fred — the SS2 walk
Macroeconomic context from the St. Louis Fed — 21.7 million observations across 845,501 series, with the whole catalog in scope rather than a convenient handful. FRED revises history as a matter of course; the walk's job is making sure a revision can never impersonate the original reading.
One source per sheet; every step CERTIFIED or OWED by BrainTrust Staff, matched against the book’s page.
steps certified
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step strategy · the CDC mode is DECLARED by LOOKUP, enum-gated against the six signed modes OWED · released, waiting on its seat · p.451-452
step audit_columns · audit columns tested, not trusted awaiting · p.452
step deletes · deletion visibility MEASURED by the mode's own instrument awaiting · p.452
step reason_codes · corrections distinguished from true updates -- candidates ENUMERATED, every one… awaiting · p.451