Deterministic Citation-Identity in Perplexity: A 14-Day Zero-Variance Replication of AI Citation Behaviour on Proprietary-Concept Queries — Dataset

14-day citation measurement dataset for E027 — a replication study of Perplexity sonar-pro citation behaviour across a 10-query universal set (5 Tier 1 proprietary-concept, 5 Tier 2 category) against thegeolab.net. Includes full day-by-day citation log (140 rows), Q09 annotation URL log documenting a four-way disambiguation conflict (GeoSCADA, GeoServer, Dell RAM, /geo-stack/), and raw DataForSEO API JSON responses for Day 1. Days 3-14 from automated VPS cron runs; Day 1 format-verified from PC repo; Day 2 reconstructed from session notes. Companion dataset to the E027 working paper (DOI to be assigned). Related: E016 noise floor paper (10.5281/zenodo.19869156), EDX null result (10.5281/zenodo.19450361).