{
  "$note": "Independent re-execution record. Written by scripts/reexecute.py; read by scripts/render_papers.mjs to render the verification badge. A match here means the analysis code, re-run from its pinned inputs, reproduced the published numbers \u2014 a computational reproduction, not peer review.",
  "object": "examples/american-rivers-dam-removal-database",
  "slug": "dam-size-vs-upstream-miles-reconnected",
  "method": "re_execution",
  "runner": {
    "kind": "self-hosted-deterministic",
    "note": "the object's analysis code, re-run in an isolated work dir from its pinned inputs (fetched by id + md5), on a library stack independent of the authoring environment"
  },
  "authoring_environment": "claude-science / # Python 3.11.15",
  "ran_at": "2026-07-13T14:07:37Z",
  "environment": {
    "python": "3.13.12",
    "packages": {
      "numpy": "2.4.4",
      "pandas": "2.3.3",
      "scipy": "1.17.1",
      "statsmodels": "0.14.6",
      "matplotlib": "3.10.9"
    }
  },
  "inputs_pinned": [
    {
      "source": "figshare",
      "source_id": "5234068",
      "source_doi": "10.6084/m9.figshare.5234068.v13",
      "license": "CC BY 4.0",
      "files_used": [
        "ARDamRemovalList_Figshare_Mar2026.csv"
      ]
    }
  ],
  "tolerance": {
    "rel": 1e-06,
    "abs": 1e-09
  },
  "results_file": "results.json",
  "code": {
    "component": "analysis",
    "path": "analysis.py",
    "sha256": "58049226665d2f438f500578b7ed302f8a7464d38d7235a9e8b2f719f3f8c607"
  },
  "results_sha256": {
    "committed": "27987fff82e789601dfdb16c135f4c982cf5358653f608d38d12a836ddf15210",
    "reexecuted": "5752dc79d60d40a1f930c1e6b72b300c3f7125651d7ae4a8f4401d2dc3c93ccf"
  },
  "wall_seconds": 7.0,
  "results_compared": {
    "committed": "results.json",
    "values_compared": 57,
    "numeric_mismatches": 0,
    "max_abs_diff": 0.0
  },
  "mismatches": [],
  "claims_covered": [
    "claim-1",
    "claim-2",
    "claim-3",
    "claim-4",
    "claim-5"
  ],
  "status": "matched"
}