at time

• CURIE: gmeow:atTime
• IRI: https://blackcatinformatics.ca/gmeow/atTime
• Category: property
• Defined by: gmeow:slices/temporal
• Box roles: RBox role (What is this?)

The instant at which a point-like event or observation occurred.

Structure

Property shape: datatype property; ? -> xsd:dateTime

Practical Pattern

Use gmeow:atTime from ? to xsd:dateTime when the relationship itself belongs in the native GMEOW graph.

Example Snippets

These snippets are generated from canonical slice examples and trimmed to the Turtle blocks where this term appears.

Agent Trajectory

• Source: slices/extensions/agentic/examples/agent-trajectory.ttl
• Examples catalog: open in catalog#example-slices-extensions-agentic-examples-agent-trajectory

@prefix gmeow: <https://blackcatinformatics.ca/gmeow/> .
@prefix ex:    <https://blackcatinformatics.ca/gmeow/examples/> .
@prefix rdfs:  <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd:   <http://www.w3.org/2001/XMLSchema#> .



# SPDX-FileCopyrightText: 2026 Blackcat Informatics® Inc. <paudley@blackcatinformatics.ca>
# SPDX-License-Identifier: CC-BY-4.0
#
# Worked example: one agent turn as auditable provenance — a model
# invocation requests two tool calls; the entity the second call produced
# links BACK via gmeow:wasGeneratedBy (P5: no forward output property).
# Large payloads ride as content digest literals (the verbatim-or-digest
# doctrine); ordering is temporal (gmeow:atTime), not a TBox link.

ex:invocation-7 a gmeow:ModelInvocation ;
    rdfs:label "turn 7 model invocation"@en ;
    gmeow:usedModel ex:assistant ;
    gmeow:samplingTemperature "0.2"^^xsd:decimal ;
    gmeow:atTime "2026-06-12T17:03:10Z"^^xsd:dateTime ;
    gmeow:eventTemporalFrame gmeow:temporalFrameUTCGregorian .

Grounded Claim

• Source: slices/core/ai/examples/grounded-claim.ttl
• Examples catalog: open in catalog#example-slices-core-ai-examples-grounded-claim

ex:invocation-19 a gmeow:ModelInvocation ;
    gmeow:usedModel ex:assistant ;
    gmeow:hasPrompt ex:prompt-extract ;
    gmeow:samplingTemperature 0.0 ;
    gmeow:atTime "2026-05-15T10:00:00Z"^^xsd:dateTime ;
    gmeow:eventTemporalFrame gmeow:temporalFrameUTCGregorian .

Usage Advice

Use when

• Use to stamp a zero-duration occurrence — an event, a reading, a snapshot observation — with a single crisp dateTime, when no interval boundary is involved.

Avoid when

• Avoid for a bounded span (use a gmeow:TimeInterval) and for the time a claim was asserted or recorded (use the statement-layer clocks gmeow:assertedAt / gmeow:recordedNoLaterThan); domain-free, so it carries no implied subject type.

How to use

• Write a full xsd:dateTime (P3, never xsd:date) interpreted in the subject's temporal frame; for a point that needs its own frame or EDTF expression, model a gmeow:Instant instead.

Examples

• ex:doorbellEvent gmeow:atTime "2026-06-15T08:14:00Z"^^xsd:dateTime.