Jail and Prison Opioid Project (JPOP) Dataset v1.1

v1.1 (2026-07-20) — changes from v1.0: Search complete: first-pass searches now cover 100% of both layers (prisons 1,570/1,570; jails 2,957/2,957 in-scope). Final-residue session: +3 findings (Las Colinas CA, Vista CA, Hennepin County ACF MN), +1 partial finding (Anoka County Work Release MN), 6 searched-negative tokens, 1 official rename (SD Detention Facility 8 → Rock Mountain), 3 verified-closed facilities tokened, 2 duplicate rows retired; jail roster 4,693 → 4,691. Franklin County CBCF (OH) classified out-of-scope. Post-publication PDF-source audit: all PDF-cited quotes verified against locally extracted or visually read documents; one citation re-attributed (Cambria County PA); no status changes; no fabricated sourcing found.