{"closest_prior_art":[{"name":"Highway-bridge process twin built from construction event logs","overlap":"Uses BIM/GIS/UAV-derived construction event logs, event and case identifiers, activity start and completion times, process discovery, process variants, and conformance checking to reconstruct and evaluate actual bridge-construction processes.","remaining_difference":"The reported events are schedule-level activities with day-scale timestamps. The source does not disclose a governed append-only substrate of component-, connection-, support-, inspection-, correction-, and release-level assertions; separate occurrence and knowledge times; correction lineage; frontier-visible temporary-load-path and decision-time projections; or deterministic rebuild-and-diff.","source_ids":["SRC2"]},{"name":"FHWA Bridge Information Modeling information exchanges","overlap":"Defines construction-status, inspection, erection-analysis, and as-built information exchanges; construction status can reference bridge components and modifications, while inspection models include recorded dates, users, systems, and elements.","remaining_difference":"The exchanges are models or reports rather than bounded canonical field events. They do not make all stage and load-path views replayable from an append-only, dual-time history with idempotency, correction lineage, explicit partial-order semantics, projection frontiers, and preserved release-time knowledge.","source_ids":["SRC1"]},{"name":"Event Sourcing architecture pattern","overlap":"Provides the proposal's generic computational core: immutable append-only events as the system of record, compensating events, replay, materialized read-only projections, versioning, ordering, idempotent duplicate handling, snapshots, and historical reconstruction.","remaining_difference":"It supplies no bridge-erection event contract, structural-component identity, physical-precedence model, temporary-load-path projector, hold-point evidence semantics, engineering validation, or construction authority controls.","source_ids":["SRC3"]},{"name":"AASHTO/NSBA Steel Bridge Erection Guide Specification practice","overlap":"Establishes minimum requirements for safe and accurate steel-bridge assembly and allocates duties among erectors, contractors, design and erection engineers, fabricators, inspectors, and owner agencies.","remaining_difference":"The official description concerns plans, responsibilities, and safe execution; it does not disclose canonical append-only records of actual physical and evidentiary transitions or rebuildable, frontier-visible decision-time load-path projections.","source_ids":["SRC4"]}],"contrastive_claim_falsifier":"The contrastive claim is falsified if an existing bridge-erection standard, product, or controlled project record already makes bounded component, support, connection, strength, survey, load-transfer, correction, and release assertions the immutable historical substrate and can deterministically rebuild both the temporary-load-path state and the evidence known at each hold point, including late, duplicate, superseded, and conflicting assertions, without discretionary interpretation.","contrastive_claim_remaining":"For staged bridge erection, the remaining distinction is the governed combination—not its individual software mechanisms—of component-level physical and evidentiary events as the append-only historical authority, dual occurrence/knowledge time, correction lineage and partial-order semantics, plus version-pinned, frontier-visible temporary-load-path and hold-point projections that preserve release-time knowledge and can be discarded and rebuilt without editing history.","experiment_id":"eoa_inverse_innovation_exp13_second_slot_policy60_20260806","gates":{"adequate_source_search":{"rationale":"Four required lanes were searched using direct wording, construction-process and as-built synonyms, bridge BIM/erection practices, and event-sourcing component combinations. Exactly four opened direct sources from four publishers were retained, including government guidance, an official industry source, primary research, and first-party technical guidance. The bounded search found the principal domain and mechanism neighbors but no direct disclosure of their full combination.","source_ids":["SRC1","SRC2","SRC3","SRC4"],"status":"PASS"},"bounded_next_test":{"rationale":"The proposed read-only reconstruction is limited to one completed segment, one historical hold point, at most 45 archived records, one event contract, one pinned projector, and four explicit fixtures. It has observable comparison outputs and stop conditions and does not control construction.","source_ids":["SRC1","SRC2","SRC3","SRC4"],"status":"PASS"},"distinct_testable_claim":{"rationale":"The claim is distinguishable from bridge BIM, process mining, erection-control guidance, and generic event sourcing by requiring their specific governed combination. A historical replay can test whether it reconstructs component, support, evidence, correction, and knowledge-time state more deterministically than the signed package.","source_ids":["SRC1","SRC2","SRC3","SRC4"],"status":"PASS"},"no_obvious_safety_or_authority_stop":{"rationale":"A read-only shadow ledger for completed work presents no obvious stop if existing records remain authoritative, projections cannot issue field instructions, designated engineering authorities control any later use, access is purpose-limited, and ambiguity or disagreement triggers halt and disposal. Event-sourcing guidance nevertheless flags complexity, eventual consistency, persistent erroneous events, and personal-data deletion conflicts, so the stated quarantine, redaction, and non-authority controls are material.","source_ids":["SRC3","SRC4"],"status":"PASS"},"supported_problem":{"rationale":"Primary research reports fragmented construction-process data, limited and unreliable actual-time information in 4D BIM, and difficulty understanding handwritten bridge logs. FHWA separately defines construction-status, inspection, erection-analysis, and as-built exchanges, with component references optional. This supports fragmentation and reconstruction burden, but the retained sources do not directly establish that engineers routinely cannot reproduce every safety-critical bridge hold-point load path.","source_ids":["SRC1","SRC2"],"status":"PASS"}},"prior_art_disposition":"ADJACENT_PRIOR_ART","problem_evidence":{"finding":"The general information problem is visible: actual construction-process evidence can be fragmented, traditional BIM often represents planned rather than reliable actual time, and bridge construction status, inspection, erection analysis, and as-built information are handled as separate exchanges. Evidence is indirect for the proposal's strongest bridge-safety assertion about inability to reconstruct a precise past temporary load path at each hold point.","source_ids":["SRC1","SRC2"],"status":"PARTLY_SUPPORTED"},"research_id":"eoa_inverse_innovation_exp13_light_screen_20260806","schema_version":1,"screen_id":"E13P032","screen_survival":true,"search_lanes":{"component_combination":{"no_result_note":null,"queries":["construction event sourcing 4D BIM append-only ledger replay","construction digital twin event log bitemporal provenance stage reconstruction","construction digital twin event sourcing append-only replay BIM"],"source_ids":["SRC2","SRC3"]},"direct_problem_and_intervention":{"no_result_note":null,"queries":["bridge erection actual sequence temporary supports records hold point as-built stage reconstruction","bridge erection temporary supports inspection records sequence","as-built erection sequence bridge construction monitoring"],"source_ids":["SRC1","SRC4"]},"products_practices_and_standards":{"no_result_note":null,"queries":["AASHTO Steel Bridge Erection Guide Specification requirements erection sequence","site:dot.ca.gov bridge erection temporary supports records procedures inspection hold point","site:fhwa.dot.gov construction status model bridge BIM inspection model"],"source_ids":["SRC1","SRC4"]},"synonyms_and_historical_terms":{"no_result_note":null,"queries":["4D BIM actual construction progress event log bridge process mining","process mining construction event log BIM bridge actual progress","highway bridge construction process twin progress logs"],"source_ids":["SRC1","SRC2"]}},"sources":[{"claims_supported":["FHWA defines separate construction-status, inspection, erection-analysis, and as-built exchanges for bridge projects.","The construction-status exchange may reference specific bridge components, while the inspection model records condition at one or multiple times with date and user information.","The source does not describe these exchanges as a canonical replayable event history."],"publisher":"Federal Highway Administration","source_id":"SRC1","source_type":"OFFICIAL_GUIDANCE","title":"Bridge Information Modeling Standardization, Volume I: Information Exchanges","url":"https://www.fhwa.dot.gov/bridge/pubs/hif16011/hif16011b.pdf"},{"claims_supported":["Construction-management process data and timestamped logs can be fragmented, while traditional BIM time commonly reflects plans and may be incomplete, inaccurate, or unreliable for actual site activity.","The primary study formed process twins from construction event logs covering 13 bridges and used process mining and conformance checking to reproduce and evaluate actual process variants.","The demonstrated events are coarse construction activities rather than safety-critical temporary-load-path transitions."],"publisher":"MDPI","source_id":"SRC2","source_type":"PRIMARY_RESEARCH","title":"Enhancing Construction Management Digital Twins Through Process Mining of Progress Logs","url":"https://www.mdpi.com/2071-1050/16/22/10064"},{"claims_supported":["Event sourcing stores immutable events in an append-only system of record and derives current state through replay and read-only materialized projections.","The pattern addresses compensating corrections, event and schema versioning, ordering, snapshots, idempotent duplicate handling, and projection drift.","The guidance identifies complexity, eventual consistency, persistent-error, and personal-data-retention risks."],"publisher":"Microsoft","source_id":"SRC3","source_type":"OFFICIAL_GUIDANCE","title":"Event Sourcing Pattern","url":"https://learn.microsoft.com/en-us/azure/architecture/patterns/event-sourcing"},{"claims_supported":["AASHTO's fourth-edition Steel Bridge Erection Guide Specification establishes minimum requirements for safe and accurate assembly.","The guide assigns responsibilities among erectors, contractors, design engineers, erection engineers, fabricators, inspectors, and owner agencies.","The official announcement does not describe replayable actual-state or decision-time event projections."],"publisher":"American Association of State Highway and Transportation Officials","source_id":"SRC4","source_type":"OFFICIAL_GUIDANCE","title":"AASHTO Issues New Steel Bridge Assembly Spec Guide","url":"https://aashtojournal.transportation.org/aashto-issues-new-steel-bridge-assembly-spec-guide/"}],"world_novelty_boundary":"This coarse public-web screen found adjacent bridge information-exchange and process-twin work plus established generic event-sourcing mechanisms, but no retained source disclosed their full bridge-erection load-path combination. The result does not establish world novelty, patentability, market size, expert acceptance, realized value, or absence of undiscovered products, project systems, standards, papers, patents, or nonpublic practice."}