{
    "folio": {
        "code": "euro/15501",
        "dataset_key": "euro/15501",
        "label": "euro/15501",
        "row_count": 20684,
        "description": null
    },
    "cores": [
        {
            "code": "obj",
            "label": null,
            "row_count": 19897
        },
        {
            "code": "per",
            "label": null,
            "row_count": 787
        }
    ],
    "dtoTables": [
        {
            "id": "euro/15501:dto_object",
            "name": "dto_object",
            "kind": "dto",
            "core_code": "obj",
            "dto_type": "object",
            "label": "Artifact",
            "description": "Three-dimensional physical objects and artifacts that do not fit a more specific type: tools, vessels, garments, specimens, etc.",
            "row_count": 19897
        },
        {
            "id": "euro/15501:dto_per_org",
            "name": "dto_per_org",
            "kind": "dto",
            "core_code": "per",
            "dto_type": "org",
            "label": "Org",
            "description": "Concrete BaseItemDto for subjects whose content type is unknown or mixed.\nUse when no domain-specific DTO subclass applies.\n/",
            "row_count": 787
        }
    ],
    "views": [
        "dto_object",
        "dto_per_org"
    ],
    "generatedAt": "2026-10-07T21:27:23+00:00",
    "metadata": {
        "archivePreparedAt": "2026-10-07T21:27:23+00:00",
        "schema": {
            "tables": 4,
            "properties": 26
        },
        "views": {
            "views": 2,
            "linkViews": 1
        }
    }
}

# Folio euro/15501

euro/15501

- Dataset key: `euro/15501`
- Rows: 20,684
- Cores: 2
- Observed DTO tables: 2

## Cores

| Core | Label | Rows |
| --- | --- | ---: |
| `obj` | obj | 19,897 |
| `per` | per | 787 |

# Observed Schema

## `dto_object`

- Core: `obj`
- DTO type: `object`
- Rows: 19,897

Three-dimensional physical objects and artifacts that do not fit a more specific type: tools, vessels, garments, specimens, etc.

| Field | Type | Flags | Description |
| --- | --- | --- | --- |
| `id` | `?string` |  |  |
| `sourceUrl` | `?string` |  | The citable/reader-facing page for this record (e.g. a museum's public object page). |
| `url` | `?string` |  | The item's own canonical source URI, DISTINCT from $sourceUrl -- e.g. for a Wikibase- sourced item, the raw wiki page (all statements inspectable) vs $sourceUrl's polished public page. The two can genuinely differ; not every source has both. / |
| `contentType` | `?string` |  |  |
| `aggregator` | `?string` |  |  |
| `stage` | `?string` | filterable, facet | Pipeline processing stage (raw / normalized / enriched). A facet so you can filter to enriched items. Grouped under Admin -- plumbing a visitor neither knows nor wants, and the sidebar starts an Admin block collapsed. / |
| `title` | `?string` |  | dcterms:title |
| `description` | `?string` |  | dcterms:description — short curatorial text from the source institution |
| `date` | `?string` |  | dcterms:date — display string, may be fuzzy ("ca. 1920") |
| `citationUrl` | `?string` |  | ItemField::CITATION_URL — deep link back to the source record (e.g. the NARA catalog page). Rendered as the "Original" link on the folio item page. |
| `rights` | `?string` | filterable, facet | dcterms:rights — rights/copyright statement as text (e.g. "CC0", "Copyrighted"). A top-level facet. |
| `language` | `?string` |  | dcterms:language |
| `creators` | `?array` |  | dcterms:creator — array of names |
| `subjects` | `?array` | filterable, facet | dcterms:subject — keyword/topical subjects (incl. AI keywords). A sidebar facet. #[Translatable], same as $tags below: each element is extracted/translated independently, so a locale-variant folio build (folio:build --locale=en) folds in translated subject text automatically. Missing before 2026-08-04 -- subjects stayed in the source language on every translated build even after title/description were correctly translated, since applyTranslations() only touches #[Translatable] fields. / |
| `country` | `?string` | filterable, facet |  |
| `iiifManifest` | `?string` |  |  |
| `thumbnailUrl` | `?string` |  |  |
| `largeImageUrl` | `?string` |  |  |
| `pageCount` | `?int` | sortable | Number of pages in the document. |
| `source` | `string` |  | Source of this data: import \| ai \| ocr \| human |

## `dto_per_org`

- Core: `per`
- DTO type: `org`
- Rows: 787

Concrete BaseItemDto for subjects whose content type is unknown or mixed.
Use when no domain-specific DTO subclass applies.
/

| Field | Type | Flags | Description |
| --- | --- | --- | --- |
| `id` | `?string` |  |  |
| `contentType` | `?string` |  |  |
| `stage` | `?string` | filterable, facet | Pipeline processing stage (raw / normalized / enriched). A facet so you can filter to enriched items. Grouped under Admin -- plumbing a visitor neither knows nor wants, and the sidebar starts an Admin block collapsed. / |
| `title` | `?string` |  | dcterms:title |
| `pageCount` | `?int` | sortable | Number of pages in the document. |
| `source` | `string` |  | Source of this data: import \| ai \| ocr \| human |

# Query Guide

This folio stores canonical rows in `item` and observed field metadata in `schema_table` / `schema_property`.

```sql
select * from schema_table where kind = 'dto';
select * from schema_property where table_id = ? order by position;
select local_id, label, dto_type, dto_data, extras from item limit 20;
```

Convenience views are generated from observed DTO fields:

```sql
select * from dto_object limit 20;
```

```sql
select * from dto_per_org limit 20;
```