Changes

#	Step	Field	From	To	Why
23,399	bootstrap_labels	prefLabel	—	[{"@value":"ytterbium","@language":"en","source":{"prov:wasGeneratedBy":"bootstrap_labels","prov:wasAttributedTo":"cons…	Bootstrapped prefLabel from legacy name field
23,400	bootstrap_labels	name	ytterbium	—	Purged legacy name field to enforce prefLabel usage
23,401	bootstrap_labels	synonyms	["(169yb)ytterbium","(178yb)ytterbium","70Yb","AC1L2N4W","KST-1A1428","KST-1A4101","YB","YB2","yterbio"]	[]	Removed legacy synonyms field in favor of structured labels
109,534	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
109,535	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
220,669	unit_normalization	unit_iri	—	https://vocab.brightway.one/units/unit/KiloGM	Unit IRI set from normalization of 'kg'
226,319	normalize_name_case	prefLabel	[{"@value":"ytterbium","@language":"en","source":{"prov:wasGeneratedBy":"bootstrap_labels","prov:wasAttributedTo":"cons…	[{"@value":"Ytterbium","@language":"en","source":{"prov:wasGeneratedBy":"bootstrap_labels","prov:wasAttributedTo":"cons…	Title-cased words without internal capitals (preserved words with uppercase letters beyond the first character)
227,092	ec_cross_check	ec_numbers	[]	["231-173-2"]	Resolved from EC-inventory: 231-173-2 from CAS 7440-64-4
247,902	enrich_references	properties	{}	{"https://w3id.org/chemrof/molecular_formula":{"@id":"https://w3id.org/chemrof/molecular_formula","@value":["Yb"],"atte…	Added ChEBI/PubChem properties (chebi_ids=1, pubchem_cids=1)
247,903	enrich_references	skos_definition	—	[]	Merged ChEBI/PubChem definitions into skos:definition
247,904	enrich_references	references	[]	[{"@id":"gmelin:16320","provenance":{"prov:wasGeneratedBy":"enrich_references.chebi_xrefs","prov:wasAttributedTo":"cons…	Added references with provenance; cas_numbers=['7440-64-4']; matched_chebi_ids=['http://purl.obolibrary.org/obo/CHEBI_33381']; candidate_pubchem_cids=[23992]; selected_pubchem_cids=[23992]; formula_similarity_expected=['Yb']; pubchem_selection_rule=curated_cas_then_formula_similarity_then_prefer_chebi_aligned_when_unambiguous_else_keep_all_cas_matches; single_cas_commonchem_link=yes
254,296	rdkit_pre_consensus	properties	{"https://w3id.org/chemrof/molecular_formula":{"@id":"https://w3id.org/chemrof/molecular_formula","@value":["Yb"],"atte…	{"https://w3id.org/chemrof/molecular_formula":{"@id":"https://w3id.org/chemrof/molecular_formula","@value":["Yb"],"atte…	rdkit_pre_consensus from '[Yb]'; added: monoisotopic_mass
257,318	chebi_altlabels	altLabel	[]	[{"@value":"70Yb","@language":"en","source":{"prov:wasGeneratedBy":"chebi_altlabels","prov:wasAttributedTo":"consensus-…	Added 3 ChEBI synonym(s) as altLabel from 1 linked ChEBI record(s)
273,310	consensus_match	altLabel	[{"@value":"70Yb","@language":"en","source":{"prov:wasGeneratedBy":"chebi_altlabels","prov:wasAttributedTo":"consensus-…	[{"@value":"70Yb","@language":"en","source":{"prov:wasGeneratedBy":"chebi_altlabels","prov:wasAttributedTo":"consensus-…	group_key=ytterbium\|\|dimension=Resource > media=Ground; cas=7440-64-4; added Common Chemistry CAS names as altLabel: MeSH ID: D015018; object_uuid=fo-ee4a2a84192bbf4a
273,311	consensus_match	cas_match_labels	—	{"7440-64-4":"exactMatch"}	group_key=ytterbium\|\|dimension=Resource > media=Ground; group_sources=['chebi', 'ec_inventory']; cas_sources={'7440-64-4': ['chebi', 'ec_inventory']}; assigned CAS labels from group consensus; object_uuid=fo-ee4a2a84192bbf4a: {'7440-64-4': 'exactMatch'}
279,550	opsin_iupac	properties	{"https://w3id.org/chemrof/molecular_formula":{"@id":"https://w3id.org/chemrof/molecular_formula","@value":["Yb"],"atte…	{"https://w3id.org/chemrof/molecular_formula":{"@id":"https://w3id.org/chemrof/molecular_formula","@value":["Yb"],"atte…	opsin_iupac: set authoritative IUPAC name, SMILES, InChI from 'Ytterbium'
279,786	rdkit_authoritative	properties	{"https://w3id.org/chemrof/molecular_formula":{"@id":"https://w3id.org/chemrof/molecular_formula","@value":["Yb"],"atte…	{"https://w3id.org/chemrof/molecular_formula":{"@id":"https://w3id.org/chemrof/molecular_formula","rdfs:label":"Molecul…	rdkit_authoritative: set definitive structural data from unique InChI
286,433	rdkit_post_consensus	properties	{"https://w3id.org/chemrof/molecular_formula":{"@id":"https://w3id.org/chemrof/molecular_formula","rdfs:label":"Molecul…	{"https://w3id.org/chemrof/molecular_formula":{"@id":"https://w3id.org/chemrof/molecular_formula","rdfs:label":"Molecul…	rdkit_post_consensus from '[Yb]'; confirmed: smiles_string, inchi2d_string, inchi2d_key_string, molecular_formula, molecular_mass, monoisotopic_mass
335,786	carry_associations_onto_flows	concept_associations	[]	[{"@type":"xkos:ConceptAssociation","xkos:sourceConcept":{"@id":"https://vocab.brightway.one/ef/3.1/flow/64b1ce30-6556-…	associations resolved on the elementary layer
393,949	normalise_property_values	properties	{"https://w3id.org/chemrof/molecular_formula":{"@id":"https://w3id.org/chemrof/molecular_formula","rdfs:label":"Molecul…	{"https://w3id.org/chemrof/molecular_formula":{"@id":"https://w3id.org/chemrof/molecular_formula","rdfs:label":"Molecul…	typed the way the ontology types it
403,217	link_flows_to_their_substance	types	—	["https://w3id.org/chemrof/ChemicalElement"]	the substance's answer, copied onto its flow
403,218	link_flows_to_their_substance	properties	{"https://w3id.org/chemrof/molecular_formula":{"@id":"https://w3id.org/chemrof/molecular_formula","rdfs:label":"Molecul…	{"https://w3id.org/chemrof/molecular_formula":{"@id":"https://w3id.org/chemrof/molecular_formula","rdfs:label":"Molecul…	the substance's answer, copied onto its flow
403,861	flow_layers.pubchem_element_enrichment	prefLabel	[{"@value":"Ytterbium","@language":"en","source":{"prov:wasGeneratedBy":"bootstrap_labels","prov:wasAttributedTo":"cons…	[{"@value":"Ytterbium","@language":"en","@lang":"en","source":{"prov:wasGeneratedBy":"flow_layers.pubchem_element_enric…	element name from the flow object: Ytterbium