# Verification checks (P4)

- Clean re-run: deleted out/results.json, re-ran analysis.py, byte-identical to previous output (cmp): PASS
- No CIs/SEs produced (no uncertainty propagation required), so CI-contains-estimate and SE>0 checks are not applicable.
- Information rule: every input is a printed cell of the cited extract (line numbers in locators); E4 baseline not substituted.
- n_harmonised equals count of non-null values: PASS
- n_not_harmonisable equals count harmonisable=false: PASS
- n_harmonised + n_not_harmonisable == n_analysed == 5: PASS
- null value <=> harmonisable false <=> missing_quantity non-null: PASS
- E1 computed rounds to printed -35.0%: PASS
- E1 sign negative like log-point ATT: PASS
- E2 recompute 100*1.47/75.0: PASS
- E3 recompute 100*-0.388*0.047: PASS
- E3 magnitude close to abstract 'about 2% employment decline': PASS
- E5 recompute -0.0962*100: PASS
- all non-null values finite: PASS
- random_seed null, task_id correct: PASS
- n_input_rows matches wc -l (66,91,58,134,16) and 5 items: PASS
- exclusions: 5 raw - 0 removed = 5 analysed: PASS