Trusted Identifier

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Full Title or Meme

A Trusted Identifier is deployed by Entities that wish to have Identifiers on the internet related to the real-world Identity that enable Recovery in the case of loss of access.


  • It is common by 2020 for all web sites to have a TLS (SSL) certificate so that they can establish a trusted connection between the User Agent (typical the local browser) and the web site.
  • Individuals have Identifiers that must be associated with the real world person even if access to that Identifier is lost for any reason. Health care is one good requirement for a Trusted Identifier.
  • Individuals have rights to Privacy that do not apply to enterprises and so are treated on other wiki pages. This wiki page focus on the Enterprise need for a solid Trusted Identifier.
  • Other wiki pages focus on digital endpoints that are called Web Platform Identifier or Trusted Locations. This page is focused on the link from the digital entity to the real-world entity that the user can trust.
  • Legal entities, like corporations, are not permitted to hide their real world Identity although many jump though many legal loopholes to try to distance themselves from discovery.
  • A software statement is a JSON Web Token (JWT) that asserts metadata values about the client software as a bundle. It is also defined in the UK Open banking standards. Whatever it might have been designed to accomplish, it has been used to identifier the owner of a Web Site endpoint. It will typically include some sort of GUID for the specific instance, but that is often incidental to its real use as a Web Platform Identifier.

The Goal

is to give the user an identifier that can be used to link that web platform to a real-world entity that has consistently shown good behavior in the past.


  • See the wiki page on Trusted Location for a list of the ways that a URL can be spoof to see why it is a bad idea to expect users to get a Trusted Identifier from a URL.
  • EV Certs were introduced to give user's good knowledge of who was behind a web site. They didn't work out as planned as shown on the EV Cert wiki page.


  1. Every real world Entity, be it a legal Entity or a legal name, like a Brand will have one place on the web for making an Identity statement.
  2. That Identity statement MUST be accessed by a URL at a well-known location in a relevant domain.
  3. That Identity statement MAY be accessed at multiple locations that are locale specific for language or other purposes.
  4. That Entity will have a standard URN of the form TID:framework:LUID, where the framework will represent a set of rules that the Entity agrees to follow in all of its online transactions.
    1. For example, in the US health care framework, TID:USHHS:CMS:3KW0-JW2-MY06 could represent an entity in the US under Medicare.

Contents of site at the URL for the Trusted Identifier will be available in machine and human readable form.

N0, Name Typical use User Experience
1 Identifier URN TID:framework:LUID
2 List of required user attributes always needed proof of presence (for example)
3 List of requested user attributes above and beyond the above passport, drivers license
4 Privacy policy URL DOI or URN
5 Terns of use URL DOI or URN
6 Legal Name string(locale) Company name registered with state
7 Legal Address structure(locale) street, city, country
8 Contact information structure(locale) mailto: phone fax, etc.
9 Signature Type fixed list RSA2048 (for example)
10 Signature hex value 134bbead23d908e0a3221bc

It may be that some of these terms (like list of attributes) are better listed on the Trusted Location.


  • The wiki page Trusted Location describes a solution to the problem on not knowing the trustworthiness or intent of a web page that is displayed on a user's browser window.
  • Existing .well-known additions to URLs can be seen, for example, .well-known/tid could be a possible use for getting the Trusted Identifier statement as an HTTP URL. Normally it would use the TID:... as the URL.
  • A Verified Claim can carry some of the same information that might be found in an Identifier Statement.