{"ok":true,"requestId":"f997aae34d1742d67c2d2ad4","graph":{"graph_id":"claude-hopkins","slug":"claude-hopkins","canonical_slug":"claude-hopkins","canonical_url":"https://www.fodda.ai/graphs/claude-hopkins","readme_url":"https://api.fodda.ai/v1/graphs/claude-hopkins/readme","name":"Claude C. Hopkins","description":"Legendary advertising pioneer at Lord & Thomas, author of Scientific Advertising (1923) and My Life in Advertising (1927), evaluating direct attribution, sampling CAC, reason-why copy, and marketing accountability.","curator":"Public Domain Canon / Fodda Editorial","curator_url":"","domain":"Performance Marketing & Direct Attribution","version":"2026-Q1","public_bucket":"libraries","graph_type":"expert","graph_sub_type":"Classic Digital Twin","verticals":[],"topics":["culture"],"suitable_questions":["How does Hopkins's principle of tracing ad spend to definite results audit whether a modern performance marketing campaign is genuinely acquiring profitable customers?","Why does Hopkins insist that sampling coupons must be accounted for as customer acquisition cost (CAC) rather than treated as a brand giveaway?","How does Hopkins's reason-why specificity rule diagnose why generic corporate branding platitudes fail to convert skeptical buyers?","What diagnostic test does Hopkins apply to institutional advertising spend to reveal when a marketing budget is merely funding executive vanity?"],"example_queries":["How does Hopkins's principle of tracing ad spend to definite results audit whether a modern performance marketing campaign is genuinely acquiring profitable customers?","Why does Hopkins insist that sampling coupons must be accounted for as customer acquisition cost (CAC) rather than treated as a brand giveaway?","How does Hopkins's reason-why specificity rule diagnose why generic corporate branding platitudes fail to convert skeptical buyers?","What diagnostic test does Hopkins apply to institutional advertising spend to reveal when a marketing budget is merely funding executive vanity?"],"not_suitable_for":[],"selection_summary":"Legendary advertising pioneer at Lord & Thomas, author of Scientific Advertising (1923) and My Life in Advertising (1927), evaluating direct attribution, sampling CAC, reason-why copy, and marketing accountability.","trend_count":5,"evidence_count":15,"article_count":15,"company_count":0,"derived_counts":{"trends":5,"evidence":15,"articles":15,"companies":0,"trend_count":5,"evidence_count":15,"article_count":15,"company_count":0},"last_synced":"2026-11-09T14:50:49.559Z","status":"live","deprecated":false,"freshness_status":"current","last_updated":"2026-11-09","published_date":"2026-11-09","webpage_url":null,"is_playground":false,"headline":"Legendary advertising pioneer at Lord & Thomas, author of Scientific Advertising (1923) and My Life in Advertising (1927), evaluating direct attribution, sampling CAC, reason-why copy, and marketing accountability.","subhead":"","geography":"","company":"","available_as":"","icon_url":"","portrait_url":"https://api.fodda.ai/v1/images/proxy?url=https%3A%2F%2Fv5.airtableusercontent.com%2Fv3%2Fu%2F59%2F59%2F1794261600000%2F96y5mO0ELdVGaTASr03TcQ%2FU4OVoqSS357l73DxklUprp8W2U2bKNjaICFmtc1GhJNGTf_bSyhGB42sHkowWk2eqyzagwSlphwKCMsjBSzNgsRQffwbvjALnOBj7zm1Bv3ujntbu7pEcAwSADklX9tCfk94bpD6DIPQRFrrLEto6g%2FuO1Tz0sMIMAEPLF30oQVgfViJCkjXXZSM4QwLL7qbsU","source_url":"","price_per_query":null,"what_it_does":"","key_features":"","by_the_numbers":"5 trends, 15 evidence cards","for_teams_like":"","how_to_access":"Available via MCP, API, and Chat. Use graph ID: claude-hopkins","what_contains":"","agent_prompt":"CRITICAL: Use this graph when the user is analyzing performance marketing, direct response attribution, customer acquisition cost (CAC), sampling economics, conversion copywriting, reason-why messaging, or marketing spend accountability. This graph provides Claude C. Hopkins's foundational frameworks from Scientific Advertising (1923) and My Life in Advertising (1927) to audit whether an enterprise marketing strategy produces traced economic returns or merely subsidizes executive vanity.","skill_phase":null,"skill_tool_name":null,"report_analysis":null,"core_tension":null,"matched_human_twin_slug":null,"expert_stance_quote":null,"cross_graph_signals":[]}}