{"closest_prior_art":[{"name":"IPI film-preservation research, A-D Strips, and FilmCare decision support","overlap":"Establishes autocatalytic acetate decay, non-destructive acid-indicator monitoring, collection-condition assessment, low-temperature storage, and condition-informed preservation decisions.","remaining_difference":"The retained source does not describe a matched, reversible four-arm pilot that jointly estimates acid-transport thresholds, entry-versus-exit behavior, recovery, and prospective cabinet-specific transition tempo.","source_ids":["SRC1"]},{"name":"NARA cold-storage guidance","overlap":"Treats cold storage as a principal film-preservation strategy and requires special packaging, monitoring, conservator involvement, and acclimation to prevent condensation during retrieval.","remaining_difference":"It gives operational guidance rather than a controlled comparison of ambient, ventilated, sorbent-buffered, and refrigerated regimes or a prospective threshold classifier.","source_ids":["SRC3"]},{"name":"Autocatalytic mathematical model of cellulose-triacetate vinegar syndrome","overlap":"Models hydrolytic deacetylation, autocatalysis, confined acid retention, temperature and humidity effects, and the possibility that conventional cold-storage lifetime estimates are optimistic.","remaining_difference":"It uses published aging data and mathematical prediction, not non-destructive archive-scale perturbation, recovery observations, carrier-context auditing, or subgroup-specific transition gates.","source_ids":["SRC4"]},{"name":"ISO 18911:2010 storage practice for processed safety film","overlap":"Standardizes storage-condition, facility, handling, and inspection recommendations for processed safety photographic films, including marked or retouched records.","remaining_difference":"It is a storage-practice standard, not a protocol for estimating collection-specific change points, hysteresis, enclosure feedback, or differentiated cutover tempo.","source_ids":["SRC2"]}],"contrastive_claim_falsifier":"The remaining claim would be falsified if predeclared, calibrated measurements on matched authorized reels show no reproducible regime-dependent acid accumulation or clearance, dimensional response, lag, recovery asymmetry, or held-out predictive value beyond ordinary condition assessment—or if buffered or refrigerated arms cause greater net damage than the ambient control.","contrastive_claim_remaining":"Beyond established monitoring, cold storage, acclimation, isolation, and condition-based prioritization, a narrow testable claim remains: reversible matched perturbations can reveal collection-specific acid-transport thresholds or path dependence that prospectively improve cabinet-level transition-tempo decisions while preserving carrier evidence.","experiment_id":"eoa_inverse_innovation_exp13_second_slot_policy60_20260806","gates":{"adequate_source_search":{"rationale":"Four search lanes covered the proposal, vinegar-syndrome and safety-film terminology, standards and institutional practices, and combinations involving acid indicators, ventilation, sorbents, refrigeration, condensation, thresholds, and hysteresis. Four opened sources span ISO, NARA, RIT/IPI, and primary research.","source_ids":["SRC1","SRC2","SRC3","SRC4"],"status":"PASS"},"bounded_next_test":{"rationale":"A reversible six-week matched-reel pilot is bounded and can test short-term headspace accumulation and clearance, environmental gradients, condensation, handling burden, and recovery asymmetry. It cannot validate long-term decay kinetics; survival therefore depends on treating it as a feasibility and transport-signature test, with longer observation or authorized accelerated surrogates required later.","source_ids":["SRC1","SRC3","SRC4"],"status":"PASS"},"distinct_testable_claim":{"rationale":"Existing sources establish the individual practices, but the prospective claim that measured threshold or path-dependent signatures improve subgroup-specific transition timing over routine condition assessment is distinct and falsifiable.","source_ids":["SRC1","SRC3","SRC4"],"status":"PASS"},"no_obvious_safety_or_authority_stop":{"rationale":"Cold storage presents recognized condensation and humidity hazards, but NARA recommends special packaging, acclimation, and specialist consultation. The proposal confines the first step to authorized test material, independent limits, stop conditions, isolation, and committee review; no obvious stop precludes the bounded pilot.","source_ids":["SRC2","SRC3"],"status":"PASS"},"supported_problem":{"rationale":"The sources document inherent acetate instability, autocatalytic acid production, confined-vapor effects, irreversible physical deterioration, the importance of condition assessment, and condensation risks during cold-storage access.","source_ids":["SRC1","SRC3","SRC4"],"status":"PASS"}},"prior_art_disposition":"ADJACENT_PRIOR_ART","problem_evidence":{"finding":"The preservation problem is visible and well supported: cellulose-acetate film can generate acetic acid through hydrolytic deacetylation, accelerate through autocatalysis and confined acid retention, develop brittleness, shrinkage, buckling, and deposits, and require monitored cold storage with controlled acclimation. Existing practice already covers non-destructive acidity surveys and condition-informed prioritization, but the retained sources do not directly establish the proposed reversible multi-arm threshold-and-hysteresis pilot.","source_ids":["SRC1","SRC3","SRC4"],"status":"SUPPORTED"},"research_id":"eoa_inverse_innovation_exp13_light_screen_20260806","schema_version":1,"screen_id":"E13P023","screen_survival":true,"search_lanes":{"component_combination":{"no_result_note":"No retained source described the full combination of matched ambient, ventilated, vapor-barrier-plus-sorbent, and acclimatized-refrigeration arms with recovery steps and held-out threshold prediction.","queries":["cellulose acetate film headspace acidity monitoring cabinet ventilation molecular sieve study","\"acetate film\" \"hysteresis\" preservation storage","\"vinegar syndrome\" \"reversibility\" cold storage film"],"source_ids":["SRC1","SRC3","SRC4"]},"direct_problem_and_intervention":{"no_result_note":null,"queries":["cellulose acetate film vinegar syndrome cold storage molecular sieves A-D strips autocatalytic hydrolysis archive","acetate film collection survey sampling A-D strips cold storage priorities cabinets"],"source_ids":["SRC1","SRC3","SRC4"]},"products_practices_and_standards":{"no_result_note":null,"queries":["ISO cellulose acetate film storage standard temperature relative humidity 18911","acetate film preservation staged acclimatization refrigeration condensation archive guidelines"],"source_ids":["SRC1","SRC2","SRC3"]},"synonyms_and_historical_terms":{"no_result_note":"Searches using safety film, vinegar syndrome, acid-detecting strips, deacetylation, reversibility, and hysteresis found adjacent monitoring, storage, and material-science work but not the complete proposed protocol.","queries":["\"safety film\" \"acid-detecting strips\" acclimatization molecular sieve","\"vinegar syndrome\" \"reversibility\" cold storage film","\"acetate film\" \"hysteresis\" preservation storage"],"source_ids":["SRC1","SRC2","SRC4"]}},"sources":[{"claims_supported":["Cellulose-acetate deterioration creates an acidic environment and accelerates.","A-D Strips provide non-destructive assessment and monitoring in new storage environments.","Low-temperature storage and condition-informed decision support are established preservation practices."],"publisher":"Rochester Institute of Technology, Image Permanence Institute","source_id":"SRC1","source_type":"FIRST_PARTY_PRODUCT","title":"Film Preservation","url":"https://www.rit.edu/ipi/film-preservation"},{"claims_supported":["ISO 18911 provides storage-condition, facility, handling, and inspection recommendations for processed safety photographic film.","The standard covers safety film records with markings or uncertain processing histories and remains current after 2025 confirmation."],"publisher":"International Organization for Standardization","source_id":"SRC2","source_type":"OFFICIAL_STANDARD","title":"ISO 18911:2010 — Imaging materials — Processed safety photographic films — Storage practices","url":"https://www.iso.org/standard/46602.html"},{"claims_supported":["Cold storage is an important film-preservation strategy.","Special packaging and acclimation are needed to prevent condensation.","Cold-storage implementation should involve a conservator or preservation specialist."],"publisher":"U.S. National Archives and Records Administration","source_id":"SRC3","source_type":"OFFICIAL_GUIDANCE","title":"Cold Storage","url":"https://www.archives.gov/preservation/storage/cold-storage"},{"claims_supported":["Hydrolytic deacetylation releases acetic acid and produces autocatalytic deterioration.","Confined enclosures can retain acid and promote autocatalysis.","A validated mathematical model suggests existing permanence guidance may underestimate deterioration and that cold storage may be less effective than previously modeled."],"publisher":"Elsevier, repository copy hosted by University College London","source_id":"SRC4","source_type":"PRIMARY_RESEARCH","title":"Are we overestimating the permanence of cellulose triacetate cinematographic films? A mathematical model for the vinegar syndrome","url":"https://discovery.ucl.ac.uk/id/eprint/10089012/7/Curran_IAhmad%20et%20al.%20PDSt%202019.pdf"}],"world_novelty_boundary":"This bounded public-web screen found extensive adjacent prior art and cannot establish world novelty, patentability, market size, expert acceptance, or realized preservation value. Survival applies only to the narrow prospective threshold/path-dependence experiment, not to its established monitoring, isolation, sorbent, acclimation, or cold-storage components."}