Changes

#	Step	Field	From	To	Why
17,949	bootstrap_labels	prefLabel	—	[{"@value":"1-nitrosohydantoin","@language":"en","source":{"prov:wasGeneratedBy":"bootstrap_labels","prov:wasAttributed…	Bootstrapped prefLabel from legacy name field
17,950	bootstrap_labels	name	1-nitrosohydantoin	—	Purged legacy name field to enforce prefLabel usage
17,951	bootstrap_labels	synonyms	["1-nitroso-2,4-imidazolidinedione","1-nitrosoimidazolidine-2,4-dione","2,4-Imidazolidinedione, 1-nitroso-","AC1L3PSV",…	[]	Removed legacy synonyms field in favor of structured labels
57,830	default_context_mapping	context	—	{"dimension":"Environmental","media":"Air","indoor":"Unknown"}	Mapped from context mapping for source=EF 3.1, source context Emissions > Emissions to air > Emissions to air, indoor
57,831	default_context_mapping	context_iri	—	https://vocab.brightway.one/flow-contexts/envi-air-indr-unkn	Mapped from context mapping for source=EF 3.1, source context Emissions > Emissions to air > Emissions to air, indoor
78,224	default_context_mapping	context	—	{"dimension":"Environmental","media":"Air","strata":"Aircraft cruise height"}	Mapped from context mapping for source=EF 3.1, source context Emissions > Emissions to air > Emissions to lower stratosphere and upper troposphere
78,225	default_context_mapping	context_iri	—	https://vocab.brightway.one/flow-contexts/envi-air-aicrhe	Mapped from context mapping for source=EF 3.1, source context Emissions > Emissions to air > Emissions to lower stratosphere and upper troposphere
87,804	default_context_mapping	context	—	{"dimension":"Environmental","media":"Water","water_body":"Long-term"}	Mapped from context mapping for source=EF 3.1, source context Emissions > Emissions to water > Emissions to water, unspecified (long-term)
87,805	default_context_mapping	context_iri	—	https://vocab.brightway.one/flow-contexts/envi-wate-lote	Mapped from context mapping for source=EF 3.1, source context Emissions > Emissions to water > Emissions to water, unspecified (long-term)
87,806	default_context_mapping	context	—	{"dimension":"Environmental","media":"Water","water_body":"Unknown"}	Mapped from context mapping for source=EF 3.1, source context Emissions > Emissions to water > Emissions to water, unspecified
87,807	default_context_mapping	context_iri	—	https://vocab.brightway.one/flow-contexts/envi-wate-unkn	Mapped from context mapping for source=EF 3.1, source context Emissions > Emissions to water > Emissions to water, unspecified
87,808	default_context_mapping	context	—	{"dimension":"Environmental","media":"Ground","geography":"Non-agricultural"}	Mapped from context mapping for source=EF 3.1, source context Emissions > Emissions to soil > Emissions to non-agricultural soil
87,809	default_context_mapping	context_iri	—	https://vocab.brightway.one/flow-contexts/envi-grou-noag	Mapped from context mapping for source=EF 3.1, source context Emissions > Emissions to soil > Emissions to non-agricultural soil
87,810	default_context_mapping	context	—	{"dimension":"Environmental","media":"Water","water_body":"Ocean"}	Mapped from context mapping for source=EF 3.1, source context Emissions > Emissions to water > Emissions to sea water
87,811	default_context_mapping	context_iri	—	https://vocab.brightway.one/flow-contexts/envi-wate-ocea	Mapped from context mapping for source=EF 3.1, source context Emissions > Emissions to water > Emissions to sea water
87,856	default_context_mapping	context	—	{"dimension":"Environmental","media":"Ground","geography":"Agricultural"}	Mapped from context mapping for source=EF 3.1, source context Emissions > Emissions to soil > Emissions to agricultural soil
87,857	default_context_mapping	context_iri	—	https://vocab.brightway.one/flow-contexts/envi-grou-agri	Mapped from context mapping for source=EF 3.1, source context Emissions > Emissions to soil > Emissions to agricultural soil
87,858	default_context_mapping	context	—	{"dimension":"Environmental","media":"Ground","geography":"Unknown"}	Mapped from context mapping for source=EF 3.1, source context Emissions > Emissions to soil > Emissions to soil, unspecified
87,859	default_context_mapping	context_iri	—	https://vocab.brightway.one/flow-contexts/envi-grou-unkn	Mapped from context mapping for source=EF 3.1, source context Emissions > Emissions to soil > Emissions to soil, unspecified
87,860	default_context_mapping	context	—	{"dimension":"Environmental","media":"Air","strata":"Unknown"}	Mapped from context mapping for source=EF 3.1, source context Emissions > Emissions to air > Emissions to air, unspecified
87,861	default_context_mapping	context_iri	—	https://vocab.brightway.one/flow-contexts/envi-air-unkn	Mapped from context mapping for source=EF 3.1, source context Emissions > Emissions to air > Emissions to air, unspecified
87,862	default_context_mapping	context	—	{"dimension":"Environmental","media":"Air","strata":"Long-term"}	Mapped from context mapping for source=EF 3.1, source context Emissions > Emissions to air > Emissions to air, unspecified (long-term)
87,863	default_context_mapping	context_iri	—	https://vocab.brightway.one/flow-contexts/envi-air-lote	Mapped from context mapping for source=EF 3.1, source context Emissions > Emissions to air > Emissions to air, unspecified (long-term)
87,864	default_context_mapping	context	—	{"dimension":"Environmental","media":"Air","strata":"Ground level","population_density":"Urban (>1000 people/square mil…	Mapped from context mapping for source=EF 3.1, source context Emissions > Emissions to air > Emissions to urban air close to ground
87,865	default_context_mapping	context_iri	—	https://vocab.brightway.one/flow-contexts/envi-air-grle-ur10pesq	Mapped from context mapping for source=EF 3.1, source context Emissions > Emissions to air > Emissions to urban air close to ground
87,866	default_context_mapping	context	—	{"dimension":"Environmental","media":"Air","strata":"Medium stack, <150 meters","population_density":"Rural (<1000 peop…	Mapped from context mapping for source=EF 3.1, source context Emissions > Emissions to air > Emissions to non-urban air or from high stacks
87,867	default_context_mapping	context_iri	—	https://vocab.brightway.one/flow-contexts/envi-air-mest15me-ru10pesq	Mapped from context mapping for source=EF 3.1, source context Emissions > Emissions to air > Emissions to non-urban air or from high stacks
87,868	default_context_mapping	context	—	{"dimension":"Environmental","media":"Water","water_body":"Surface water"}	Mapped from context mapping for source=EF 3.1, source context Emissions > Emissions to water > Emissions to fresh water
87,869	default_context_mapping	context_iri	—	https://vocab.brightway.one/flow-contexts/envi-wate-suwa	Mapped from context mapping for source=EF 3.1, source context Emissions > Emissions to water > Emissions to fresh water
219,217	unit_normalization	unit_iri	—	https://vocab.brightway.one/units/unit/KiloGM	Unit IRI set from normalization of 'kg'
243,992	enrich_references	properties	{}	{"https://w3id.org/chemrof/molecular_formula":{"@id":"https://w3id.org/chemrof/molecular_formula","@value":["C3H3N3O3"]…	Added ChEBI/PubChem properties (chebi_ids=0, pubchem_cids=1)
243,993	enrich_references	skos_definition	—	[]	Merged ChEBI/PubChem definitions into skos:definition
243,994	enrich_references	references	[]	[{"@id":"http://jglobal.jst.go.jp/en/redirect?Nikkaji_No=J2.780D","provenance":{"prov:wasGeneratedBy":"enrich_reference…	Added references with provenance; cas_numbers=['42579-28-2']; matched_chebi_ids=[]; candidate_pubchem_cids=[93239, 898470]; selected_pubchem_cids=[93239]; formula_similarity_expected=[]; pubchem_selection_rule=curated_cas_then_formula_similarity_then_prefer_chebi_aligned_when_unambiguous_else_keep_all_cas_matches; single_cas_commonchem_link=yes
253,161	rdkit_pre_consensus	properties	{"https://w3id.org/chemrof/molecular_formula":{"@id":"https://w3id.org/chemrof/molecular_formula","@value":["C3H3N3O3"]…	{"https://w3id.org/chemrof/molecular_formula":{"@id":"https://w3id.org/chemrof/molecular_formula","@value":["C3H3N3O3"]…	rdkit_pre_consensus from 'C1C(=O)NC(=O)N1N=O'; added: molecular_mass, monoisotopic_mass
259,275	consensus_match	cas_match_labels	—	{"42579-28-2":"exactMatch"}	group_key=1-nitrosohydantoin\|\|dimension=Environmental > media=Air > indoor=Unknown; group_sources=['pubchem']; cas_sources={'42579-28-2': ['pubchem']}; assigned CAS labels from group consensus; object_uuid=fo-a013bbc5afe97255: {'42579-28-2': 'exactMatch'}
278,363	opsin_iupac	properties	{"https://w3id.org/chemrof/molecular_formula":{"@id":"https://w3id.org/chemrof/molecular_formula","@value":["C3H3N3O3"]…	{"https://w3id.org/chemrof/molecular_formula":{"@id":"https://w3id.org/chemrof/molecular_formula","@value":["C3H3N3O3"]…	opsin_iupac: set authoritative IUPAC name, SMILES, InChI from '1-nitrosohydantoin'
285,119	rdkit_post_consensus	properties	{"https://w3id.org/chemrof/molecular_formula":{"@id":"https://w3id.org/chemrof/molecular_formula","@value":["C3H3N3O3"]…	{"https://w3id.org/chemrof/molecular_formula":{"@id":"https://w3id.org/chemrof/molecular_formula","@value":["C3H3N3O3"]…	rdkit_post_consensus from 'O=NN1CC(=O)NC1=O'; confirmed: smiles_string, inchi2d_string, inchi2d_key_string, molecular_formula, molecular_mass, monoisotopic_mass
309,930	carry_associations_onto_flows	concept_associations	[]	[{"@type":"xkos:ConceptAssociation","xkos:sourceConcept":{"@id":"https://vocab.brightway.one/ef/3.1/flow/1f66bf51-1902-…	associations resolved on the elementary layer
320,119	carry_associations_onto_flows	concept_associations	[]	[{"@type":"xkos:ConceptAssociation","xkos:sourceConcept":{"@id":"https://vocab.brightway.one/ef/3.1/flow/3e4d5081-6556-…	associations resolved on the elementary layer
324,911	carry_associations_onto_flows	concept_associations	[]	[{"@type":"xkos:ConceptAssociation","xkos:sourceConcept":{"@id":"https://vocab.brightway.one/ef/3.1/flow/4d9a8790-3ddd-…	associations resolved on the elementary layer
324,912	carry_associations_onto_flows	concept_associations	[]	[{"@type":"xkos:ConceptAssociation","xkos:sourceConcept":{"@id":"https://vocab.brightway.one/ef/3.1/flow/4d9a8790-3ddd-…	associations resolved on the elementary layer
324,913	carry_associations_onto_flows	concept_associations	[]	[{"@type":"xkos:ConceptAssociation","xkos:sourceConcept":{"@id":"https://vocab.brightway.one/ef/3.1/flow/4d9a8790-3ddd-…	associations resolved on the elementary layer
324,914	carry_associations_onto_flows	concept_associations	[]	[{"@type":"xkos:ConceptAssociation","xkos:sourceConcept":{"@id":"https://vocab.brightway.one/ef/3.1/flow/4d9a8790-3ddd-…	associations resolved on the elementary layer
324,937	carry_associations_onto_flows	concept_associations	[]	[{"@type":"xkos:ConceptAssociation","xkos:sourceConcept":{"@id":"https://vocab.brightway.one/ef/3.1/flow/4d9a8790-3ddd-…	associations resolved on the elementary layer
324,938	carry_associations_onto_flows	concept_associations	[]	[{"@type":"xkos:ConceptAssociation","xkos:sourceConcept":{"@id":"https://vocab.brightway.one/ef/3.1/flow/4d9a8790-3ddd-…	associations resolved on the elementary layer
324,939	carry_associations_onto_flows	concept_associations	[]	[{"@type":"xkos:ConceptAssociation","xkos:sourceConcept":{"@id":"https://vocab.brightway.one/ef/3.1/flow/4d9a8790-3ddd-…	associations resolved on the elementary layer
324,940	carry_associations_onto_flows	concept_associations	[]	[{"@type":"xkos:ConceptAssociation","xkos:sourceConcept":{"@id":"https://vocab.brightway.one/ef/3.1/flow/4d9a8790-3ddd-…	associations resolved on the elementary layer
324,941	carry_associations_onto_flows	concept_associations	[]	[{"@type":"xkos:ConceptAssociation","xkos:sourceConcept":{"@id":"https://vocab.brightway.one/ef/3.1/flow/4d9a8790-3ddd-…	associations resolved on the elementary layer
324,942	carry_associations_onto_flows	concept_associations	[]	[{"@type":"xkos:ConceptAssociation","xkos:sourceConcept":{"@id":"https://vocab.brightway.one/ef/3.1/flow/4d9a8790-3ddd-…	associations resolved on the elementary layer
324,943	carry_associations_onto_flows	concept_associations	[]	[{"@type":"xkos:ConceptAssociation","xkos:sourceConcept":{"@id":"https://vocab.brightway.one/ef/3.1/flow/4d9a8790-3ddd-…	associations resolved on the elementary layer