{"schema_version":1,"experiment_id":"eoa_inverse_innovation_exp03_full320_20260801","cell_id":"layer_decay_and_expiration_management__biology_ecology","trajectory_id":"R","attempt_index":0,"archetype_slug":"layer_decay_and_expiration_management","domain_slug":"biology_ecology","decision":"CANDIDATE","problem_id":"unmanaged_lifecycle_of_long_term_ecological_sample_archives","causal_lever_id":"dependency_gated_tiered_sample_disposition","proposal":{"problem":"Long-term ecological monitoring programs accumulate repeated physical specimens, environmental samples, extracts, images, sequence products, and associated interpretations faster than they can curate them. Old materials remain in active storage or discovery systems without consistent lifecycle states, while indiscriminate disposal could erase irreplaceable baselines, provenance, or future reanalysis opportunities.","actors_substrate":["ecological observatory and collection managers","field researchers and taxonomists","data stewards and laboratory staff","physical specimens and environmental samples","extracts, images, sequence files, metadata, and taxonomic interpretations","funders, regulators, Indigenous or local data-rights holders, and future researchers"],"observable_state":"A growing share of archive capacity is occupied by old or duplicated holdings with unknown dependencies, obsolete identifications remain discoverable as current, retention exceptions are inconsistently recorded, and staff cannot establish which holdings may safely move, compact, or leave the collection.","consequence":"Search and curation burdens increase, scarce controlled-storage capacity is consumed, stale interpretations contaminate reuse, and cleanup is deferred or performed with unacceptable risks to reproducibility and historical reconstruction.","affected_objective":"Preserve scientifically necessary ecological memory and reanalysis capacity while bounding storage, curation effort, and exposure to stale interpretations.","structural_mapping":[{"archetype_element":"sequential deposits","domain_realization":"Repeated sampling campaigns produce dated cohorts of specimens, extracts, observations, and derived products.","claim_kind":"CORPUS"},{"archetype_element":"changing layer value","domain_realization":"A cohort's current value depends on uniqueness, condition, provenance, use, replicability, taxonomic status, and obligations rather than age alone.","claim_kind":"INFERENCE"},{"archetype_element":"stale active layers","domain_realization":"Superseded taxonomic identifications, metadata, or derived products may remain visible without a clear current-status marker.","claim_kind":"HYPOTHESIS"},{"archetype_element":"dependency-sensitive removal","domain_realization":"Publications, reference sequences, permits, longitudinal reconstructions, and downstream datasets may depend on a retained sample or record.","claim_kind":"INFERENCE"},{"archetype_element":"differentiated expiration","domain_realization":"Outcomes include relabeling, migration to slower storage, consolidation of derivatives, archival transfer, or reversible removal—not automatic destruction.","claim_kind":"INFERENCE"}],"component_map":[{"component":"layer_inventory_and_identity_map","status":"direct","domain_realization":"Persistent identifiers link each sample cohort to specimens, aliquots, derivatives, metadata, and interpretations."},{"component":"deposition_order_and_age_index","status":"direct","domain_realization":"Collection event, processing date, and derivative generation establish temporal order."},{"component":"retention_policy_matrix","status":"adapted","domain_realization":"Rules vary by holding class, uniqueness, consent or permit terms, scientific role, and preservation feasibility."},{"component":"decay_function_or_aging_rule","status":"adapted","domain_realization":"Age modifies review priority but cannot alone determine scientific value or destruction."},{"component":"expiration_trigger_definition","status":"adapted","domain_realization":"Review is triggered by elapsed time, degraded condition, supersession, prolonged nonuse, duplication, or capacity thresholds."},{"component":"layer_value_and_risk_score","status":"adapted","domain_realization":"A transparent multi-factor ranking covers uniqueness, condition, provenance, dependencies, future option value, cost, and sensitivity."},{"component":"dependency_and_reconstruction_check","status":"direct","domain_realization":"Disposition is blocked while publications, longitudinal series, reference records, or derivative lineage still require the holding."},{"component":"pruning_or_archival_pathway","status":"adapted","domain_realization":"Refresh labels, consolidate redundant derivatives, migrate storage, transfer custody, quarantine, or destroy only when authorized."},{"component":"preservation_exception_register","status":"direct","domain_realization":"Named exceptions protect vouchers, rare-event samples, reference material, culturally sensitive holdings, and unique baselines."},{"component":"deletion_audit_and_rollback_window","status":"adapted","domain_realization":"Records and digital derivatives enter reversible quarantine before final removal; physical material is retained during the review window."},{"component":"resource_budget_and_storage_tier","status":"direct","domain_realization":"Freezer, cryogenic, ambient, off-site, and digital tiers have explicit capacity, cost, latency, and preservation constraints."},{"component":"review_cadence_and_revalidation_loop","status":"direct","domain_realization":"Periodic review rechecks condition, dependencies, obligations, exception validity, and restore performance."},{"component":"legal_hold_or_compliance_override","status":"adapted","domain_realization":"Permits, benefit-sharing terms, litigation holds, consent, repository commitments, or regulatory duties override ordinary disposition."},{"component":"hot_warm_cold_access_state","status":"adapted","domain_realization":"Frequently accessed holdings remain locally available; validated low-use holdings move to slower or off-site custody."},{"component":"orphan_layer_detection","status":"adapted","domain_realization":"Candidates lacking live scientific, lineage, policy, or custodial dependencies are identified for review."},{"component":"supersession_marker","status":"direct","domain_realization":"Old identifications and derived products point to their accepted successor while preserving provenance."},{"component":"layer_compaction_candidate_flag","status":"adapted","domain_realization":"Redundant aliquots or digital derivatives are flagged for consolidation only when information loss is characterized."},{"component":"rehydration_or_restore_procedure","status":"adapted","domain_realization":"Staff periodically retrieve archived material and verify identity, readability, condition, metadata linkage, and usability."},{"component":"deletion_impact_estimate","status":"direct","domain_realization":"Review estimates irreproducibility, lineage breakage, stakeholder impact, and lost future-analysis options."},{"component":"stale_context_detector","status":"adapted","domain_realization":"Checks flag superseded taxonomy, invalid coordinates, changed protocols, broken links, and obsolete environmental context."}],"mechanism_dispositions":[{"slug":"age_weighted_value_score","disposition":"selected_supporting","contribution_type":"OPERATIONAL","adaptation_or_rejection":"Use only to rank reviews; cap age influence and expose factor-level scores because old ecological material may gain value.","counterfactual_removal":"Review remains possible but becomes less consistent and harder to prioritize at scale."},{"slug":"archive_restore_test","disposition":"selected_load_bearing","contribution_type":"SAFETY_GUARDRAIL","adaptation_or_rejection":"Test sampled physical and digital holdings across age and storage tiers for identity, condition, linkage, and usability.","counterfactual_removal":"Tier migration could silently convert retained ecological evidence into unusable material."},{"slug":"cache_eviction_rule","disposition":"considered_rejected","contribution_type":"NONE","adaptation_or_rejection":"Access recency is too weak a proxy for uniqueness or future scientific value; no automatic eviction is permitted.","counterfactual_removal":"No causal loss; tiering uses governed review rather than instantaneous eviction."},{"slug":"dependency_safe_delete_check","disposition":"selected_load_bearing","contribution_type":"CORE_CAUSAL","adaptation_or_rejection":"Trace scientific lineage, publications, longitudinal series, permits, and external custody before disposition.","counterfactual_removal":"The intervention could break reproducibility or destroy a still-load-bearing sample."},{"slug":"lifecycle_storage_tiering_policy","disposition":"selected_load_bearing","contribution_type":"CORE_CAUSAL","adaptation_or_rejection":"Map hot/warm/cold states to biological preservation requirements, not age and access alone.","counterfactual_removal":"Most capacity relief would require destruction or continued use of scarce active storage."},{"slug":"log_rotation_and_cleanup_job","disposition":"considered_rejected","contribution_type":"NONE","adaptation_or_rejection":"Generational position cannot safely govern ecological holdings because rare events may occur anywhere in the sequence.","counterfactual_removal":"No causal loss; cohort order remains indexed without blind tail purging."},{"slug":"retention_schedule","disposition":"selected_load_bearing","contribution_type":"CORE_CAUSAL","adaptation_or_rejection":"Class rules incorporate scientific role, permits, consent, repository duties, and named preservation exceptions.","counterfactual_removal":"Disposition would lack consistent authority and exceptions would become implicit or permanent."},{"slug":"soft_delete_quarantine_window","disposition":"selected_supporting","contribution_type":"SAFETY_GUARDRAIL","adaptation_or_rejection":"Quarantine digital records and segregate physical candidates before irreversible destruction.","counterfactual_removal":"Classification mistakes would become immediately irreversible."},{"slug":"stale_layer_detection_dashboard","disposition":"selected_supporting","contribution_type":"OPERATIONAL","adaptation_or_rejection":"Expose identity-resolved holdings and evidence of obsolete taxonomy, metadata, or context without acting automatically.","counterfactual_removal":"Stale interpretations remain harder to find, but storage lifecycle decisions can still operate."},{"slug":"time_to_live_ttl_policy","disposition":"considered_rejected","contribution_type":"NONE","adaptation_or_rejection":"Fixed self-executing expiry is incompatible with uncertain future value; elapsed time may trigger review only.","counterfactual_removal":"No causal loss because review triggers are retained without clock-driven destruction."},{"slug":"tombstone_or_deletion_marker","disposition":"selected_supporting","contribution_type":"SAFETY_GUARDRAIL","adaptation_or_rejection":"Retain provenance, disposition reason, date, and successor pointer after a holding or interpretation leaves active use.","counterfactual_removal":"Absence becomes ambiguous and stale replicas or citations may revive superseded claims."}],"causal_chain":["Inventory and identity resolution reveal accumulated holdings, their age, condition, interpretations, and resource burden.","Retention classes, exceptions, and dependency checks separate protected holdings from disposition candidates.","Staleness and value-risk evidence prioritize review without allowing age or access to authorize destruction.","Validated candidates move to cheaper compatible tiers, receive supersession markers, consolidate reversibly, or enter quarantine.","Restore drills and periodic revalidation detect preservation failures and changed dependencies.","Capacity and interpretability improve while lineage and exceptional scientific value remain protected."],"baseline":"Keep most holdings in their original active tier until space pressure prompts ad hoc freezer moves, duplicate disposal, or emergency expansion; update interpretations inconsistently.","nearest_rival":"Uniform keep-all retention combined with additional storage capacity and digitization, which preserves optionality but does not resolve stale authority, hidden dependencies, or unbounded physical curation.","authority_safety":{"affected_parties":["researchers who created or reuse the holdings","collection and laboratory staff","communities or jurisdictions with rights over samples or data","regulators, funders, and repositories","future investigators relying on longitudinal baselines"],"decision_authority":"The collection's accountable curator or repository governance board, with scientific, compliance, and rights-holder review where applicable, authorizes lifecycle classes and irreversible disposition.","authorized_first_step":"Run a six-month pilot on one closed, non-type monitoring cohort: build the inventory, classify dependencies and exceptions, shadow-score all holdings, migrate only validated duplicates or low-use derivatives to a reversible tier, and conduct one restore drill.","excluded_actions":["destruction of type, voucher, unique rare-event, legally held, culturally sensitive, or dependency-unknown material","automatic disposal based only on age, nonuse, storage cost, or composite score","lossy physical or digital consolidation without an approved information-loss assessment","changing accepted taxonomic or ecological interpretations without qualified review"],"halt_rollback":"Halt migrations if identity mismatches, unrecorded dependencies, rights conflicts, or restore failures occur; return quarantined items to their prior tier, preserve all audit records, and suspend final destruction until root causes are reviewed."}},"negative_tests":{"strongest_counterevidence":"Old ecological holdings can acquire unforeseen value when new assays or environmental questions arise; if most holdings are unique and properly curated, lifecycle scoring may rationalize irreversible loss while producing little capacity benefit.","analogy_break":"Unlike digital layers, biological specimens continue to degrade, may be consumed by analysis, and cannot always be restored to their former molecular state; compaction or rehydration can therefore destroy information even when records remain.","failure_condition":"The approach fails if identifiers and lineage are too incomplete to establish dependencies, storage tiers do not preserve the relevant material, or governance cannot legitimately resolve rights and preservation exceptions.","problem_falsifier":"A representative audit finds no material unmanaged accumulation, no stale interpretations presented as current, no meaningful active-storage or curation burden, and consistently documented dependencies and retention states.","intervention_falsifier":"In the bounded pilot, governed tiering yields no measurable capacity, retrieval, or stale-label improvement, or exceeds predeclared tolerances for restore failure, identity mismatch, missing dependencies, or stakeholder objection relative to baseline.","risks":["false precision in value scores","loss of future option value from apparently redundant material","sample degradation during movement or retrieval","under-detected external dependencies","rights or consent violations","exception registers becoming permanent keep-all policies","stale metadata being propagated into the new inventory"]},"null_rationale":null,"classification":{"candidate_kind":"MECHANISM_COMPOSITION","prior_art_status":"UNSEARCHED","evidence_maturity":"HYPOTHESIS"},"revision_change_log":{"revision_kind":"ORIGINAL","prior_problem_id":null,"prior_causal_lever_id":null,"problem_changed":false,"causal_lever_changed":false,"conceptual_changes":[],"operational_changes":[],"repairs_addressed":[]},"confidence":0.86,"generator_notes":"Closed-book structural inference from the supplied packet. Empirical prevalence and pilot effects are hypotheses; prior art was not searched."}