{
  "format_version": 3,
  "claim_formal": {
    "subject": "Earth's gravitational field on 2026-08-12",
    "property": "count of authoritative sources confirming this event is physically impossible",
    "operator": ">=",
    "operator_note": "The claim is a compound assertion: SC1 (Earth undergoes a 7-second zero-gravity event on 2026-08-12) AND SC2 (this causes 40 million deaths). SC1 is disproved if 3 or more authoritative sources independently confirm it is physically impossible. SC2 is contingent on SC1 \u2014 if SC1 is impossible, SC2 cannot occur. Gravity is produced by mass via Newton's law F = Gm1*m2/r^2; it cannot 'switch off' while Earth's mass exists. NASA \u2014 the institution the hoax falsely invokes \u2014 has explicitly denied this claim.",
    "threshold": 3,
    "proof_direction": "disprove",
    "sub_claims": [
      {
        "id": "SC1",
        "description": "Earth will experience a zero-gravity event on 2026-08-12",
        "disproof_method": "3 authoritative sources confirm physical impossibility"
      },
      {
        "id": "SC2",
        "description": "The alleged event causes 40 million deaths",
        "disproof_method": "Contingent on SC1; falls with SC1 disproof"
      }
    ]
  },
  "claim_natural": "Earth will lose gravity for exactly 7 seconds on August 12, 2026, causing 40 million deaths.",
  "evidence": {
    "B1": {
      "type": "empirical",
      "label": "BGR: NASA spokesperson explicitly denies Earth will lose gravity on 2026-08-12",
      "sub_claim": null,
      "source": {
        "name": "BGR (citing NASA spokesperson confirmation)",
        "url": "https://www.bgr.com/2081398/nasa-conspiracy-theory-earth-lose-gravity-august-2026-explained/",
        "quote": "The Earth will not lose gravity on Aug. 12, 2026. Earth's gravity, or total gravitational force, is determined by its mass."
      },
      "verification": {
        "status": "verified",
        "method": "full_quote",
        "coverage_pct": null,
        "fetch_mode": "live",
        "credibility": {
          "domain": "bgr.com",
          "source_type": "unknown",
          "tier": 2,
          "flags": [],
          "note": "Unclassified domain \u2014 verify source authority manually"
        }
      },
      "extraction": {
        "value": "verified",
        "value_in_quote": true,
        "quote_snippet": "The Earth will not lose gravity on Aug. 12, 2026. Earth's gravity, or total grav"
      }
    },
    "B2": {
      "type": "empirical",
      "label": "Daily Galaxy: Full NASA statement \u2014 only way to lose gravity is to lose mass",
      "sub_claim": null,
      "source": {
        "name": "Daily Galaxy (citing NASA statement on the hoax)",
        "url": "https://dailygalaxy.com/2026/01/earth-lose-gravity-for-7-seconds-2026-nasa/",
        "quote": "The Earth will not lose gravity on Aug. 12, 2026. Earth's gravity, or total gravitational force, is determined by its mass. The only way for the Earth to lose gravity would be for the Earth system, the combined mass of its core, mantle, crust, ocean, terrestrial water, and atmosphere, to lose mass."
      },
      "verification": {
        "status": "verified",
        "method": "full_quote",
        "coverage_pct": null,
        "fetch_mode": "live",
        "credibility": {
          "domain": "dailygalaxy.com",
          "source_type": "unknown",
          "tier": 2,
          "flags": [],
          "note": "Unclassified domain \u2014 verify source authority manually"
        }
      },
      "extraction": {
        "value": "partial",
        "value_in_quote": true,
        "quote_snippet": "The Earth will not lose gravity on Aug. 12, 2026. Earth's gravity, or total grav"
      }
    },
    "B3": {
      "type": "empirical",
      "label": "NASA Space Place: Authoritative physics \u2014 gravity comes from mass",
      "sub_claim": null,
      "source": {
        "name": "NASA Space Place (NASA official educational resource on gravity)",
        "url": "https://spaceplace.nasa.gov/what-is-gravity/en/",
        "quote": "Earth's gravity comes from all its mass. All its mass makes a combined gravitational pull on all the mass in your body."
      },
      "verification": {
        "status": "verified",
        "method": "full_quote",
        "coverage_pct": null,
        "fetch_mode": "live",
        "credibility": {
          "domain": "nasa.gov",
          "source_type": "government",
          "tier": 5,
          "flags": [],
          "note": "Government domain (.gov)"
        }
      },
      "extraction": {
        "value": "verified",
        "value_in_quote": true,
        "quote_snippet": "Earth's gravity comes from all its mass. All its mass makes a combined gravitati"
      }
    },
    "A1": {
      "type": "computed",
      "label": "Verified source count for SC1 disproof",
      "sub_claim": null,
      "method": "count(verified citations) = 3",
      "result": "3",
      "depends_on": []
    }
  },
  "cross_checks": [
    {
      "description": "Three independent publications all reject the gravity-loss claim. B1 and B2 both cite the same NASA spokesperson statement (same upstream authority, independently published). B3 (NASA Space Place) is an independent NASA educational resource establishing the underlying physics: gravity is produced by mass and cannot 'switch off.'",
      "n_sources_consulted": 3,
      "n_sources_verified": 3,
      "sources": {
        "source_bgr": "verified",
        "source_dailygalaxy": "partial",
        "source_nasa_spaceplace": "verified"
      },
      "independence_note": "B1 and B2 independently published the same NASA statement (same upstream authority). B3 is an independent NASA educational resource. This is 'independently published (same upstream authority)' \u2014 weaker than independent measurements, but sufficient for disproving a hoax claim given the underlying physics is unambiguous.",
      "fact_ids": []
    }
  ],
  "adversarial_checks": [
    {
      "question": "Is there a real NASA document called 'Project Anchor' predicting a 7-second gravitational anomaly on 2026-08-12?",
      "verification_performed": "Searched 'NASA Project Anchor gravity 2026' across Google, Bing, DuckDuckGo, and Yahoo. Reviewed Snopes investigation (which conducted the same multi-engine search). Also searched NASA.gov directly.",
      "finding": "No credible evidence for 'Project Anchor' exists. The claim originated as an anonymous social media post circulated in November 2024. NASA's spokesperson confirmed no such document or project exists. Snopes rated the claim False.",
      "breaks_proof": false
    },
    {
      "question": "Could any known astronomical event on August 12, 2026 affect Earth's gravity?",
      "verification_performed": "Searched astronomical calendars for events on 2026-08-12. NASA confirms a total solar eclipse is visible from parts of Europe and the Arctic on that date.",
      "finding": "A total solar eclipse does occur on 2026-08-12. However, NASA states 'A total solar eclipse has no unusual impact on Earth's gravity.' Solar and lunar tidal forces are well-studied and cause < 0.01% variation in local gravity \u2014 not a total loss. This known event may be the seed of the hoax but does not support the claim.",
      "breaks_proof": false
    },
    {
      "question": "Could gravitational waves cause Earth to temporarily 'lose gravity'?",
      "verification_performed": "Searched LIGO/Virgo documentation on gravitational wave effects at Earth's surface. Reviewed physics literature on gravitational wave strain magnitude.",
      "finding": "Gravitational waves (ripples in spacetime from, e.g., black hole mergers) produce strain of order 10^-21 \u2014 one part per sextillion \u2014 utterly imperceptible. They do not modify Earth's surface gravitational acceleration; they cannot cause a 'loss' of gravity. No credible source supports this mechanism for the alleged event.",
      "breaks_proof": false
    },
    {
      "question": "Is there any peer-reviewed scientific paper or credible forecast of a temporary gravity-cessation event on Earth in 2026?",
      "verification_performed": "Searched NASA ADS, arXiv, Google Scholar, and general web search for 'Earth gravity cessation 2026', 'temporary gravity loss Earth mechanism', 'zero gravity Earth event 2026'. Searched for any credible scientific claim supporting the 40 million death figure.",
      "finding": "Zero peer-reviewed papers or credible forecasts found. All results are news articles and fact-checks debunking the hoax. No scientific institution has predicted, modeled, or warned of such an event. The 40 million death figure appears in no scientific literature.",
      "breaks_proof": false
    }
  ],
  "verdict": {
    "value": "DISPROVED",
    "qualified": false,
    "qualifier": null,
    "reason": null
  },
  "key_results": {
    "n_confirmed": 3,
    "threshold": 3,
    "operator": ">=",
    "claim_holds": true,
    "sc1_disproved": true,
    "sc2_disproved": true,
    "proof_direction": "disprove"
  },
  "generator": {
    "name": "proof-engine",
    "version": "0.10.0",
    "repo": "https://github.com/yaniv-golan/proof-engine",
    "generated_at": "2026-03-28"
  },
  "proof_py_url": "/proofs/earth-will-lose-gravity-for-exactly-7-seconds-on-a/proof.py",
  "citation": {
    "doi": null,
    "concept_doi": null,
    "url": "https://proofengine.info/proofs/earth-will-lose-gravity-for-exactly-7-seconds-on-a/",
    "author": "Proof Engine",
    "cite_bib_url": "/proofs/earth-will-lose-gravity-for-exactly-7-seconds-on-a/cite.bib",
    "cite_ris_url": "/proofs/earth-will-lose-gravity-for-exactly-7-seconds-on-a/cite.ris"
  },
  "depends_on": []
}