Open dataset

Every change StartupHistory has recorded, free to reuse under CC BY 4.0. Please credit “StartupHistory” and link the company record.

• changes.jsonl: one dated change per line (id, before_evidence, before_evidence_kind, company, website, record, kind, label, summary, between.from, between.to, evidence, evidence_kind, basis, published_at). basis is page_facts (quoted from the company's website or DNS) or classifier.
• updates.jsonl: the latest AI-written readings (headline, summary, points[]), each built only from the recorded changes.

Company records include stable observation IDs and both source URLs. Live URLs open the current website; they are not immutable captures. Topic JSON uses pagination.next to link subsequent pages.

Updated continuously. How changes are found: method.