diff --git a/supabase/migrations/20260729230000_create_catalog_valuations.sql b/supabase/migrations/20260729230000_create_catalog_valuations.sql
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index 0000000..29c9923
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+-- Create catalog_valuations: persisted valuation history per catalog
+-- (recoupable/chat#1889 row 15 — the keystone of the 2026-07-29 reorder).
+--
+-- The estimated catalog value is currently recomputed live on every read
+-- (GET /api/catalogs/{id}/measurements derives the band at read time) and
+-- stored nowhere. That costs the product its retention hook — a weekly report
+-- can never say "your number moved" without two numbers to compare — and costs
+-- sales a sortable Attio Catalog Value field (today hand-priced per lead).
+--
+-- One row per band computation, at most one per catalog per day from the
+-- read path (valuation runs always insert). History is the point: columns on
+-- catalogs would only ever hold the latest value.
+--
+-- Written by api: runValuationHandler (funnel + onboarding seeding) and the
+-- measurements read path (daily-deduped). Read by
+-- GET /api/catalogs/{catalogId}/valuations (contract: docs#279).
+--
+-- FK to catalogs with ON DELETE CASCADE: a valuation row is meaningless
+-- without its catalog, unlike the loose-id bookkeeping tables.
+
+CREATE TABLE IF NOT EXISTS public.catalog_valuations (
+    id                  UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    catalog_id          UUID NOT NULL REFERENCES public.catalogs(id) ON DELETE CASCADE,
+    low                 NUMERIC NOT NULL,   -- band low, USD
+    mid                 NUMERIC NOT NULL,   -- band midpoint, USD
+    high                NUMERIC NOT NULL,   -- band high, USD
+    measured_song_count INTEGER  NOT NULL,  -- songs measured in the underlying capture
+    total_streams       BIGINT   NOT NULL,  -- whole-catalog lifetime streams at measurement
+    measured_at         TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT now(),
+    created_at          TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT now()
+);
+
+-- The read is always "latest rows for one catalog".
+CREATE INDEX IF NOT EXISTS catalog_valuations_catalog_measured_idx
+  ON public.catalog_valuations (catalog_id, measured_at DESC);