53c6dbc2d9
Major slot migrations following slot_fixes.yaml revisions: - TimeSpan: begin_of_the_begin, begin_of_the_end, end_of_the_begin, end_of_the_end - Quantity: has_or_had_measurement_unit with MeasureUnit class - Description: has_or_had_description with Description class - URL, WikiData, Timestamp, Location, Provenance pattern classes New slots for RiC-O compliance: - Temporal: has_or_had_time_interval, calendar_system - Transfer: is_or_was_transferred, has_or_had_policy - Location: starts/ends_or_started/ended_at_location - Provenance: has_or_had_provenance_path, is_or_was_webarchived_at Archive deprecated slots per Rule 53 workflow.
60 lines
1.6 KiB
YAML
60 lines
1.6 KiB
YAML
# calendar_system slot
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# The calendar system used for a timestamp
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#
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# Generation date: 2026-01-15
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# Rule compliance: 38 (slot centralization + semantic URI), 42 (no prefix), 43 (singular noun)
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id: https://nde.nl/ontology/hc/slot/calendar_system
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name: calendar_system_slot
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title: Calendar System Slot
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prefixes:
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linkml: https://w3id.org/linkml/
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hc: https://nde.nl/ontology/hc/
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time: http://www.w3.org/2006/time#
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default_prefix: hc
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imports:
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- linkml:types
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slots:
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calendar_system:
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slot_uri: time:hasTRS
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description: |
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The calendar system for the timestamp.
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**Ontological Alignment**:
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- **Primary** (`slot_uri`): `time:hasTRS` - OWL Time temporal reference system
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**Common Values**:
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- gregorian: Standard Gregorian calendar (default)
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- julian: Julian calendar (historical dates before 1582)
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- hebrew: Hebrew calendar
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- islamic: Islamic (Hijri) calendar
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- chinese: Chinese calendar
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- japanese: Japanese imperial calendar
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**Usage**:
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Defaults to Gregorian if not specified. Important for:
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- Historical documents dated before Gregorian adoption
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- Non-Western heritage institutions
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- Religious calendar dates
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range: string
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required: false
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multivalued: false
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exact_mappings:
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- time:hasTRS
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annotations:
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migration_date: "2026-01-15"
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examples:
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- value: "gregorian"
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description: "Standard Gregorian calendar"
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- value: "julian"
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description: "Julian calendar for pre-1582 dates"
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- value: "islamic"
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description: "Islamic/Hijri calendar"
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