Objective
Independently explore the distinct RecessionAlert inventory row for PRO>SP500 Charts from the checked-in offline snapshot without live-site requests, credentials, private account data, or canonical crawl-database mutation.
Source and provenance
Page https://recessionalert.com/spx_procharts/ bound to SHA256 sha256:9a828206a7af5e90f3ecac75b2e445167e90b15cd1310024f4499c22284384af, fetched 2026-08-22T23:38:56Z. Linked assets on row: 0. Related off-row workbook WeeklyData.xlsx sha256:fc2be5f1fc2a2e38949ae566f6e8cb4699a95562975a498fb5a53510cc40d67c (SP500 MF PROB MODEL / GEN-2 PROB MODELS; not SHA-linked on this page_url). Public close-only proxies loaded read-only from data/market.sqlite.
Disclosed rule, native span, and publication lag
Documented structure covers Gen-1 Diffusion>=2 / top-3>=90% cues, Gen-2 on-row horizons 6/17/34/68 (sibling 7/17/34/72), ST-ALGO lag 3–5 avg~4 / latch=1, and an explicit non-actionable Gen-2 disclaimer. Native observation span and publication lag are unavailable on-row; causal default is lag>=1.
Approach and variants
Nine candidate families with public proxies (^GSPC, SPY, ^VIX, IEF, BIL) plus lagged workbook DIFF/DIR/P(TOP). Twenty-nine labeled variants executed; see research/findings/1576.md and research/findings/campaigns/1576_trial_ledger.json.
Disposition
exploratory_tested_proxy — Other/Research publication only; NO-GO for native Gen-1/Gen-2/ST-ALGO/PCT parity; Gen-2 probabilities remain non-actionable per source disclaimer; not promoted to playable Indicators.