OpenID 2.0
E700379
OpenID 2.0 is an earlier decentralized authentication protocol that allowed users to sign into multiple websites using a single identity URL, later superseded by OpenID Connect.
All labels observed (1)
| Label | Occurrences |
|---|---|
| OpenID 2.0 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7934245 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: OpenID 2.0 Context triple: [OpenID Connect, replaces, OpenID 2.0]
-
A.
OpenID Connect
OpenID Connect is an identity layer built on top of OAuth 2.0 that enables secure user authentication and single sign-on across applications.
-
B.
SAML
SAML (Security Assertion Markup Language) is an XML-based open standard for exchanging authentication and authorization data between identity providers and service providers, commonly used for single sign-on (SSO) in web applications.
-
C.
OAuth 2.0
OAuth 2.0 is an industry-standard authorization framework that enables applications to obtain limited access to user resources on HTTP services without exposing user credentials.
-
D.
RFC 6749
RFC 6749 is the IETF specification that defines the OAuth 2.0 authorization framework used for secure delegated access to web resources.
-
E.
OAuth 1.0
OAuth 1.0 is an older open standard authorization protocol that enabled secure delegated access to web resources without sharing user credentials, and has since been superseded by OAuth 2.0.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: OpenID 2.0 Target entity description: OpenID 2.0 is an earlier decentralized authentication protocol that allowed users to sign into multiple websites using a single identity URL, later superseded by OpenID Connect.
-
A.
OpenID Connect
OpenID Connect is an identity layer built on top of OAuth 2.0 that enables secure user authentication and single sign-on across applications.
-
B.
SAML
SAML (Security Assertion Markup Language) is an XML-based open standard for exchanging authentication and authorization data between identity providers and service providers, commonly used for single sign-on (SSO) in web applications.
-
C.
OAuth 2.0
OAuth 2.0 is an industry-standard authorization framework that enables applications to obtain limited access to user resources on HTTP services without exposing user credentials.
-
D.
RFC 5849
RFC 5849 is the Internet standard that originally defined the OAuth 1.0 protocol for secure delegated authorization before being superseded by OAuth 2.0 in RFC 6749.
-
E.
RFC 6749
RFC 6749 is the IETF specification that defines the OAuth 2.0 authorization framework used for secure delegated access to web resources.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
authentication protocol
ⓘ
decentralized authentication protocol ⓘ single sign-on protocol ⓘ |
| authenticationModel |
browser-based authentication
ⓘ
redirect-based authentication ⓘ |
| category |
federated identity protocol
ⓘ
web authentication standard ⓘ |
| component |
end user
ⓘ
identity provider ⓘ relying party ⓘ |
| defines |
OpenID authentication request
ⓘ
OpenID authentication response ⓘ Simple Registration (SReg) extension NERFINISHED ⓘ association between relying party and identity provider ⓘ attribute exchange extensions ⓘ discovery process for user identifiers ⓘ |
| designGoal |
decentralization
ⓘ
interoperability between identity providers and relying parties ⓘ user-controlled identity ⓘ |
| developer | OpenID Foundation NERFINISHED ⓘ |
| follows | OpenID 1.0 NERFINISHED ⓘ |
| governedBy | OpenID Foundation policies NERFINISHED ⓘ |
| identifierType |
OP-Local identifier
ⓘ
claimed identifier ⓘ |
| interoperatesWith |
multiple independent identity providers
ⓘ
multiple relying party websites ⓘ |
| partOf | OpenID family of protocols ⓘ |
| role |
allows users to authenticate using a single identity URL
ⓘ
delegates authentication to an identity provider ⓘ enables single sign-on across multiple websites ⓘ |
| securityProperty |
does not natively define OAuth-style authorization
ⓘ
primarily designed for authentication, not API access ⓘ |
| standardizedIn | OpenID Authentication 2.0 specification NERFINISHED ⓘ |
| status | superseded ⓘ |
| successor | OpenID Connect 1.0 NERFINISHED ⓘ |
| supersededBy | OpenID Connect NERFINISHED ⓘ |
| supports |
XRI identifiers
ⓘ
identity URLs ⓘ |
| supportsExtension |
Attribute Exchange (AX)
NERFINISHED
ⓘ
Simple Registration (SReg) NERFINISHED ⓘ |
| transportBinding |
HTML form POST
ⓘ
HTTP redirect ⓘ |
| uses |
HTTP
ⓘ
URL identifiers ⓘ XRDS discovery ⓘ Yadis discovery NERFINISHED ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: OpenID 2.0 Description of subject: OpenID 2.0 is an earlier decentralized authentication protocol that allowed users to sign into multiple websites using a single identity URL, later superseded by OpenID Connect.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.