was derived from

• CURIE: gmeow:wasDerivedFrom
• IRI: https://blackcatinformatics.ca/gmeow/wasDerivedFrom
• Category: property
• Defined by: gmeow:slices/provenance

Relates a derived thing to the thing it was derived from — e.g. a text extraction, summary, or embedding to its source; a commit to its parent commit; a trajectory to its sample stream. The derivation's confidence and generating agent are recorded with gmeow:confidence and gmeow:wasGeneratedBy. Domain-free so that events, endurants, and information objects may all participate in derivation chains.

Structure

Property shape: object property

Practical Pattern

Use gmeow:wasDerivedFrom when the definition matches the source fact. Prefer a narrower GMEOW term when one exists, and keep projection concerns in the mapping layer.

Example Snippets

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

Import Lineage

• Source: slices/core/provenance/examples/import-lineage.ttl
• Examples catalog: open in catalog#example-slices-core-provenance-examples-import-lineage

# SPDX-FileCopyrightText: 2026 Blackcat Informatics® Inc. <paudley@blackcatinformatics.ca>
# SPDX-License-Identifier: CC-BY-4.0
#
# Worked example: ingest lineage on the PROV triad. A machine-generated
# summary records WHERE it came from (gmeow:wasDerivedFrom → the source), HOW it
# was produced (gmeow:wasGeneratedBy → an Activity), and WHO ran it
# (gmeow:wasAttributedTo → an Agent). The importer is a gmeow:SoftwareAgent that
# self-records its own run — the producer of the provenance is inside it.
# (How much to trust the derivation is gmeow:confidence — an annotation on the
# derivation STATEMENT, carried in the RDF-1.2 statement layer rather than as an
# A-box property on the individual, so it is out of scope for this flat example.)
@prefix gmeow: <https://blackcatinformatics.ca/gmeow/> .
@prefix ex:    <https://blackcatinformatics.ca/gmeow/examples/provenance/> .
@prefix xsd:   <http://www.w3.org/2001/XMLSchema#> .

# --- The derived artefact: WHERE from, HOW made, and WHO by.
ex:abstract a gmeow:Summary ;
    gmeow:wasDerivedFrom  ex:sourcePaper ;
    gmeow:wasGeneratedBy  ex:import ;
    gmeow:wasAttributedTo ex:importer .

Lillith Pipeline

• Source: slices/extensions/graphrag/examples/lillith-pipeline.ttl
• Examples catalog: open in catalog#example-slices-extensions-graphrag-examples-lillith-pipeline

ex:embedding-7 a gmeow:Embedding ;
    gmeow:embeddingOf ex:chunk-7 ;
    gmeow:embeddingModel ex:embedder ;
    gmeow:embeddingDimensions "1024"^^xsd:positiveInteger ;
    gmeow:distanceMetric gmeow:distanceMetricCosine ;
    gmeow:vectorRef "s3://lillith/vectors/chunk-7"^^xsd:anyURI ;
    gmeow:wasGeneratedBy ex:embed-run ;
    gmeow:wasDerivedFrom ex:chunk-7 ;
    gmeow:contentDigest "blake3:1111222233334444555566667777888899990000aaaabbbbccccddddeeeeffff" .

ex:desc-mara a gmeow:ExtractedEntity ;
    rdfs:label "extracted: 'Mara' (maintainer?)"@en ;
    gmeow:contentDigest "blake3:3333444455556666777788889999000011112222aaaabbbbccccddddeeeeff11" ;
    gmeow:wasDerivedFrom ex:chunk-7 ;
    gmeow:wasGeneratedBy ex:invocation-44 .

Common Companion Terms

gmeow:MeasuredValue, gmeow:Quantity, gmeow:ScalarQuantity, gmeow:assertedAt, gmeow:confidence, gmeow:recordedNoLaterThan, gmeow:wasAttributedTo

Cross-Cutting Concerns

provenance and evidence

External Equivalences

Equivalent or closely aligned targets: prov

Linkages

Generated from the canonical mapping DSL. SSSOM files are the generated public interchange form for term equivalences.

Term Equivalences

Usage Advice

Use when

• Use to link a derived artifact to its source — a summary, text extraction, or embedding to the document it came from, a commit to its parent — building the derivation chain that lets consumers trace a value back to its origin.

Avoid when

• Avoid for the activity that did the deriving (use gmeow:wasGeneratedBy → gmeow:Activity) and for mere topical aboutness (use gmeow:hasAboutness); derivation asserts genealogical descent, not subject matter.

How to use

• Point the derived thing at its source; carry the derivation's gmeow:confidence and lossiness on the statement layer (a summary is a lossy projection of its source), and attach gmeow:wasGeneratedBy to name the generating activity and, through it, the agent.

Examples

• ex:summary gmeow:wasDerivedFrom ex:report.