Web Platform Identifier

Full Title or Meme

A Web Platform Identifier is a Trusted Identifier deployed by Entities that wish to project trust to Users of the web either individuals or enterprises.

Context

• As a part of having Trusted Identifiers in Cyberspace a series of Framework Profiles have been created to allow digital Entities to give users a statement about the policies that they support.
• 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.
• 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.
• A Web App Manifest has been defined to enable a web page to be displayed like an app on a device with a compliant browser.

Problems

• 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.

Solutions

The browser (user agent) manufacturers have been trying to identifier components that show on a web page that are not from same origin or site to which the user navigated. These ideas are similar to the concept of web platform as used here.

1. Every real world Entity, be it a legal Entity or a legal name, like a Brand will have one or more places 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.

References

• 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.