# Precision Time Protocol **Entity class:** Technical standard or protocol **Domain:** Distributed Systems / Time Synchronization **Doc Type:** Technical Standard Concept **Maturity:** Established **Related:** [[DICOM Real-Time Video]], [[SMPTE ST 2110]], [[Multimodal Neural Data Fusion]] --- ## Definition **Precision Time Protocol (PTP)** synchronizes clocks across networked devices to a shared time reference with much greater precision than ordinary wall-clock synchronization. Precision depends on network topology, hardware timestamping, clock quality, configuration, and profile. ## Neural-interface role PTP can preserve the temporal relationship among stimulus, video, audio, device events, and neural responses. Shared clock precision is a precondition for valid multimodal fusion, not a guarantee that the streams have been semantically aligned. ## Neurotech cluster route **Collection:** [[collections/Neurotech|Neurotech]] **Source articles:** [[articles/The Architecture of Continuity and Emerging Neuroinformatics Standards|The Architecture of Continuity and Emerging Neuroinformatics Standards]] ## Relationships [[wiki/Precision Time Protocol|Precision Time Protocol]] is related to [[collections/Neurotech|Neurotech]] through [[articles/The Architecture of Continuity and Emerging Neuroinformatics Standards|The Architecture of Continuity and Emerging Neuroinformatics Standards]]. <!-- BEGIN HUMANIZED RELATIONSHIPS 2026-09-11 --> This entry's documented connections are expressed in its definition and related-work routes, with provenance retained in the source-linked material. <!-- END HUMANIZED RELATIONSHIPS 2026-09-11 --> ## Related Work in the Corpus <!-- BEGIN HUMANIZED CORPUS ROUTES 2026-09-11 --> - In [[articles/The Architecture of Continuity and Emerging Neuroinformatics Standards|The Architecture of Continuity and Emerging Neuroinformatics Standards]], ****4\. Real-Time Communication and Clinical Imaging Infrastructure**** provides the narrative context for **Precision Time Protocol**: Concept route: DICOM · DICOM Working Group 32 · DICOM-RTV · RTP · SMPTE ST 2110 · PTP · essence flows · rendition metadata. <!-- END HUMANIZED CORPUS ROUTES 2026-09-11 -->