BrainTrust Investment Lab › SS3 — Extract System › sec_cik
sec_cik — the SS3 walk
The SEC's own identity register — 49,270 rows binding company names to CIK numbers. Identity is where financial data goes wrong first, so the resolver the star joins on is measured like a first-class source, not treated as a lookup.
One source per sheet; every step CERTIFIED or OWED by BrainTrust Staff, matched against the book’s page.
steps certified
7 of 7
step format · shred-or-persist decided per payload ✓ CERTIFIED · p.454
step door · file-or-stream declared, bulk-first, the door-shape CITED from the registry ✓ CERTIFIED · p.454
step restart · the load restarts at declared points -- proven where the house already has the… ✓ CERTIFIED · p.454
step file_saved · the extract file is SAVED with its digest -- rerun without touching the source ✓ CERTIFIED · p.454
step transfer · compression and encryption posture declared ✓ CERTIFIED · p.454-455
step rowcounts · row counts compared before and after ✓ CERTIFIED · p.454
step source_impact · the source-system courtesy contract ✓ CERTIFIED · p.453-454