RFC 6856
E184118
RFC 6856 is an Internet standards document that updates and extends the Post Office Protocol version 3 (POP3), superseding earlier specifications such as RFC 1939.
All labels observed (1)
| Label | Occurrences |
|---|---|
| RFC 6856 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1631477 — 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: RFC 6856 Context triple: [RFC 1939, obsoletedBy, RFC 6856]
-
A.
RFC 6176
RFC 6176 is an Internet Engineering Task Force (IETF) standard that formally disallows the use of the obsolete and insecure SSL 2.0 protocol in TLS implementations.
-
B.
RFC 6668
RFC 6668 is an Internet Engineering Task Force (IETF) standard that updates the Secure Shell (SSH) protocol to add support for modern elliptic curve cryptography methods.
-
C.
RFC 6557
RFC 6557 is an Internet Engineering Task Force (IETF) document that defines procedures and guidelines for the maintenance and distribution of the IANA time zone database.
-
D.
RFC 6052
RFC 6052 is an IETF standard that defines the IPv6 address format for representing IPv4 addresses, forming a core part of NAT64 and IPv4/IPv6 transition mechanisms.
-
E.
RFC 6146
RFC 6146 is an IETF standard that specifies the behavior and requirements for NAT64, enabling IPv6-only clients to communicate with IPv4 servers through protocol translation.
- 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: RFC 6856 Target entity description: RFC 6856 is an Internet standards document that updates and extends the Post Office Protocol version 3 (POP3), superseding earlier specifications such as RFC 1939.
-
A.
RFC 6176
RFC 6176 is an Internet Engineering Task Force (IETF) standard that formally disallows the use of the obsolete and insecure SSL 2.0 protocol in TLS implementations.
-
B.
RFC 6668
RFC 6668 is an Internet Engineering Task Force (IETF) standard that updates the Secure Shell (SSH) protocol to add support for modern elliptic curve cryptography methods.
-
C.
RFC 6557
RFC 6557 is an Internet Engineering Task Force (IETF) document that defines procedures and guidelines for the maintenance and distribution of the IANA time zone database.
-
D.
RFC 6052
RFC 6052 is an IETF standard that defines the IPv6 address format for representing IPv4 addresses, forming a core part of NAT64 and IPv4/IPv6 transition mechanisms.
-
E.
RFC 6146
RFC 6146 is an IETF standard that specifies the behavior and requirements for NAT64, enabling IPv6-only clients to communicate with IPv4 servers through protocol translation.
- F. None of above. chosen
Statements (39)
| Predicate | Object |
|---|---|
| instanceOf |
Internet standards document
ⓘ
Request for Comments ⓘ |
| addresses | use of non-ASCII characters in POP3 ⓘ |
| appliesTo |
POP3 clients
ⓘ
POP3 servers ⓘ email retrieval protocols ⓘ |
| area | Applications ⓘ |
| category | Standards Track ⓘ |
| defines |
backward compatibility rules for ASCII-only POP3
ⓘ
error handling for UTF-8 in POP3 ⓘ |
| definesExtensionFor | POP3 ⓘ |
| documentSeries |
STD 1
ⓘ
surface form:
STD
|
| focusesOn | internationalization of POP3 ⓘ |
| hasAuthor |
Alexey Melnikov
NERFINISHED
ⓘ
Chris Newman ⓘ |
| hasPageCount | 24 ⓘ |
| identifier | RFC 6856 ⓘ |
| isUpdatedBy | RFC 7888 ⓘ |
| language | English ⓘ |
| obsoletes | RFC 5721 ⓘ |
| obsoletesStatusOf | RFC 5721 ⓘ |
| partOf |
IETF Internet standards process
ⓘ
surface form:
Internet Standards Process
|
| publishedBy | Internet Engineering Task Force ⓘ |
| publishedIn | January 2013 ⓘ |
| publisher | RFC Editor ⓘ |
| specifies |
LANG capability for POP3
ⓘ
UTF8 capability for POP3 ⓘ UTF8 command for POP3 ⓘ behavior for clients that support UTF-8 in POP3 ⓘ behavior for servers that support UTF-8 in POP3 ⓘ |
| standardizes |
UTF-8 support in POP3
ⓘ
UTF8 mailbox names in POP3 ⓘ UTF8 message headers in POP3 ⓘ UTF8 user names in POP3 ⓘ |
| status | Proposed Standard ⓘ |
| stream |
Internet Engineering Task Force
ⓘ
surface form:
IETF
|
| title |
POP3
ⓘ
surface form:
Post Office Protocol Version 3 (POP3) Support for UTF-8
|
| updates | RFC 1939 ⓘ |
| updatesProtocol |
POP3
ⓘ
surface form:
Post Office Protocol version 3
|
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: RFC 6856 Description of subject: RFC 6856 is an Internet standards document that updates and extends the Post Office Protocol version 3 (POP3), superseding earlier specifications such as RFC 1939.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.