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Chrono pretrain — OpenAlex English article abstracts (through 2019)

Cutoff-honest scholarly abstracts from OpenAlex (publication_date ≤ 2019-12-31). Filter: has_abstract:true,language:en,type:article.

Sliced from jjjlimaus/openalex-en-articles (years 1800–2019). Later years (2020–present) are omitted.

Each row is JSON:

  • id
  • text (title + abstract)
  • date
  • source
  • license
  • title
  • doi
  • type

Abstracts reconstituted from abstract_inverted_index. Metadata is CC0 via OpenAlex; publisher copyright may still apply to abstract wording — research use.

Layout: years/YYYY/YYYY-MM.jsonl.gz

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