{"actors":["Audiovisual archivist serving as accountable condition owner","Preservation conservator","Special-collections curator","Facilities staff responsible for storage environments","Digitization coordinator","Reading-room and retrieval staff","Researchers and community members whose recorded heritage is held on analog carriers"],"affected_objective":"Preserve the physical stability and recoverability of recorded content on analog audiovisual carriers until authorized conservation or reformatting can occur.","arm":"ORDINARY_DIVERSE_P2","authority_safety":{"authorized_first_step":"The audiovisual archivist may review existing condition records, place approved environmental loggers in storage areas, and conduct curator-approved non-playback visual inspections of a sampled carrier set using established handling procedures.","decision_authority":"The audiovisual archivist interprets trends and drafts response recommendations; the preservation conservator determines handling, isolation, or treatment requirements; the special-collections curator approves access restrictions and reprioritization; facilities staff control environmental adjustments; the digitization coordinator approves reformatting work.","excluded_actions":["Do not play, clean, open, unwind, sample, or chemically test a carrier without conservator authorization.","Do not discard, deaccession, relocate, isolate, or reformat collection material automatically from a condition score.","Do not expose restricted collection content while inspecting labels or enclosures.","Do not make environmental changes that exceed approved facilities and conservation parameters.","Do not use condition findings to evaluate individual staff members.","Do not allow temporary sensors, labels, or inspection handling to obstruct retrieval or damage carriers."],"halt_rollback":"Halt inspections if handling produces visible change, suspected mold or hazardous residue is encountered, sensors threaten materials, or reviewers cannot apply the condition rubric consistently. Return unaffected items to their approved locations, restrict further handling of any potentially hazardous item pending conservator review, remove temporary equipment when safe, and withdraw unapproved treatment or reformatting requests."},"baseline":"Business as usual records conspicuous damage when an item is requested, processed, or played and separately reviews room-level environmental reports. It does not maintain a stable carrier sample, connect storage exposure to repeated item-condition observations, interpret deterioration rates, or route warning thresholds to named preservation decisions.","candidate_id":"deterioration_monitoring__library_information_science__ORDINARY_DIVERSE_P2","causal_chain":["Carrier chemistry, aging enclosures, repeated environmental excursions, and handling stresses gradually alter tapes, discs, films, and their containers.","Because most carriers remain stored and individual changes initially appear minor, staff can normalize isolated odor, residue, deformation, adhesion, corrosion, or pack irregularity.","A stable, stratified sample of carriers and storage locations makes latent deterioration observable through recurring non-playback condition checks and environmental histories.","Linked observations reveal direction, persistence, localization, and acceleration instead of treating each damaged item or room excursion as an isolated event.","Carrier-specific healthy, acceptable, warning, and unacceptable bands separate documented benign variation from persistent condition loss.","Threshold crossings route findings to conservator assessment, temporary handling controls, storage correction, enclosure replacement, or reformatting prioritization while recovery options remain.","Follow-up inspections test whether condition stabilizes and feed false alarms, missed damage modes, and changed storage conditions into recalibration of the sample, cadence, and thresholds."],"cell_id":"deterioration_monitoring__library_information_science","consequence":"Unobserved carrier deterioration can narrow later recovery options, complicate safe handling, interrupt access, spread contaminants to nearby materials, and leave collection stewards facing urgent conservation or reformatting decisions with incomplete condition histories.","diversity_from_prior_proposals":"This opportunity concerns chemical and physical loss in analog audiovisual carriers and storage environments. Its intervention uses non-playback carrier inspections, environmental exposure histories, conservation thresholds, and preservation response authority rather than monitoring metadata-mediated retrievability.","experiment_id":"eoa_inverse_innovation_exp13_second_slot_policy60_20260806","intervention":"Create an Audiovisual Carrier Condition Sentinel for selected storage areas. The audiovisual archivist and conservator define carrier-specific condition rubrics and select a stable sample stratified by format, enclosure type, location, and existing condition. Approved environmental loggers record storage exposures, while trained staff conduct non-playback visual and enclosure inspections at a cadence matched to the suspected decay process and response lead time. The register retains disaggregated signals such as deformation, residue, adhesion indicators, corrosion, pack irregularity, enclosure damage, suspected biological activity, and repeated environmental excursions. Persistent worsening, acceleration across signals, or clustering within a location enters a warning band requiring conservator diagnosis. Suspected active contamination, handling hazard, or condition incompatible with ordinary retrieval enters an unacceptable band requiring an authorized access, isolation, stabilization, or reformatting decision. Subsequent inspections test stabilization and support periodic recalibration.","mechanism_mapping":[{"counterfactual_removal":"Without recurring examination of the same sampled carriers, staff would see individual defects but lack evidence of persistence or worsening.","mechanism_slug":"preventive_inspection","role":"Provides carrier-specific, non-playback condition observations before routine access or playback reveals advanced damage."},{"counterfactual_removal":"Without environmental histories, staff could not connect item-condition patterns to recurring exposure in particular storage locations.","mechanism_slug":"condition_monitoring_sensor","role":"Records approved storage-environment signals that may precede or accompany carrier deterioration."},{"counterfactual_removal":"Without a structured assessment rubric, observations across formats and reviewers would not support interpretable condition bands.","mechanism_slug":"infrastructure_condition_assessment","role":"Combines carrier, enclosure, and storage observations into disaggregated preservation-condition records."},{"counterfactual_removal":"Without review of pending responses, threshold crossings could remain documented while stabilization or reformatting decisions are deferred.","mechanism_slug":"maintenance_backlog_review","role":"Tracks conservator assessments and authorized preservation actions generated by condition warnings."}],"nearest_rivals":["One-time collection condition survey: estimates current condition but lacks recurring observations, trend interpretation, and threshold-triggered follow-through.","Routine environmental monitoring alone: records room conditions but does not establish whether sampled carriers are deteriorating or which formats are affected.","Reformat-on-request workflow: responds when access is requested but may not reveal decline in carriers that remain unused.","Calendar-based mass digitization plan: schedules transfer according to program priorities without using repeated carrier-condition evidence to identify emerging preservation urgency.","Item-level damage flag: records an observed defect but does not determine direction, persistence, clustering, or escalation from a stable baseline."],"negative_tests":{"intervention_falsifier":"The intervention is falsified if repeated blind review cannot distinguish condition bands consistently, environmental and inspection warnings do not correspond to reproducible carrier changes on conservator assessment, or authorized responses do not stabilize the flagged condition on follow-up.","problem_falsifier":"The inferred problem is falsified if repeated observations show stable carrier condition, reported losses arise only from abrupt accidents without precursor signals, or existing controls already connect carrier-level trends to timely preservation decisions.","risks":["Inspection handling may itself damage fragile carriers.","Condition judgments may vary among reviewers or formats.","Environmental signals may be mistaken for evidence of item-level damage.","Visible symptoms may appear only after recovery options have already narrowed.","Sampling may miss deterioration concentrated in unsampled shelves or uncommon formats.","Warning volume may exceed conservation or reformatting capacity.","Suspected mold, residues, or degraded materials may present handling hazards.","Access restrictions triggered by uncertain findings may unnecessarily delay research."],"strongest_counterevidence":"The strongest counterevidence would be stable repeated condition assessments across carrier types and locations while incidents are explained by isolated handling accidents, abrupt equipment failures, or preexisting damage that does not progress."},"next_evidence_step":"Run a twelve-week read-only shadow pilot in one curator-approved storage area using a conservator-selected sample and observations at baseline, week six, and week twelve. Install only approved environmental loggers, prohibit playback and treatment, retain disaggregated signal histories, and have two trained reviewers independently score each inspection. The conservator will blind-review every proposed warning and draft, but not execute, response recommendations. Continue only if reviewers can apply the rubric consistently, warnings correspond to reproducible condition concerns, and the handling burden and safety controls are acceptable.","observable_state":"For every sampled carrier and storage location, the sentinel retains timestamped carrier format, enclosure condition, deformation, residue, adhesion indicators, corrosion, pack irregularity, suspected biological activity, environmental-exposure history, reviewer confidence, trend classification, conservator disposition, and response status. Healthy means no observed deterioration signal and storage exposure within the approved local baseline; acceptable means stable documented imperfections without directional loss; warning means persistent, accelerating, or spatially clustered worsening requiring diagnosis; unacceptable means suspected active contamination, a handling hazard, or condition that a conservator determines is incompatible with ordinary retrieval.","prior_art_status":"UNSEARCHED","problem":"Analog audiovisual carriers can lose physical and chemical stability while remaining untouched in storage. Small environmental excursions, enclosure failures, corrosion, deformation, adhesion, residue, or biological activity may emerge across different shelves and formats without any single event commanding attention. If condition is recorded only when a carrier is requested or played, deterioration histories remain fragmented and preservation decisions may begin after safe handling or recoverability has already become more constrained.","proposal_index":2,"remaining_contrastive_claim":"Unlike a one-time survey, room-level logger, request-triggered inspection, or fixed reformatting calendar alone, the sentinel repeatedly links carrier observations with storage exposure, preserves trend memory, applies carrier-specific warning bands, assigns interpretation authority, and routes threshold crossings to authorized preservation responses.","revision_record":{"claim_changes":["Initial version; no claims of novelty, prevalence, demand, or effect size are made."],"conceptual_changes":["Initial version maps gradual deterioration to chemical and physical condition loss in analog audiovisual carriers."],"evidence_changes":["No external evidence was inspected; prior art remains unsearched."],"operational_changes":["Initial version limits the first step to approved environmental logging and non-playback shadow inspections with no treatment, relocation, access restriction, or reformatting execution."],"parent_version":null,"progress_targets_addressed":["Independent problem, intervention, and causal path","Complete deterioration-monitoring loop","Explicit authority and handling safeguards","Problem and intervention falsifiers","Bounded first evidence step"]},"schema_version":1,"structural_mapping":[{"archetype_element":"Condition to preserve","domain_realization":"Physical stability, safe handleability, and recoverability of recorded content on analog audiovisual carriers."},{"archetype_element":"Baseline condition and bands","domain_realization":"Carrier-specific rubrics define healthy, acceptable, warning, and unacceptable states for carriers, enclosures, and associated storage exposure."},{"archetype_element":"Leading and lagging deterioration indicators","domain_realization":"Leading signals include repeated environmental excursions, enclosure change, early residue, minor deformation, corrosion, and pack irregularity; lagging signals include suspected active contamination, unsafe handling condition, or inability to proceed with ordinary retrieval."},{"archetype_element":"Inspection cadence","domain_realization":"A stable carrier sample and approved storage loggers are reviewed at intervals chosen according to plausible decay speed, handling burden, and conservator response lead time."},{"archetype_element":"Trend interpretation","domain_realization":"Timestamped histories allow the audiovisual archivist to assess persistence, direction, acceleration, format clustering, and storage-location clustering."},{"archetype_element":"Thresholds and escalation","domain_realization":"Persistent or clustered worsening requires conservator diagnosis; suspected contamination, handling hazard, or retrieval-incompatible condition escalates to authorized preservation and access decisions."},{"archetype_element":"Response pathway","domain_realization":"Findings can route to authorized environmental correction, enclosure replacement, isolation assessment, stabilization, handling controls, or reformatting prioritization."},{"archetype_element":"Monitoring recalibration","domain_realization":"Reviewer disagreement, conservator adjudication, false alarms, missed deterioration, format differences, and changed storage conditions inform revisions to sampling, signals, bands, and cadence."}],"title":"Audiovisual Carrier Condition Sentinel","version":0}