vCard
E553142
Internet standard
contact information interchange format
electronic business card format
file format
vCard is a standardized file format for electronic business cards that stores and exchanges contact information such as names, phone numbers, addresses, and email details across different applications and devices.
All labels observed (5)
| Label | Occurrences |
|---|---|
| vCard canonical | 11 |
| Virtual Contact File | 1 |
| XEP-0054: vcard-temp | 1 |
| vCard 3.0 | 1 |
| vCard 4.0 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5895305 — 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: vCard Context triple: [Thunderbird, supportsStandard, vCard]
-
A.
Cardfile
Cardfile is a simple card-based personal information manager included with early versions of Microsoft Windows for storing and organizing small text notes.
-
B.
vCalendar
vCalendar is an early electronic calendaring and scheduling format that served as a predecessor to the more widely adopted iCalendar standard.
-
C.
CardDAV
CardDAV is an open standard protocol that enables remote access, synchronization, and management of contact data over the Web using HTTP and WebDAV.
-
D.
Kontakte
Kontakte is an influential 1958–60 electroacoustic composition by Karlheinz Stockhausen that explores spatialization and the integration of electronic and instrumental sounds.
-
E.
.vc
.vc is the country code top-level domain (ccTLD) assigned to Saint Vincent and the Grenadines, often also used creatively for various commercial and personal websites.
- 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: vCard Target entity description: vCard is a standardized file format for electronic business cards that stores and exchanges contact information such as names, phone numbers, addresses, and email details across different applications and devices.
-
A.
Cardfile
Cardfile is a simple card-based personal information manager included with early versions of Microsoft Windows for storing and organizing small text notes.
-
B.
vCalendar
vCalendar is an early electronic calendaring and scheduling format that served as a predecessor to the more widely adopted iCalendar standard.
-
C.
CardDAV
CardDAV is an open standard protocol that enables remote access, synchronization, and management of contact data over the Web using HTTP and WebDAV.
-
D.
Kontakte
Kontakte is an influential 1958–60 electroacoustic composition by Karlheinz Stockhausen that explores spatialization and the integration of electronic and instrumental sounds.
-
E.
.vc
.vc is the country code top-level domain (ccTLD) assigned to Saint Vincent and the Grenadines, often also used creatively for various commercial and personal websites.
- F. None of above. chosen
Statements (57)
| Predicate | Object |
|---|---|
| instanceOf |
Internet standard
ⓘ
contact information interchange format ⓘ electronic business card format ⓘ file format ⓘ |
| abbreviation | VCF ⓘ |
| compatibleWith |
address book applications
ⓘ
customer relationship management systems ⓘ email clients ⓘ mobile phone contact managers ⓘ |
| definedIn |
RFC 2426
ⓘ
RFC 6350 ⓘ |
| fileExtension | .vcf ⓘ |
| fullName |
Virtual Contact File
ⓘ
linked to:
vCard
|
| hasProperty |
ADR
ⓘ
BDAY ⓘ EMAIL ⓘ FN ⓘ GEO ⓘ IMPP ⓘ N ⓘ ORG ⓘ PHOTO ⓘ TEL ⓘ TITLE ⓘ URL ⓘ |
| introducedInRFC | RFC 2426 ⓘ |
| latestVersion | 4.0 ⓘ |
| mediaType | text/vcard ⓘ |
| primaryUse |
exchanging contact information
ⓘ
storing contact information ⓘ |
| standardizedBy |
IETF
ⓘ
linked to:
Internet Engineering Task Force
Internet Engineering Task Force ⓘ |
| stores |
URLs
ⓘ
email addresses ⓘ geographic coordinates ⓘ instant messaging identifiers ⓘ job titles ⓘ logos ⓘ names ⓘ organization names ⓘ photos ⓘ postal addresses ⓘ telephone numbers ⓘ |
| supports |
character encoding UTF-8
ⓘ
extensions via X- properties ⓘ internationalized text ⓘ multiple contacts per file ⓘ |
| supportsSerialization |
QR code encoding
ⓘ
plain text ⓘ |
| updatedInRFC | RFC 6350 ⓘ |
| usedFor |
backing up contact lists
ⓘ
exporting contacts ⓘ importing contacts ⓘ sharing contacts between devices ⓘ |
| version |
2.1
ⓘ
3.0 ⓘ 4.0 ⓘ |
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: vCard Description of subject: vCard is a standardized file format for electronic business cards that stores and exchanges contact information such as names, phone numbers, addresses, and email details across different applications and devices.
Referenced by (15)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: vCard
linked to: vCard
linked to: vCard