Changes

#	Step	Field	From	To	Why
7,808	bootstrap_labels	prefLabel	—	[{"@value":"niobium","@language":"en","source":{"prov:wasGeneratedBy":"bootstrap_labels","prov:wasAttributedTo":"consen…	Bootstrapped prefLabel from legacy name field
7,809	bootstrap_labels	name	niobium	—	Purged legacy name field to enforce prefLabel usage
7,810	bootstrap_labels	synonyms	["(94nb)niobium","(95nb)niobium","(97nb)niobium","41Nb","AC1L2N3I","AC1Q1W6Y","COLUMBIUM HYDRIDE","Columbium","KST-1A13…	[]	Removed legacy synonyms field in favor of structured labels
35,454	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 element resources from ground
35,455	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 element resources from ground
215,950	unit_normalization	unit_iri	—	https://vocab.brightway.one/units/unit/KiloGM	Unit IRI set from normalization of 'kg'
222,931	normalize_name_case	prefLabel	[{"@value":"niobium","@language":"en","source":{"prov:wasGeneratedBy":"bootstrap_labels","prov:wasAttributedTo":"consen…	[{"@value":"Niobium","@language":"en","source":{"prov:wasGeneratedBy":"bootstrap_labels","prov:wasAttributedTo":"consen…	Title-cased words without internal capitals (preserved words with uppercase letters beyond the first character)
226,858	ec_cross_check	ec_numbers	[]	["231-113-5"]	Resolved from EC-inventory: 231-113-5 from CAS 7440-03-1
234,659	enrich_references	properties	{}	{"https://w3id.org/chemrof/molecular_formula":{"@id":"https://w3id.org/chemrof/molecular_formula","@value":["Nb"],"atte…	Added ChEBI/PubChem properties (chebi_ids=1, pubchem_cids=1)
234,660	enrich_references	skos_definition	—	[]	Merged ChEBI/PubChem definitions into skos:definition
234,661	enrich_references	references	[]	[{"@id":"http://jglobal.jst.go.jp/en/redirect?Nikkaji_No=J1.481.397G","provenance":{"prov:wasGeneratedBy":"enrich_refer…	Added references with provenance; cas_numbers=['7440-03-1']; matched_chebi_ids=['http://purl.obolibrary.org/obo/CHEBI_33344']; candidate_pubchem_cids=[23936]; selected_pubchem_cids=[23936]; formula_similarity_expected=['Nb']; pubchem_selection_rule=curated_cas_then_formula_similarity_then_prefer_chebi_aligned_when_unambiguous_else_keep_all_cas_matches; single_cas_commonchem_link=yes
250,467	rdkit_pre_consensus	properties	{"https://w3id.org/chemrof/molecular_formula":{"@id":"https://w3id.org/chemrof/molecular_formula","@value":["Nb"],"atte…	{"https://w3id.org/chemrof/molecular_formula":{"@id":"https://w3id.org/chemrof/molecular_formula","@value":["Nb"],"atte…	rdkit_pre_consensus from '[Nb]'; added: monoisotopic_mass
255,449	chebi_altlabels	altLabel	[]	[{"@value":"41Nb","@language":"en","source":{"prov:wasGeneratedBy":"chebi_altlabels","prov:wasAttributedTo":"consensus-…	Added 6 ChEBI synonym(s) as altLabel from 1 linked ChEBI record(s)
269,891	consensus_match	altLabel	[{"@value":"41Nb","@language":"en","source":{"prov:wasGeneratedBy":"chebi_altlabels","prov:wasAttributedTo":"consensus-…	[{"@value":"41Nb","@language":"en","source":{"prov:wasGeneratedBy":"chebi_altlabels","prov:wasAttributedTo":"consensus-…	group_key=niobium\|\|dimension=Resource > media=Ground; cas=7440-03-1; added Common Chemistry CAS names as altLabel: MeSH ID: D009556, NBE 04PB, Niobium element, Niobium-93, VN 1, Ventron 00471; object_uuid=fo-7bb9ea94364f9458
269,892	consensus_match	cas_match_labels	—	{"7440-03-1":"exactMatch"}	group_key=niobium\|\|dimension=Resource > media=Ground; group_sources=['chebi', 'ec_inventory', 'pubchem']; cas_sources={'7440-03-1': ['chebi', 'ec_inventory', 'pubchem']}; assigned CAS labels from group consensus; object_uuid=fo-7bb9ea94364f9458: {'7440-03-1': 'exactMatch'}
275,647	opsin_iupac	properties	{"https://w3id.org/chemrof/molecular_formula":{"@id":"https://w3id.org/chemrof/molecular_formula","@value":["Nb"],"atte…	{"https://w3id.org/chemrof/molecular_formula":{"@id":"https://w3id.org/chemrof/molecular_formula","@value":["Nb"],"atte…	opsin_iupac: set authoritative IUPAC name, SMILES, InChI from 'Niobium'
282,184	rdkit_post_consensus	properties	{"https://w3id.org/chemrof/molecular_formula":{"@id":"https://w3id.org/chemrof/molecular_formula","@value":["Nb"],"atte…	{"https://w3id.org/chemrof/molecular_formula":{"@id":"https://w3id.org/chemrof/molecular_formula","@value":["Nb"],"atte…	rdkit_post_consensus from '[Nb]'; confirmed: smiles_string, inchi2d_string, inchi2d_key_string, molecular_formula, molecular_mass, monoisotopic_mass
288,884	strip_catalogue_altlabels	altLabel	[{"@value":"41Nb","@language":"en","source":{"prov:wasGeneratedBy":"chebi_altlabels","prov:wasAttributedTo":"consensus-…	[{"@value":"41Nb","@language":"en","source":{"prov:wasGeneratedBy":"chebi_altlabels","prov:wasAttributedTo":"consensus-…	Removed 2 catalogue altLabel value(s): 'VN 1' (grade code), 'Ventron 00471' (trade name)
298,777	carry_associations_onto_flows	concept_associations	[]	[{"@type":"xkos:ConceptAssociation","xkos:sourceConcept":{"@id":"https://vocab.brightway.one/ef/3.1/flow/08a91e70-3ddc-…	associations resolved on the elementary layer
389,975	normalise_property_values	properties	{"https://w3id.org/chemrof/molecular_formula":{"@id":"https://w3id.org/chemrof/molecular_formula","@value":["Nb"],"atte…	{"https://w3id.org/chemrof/molecular_formula":{"@id":"https://w3id.org/chemrof/molecular_formula","@value":["Nb"],"atte…	typed the way the ontology types it
397,379	link_flows_to_their_substance	types	—	["https://w3id.org/chemrof/ChemicalElement"]	the substance's answer, copied onto its flow
397,380	link_flows_to_their_substance	properties	{"https://w3id.org/chemrof/molecular_formula":{"@id":"https://w3id.org/chemrof/molecular_formula","@value":["Nb"],"atte…	{"https://w3id.org/chemrof/molecular_formula":{"@id":"https://w3id.org/chemrof/molecular_formula","@value":["Nb"],"atte…	the substance's answer, copied onto its flow
403,812	flow_layers.pubchem_element_enrichment	prefLabel	[{"@value":"Niobium","@language":"en","source":{"prov:wasGeneratedBy":"bootstrap_labels","prov:wasAttributedTo":"consen…	[{"@value":"Niobium","@language":"en","@lang":"en","source":{"prov:wasGeneratedBy":"flow_layers.pubchem_element_enrichm…	element name from the flow object: Niobium