Launch: imaged-only release, 17.4M works

README.md

@@ -21,9 +21,15 @@ configs:
 
 # Artable
 
-Artwork records digitally published by museums and cultural institutions in the
-**UK, EU, Japan and Hong Kong**, harvested from each institution's own API or open-data
-endpoint and normalised into one schema.
+Artwork records digitally published by museums and cultural institutions across the
+**UK, Europe, the Americas and Asia**, harvested from each institution's own API or
+open-data endpoint and normalised into one schema.
+
+## Scope of this release
+
+**Every row in this release has a picture.** The working catalogue holds 23,010,062 records;
+the 5,604,792 with no image reference are held back for a later release rather than shipped
+as rows a reader cannot look at. Nothing was deleted — they return when they have pictures.
 
 ## Configs
 
@@ -33,39 +39,58 @@ search API.
 
 | config | rows | one row is |
 |---|---|---|
-| `artwork` (default) | 10,055,304 | an artwork |
-| `artist` | 5,232 | an artist, with a biography |
+| `artwork` (default) | 17,405,270 | an artwork, with an image reference |
+| `artist` | 56,989 | an artist, with a biography |
 
 Join on `artwork.artist` = `artist.name`.
 
 ## artwork
 
-`id`, `title`, `title_lang`, `title_zh`, `artist`, `artist_zh`, `year_start`, `year_end`,
-`date_display`, `medium`, `category`, `institution`, `institution_zh`, `city`, `country`,
-`region`, `accession`, `image_url`, `thumb_url`, `iiif`, `license`, `source_url`,
-`description`, `story`, `story_zh`.
+`id`, `title`, `title_lang`, `title_zh`, `title_alt`, `artist`, `artist_zh`, `year_start`,
+`year_end`, `date_display`, `medium`, `category`, `institution`, `institution_zh`, `city`,
+`country`, `region`, `accession`, `image_url`, `thumb_url`, `iiif`, `image_commons`,
+`image_commons_credit`, `license`, `source_url`, `description`, `description_zh`, `history`,
+`story`, `story_zh`.
+
+## artist
+
+`name`, `name_zh`, `story`, `story_zh`, `story_lang`, `story_url`, `born`, `died`, `works`.
+
+`story_lang` matters: 11,952 biographies exist only in French, German, Italian or Japanese.
+The column says which language the text is actually in, so a French article is never
+presented as though it were written or translated for this dataset.
 
 ## Honest limits
 
 Stated plainly, because a catalogue that overstates itself is worse than a smaller one.
 
 - **Unknown is `null`.** No accession number, licence, language tag or date is ever inferred.
-- **Traditional Chinese titles exist for ~17,700 works only** — essentially M+ Hong Kong, the
-  one source that publishes them. The 4.3M zh-Hant labels cover *artist* and *institution*
-  names, not work titles. Nothing here is machine-translated.
-- **~61% of rows carry an image reference.** The rest are records their museum has not
-  digitised. Measured against each institution's own published counts, this is close to the
-  real ceiling rather than a harvesting shortfall.
-- **Artist biographies reach ~845,000 works (8.4%).** Only 42,304 objects carry their own
-  Wikidata id, so work-level stories are inherently sparser than artist-level ones.
-- **Coverage is uneven by design of the sources, not the harvest.** Several institutions cap
-  paging while reporting success; where a page could not be retrieved it is recorded as a gap
-  rather than silently dropped.
+- **Chinese titles are marked by provenance.** A title in `title_zh` is one the museum itself
+  published. Machine-translated titles are held in a separate column and labelled in the app;
+  they are never merged into `title_zh`.
+- **40.2% of works carry a Traditional Chinese title**, almost all machine-translated through
+  a judged pipeline (each batch is graded by an independent reader and written only on a
+  pass). The remainder are untranslated, not silently left in their source language under a
+  Chinese label.
+- **"Story" is three different things.** 7,812,526 works carry the museum's own description or
+  curator's comment, 2,398,011 more reach a biography of their artist — but only **4,256**
+  have a narrative about that specific object. Do not read the aggregate as the last number.
+- **1,301,017 rows had an artist value that named nobody** — "Okänd", "Ingen uppgift",
+  "Onbekend / Unknown (Fotograaf)", "vermeld op object" — in 22 languages. These are now
+  `null` so that "unknown" is not presented as a person's name. Values carrying a real
+  attribution ("Anonymous British", "Unbekannt (Stecher)" where a nationality or role adds
+  information) were kept.
+- **192,623 rows carry a raw URI in the `artist` column** instead of a name
+  (`http://www.wikidata.org/entity/Q…`). These are unresolved identifiers, a known defect,
+  not names. Do not treat them as artist labels.
+- **Coverage is uneven by source, not by harvest.** Several institutions cap paging while
+  reporting success; where a page could not be retrieved it is recorded as a gap rather than
+  silently dropped.
 
 ## Images
 
 **Not included, and must not be mirrored.** Rows carry `image_url` / `iiif` pointing at the
-holding institution, which is both the licensing position and why this dataset is ~520 MB
+holding institution, which is both the licensing position and why this dataset is ~1.1 GB
 rather than terabytes.
 
 ## Attribution