{"schema_version":1,"experiment_id":"eoa_inverse_innovation_exp12_substrate_denial72_20260805","cell_id":"substrate_lineage_risk_audit__chemistry_materials","arm":"CONSTRAINED_HIGH","candidate_id":"substrate_lineage_risk_audit__chemistry_materials__CONSTRAINED_HIGH","decision":"PROPOSAL","abstention_reason":null,"proposal":{"schema_version":1,"experiment_id":"eoa_inverse_innovation_exp12_substrate_denial72_20260805","cell_id":"substrate_lineage_risk_audit__chemistry_materials","arm":"CONSTRAINED_HIGH","candidate_id":"substrate_lineage_risk_audit__chemistry_materials__CONSTRAINED_HIGH","proposal_index":1,"version":0,"title":"Self-Recording Chemical Guard Train for Reclaimed Reaction Solvent","problem":"A moisture-sensitive synthesis reuses distilled solvent recovered from multiple earlier processes. The solvent is treated as a clean foundation after bulk purity checks, although its prior contacts and regeneration history can leave water, acids, bases, dissolved metals, or other reactive traces that survive or accompany distillation. These inherited conditions remain outside the local reaction review and can consume reagents, alter selectivity, accelerate decomposition, or create unexpected heat or gas evolution.","actors":["Recovered-solvent lots","Solvent-recovery operator","Synthesis chemist","Molecular-sieve, ion-exchange, chelating, and adsorbent guard media","Moisture-sensitive reaction mixture","Laboratory process owner and environmental-health-and-safety reviewer"],"observable_state":"Before entering the reaction vessel, each reclaimed-solvent lot passes through a transparent, segmented guard cartridge containing chemically distinct capture strata. Water loading changes the mass or validated indicator state of the desiccant stratum; acid, base, metal, and polar-residue capture produces separately measurable loading or reaction fronts in compatible strata. Effluent samples provide direct chemical measurements of breakthrough and scavenger leaching. The axial and stage-specific loading pattern is a material record of conditions carried by the solvent.","consequence":"Without interception, trace contaminants inherited from the solvent's prior uses can enter the current synthesis even when the locally added reagents and apparatus pass review. A sufficiently loaded or incompatible guard train could also introduce contaminants or permit breakthrough, so the cartridge is not treated as proof of suitability.","affected_objective":"Maintain the intended chemical environment of a moisture-sensitive synthesis while preventing reactive conditions inherited through reclaimed solvent from reaching the reaction mixture.","intervention":"Install a small, solvent-compatible, replaceable guard train between the reclaimed-solvent receiver and the synthesis vessel. Its ordered strata physically adsorb or chemically bind water, acidic or basic residues, dissolved transition metals, and selected polar carryover before the solvent reaches the reaction. The strata are separable so their loading patterns preserve a coarse material trace of the inherited contaminant classes. Media selection is based on solvent compatibility and the known reaction sensitivity; unsupported contaminant classes remain explicitly outside the cartridge's protection boundary.","structural_mapping":[{"archetype_element":"Borrowed substrate","domain_realization":"A reclaimed solvent lot used as the reaction medium and therefore as a material foundation for the new synthesis."},{"archetype_element":"Substrate lineage","domain_realization":"The sequence of prior solvent contacts, pooling, distillation, storage, and transfer surfaces that can alter the reclaimed solvent."},{"archetype_element":"Origin conditions","domain_realization":"Water exposure, prior acids or bases, dissolved catalyst metals, degradation products, storage atmosphere, and regeneration conditions encountered before local use."},{"archetype_element":"Inheritance channel","domain_realization":"Contaminants that remain dissolved, co-distill, form azeotropes, desorb from containers, or persist as fine entrained material travel with the solvent into the new reaction."},{"archetype_element":"Local audit blind spot","domain_realization":"Review of fresh reagents and bulk solvent identity or boiling range stops at the recovered-solvent label and does not challenge reactive trace contaminants."},{"archetype_element":"Audit boundary extension","domain_realization":"Every molecule of reclaimed solvent crosses chemically selective guard strata before entering the reaction, exposing the inherited substrate to material challenges relevant to the current context."},{"archetype_element":"Latent condition register","domain_realization":"Stage loading, reaction-front position, retained contaminant extracts, and effluent breakthrough samples constitute a bounded physical record of contaminant classes encountered."},{"archetype_element":"Risk concentration map","domain_realization":"Disproportionate loading in one stratum identifies which inherited chemical condition consumes protection capacity and where breakthrough would begin."},{"archetype_element":"Containment or remediation","domain_realization":"Adsorption, ion exchange, coordination, or irreversible scavenging sequesters targeted contaminants upstream of the sensitive reaction."},{"archetype_element":"Residual inherited risk","domain_realization":"Uncaptured species, exhausted media, channeling, and media-derived leachables remain outside or beyond the guard train's protection and require explicit experimental evaluation."}],"mechanism_mapping":[{"mechanism_slug":"inherited_substrate_risk","role":"Frames reclaimed solvent as a carrier of prior chemical conditions rather than a neutral diluent.","counterfactual_removal":"If the solvent cannot carry chemically consequential residues from earlier contexts, lineage is not causal and ordinary solvent qualification is sufficient."},{"mechanism_slug":"traceability","role":"Spatially separated capture strata retain a material signature of which contaminant classes traversed the inherited substrate boundary.","counterfactual_removal":"Removing the separable strata would preserve generic purification but eliminate the coarse physical trace linking protection-capacity consumption to contaminant class."},{"mechanism_slug":"compatibility","role":"Media are challenged against both the solvent and the downstream reaction context so the remedy does not become a new inherited source.","counterfactual_removal":"Without compatibility testing, sorbent dissolution, catalytic surfaces, or released ions could replace the original risk with cartridge-derived contamination."},{"mechanism_slug":"containment","role":"Chemical binding and physical adsorption prevent targeted inherited contaminants from reaching the reaction.","counterfactual_removal":"Removing the binding and adsorption processes eliminates the essential protective effect even if labels, records, measurements, and review procedures remain."}],"causal_chain":["Recovered solvent encounters chemically different prior processes and regeneration conditions.","Some reactive trace species survive recovery or enter during pooled storage and transfer.","Bulk identity checks can accept the solvent while those trace species remain outside the local review boundary.","The reclaimed solvent carries the species directly into a reaction whose current sensitivity differs from the solvent's earlier use context.","The guard train forces the solvent through contaminant-selective material strata before it reaches the reaction.","Adsorption, desiccation, ion exchange, or coordination immobilizes targeted species, while stage loading records where protection capacity is being consumed.","Treated solvent reaches the reaction with the targeted inheritance channels physically interrupted; unsupported contaminants and breakthrough remain residual risks."],"baseline":"The reclaimed solvent is redistilled, stored, and accepted using the facility's existing bulk identity and purity checks, then transferred directly to the synthesis without a contaminant-selective guard train.","nearest_rivals":["Use qualified virgin solvent and avoid the reclaimed substrate entirely.","Repeat fractional distillation under tighter water and atmosphere control.","Measure each lot with Karl Fischer titration, acidity or basicity tests, elemental analysis, and chromatography, then decide whether to use it.","Run a small reaction-compatibility assay on every reclaimed lot before charging the main reaction.","Use one undifferentiated adsorbent or desiccant bed without separated capture functions or a material loading record."],"remaining_contrastive_claim":"Relative to redistillation alone, the segmented guard train is causally useful only when reaction-relevant contaminants survive recovery and are selectively retained without harmful leaching. Relative to measurement-only qualification, it directly interrupts targeted chemical inheritance channels, but it does not address species outside the selected media's capture envelope.","authority_safety":{"decision_authority":"The laboratory process owner may authorize bench evaluation only after review by the responsible chemist and environmental-health-and-safety function; production use or scale-up requires separate approval.","authorized_first_step":"Construct and test a small, pressure-limited cartridge with mutually compatible media using an approved non-production solvent sample and predefined benign contaminant challenges.","excluded_actions":["Charging guard-treated solvent into a production or safety-critical reaction","Scaling the cartridge or connecting it to pressurized plant transfer equipment","Combining media with unverified chemical compatibility","Regenerating loaded media","Treating indicator state or sorbent loading as proof that all contaminant classes are absent","Using pyrophoric, explosive, acutely toxic, or otherwise unapproved challenge materials"],"halt_rollback":"Stop on unexpected temperature rise, pressure increase, discoloration inconsistent with the validated indicator response, media swelling, flow restriction, solvent loss, or detected leaching. Isolate the cartridge, retain samples for characterization, dispose of loaded media through the approved waste route, and revert to qualified virgin solvent or the existing validated solvent process."},"negative_tests":{"strongest_counterevidence":"Recovered-solvent lots with different prior histories show no reproducible difference in trace-contaminant measurements or in an approved sensitivity assay, while local reagents or apparatus explain the observed failures.","problem_falsifier":"The suspect failures persist with qualified virgin solvent and do not follow reclaimed-solvent identity, recovery history, or measured contaminant burden.","intervention_falsifier":"Target contaminants break through at the cartridge inlet concentration, guard media introduce reaction-relevant leachables, or treated solvent performs no differently from untreated solvent despite confirmed contaminant capture.","risks":["Sorbent particles, binders, indicator compounds, or ions may leach into the solvent.","Mixed media may react with one another or with the solvent, producing heat, gas, or degradation products.","Finite capacity, channeling, swelling, or pressure drop may cause unrecognized breakthrough.","A cartridge tailored to known species may create false reassurance about unknown or weakly retained contaminants.","Captured hazardous material may concentrate disposal and handling risk.","The guard train may remove a needed stabilizer or alter solvent composition.","A loading pattern may be misread as precise provenance even though it identifies contaminant class, not a unique upstream source."]},"next_evidence_step":"Under an approved bench protocol, compare small aliquots of qualified solvent, representative reclaimed solvent, and the same reclaimed solvent after passage through the guard train. Apply individually controlled, benign challenges representing water, acid or base, and an approved metal-ion surrogate. Measure inlet, interstage, and outlet concentrations; check pressure, temperature, media mass or indicator response, extractable leachables, and performance in one preapproved small-scale compatibility assay. The bounded result is whether targeted species are captured without introducing a new material interference, not a scale-up or efficacy claim.","prior_art_status":"UNSEARCHED","diversity_from_prior_proposals":"No other proposals or experiment cells were inspected. This candidate realizes lineage auditing as a solvent-contacting chemical capture train whose strata retain a physical history of contaminant classes, rather than as software, documentation, or governance.","revision_record":{"parent_version":null,"progress_targets_addressed":["Preserve the inherited-substrate, origin-condition, inheritance-channel, blind-spot, boundary-extension, containment, and residual-risk structure in a chemistry and materials setting.","Make the essential intervention a direct chemical and physical process.","Specify counterfactual independence from software, reporting, incentives, authorization, and procedural enforcement.","Bound claims because prior art is unsearched."],"conceptual_changes":["Translated a lineage audit into selective material strata that both intercept inherited chemical conditions and retain a coarse physical loading record.","Limited lineage inference to contaminant classes rather than claiming unique reconstruction of upstream sources."],"operational_changes":["Defined a pressure-limited bench cartridge, explicit material-compatibility checks, halt criteria, disposal controls, and reversion to qualified solvent."],"evidence_changes":["Specified inlet, interstage, and outlet measurements, leachables checks, benign controlled challenges, and a preapproved compatibility assay."],"claim_changes":["Made protection conditional on contaminant survival, selective retention, capacity, and absence of harmful leaching.","Made no claim of novelty, prevalence, demand, or effect size."]},"substrate_contract":{"primary_allowed_process":"PHYSICAL_MATERIAL","counterfactual_independence":"The essential effect is molecular: targeted contaminants are adsorbed, exchanged, coordinated, desiccated, or irreversibly scavenged before the solvent reaches the reaction. If all software, algorithms, databases, dashboards, reports, incentives, authorization gates, and procedural enforcement are removed, solvent that physically passes through a compatible, unexhausted cartridge still loses the species captured by those material processes. Records and decisions improve stewardship but do not create the capture effect.","forbidden_channel_audit":"No algorithm selects, infers, or routes acceptable solvent; no dashboard or report performs the protection; no policy or release gate is represented as the intervention; and no sensor depends on downstream analytics or human action to remove contaminants. Indicators and effluent measurements are secondary validation features. The operative intervention is direct solvent-media contact and chemical sequestration, which remains active without those wrappers."}}}