{
  "schema_version": "1.0",
  "title": "Too Early To Say public claim manifest",
  "description": "A public inventory of selected claims, their source trail, available materials, verification state, and known limits.",
  "public_surfaces_note": "Each claim lists selected pages that promote or contextualize it; this field is not an exhaustive inventory of every incidental mention.",
  "last_updated": "2026-07-21",
  "run_records": [
    "https://tooearlytosay.com/evidence/outputs/known-truth-run-record.json"
  ],
  "status_definitions": {
    "material_status": {
      "runnable-package": "A public package includes the code and instructions needed to run the case.",
      "supporting-code": "Public code covers part of the analysis, but the published result is not committed as a reproducible output.",
      "article-only": "The article documents the result, but no public package currently derives the exact claim.",
      "under-reconciliation": "The claim and its public materials are being reconciled before they are presented as reproducible evidence."
    },
    "verification_status": {
      "published-case": "The case is published with a public implementation and a stated expected result.",
      "fresh-run-matched": "A fresh isolated run matched the recorded output values.",
      "release-record-pending": "Runnable code is public, but a frozen output record has not yet been committed.",
      "article-published": "The claim appears in a published article but has not cleared a public package check.",
      "not-reproduced": "Supporting code exists, but the published number is not available as a committed reproducible result.",
      "under-reconciliation": "Conflicting public surfaces or missing provenance prevent a verification claim."
    }
  },
  "claims": [
    {
      "id": "dml-planted-truth",
      "claim": "Cross-fitted double machine learning recovers 0.965 in the planted-truth simulation.",
      "display_value": "0.965",
      "population": "Simulated observations from a partially linear model",
      "geography": "Not applicable: simulation",
      "period": "Not applicable: fixed-seed Monte Carlo design",
      "data_sources": [
        "Simulated data generated by the public package"
      ],
      "method": "Cross-fitted double machine learning with Monte Carlo verification",
      "article_url": "https://tooearlytosay.com/research/methodology/validate-double-ml/",
      "public_surfaces": [
        "https://tooearlytosay.com/",
        "https://tooearlytosay.com/research/methodology/",
        "https://tooearlytosay.com/research/methodology/validate-double-ml/"
      ],
      "material_status": "runnable-package",
      "artifact_url": "https://github.com/dphdame/tooearlytosay-analysis/tree/ab78dd2a2ebbda0556314170554f5f11ab6422fa/validate-double-ml",
      "artifact_commit": "ab78dd2a2ebbda0556314170554f5f11ab6422fa",
      "output_url": null,
      "output_sha256": null,
      "run_record_url": null,
      "expected_output": "The verification routine reports a cross-fitted mean of 0.965 and a passing planted-truth check.",
      "verification_status": "release-record-pending",
      "limitation": "The planted-truth check cannot detect a confounder omitted from the controls.",
      "last_reviewed": "2026-07-21"
    },
    {
      "id": "did-staggered-adoption",
      "claim": "Group-time difference-in-differences recovers the planted average effect of 1.60.",
      "display_value": "1.60",
      "population": "Simulated panel with early, late, and never-treated cohorts",
      "geography": "Not applicable: simulation",
      "period": "Not applicable: fixed-seed panel design",
      "data_sources": [
        "Simulated panel generated by the public package"
      ],
      "method": "Group-time difference-in-differences with clean controls",
      "article_url": "https://tooearlytosay.com/research/methodology/difference-in-differences-python/",
      "public_surfaces": [
        "https://tooearlytosay.com/",
        "https://tooearlytosay.com/about/",
        "https://tooearlytosay.com/research/methodology/",
        "https://tooearlytosay.com/research/methodology/difference-in-differences-python/"
      ],
      "material_status": "runnable-package",
      "artifact_url": "https://github.com/dphdame/tooearlytosay-analysis/tree/ab78dd2a2ebbda0556314170554f5f11ab6422fa/difference-in-differences-python",
      "artifact_commit": "ab78dd2a2ebbda0556314170554f5f11ab6422fa",
      "output_url": "https://tooearlytosay.com/evidence/outputs/difference-in-differences-python-results.json",
      "output_sha256": "6b4950a95e24ed68bcaa1c47b21c536eebd22d62231e053caab895b6d7839aa6",
      "run_record_url": "https://tooearlytosay.com/evidence/outputs/known-truth-run-record.json",
      "expected_output": "The site-hosted frozen snapshot records recovery of the planted average effect by the group-time estimator.",
      "verification_status": "fresh-run-matched",
      "limitation": "The planted design does not establish parallel trends or rule out anticipation in observed policy data.",
      "last_reviewed": "2026-07-21"
    },
    {
      "id": "iv-exclusion-restriction",
      "claim": "A direct path from the instrument biases the 2SLS estimate to 2.62.",
      "display_value": "2.62",
      "population": "Simulated observations with an exclusion-restriction violation",
      "geography": "Not applicable: simulation",
      "period": "Not applicable: fixed-seed Monte Carlo design",
      "data_sources": [
        "Simulated data generated by the public package"
      ],
      "method": "Just-identified two-stage least squares with an exclusion-violation test",
      "article_url": "https://tooearlytosay.com/research/methodology/instrumental-variables-python/",
      "public_surfaces": [
        "https://tooearlytosay.com/",
        "https://tooearlytosay.com/research/methodology/instrumental-variables-python/"
      ],
      "material_status": "runnable-package",
      "artifact_url": "https://github.com/dphdame/tooearlytosay-analysis/tree/ab78dd2a2ebbda0556314170554f5f11ab6422fa/instrumental-variables-python",
      "artifact_commit": "ab78dd2a2ebbda0556314170554f5f11ab6422fa",
      "output_url": "https://tooearlytosay.com/evidence/outputs/instrumental-variables-python-results.json",
      "output_sha256": "73b331a56e1d5e48e1dee5f6819ba7409e777284a761d1a630e57a6d8a6f3d71",
      "run_record_url": "https://tooearlytosay.com/evidence/outputs/known-truth-run-record.json",
      "expected_output": "The site-hosted frozen snapshot records a biased 2SLS estimate in the exclusion-violation case.",
      "verification_status": "fresh-run-matched",
      "limitation": "First-stage diagnostics cannot test whether the instrument has a direct path to the outcome.",
      "last_reviewed": "2026-07-21"
    },
    {
      "id": "transit-mobility-desert-rate",
      "claim": "The article reports that 12% of California residential tracts are mobility deserts; the rate and tract population are under reconciliation.",
      "display_value": "12%",
      "population": "California residential census tracts",
      "geography": "California",
      "period": "Transit inputs described as 2024 data in the article; exact extract under reconciliation",
      "data_sources": [
        "Cal-ITP transit extract with conflicting raw and unique labels",
        "Census tract boundaries and joined tract population under reconciliation",
        "Grocery location input described in the articles"
      ],
      "method": "Rule-based tract classification using grocery proximity and transit access",
      "article_url": "https://tooearlytosay.com/research/transit-equity/data-quality-49-to-12/",
      "public_surfaces": [
        "https://tooearlytosay.com/research/",
        "https://tooearlytosay.com/research/transit-equity/data-quality-49-to-12/",
        "https://tooearlytosay.com/research/transit-equity/hidden-mobility-deserts/",
        "https://tooearlytosay.com/research/transit-equity/",
        "https://tooearlytosay.com/glossary/"
      ],
      "material_status": "under-reconciliation",
      "artifact_url": null,
      "artifact_commit": null,
      "output_url": null,
      "output_sha256": null,
      "run_record_url": null,
      "related_material": {
        "url": "https://github.com/dphdame/tooearlytosay-analysis/tree/3c338ae2e0aff91a33530109b8de8288c4870017/mobility-deserts",
        "note": "The pinned folder labels 64,060 records as raw and reports roughly 24,000 unique records, while the articles previously labeled 64,060 as deduplicated. It is related material, not a verified evidence artifact."
      },
      "expected_output": "A committed processed output should derive one documented raw-to-unique stop inventory, tract population, and statewide classification table.",
      "verification_status": "under-reconciliation",
      "limitation": "The article-reported 1,086-tract count and 12% rate lack a matched output, and the supporting materials still conflict over raw versus unique transit-stop counts.",
      "last_reviewed": "2026-07-21"
    },
    {
      "id": "statewide-race-food-access-direction",
      "claim": "Two articles report opposite directions for the minority-tract mobility-desert difference using ostensibly similar statewide inputs.",
      "display_value": "9.7% vs 16.9%; 13.2% vs 11.1%",
      "population": "California residential census tracts; conflicting totals of 9,033 and 9,039",
      "geography": "California",
      "period": "ACS 2018-2022 on the food-access page and ACS 2019-2023 on the transit-race page; Cal-ITP 2024 and SafeGraph 2023 as described on the pages",
      "data_sources": [
        "American Community Survey",
        "Cal-ITP GTFS",
        "SafeGraph grocery locations"
      ],
      "method": "Descriptive tract comparison and linear probability models described in the articles",
      "article_url": "https://tooearlytosay.com/research/food-security/food-access-vulnerability-paradox/",
      "public_surfaces": [
        "https://tooearlytosay.com/research/food-security/food-access-vulnerability-paradox/",
        "https://tooearlytosay.com/research/transit-equity/transit-equity-race/",
        "https://tooearlytosay.com/glossary/"
      ],
      "material_status": "under-reconciliation",
      "artifact_url": null,
      "artifact_commit": null,
      "output_url": null,
      "output_sha256": null,
      "run_record_url": null,
      "expected_output": "One documented tract universe and saved comparison table should reproduce the direction and adjusted model from shared inputs.",
      "verification_status": "under-reconciliation",
      "limitation": "The pages disagree on tract population, group counts, mobility-desert rates, and substantive direction; no matched public output resolves the conflict.",
      "last_reviewed": "2026-07-21"
    },
    {
      "id": "food-desert-snap-variation",
      "claim": "The article reports a 4.7x difference in SNAP participation across selected Santa Clara County tracts.",
      "display_value": "4.7x",
      "population": "Selected Santa Clara County census tracts",
      "geography": "Santa Clara County, California",
      "period": "Data vintages under reconciliation",
      "data_sources": [
        "Source files described in the article; inventory under reconciliation"
      ],
      "method": "Classification and spatial comparison described in the article",
      "article_url": "https://tooearlytosay.com/research/food-security/food-desert-myth/",
      "public_surfaces": [
        "https://tooearlytosay.com/",
        "https://tooearlytosay.com/about/",
        "https://tooearlytosay.com/findings/",
        "https://tooearlytosay.com/glossary/",
        "https://tooearlytosay.com/research/",
        "https://tooearlytosay.com/research/food-security/",
        "https://tooearlytosay.com/research/food-security/extended-vulnerability-index/",
        "https://tooearlytosay.com/research/food-security/food-desert-myth/"
      ],
      "material_status": "under-reconciliation",
      "artifact_url": null,
      "artifact_commit": null,
      "output_url": null,
      "output_sha256": null,
      "run_record_url": null,
      "related_material": {
        "url": "https://github.com/dphdame/tooearlytosay-analysis/tree/3c338ae2e0aff91a33530109b8de8288c4870017/food-desert-myth",
        "note": "This folder does not currently derive the published claim and is not designated as its evidence artifact."
      },
      "expected_output": "A public table deriving the reported comparison is not yet available.",
      "verification_status": "under-reconciliation",
      "limitation": "Store counts, tract counts, and the linked public package do not yet form one reproducible chain.",
      "last_reviewed": "2026-07-21"
    },
    {
      "id": "covid-food-access-gap",
      "claim": "The article reports a 49% change in its SNAP participation gap between vulnerability groups during the pandemic era.",
      "display_value": "49%",
      "population": "Santa Clara County census tracts grouped by vulnerability",
      "geography": "Santa Clara County, California",
      "period": "2019 to 2023 comparison described in the article",
      "data_sources": [
        "American Community Survey inputs described in the article"
      ],
      "method": "Article-described comparison of overlapping ACS five-year SNAP participation estimates across vulnerability groups",
      "article_url": "https://tooearlytosay.com/research/food-security/covid-differential-impact/",
      "public_surfaces": [
        "https://tooearlytosay.com/findings/",
        "https://tooearlytosay.com/research/food-security/covid-differential-impact/"
      ],
      "material_status": "article-only",
      "artifact_url": null,
      "artifact_commit": null,
      "output_url": null,
      "output_sha256": null,
      "run_record_url": null,
      "expected_output": "No public executable output currently derives the article-reported SNAP participation gap.",
      "verification_status": "article-published",
      "limitation": "No executable public analysis or saved result derives the gap. Overlapping ACS five-year vintages limit time attribution, and SNAP participation is not a direct measure of food insecurity.",
      "last_reviewed": "2026-07-21"
    },
    {
      "id": "working-poor-silicon-valley",
      "claim": "The working-poor screen identifies 57 Santa Clara County tracts.",
      "display_value": "57 tracts",
      "population": "Santa Clara County census tracts",
      "geography": "Santa Clara County, California",
      "period": "American Community Survey period described in the article",
      "data_sources": [
        "American Community Survey"
      ],
      "method": "Descriptive threshold classification",
      "article_url": "https://tooearlytosay.com/research/food-security/working-poor-silicon-valley/",
      "public_surfaces": [
        "https://tooearlytosay.com/findings/",
        "https://tooearlytosay.com/research/food-security/working-poor-silicon-valley/"
      ],
      "material_status": "supporting-code",
      "artifact_url": "https://github.com/dphdame/tooearlytosay-analysis/tree/3c338ae2e0aff91a33530109b8de8288c4870017/working-poor-silicon-valley",
      "artifact_commit": "3c338ae2e0aff91a33530109b8de8288c4870017",
      "output_url": null,
      "output_sha256": null,
      "run_record_url": null,
      "expected_output": "The public scripts generate classified tracts, but no committed result records the published count.",
      "verification_status": "not-reproduced",
      "limitation": "The package provides code and acquisition instructions without a saved output that matches the article claim.",
      "last_reviewed": "2026-07-21"
    },
    {
      "id": "leie-license-revocations",
      "claim": "The article reports that license revocations account for 40% of federal exclusion-list entries.",
      "display_value": "40%",
      "population": "Entries in the federal List of Excluded Individuals and Entities",
      "geography": "United States",
      "period": "Current exclusion file described in the article",
      "data_sources": [
        "HHS OIG List of Excluded Individuals and Entities"
      ],
      "method": "Descriptive exclusion-code audit",
      "article_url": "https://tooearlytosay.com/research/methodology/medicaid-fraud-labels/",
      "public_surfaces": [
        "https://tooearlytosay.com/findings/",
        "https://tooearlytosay.com/research/methodology/medicaid-fraud-labels/"
      ],
      "material_status": "article-only",
      "artifact_url": null,
      "artifact_commit": null,
      "output_url": null,
      "output_sha256": null,
      "run_record_url": null,
      "expected_output": "No public script or saved table currently derives the reported category share.",
      "verification_status": "article-published",
      "limitation": "The adjacent classifier package does not calculate the article's exclusion-category share.",
      "last_reviewed": "2026-07-21"
    },
    {
      "id": "school-funding-cliff",
      "claim": "The article reports an 8.7% one-year decline in California K-12 funding as temporary federal support wound down.",
      "display_value": "8.7%",
      "population": "California K-12 funding",
      "geography": "California",
      "period": "Final ARRA-funded year as temporary support wound down",
      "data_sources": [
        "California Department of Education budget summaries described in the article"
      ],
      "method": "Descriptive year-over-year budget comparison",
      "article_url": "https://tooearlytosay.com/research/education-policy/stimulus-saved-schools-then-worse/",
      "public_surfaces": [
        "https://tooearlytosay.com/findings/",
        "https://tooearlytosay.com/research/methodology/",
        "https://tooearlytosay.com/glossary/",
        "https://tooearlytosay.com/research/education-policy/stimulus-saved-schools-then-worse/"
      ],
      "material_status": "article-only",
      "artifact_url": null,
      "artifact_commit": null,
      "output_url": null,
      "output_sha256": null,
      "run_record_url": null,
      "expected_output": "No public script or saved table currently derives the published annual change.",
      "verification_status": "article-published",
      "limitation": "The public article documents an aggregate budget change, not a causal event-study estimate of the funding cliff.",
      "last_reviewed": "2026-07-21"
    }
  ]
}
