# PSKA Property Definitions
Source of truth for frontmatter properties used by PSKA note types (summary, claim, concept, MOC). The summary-note skill reads this note before creating or editing notes, so edits here take effect on the next batch run.
## Core properties
| Property | Type | Used by | Definition |
| ---------- | ------------- | ------- | ----------------------------------------------------------------------------------------------------------- |
| `tags` | list | all | Use like Dublin Core `type` property, but use the values defined in [[PSKA Tag Taxonomy]] |
| `related` | list of links | all | What the resource is *about*. Use like Dublin Core `subject` property. Wikilink to a concept or topic note. |
| `created` | date | all | Date the note was created |
| `modified` | date | all | Date the note was last edited (managed by Obsidian plugin; leave unset on note creation) |
| `publish` | boolean | all | Whether the note is published to stumax.info. (Defaults to `false`) |
## Provenance properties
| Property | Type | Used by | Definition |
| ------------------ | ---- | -------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| `sourceSystem` | link | summary | System the source document came from. Link to a concept note. Valid values defined in [[PSKA Tag Taxonomy]] |
| `sourceIdentifier` | url | summary | The url of the resource at the source. (e.g., for Readwise reader, the resource's readwise url) |
| `creator` | link | all | Person (or persons) identified as author or other creator of the work; wikilink to Person record in Obsidian vault. |
| `contributor` | link | summary | person (or persons) identified as contributing substantively to the work; wikilink to Person record in Obsidian vault |
| `identifier` | url | all | An appropriate identifier for the work, such as an ISBN, DOI, URN, etc. Use a URL if no other appropriate identifier exists. <br>For Concept notes, links to the official website or to a Wikipedia page are acceptable. |
| `references` | list | all | A work(s) directly referenced from the resource; wikilink(s) to a resource in Obsidian vault. |
| `processed` | date | summary | Date the document was processed into a summary note (blank = unprocessed; drives the work queue) |
| `source` | url | summary, claim | Summary: Link to the original source URL<br>Claim: Link to the summary note, if applicable |
| `mediaType` | text | summary | The source document’s media type. Valid values defined in [[PSKA Tag Taxonomy]] |
## Relationship properties (v0.1 vocabulary)
Typed relations. Definitions inherited from [[PSKA Relationship Vocabulary]] — see that note for nuance between similar properties.
| Property | Type | Used by | Definition |
| -------------- | ---- | -------------- | ------------------------------------------------------------------------- |
| `influencedBy` | link | claim | This claim was shaped by the person/article/idea in the linked note |
| `evidenceFor` | link | claim | This claim provides evidence for the linked claim note |
| `evolvedFrom` | link | claim | This claim replaced or developed from the linked claim note |
| `appliedIn` | link | claim, concept | This idea was applied in the linked claim note |
| `subtypeOf` | link | claim, concept | This concept is a specialization of the linked concept |
| `tensionWith` | link | claim, concept | This claim conflicts or is in tension with the linked claim note |
| `supersedes` | link | claim | This note replaces the linked (older) note |
| `supersededBy` | link | claim | Inverse of `supersedes`; this claim is replaced by that linked claim note |
## Notes
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