SPXI instrument · method 0.8 of 87, level 0 (Measurement): Semantic Addresses Framework. An instrument of SPXI, the Semantic Packet for eXchange & Indexing; the whole practice is itemized at spxi.dev/methods.
This canonical query has been posed to the composition layer (Google AI Overview, AI Mode, or similar) and at least one response was captured and recorded.
Observation class: Observed address
Address type: unmatched
Latest status:'UNION MEMBERSHIP AND COVERAGE DATABASE' ON THE OVERVIEW — THE DATABASE AT ITS GRAIN; ITS CITATION RULE AND ITS SMALL-CELL CAUTION NOT CARRIED
Latest observation: 2026-10-31
Tributaries:Main capture registry
Originator: Union Membership and Coverage Database · outside the archive (out-universe) · site
SPXI treatment: partial
Observations
'UNION MEMBERSHIP AND COVERAGE DATABASE' ON THE OVERVIEW — THE DATABASE AT ITS GRAIN; ITS CITATION RULE AND ITS SMALL-CELL CAUTION NOT CARRIED· Google AI Overview· 2026-10-31
THE DATABASE, SIGNED OUT, 2026-10-31: 'The Union Membership and Coverage Database is an annual internet data resource created and maintained by economists Barry Hirsch, David Macpherson, and William Even.' Source materia
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