{"abstention_reason":null,"arm":"SUBSTRATE_DIVERSE_P2","candidate_id":"fast_slow_store_coupling__engineering_design__SUBSTRATE_DIVERSE_P2","cell_id":"fast_slow_store_coupling__engineering_design","decision":"PROPOSAL","experiment_id":"eoa_inverse_innovation_exp13_second_slot_policy60_20260806","proposal":{"actors":["Instrumentation engineer who specifies bandwidth, thresholds, proof masses, and latch geometry","Mechanical design engineer who evaluates mounting and dynamic interaction with the monitored assembly","Metrology technician who calibrates the recorder and performs physical transfers","Reliability engineer who interprets interval load envelopes for inspection planning","Asset owner who controls maintenance access","Safety or certification authority who decides whether the device may inform any safety-relevant decision"],"affected_objective":"Preserve otherwise unobserved transient mechanical overload evidence from unpowered or inaccessible assemblies so maintenance engineers can distinguish benign service intervals from intervals requiring inspection, without requiring continuous telemetry.","arm":"SUBSTRATE_DIVERSE_P2","authority_safety":{"authorized_first_step":"The instrumentation engineer may build and test a stand-alone recorder on a sacrificial bench fixture using controlled impulses; it may not be attached to an operational or qualification asset.","decision_authority":"The metrology lead determines whether measurement performance is valid, the responsible mechanical engineer controls mounting approval, and the safety or certification authority has final authority over any operational pilot or safety-relevant interpretation.","excluded_actions":["No attachment to an operational, flight, production, pressure-boundary, or safety-critical asset during the first evidence step","No use of recorder output to extend inspection intervals, clear an asset for service, or alter a certified maintenance limit","No substitution for required telemetry, nondestructive examination, teardown, or protective shutdown instrumentation","No reset of a fast-store latch until a legible transfer and calibration witness have been independently confirmed","No drilling, welding, adhesive bonding, or mass addition to an in-scope asset without separate engineering approval"],"halt_rollback":"Stop testing if the recorder detaches, changes fixture dynamics beyond the declared bound, produces an ambiguous latch state, loses a state during transfer, fails its calibration witness, or desynchronizes its interval index. Quarantine the affected strips, retain the reference-instrument record, leave operational procedures unchanged, and return the fixture to its documented pretest configuration."},"baseline":"The assumed comparison condition uses scheduled visual or nondestructive inspection, operator reports, and possibly a single irreversible over-limit telltale. In locations without practical power or telemetry, the peak load experienced between inspections is therefore unknown or represented only by accumulated damage after it occurs.","candidate_id":"fast_slow_store_coupling__engineering_design__SUBSTRATE_DIVERSE_P2","causal_chain":["Short shocks can load an inaccessible mechanical assembly faster than periodic inspection can observe them, while continuous powered instrumentation may be impractical.","A housing-mounted bank of proof masses, springs, and low-friction peak-hold ratchets responds at the shock timescale and retains the maximum displacement reached in each directional or load band.","Mechanical stops and saturation flags bound each channel, while a protected latch rack holds the recent interval envelope without electrical power.","At maintenance access, a keyed docking lever presses the rack positions into an annealed metal strip before any latch is reset.","The docking geometry converts continuous rack displacement into calibrated embossed threshold marks and simultaneously adds zero, span, saturation, recorder-identity, and interval-registration impressions.","The embossed strip becomes the slow store: a durable sequence of interval load envelopes that can be compared physically with gauge templates and retained with inspection evidence.","A mechanical interval counter, matching registration notches, and pre-transfer and post-transfer calibration impressions expose skipped transfers, duplicate strips, rack creep, incomplete embossing, and counter mismatch.","After a verified transfer, the ratchets are reset for rapid capture during the next interval; the bounded fast store is refreshed while the metal-strip archive preserves the long-horizon load history."],"cell_id":"fast_slow_store_coupling__engineering_design","consequence":"Absent reliable transient-load evidence, a damaging impact can remain undiscovered until cracking or deformation appears, while uncertainty can also cause unnecessary teardown or retirement of assemblies that experienced no consequential overload.","diversity_from_prior_proposals":"This opportunity addresses missing physical overload measurements in inaccessible assemblies, not the capture and promotion of prototype design-change records. Its intervention is a passive mechanical peak-hold instrument coupled by contact embossing to a durable material archive; its causal path runs through inertia, spring displacement, ratchet retention, plastic deformation, and dimensional verification rather than ledgers, record transformation, review routing, or configuration authority.","experiment_id":"eoa_inverse_innovation_exp13_second_slot_policy60_20260806","intervention":"Install a passive dual-store overload recorder consisting of a fast mechanical peak-hold rack and a slow embossed-metal archive. Proof-mass channels latch transient displacement immediately; during maintenance, a keyed docking press transforms the retained positions into calibrated permanent impressions, verifies registration and span, and only then mechanically resets the fast rack for the next interval.","mechanism_mapping":[{"counterfactual_removal":"Without the resettable latch rack, a brief shock would disappear before scheduled access or would require a continuously powered recorder.","mechanism_slug":"two_store_architecture","role":"Assigns rapid transient capture to a mechanical fast store and durable interval history to a plastically deformed material store."},{"counterfactual_removal":"Without physical embossing, resetting the ratchets would erase the prior interval envelope and prevent construction of a long-horizon history.","mechanism_slug":"memory_consolidation","role":"Transforms temporary rack displacement into calibrated, permanent threshold marks on a metal strip."},{"counterfactual_removal":"Without a maintenance-access transfer rule, the latch rack could remain saturated through later events or be reset before its state is preserved.","mechanism_slug":"cadence","role":"Couples transfer to each authorized maintenance access and requires transfer verification before reset."},{"counterfactual_removal":"Without mechanical stops and saturation indicators, loads beyond the measurement range could masquerade as ordinary in-range peaks.","mechanism_slug":"interference_and_contention","role":"Protects the fast physical state from overtravel and makes capacity exhaustion observable."},{"counterfactual_removal":"Without matching interval notches, calibration witnesses, and counter positions, an omitted, duplicated, crept, or incompletely embossed interval could enter the archive undetected.","mechanism_slug":"data_integrity","role":"Provides physical reconciliation between fast-store state, transfer operation, and slow-store sequence."},{"counterfactual_removal":"Without reset and bounded channel capacity, the fast layer would remain saturated and cease recording useful new interval maxima.","mechanism_slug":"resource_management","role":"Refreshes the finite mechanical working store after successful durable transfer."}],"nearest_rivals":["A powered high-rate data logger preserves full waveforms but depends on power, sensors, wiring, environmental qualification, and digital storage rather than passive mechanical capture.","A crush pin, telltale washer, or one-shot shock indicator records an exceedance but normally lacks a resettable fast store, interval-by-interval durable transfer, and reconciliation markers.","A fatigue or strain-history coupon accumulates material damage directly over long periods but may not distinguish maintenance intervals or retain a rapid peak envelope.","Periodic nondestructive examination searches for damage consequences after access; it does not preserve the transient load that may explain an otherwise latent defect."],"negative_tests":{"intervention_falsifier":"The intervention is falsified for further development if blinded bench trials show unacceptable missed thresholds or false latches, mounting-induced response distortion, latch creep between impulse and transfer, loss or alteration of state during docking, unreadable or nonrepeatable embossing, or any interval-counter mismatch that the physical reconciliation marks fail to expose.","problem_falsifier":"The problem is falsified for a candidate assembly if validated existing instrumentation already captures every relevant transient at adequate bandwidth and availability, or if controlled evidence shows that peak interval loads add no actionable information beyond mandated inspection and cumulative-damage indicators.","risks":["Recorder mass, stiffness, or mounting could alter the local dynamics being measured.","Proof-mass orientation or bandwidth could miss off-axis, long-duration, or high-frequency loads.","Friction, contamination, temperature, wear, or creep could change latch thresholds.","A saturated channel could understate the true overload magnitude.","Docking force could move a latch before its original position is embossed.","Metal strips could be mislabeled, damaged, substituted, or interpreted with the wrong gauge.","Users could treat a below-threshold record as proof of structural safety despite unmeasured failure modes.","Resetting before transfer verification could irreversibly erase the interval state."],"strongest_counterevidence":"The strongest counterevidence would be fixture-correlated service data showing that existing inspections or simple cumulative material indicators already predict every maintenance-relevant damage state, while interval peak envelopes contribute no additional discrimination or produce unacceptable false assurance."},"next_evidence_step":"Run a bench-only blinded measurement study on a sacrificial fixture. Apply at least thirty reference-measured impulses spanning directions, durations, temperatures, subthreshold cases, threshold boundaries, repeated shocks, and saturation. Leave selected latched states through a simulated maintenance delay, then have a technician dock, emboss, verify, and reset the recorder without seeing the reference values. Compare physical strip readings with the high-rate reference instrument for threshold sensitivity, false-latch rate, peak-bin error, creep, transfer loss, registration errors, reset completeness, and mounting-induced response change. The metrology lead and safety authority then decide whether a separately authorized noncritical-asset pilot is justified.","observable_state":"Observers can directly inspect each ratchet position, channel identifier, range stop, saturation flag, mechanical interval-counter position, keyed docking registration, embossed peak bin, zero and span witness marks, transfer-complete mark, reset position, and archived strip sequence. Bench metrics include missed thresholds, false latches, bin error, creep displacement, emboss repeatability, transfer failures, counter mismatches, saturation frequency, and fixture-response perturbation.","prior_art_status":"UNSEARCHED","problem":"Transient shocks and overloads in unpowered, sealed, remote, or access-limited mechanical assemblies can occur between inspections and vanish without a durable trace. A one-shot telltale supplies little interval history, while continuous telemetry may impose unacceptable power, wiring, environmental, or qualification burdens.","proposal_index":2,"remaining_contrastive_claim":"The proposal remains distinct from a one-shot peak indicator, cumulative damage coupon, powered logger, or periodic inspection because it couples a resettable high-speed mechanical state store to a separate durable material archive through calibrated physical transfer and reconciliation; bench testing must determine whether that coupling preserves useful load evidence reliably enough to justify a pilot.","revision_record":{"claim_changes":["Initial P2 version; no parent proposal was revised.","Benefits are stated as causal hypotheses to be tested, not demonstrated performance."],"conceptual_changes":["Maps fast–slow storage to two physical measurement substrates: reversible mechanical latch state and permanent plastic deformation of an archive strip.","Selects transient overload evidence rather than engineering-change record coherence as the affected problem."],"evidence_changes":["No external evidence or prior-art search was used.","Specifies a blinded reference-instrument bench study as the first evidence-producing step."],"operational_changes":["Defines physical capture, maintenance-triggered docking, calibrated embossing, reconciliation, verified reset, saturation handling, authority boundaries, and rollback conditions."],"parent_version":null,"progress_targets_addressed":["Materially independent problem, intervention, and causal path","Physical and measurement-instrumentation substrate compliance","Observable fast-store, transfer, and slow-store states","Bounded non-operational first test","Explicit falsifiers, rival mechanisms, risks, and safety authority"]},"schema_version":1,"structural_mapping":[{"archetype_element":"Fast volatile store","domain_realization":"A resettable bank of proof masses, springs, and peak-hold ratchets that rapidly retains the maximum displacement reached in each monitored load channel during one service interval."},{"archetype_element":"Slow integrated store","domain_realization":"A sequenced set of annealed metal strips whose permanent embossed marks preserve calibrated interval peak bins, saturation status, recorder identity, and calibration witnesses."},{"archetype_element":"Read/write routing rule","domain_realization":"Mechanical shocks write directly into the latch rack; maintenance personnel read the rack only for pre-transfer verification, while long-horizon comparisons use the retained strips. Immediate protection remains the responsibility of separately approved safety devices."},{"archetype_element":"Transfer trigger or cadence","domain_realization":"Each authorized maintenance access triggers docking and embossing; a visible saturation flag requires transfer at the earliest separately authorized safe access."},{"archetype_element":"Consolidation transform","domain_realization":"A keyed press maps rack displacement through calibrated die geometry into permanent threshold impressions and adds zero, span, saturation, identity, and interval-registration marks."},{"archetype_element":"Promotion and eviction rule","domain_realization":"A strip joins the durable archive only after its witness marks and sequence are verified; the corresponding ratchets are reset only after that verification, evicting the prior interval from the fast store."},{"archetype_element":"Interference and overwrite guard","domain_realization":"Detents, protected rack geometry, mechanical stops, tamper evidence, and saturation flags preserve or qualify the latched state until transfer."},{"archetype_element":"Freshness and authority marker","domain_realization":"The mechanical counter and matching strip notch identify the current untransferred interval and distinguish a live latch state from an archived interval."},{"archetype_element":"Consistency reconciliation check","domain_realization":"Counter-to-notch matching, pre-transfer and post-transfer calibration impressions, reset confirmation, and gauge-template comparison expose missing intervals, duplicate strips, latch creep, incomplete transfer, and calibration drift."}],"substrate_contract":{"counterfactual_independence":"If all software, databases, algorithms, networks, digital control, workflow automation, and information-routing support are removed, inertia still moves the proof masses, ratchets still retain peaks, the docking press still plastically embosses the metal strip, and the strip remains physically readable with a gauge. Those processes supply the essential capture, transfer, and durability effects.","forbidden_channel_audit":"Governance defines who may mount or interpret the instrument, and training may reduce handling error, but neither creates the measurement. No incentive, organizational process, model, software calculation, database, or digital controller is required for shock capture, peak retention, consolidation, reset, or archival persistence. Recorder labels and custody practices support provenance only; they are not being presented as the causal substrate.","primary_allowed_process":"MEASUREMENT_INSTRUMENTATION"},"title":"Passive Peak-Hold Rack with a Calibrated Embossed-Metal Interval Archive","version":0},"schema_version":1}