PTP
E6437
PTP is a network-based time synchronization protocol defined by the IEEE 1588 standard that enables highly precise clock alignment across distributed systems.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Precision Time Protocol | 4 |
| PTP canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T73029 — 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: PTP Context triple: [IEEE 1588 Precision Time Protocol standard, alsoKnownAs, PTP]
-
A.
PT
PT is the two-letter ISO 3166-1 alpha-2 country code that uniquely identifies Portugal in international standards and systems.
-
B.
PRT
PRT is the three-letter ISO 3166-1 alpha-3 country code assigned to Portugal.
-
C.
DOT
DOT is the commonly used acronym for the United States Department of Transportation, the federal agency responsible for national transportation policy and infrastructure.
-
D.
NMTI
NMTI is a prestigious United States presidential award that honors individuals, teams, and companies for outstanding contributions to technological innovation and advancement.
-
E.
NMTI
NMTI is an acronym whose specific meaning depends on context, commonly referring to various technical or institutional names.
- 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: PTP Target entity description: PTP is a network-based time synchronization protocol defined by the IEEE 1588 standard that enables highly precise clock alignment across distributed systems.
-
A.
PT
PT is the two-letter ISO 3166-1 alpha-2 country code that uniquely identifies Portugal in international standards and systems.
-
B.
PRT
PRT is the three-letter ISO 3166-1 alpha-3 country code assigned to Portugal.
-
C.
DOT
DOT is the commonly used acronym for the United States Department of Transportation, the federal agency responsible for national transportation policy and infrastructure.
-
D.
NMTI
NMTI is a prestigious United States presidential award that honors individuals, teams, and companies for outstanding contributions to technological innovation and advancement.
-
E.
NMTI
NMTI is an acronym whose specific meaning depends on context, commonly referring to various technical or institutional names.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
network protocol
ⓘ
time synchronization protocol ⓘ |
| abbreviationOf |
Precision Time Protocol
ⓘ
linked to:
PTP
|
| canUseTransport |
Ethernet
ⓘ
linked to:
IEEE 802.3 Ethernet standard
UDP/IP ⓘ |
| competesWith | Network Time Protocol ⓘ |
| definedByStandard |
IEEE 1588
ⓘ
linked to:
IEEE 1588 Precision Time Protocol standard
|
| domain |
computer networking
ⓘ
industrial automation ⓘ power systems ⓘ telecommunications ⓘ |
| enables |
highly precise clock synchronization
ⓘ
time synchronization across distributed systems ⓘ |
| fullName |
Precision Time Protocol
ⓘ
linked to:
PTP
|
| hasProfile |
IEEE 802.1AS
ⓘ
Power Profile ⓘ Telecom Profile ⓘ |
| hasStandardRevision |
IEEE 1588-2008
ⓘ
linked to:
IEEE 1588 Precision Time Protocol standard
IEEE 1588-2019 ⓘ
linked to:
IEEE 1588 Precision Time Protocol standard
|
| introducedInStandardVersion |
IEEE 1588-2002
ⓘ
linked to:
IEEE 1588 Precision Time Protocol standard
|
| isMorePreciseThan | Network Time Protocol ⓘ |
| operatesAt |
OSI layer 2
ⓘ
OSI layer 3 ⓘ |
| requires | clock synchronization messages ⓘ |
| standardNumber |
IEEE 1588
ⓘ
linked to:
IEEE 1588 Precision Time Protocol standard
|
| supports | sub-microsecond time accuracy ⓘ |
| supportsFeature |
boundary clocks
ⓘ
multicast messaging ⓘ transparent clocks ⓘ unicast messaging ⓘ |
| synchronizes | slave clocks to master clock ⓘ |
| timeScale |
Coordinated Universal Time
ⓘ
International Atomic Time ⓘ |
| usedFor |
mobile network synchronization
ⓘ
smart grid synchronization ⓘ synchronization of control systems ⓘ synchronization of measurement systems ⓘ time stamping of events ⓘ |
| uses |
Announce messages
ⓘ
Best Master Clock Algorithm ⓘ
linked to:
IEEE 1588 Precision Time Protocol standard
Delay_Req messages ⓘ Delay_Resp messages ⓘ Follow_Up messages ⓘ Sync messages ⓘ hardware timestamping ⓘ master-slave clock hierarchy ⓘ |
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: PTP Description of subject: PTP is a network-based time synchronization protocol defined by the IEEE 1588 standard that enables highly precise clock alignment across distributed systems.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: PTP
linked to: PTP
linked to: PTP