Changes

#	Step	Field	From	To	Why
25,831	bootstrap_labels	prefLabel	—	[{"@value":"natural gas","@language":"en","source":{"prov:wasGeneratedBy":"bootstrap_labels","prov:wasAttributedTo":"co…	Bootstrapped prefLabel from legacy name field
25,832	bootstrap_labels	name	natural gas	—	Purged legacy name field to enforce prefLabel usage
206,746	default_context_mapping	context	—	{"dimension":"Resource","media":"Ground"}	Mapped from context mapping for source=EF 3.1, source context Resources > Resources from ground > Non-renewable energy resources from ground
206,747	default_context_mapping	context_iri	—	https://vocab.brightway.one/flow-contexts/reso-grou	Mapped from context mapping for source=EF 3.1, source context Resources > Resources from ground > Non-renewable energy resources from ground
221,079	unit_normalization	unit_iri	—	https://vocab.brightway.one/units/unit/MegaJ	Unit IRI set from normalization of 'MJ'
226,659	normalize_name_case	prefLabel	[{"@value":"natural gas","@language":"en","source":{"prov:wasGeneratedBy":"bootstrap_labels","prov:wasAttributedTo":"co…	[{"@value":"Natural Gas","@language":"en","source":{"prov:wasGeneratedBy":"bootstrap_labels","prov:wasAttributedTo":"co…	Title-cased words without internal capitals (preserved words with uppercase letters beyond the first character)
227,141	ec_cross_check	ec_numbers	[]	["232-343-9"]	Resolved from EC-inventory: 232-343-9 from CAS 8006-14-2
248,281	enrich_references	skos_definition	—	[]	Merged ChEBI/PubChem definitions into skos:definition
248,282	enrich_references	references	[]	[{"@id":"https://commonchemistry.cas.org/detail?cas_rn=8006-14-2","provenance":{"prov:wasGeneratedBy":"enrich_reference…	Added references with provenance; cas_numbers=['8006-14-2']; matched_chebi_ids=[]; candidate_pubchem_cids=[297]; selected_pubchem_cids=[]; 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
269,787	consensus_match	altLabel	[]	[{"@value":"Fuels, gas","@language":"en","source":{"prov:wasGeneratedBy":"consensus_match","prov:wasAttributedTo":"cons…	group_key=naturalgas\|\|dimension=Resource > media=Ground; cas=8006-14-2; added Common Chemistry CAS names as altLabel: Fuels, gas, Gas, natural, Gases, natural, MeSH ID: D059206, Natural gas, combustion, Natural gas, sweet, Natural gases, Sweet natural gas; object_uuid=fo-634eaeddc2496342
269,788	consensus_match	cas_match_labels	—	{"8006-14-2":"exactMatch"}	group_key=naturalgas\|\|dimension=Resource > media=Ground; group_sources=['ec_inventory']; cas_sources={'8006-14-2': ['ec_inventory']}; assigned CAS labels from group consensus; object_uuid=fo-634eaeddc2496342: {'8006-14-2': 'exactMatch'}
384,408	carry_associations_onto_flows	concept_associations	[]	[{"@type":"xkos:ConceptAssociation","xkos:sourceConcept":{"@id":"https://vocab.brightway.one/ef/3.1/flow/fe0acd60-3ddc-…	associations resolved on the elementary layer
403,735	link_flows_to_their_substance	types	—	["https://w3id.org/chemrof/Material"]	the substance's answer, copied onto its flow