:
You can also send a request to add a redirect to the email@example.com mailing list. Make sure to include the URL that you want on w3id.org, the URL that you want to redirect to, and the HTTP code that you want to use when redirecting. An administrator will then create the redirect for you.
404 Not Found
500 Server Error.
Note that this only checks URIs that are listed in the `README.md` files.
Travis might comment on your Pull Request if this test reveals an error. Check its output logs to ensure the errors are not caused by your modification.
There is no official policy on identifier names. The current practice
is to claim a top-level directory name and add project specific second level
identifiers. For instance,
Shared top-levels are also available such as
https://w3id.org/people/PERSON-ID. There is no official
list or policy for reserved identifiers. However, the administrators may deny
requests for identifiers that are too generic, could cause confusion, are
inappropriate or offensive, or otherwise may be needed for future service
If you wish to engage the community in discussion about this service for your Web application, please send an e-mail to the firstname.lastname@example.org mailing list.
The letters 'w3' in the domain name for this site stand for "World Wide Web". Other than hosting the software for the Permanent Identifier Community Group, the "World Wide Web Consortium" (W3C) is not involved in the support or management of this website in any way.