ITU-T Recommendation X.681
E848261
ITU-T Recommendation X.681 is an international standard that defines the notation and rules for specifying ASN.1 object identifiers and related constraints in telecommunications and information technology systems.
All labels observed (2)
| Label | Occurrences |
|---|---|
| ITU-T Recommendation X.681 canonical | 4 |
| X.681 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10168047 — 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: ITU-T Recommendation X.681 Context triple: [ISO/IEC 8824, supersededBy, ITU-T Recommendation X.681]
-
A.
ITU-T Recommendation X.682
ITU-T Recommendation X.682 is an international standard that specifies the syntax and rules for defining ASN.1 notation using the ASN.1 notation itself (ASN.1 meta-syntax) within the X.680 series.
-
B.
ITU-T X.680 series
The ITU-T X.680 series is a set of international standards that formally define the syntax and structure of the Abstract Syntax Notation One (ASN.1) used for specifying data in telecommunications and computer networking.
-
C.
ITU-T X.690 series
The ITU-T X.690 series is a set of international standards that define encoding rules for ASN.1 data structures, including BER, CER, and DER.
-
D.
ISO/IEC 8652
ISO/IEC 8652 is the international standard that formally defines the Ada programming language, including its syntax, semantics, and core features.
-
E.
ITU-T Recommendation G.8261.1
ITU-T Recommendation G.8261.1 is a telecommunications standard that specifies enhanced timing and synchronization aspects for packet-based networks to support accurate frequency and phase delivery.
- 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: ITU-T Recommendation X.681 Target entity description: ITU-T Recommendation X.681 is an international standard that defines the notation and rules for specifying ASN.1 object identifiers and related constraints in telecommunications and information technology systems.
-
A.
ITU-T Recommendation X.682
ITU-T Recommendation X.682 is an international standard that specifies the syntax and rules for defining ASN.1 notation using the ASN.1 notation itself (ASN.1 meta-syntax) within the X.680 series.
-
B.
ITU-T X.680 series
The ITU-T X.680 series is a set of international standards that formally define the syntax and structure of the Abstract Syntax Notation One (ASN.1) used for specifying data in telecommunications and computer networking.
-
C.
ITU-T X.690 series
The ITU-T X.690 series is a set of international standards that define encoding rules for ASN.1 data structures, including BER, CER, and DER.
-
D.
ISO/IEC 8652
ISO/IEC 8652 is the international standard that formally defines the Ada programming language, including its syntax, semantics, and core features.
-
E.
ITU-T Recommendation G.8261.1
ITU-T Recommendation G.8261.1 is a telecommunications standard that specifies enhanced timing and synchronization aspects for packet-based networks to support accurate frequency and phase delivery.
- F. None of above. chosen
Statements (39)
| Predicate | Object |
|---|---|
| instanceOf |
ITU-T Recommendation
ⓘ
international standard ⓘ technical standard ⓘ |
| abbreviation |
X.681
ⓘ
linked to:
ITU-T Recommendation X.681
|
| appliesTo |
ASN.1 specifications
ⓘ
information technology systems ⓘ telecommunication systems ⓘ |
| belongsToDomain |
data representation
ⓘ
network protocols ⓘ |
| concerns |
identification of objects in ASN.1
ⓘ
naming of objects in ASN.1 ⓘ registration of ASN.1 object identifiers ⓘ |
| defines |
constraints for ASN.1 object identifiers
ⓘ
notation for ASN.1 object identifiers ⓘ rules for ASN.1 object identifier arcs ⓘ rules for ASN.1 object identifier registration ⓘ rules for ASN.1 object identifier values ⓘ rules for ASN.1 object identifiers ⓘ |
| field |
information technology
ⓘ
telecommunications ⓘ |
| governs |
definition of ASN.1 object identifier values
ⓘ
use of ASN.1 object identifier constraints ⓘ |
| hasLanguage | English ⓘ |
| partOfSeries |
ASN.1 standards
ⓘ
ITU-T X-series ⓘ
linked to:
ITU-T X-series recommendations
|
| publishedBy |
ITU Telecommunication Standardization Sector
ⓘ
International Telecommunication Union ⓘ |
| relatedStandard |
ITU-T Recommendation X.680
ⓘ
linked to:
ITU-T X.680 series
ITU-T Recommendation X.682 ⓘ ITU-T Recommendation X.683 ⓘ |
| relatedTo |
Abstract Syntax Notation One
ⓘ
linked to:
ASN.1
|
| specifies |
semantics for ASN.1 object identifiers
ⓘ
syntax for ASN.1 object identifiers ⓘ |
| standardType |
data description standard
ⓘ
telecommunication standard ⓘ |
| usedFor |
interoperability of IT systems
ⓘ
interoperability of telecommunication protocols ⓘ |
| usesConcept |
ASN.1 constraint
ⓘ
object identifier ⓘ |
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: ITU-T Recommendation X.681 Description of subject: ITU-T Recommendation X.681 is an international standard that defines the notation and rules for specifying ASN.1 object identifiers and related constraints in telecommunications and information technology systems.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: ITU-T Recommendation X.681