PRCT Detection in the Portuguese Web Archive (1996–2021)

Replication package for the paper "The emergence of population replacement conspiracy theories in the Portuguese web: digital genealogy of a nativist nationalism (1996–2021)", submitted to Humanities and Social Sciences Communications (Springer Nature). This deposit includes: (1) a zero-shot classification script using DeepSeek-v3 for PRCT detection; (2) an inter-annotator agreement analysis script computing Cohen's Kappa and Gwet's AC1; (3) a gold standard dataset of 514 manually annotated documents from the Arquivo.pt web archive.