{
  "_meta": {
    "last_audit_date": "2026-06-19",
    "note": "Sourced historical + present-day facts for the first-principles deep dives. Computed math (issuance, S2F, purchasing power, denarius decay) lives in first-principles-math.json. Source tiers follow the deep-dive framework: T1 primary/official, T2 reputable secondary/academic, T3 journalism, T4 community-tracked/estimate.",
    "live_data_note": "Present-day figures (BTC supply, node count, price) are bound via data-btc-live where possible; hardcoded fallbacks below are dated and labelled."
  },

  "present_day_anchors": {
    "as_of": "2026-06",
    "btc_circulating_supply_btc": 20043000,
    "btc_pct_of_cap_mined": 95.4,
    "btc_block_subsidy_btc": 3.125,
    "btc_next_halving_approx_year": 2028,
    "reachable_nodes_estimate": 21000,
    "reachable_nodes_caveat": "Bitnodes counts LISTENING/reachable nodes only (~21k-24k through 2026); total validating nodes including non-listening are materially higher but not directly countable. Crawler methodology shifted mid-2026.",
    "network_hashrate_estimate_eh_s": 900,
    "network_hashrate_as_of": "2026-06",
    "network_hashrate_caveat": "Bitcoin network hashrate fluctuated ~888-937 EH/s across June 2026 (it is inferred from block times + difficulty, not measured directly, so trackers differ). Used as the default + slider midpoint for the miner-economics and 51%-attack calculators in original-question-everything.html. Illustrative, not a quote; update on re-audit.",
    "sources": [
      {"label": "Blockchain.com, Total Circulating Bitcoin", "url": "https://www.blockchain.com/explorer/charts/total-bitcoins", "tier": "T4"},
      {"label": "Bitnodes, Reachable Bitcoin Nodes", "url": "https://bitnodes.io/", "tier": "T4"},
      {"label": "Bitcoin Core, controlled supply / subsidy schedule", "url": "https://en.bitcoin.it/wiki/Controlled_supply", "tier": "T2"},
      {"label": "CoinWarz Bitcoin Hashrate Chart (~934 EH/s, Jun 2026)", "url": "https://www.coinwarz.com/mining/bitcoin/hashrate-chart", "tier": "T4"}
    ]
  },

  "debasement_rome": {
    "claim": "The Roman silver denarius fell from ~95% silver under Augustus to ~2-5% by the late 3rd century (Aurelian).",
    "status": "verified",
    "figures": {"augustus_silver_pct": 95, "aurelian_silver_pct": 2, "span_years": 301, "compound_annual_decline_pct": -1.27},
    "sources": [
      {"label": "Kenneth W. Harl, Coinage in the Roman Economy, 300 B.C. to A.D. 700 (Johns Hopkins UP, 1996)", "url": "https://www.google.com/books/edition/Coinage_in_the_Roman_Economy_300_B_C_to/dXmoAAAAIAAJ", "tier": "T2"}
    ],
    "caveat": "Per-emperor fineness figures are numismatic estimates with a few-percent error band; the trend (steep multi-century decline) is not in dispute, the exact per-year values are approximate."
  },

  "hyperinflations": {
    "_source_primary": {"label": "Hanke & Krus, 'World Hyperinflations' (Cato Working Paper / Routledge Handbook of Major Events in Economic History, 2013), the canonical academic table", "url": "https://www.cato.org/research/world-hyperinflations", "tier": "T2"},
    "episodes": [
      {
        "key": "hungary",
        "country": "Hungary",
        "period": "Aug 1945 – Jul 1946",
        "peak_monthly_inflation": "4.19 × 10¹⁶ %",
        "daily_inflation_pct": 207,
        "prices_double_every": "~15.0 hours",
        "highest_denomination": "100 quintillion (10²⁰) pengő",
        "note": "The highest monthly inflation rate ever recorded. Currency replaced by the forint, Aug 1946.",
        "status": "verified"
      },
      {
        "key": "zimbabwe",
        "country": "Zimbabwe",
        "period": "Mar 2007 – Nov 2008",
        "peak_monthly_inflation": "7.96 × 10¹⁰ % (79.6 billion %)",
        "daily_inflation_pct": 98,
        "prices_double_every": "~24.7 hours",
        "highest_denomination": "100 trillion Zimbabwe dollars",
        "note": "Currency abandoned in 2009 in favour of foreign currencies.",
        "status": "verified"
      },
      {
        "key": "weimar",
        "country": "Germany (Weimar)",
        "period": "Aug 1922 – Dec 1923",
        "peak_monthly_inflation": "29,500 %",
        "daily_inflation_pct": 20.9,
        "prices_double_every": "~3.7 days",
        "highest_denomination": "100 trillion mark",
        "note": "Driven by money-financing of deficits and reparations. Ended with the Rentenmark, Nov 1923.",
        "status": "verified"
      },
      {
        "key": "venezuela",
        "country": "Venezuela",
        "period": "2016 – 2019 (peak)",
        "peak_monthly_inflation": "peak ~hundreds of % / month (2018)",
        "annual_inflation_note": "IMF projected ~1,000,000% for 2018; cumulative collapse of the bolívar's value.",
        "migration": "~7.7 million Venezuelans had left the country by the mid-2020s (R4V/UNHCR).",
        "status": "verified",
        "sources": [
          {"label": "IMF, Outlook for the Americas (2018 1,000,000% projection)", "url": "https://www.imf.org/en/Blogs/Articles/2018/07/23/blog-outlook-for-the-americas", "tier": "T1"},
          {"label": "R4V (Inter-Agency Coordination Platform for Refugees and Migrants from Venezuela)", "url": "https://www.r4v.info/", "tier": "T1"}
        ]
      }
    ]
  },

  "confiscation_and_censorship": [
    {
      "key": "gold1933",
      "title": "US gold confiscation (1933–34)",
      "claim": "Executive Order 6102 (Apr 5, 1933) required citizens to deliver most gold to the Federal Reserve at $20.67/oz; the Gold Reserve Act (Jan 1934) then revalued gold to $35/oz.",
      "status": "verified",
      "implication": "Citizens who complied were paid $20.67/oz; the dollar was then devalued ~41% against gold ($20.67→$35).",
      "sources": [
        {"label": "Executive Order 6102, U.S. National Archives", "url": "https://www.archives.gov/milestone-documents", "tier": "T1"},
        {"label": "Gold Reserve Act of 1934, Federal Reserve History", "url": "https://www.federalreservehistory.org/essays/gold-reserve-act", "tier": "T1"}
      ]
    },
    {
      "key": "cyprus2013",
      "title": "Cyprus deposit bail-in (2013)",
      "claim": "In the 2013 rescue, uninsured deposits (over €100,000) at Bank of Cyprus were converted to equity; the haircut on uninsured deposits reached roughly 47.5%.",
      "status": "verified",
      "caveat": "Insured deposits (≤€100,000) were protected. The ~47.5% figure applies to uninsured deposits at Bank of Cyprus specifically.",
      "sources": [
        {"label": "Reuters, Cyprus bank depositors to lose up to 47.5% (2013)", "url": "https://www.reuters.com/article/us-cyprus-bank-idUSBRE96Q0LL20130727", "tier": "T3"}
      ]
    },
    {
      "key": "india2016",
      "title": "India demonetisation (2016)",
      "claim": "On Nov 8, 2016, India withdrew ₹500 and ₹1000 notes, about 86% of the value of currency in circulation, as legal tender.",
      "status": "verified",
      "caveat": "86% refers to value of notes in circulation, not 86% of cash transactions or money supply. The RBI later reported ~99% of demonetised notes were returned.",
      "sources": [
        {"label": "Reserve Bank of India, Annual Report 2016–17 (demonetisation)", "url": "https://www.rbi.org.in/Scripts/AnnualReportPublications.aspx", "tier": "T1"}
      ]
    },
    {
      "key": "canada2022",
      "title": "Canada Emergencies Act account freezes (2022)",
      "claim": "In Feb 2022 the federal government invoked the Emergencies Act; under the Emergency Economic Measures Order, banks froze accounts tied to the protests, the Public Order Emergency Commission documented roughly 280 accounts (~CA$8M) frozen.",
      "status": "needs-revision",
      "caveat": "The earlier page claim that '$50 donors had accounts frozen' is anecdotal/contested. Use the documented POEC figures. A Federal Court later ruled (2024) the invocation was unreasonable and unconstitutional, under appeal.",
      "sources": [
        {"label": "Public Order Emergency Commission (Rouleau Commission) Final Report", "url": "https://publicorderemergencycommission.ca/", "tier": "T1"},
        {"label": "Federal Court of Canada 2024 ruling (Canadian Frontline Nurses v. Canada)", "url": "https://www.fct-cf.gc.ca/", "tier": "T1"}
      ]
    }
  ],

  "bitcoin_resilience": {
    "uptime_claim": "Bitcoin's base network has had two notable consensus incidents, the Aug 2010 value-overflow bug (block 74638) and the Mar 2013 v0.7/v0.8 chain split, both resolved within hours, both in the first four years. None since 2013.",
    "uptime_pct_estimate": "~99.98% (estimate; framed as 'two brief early incidents, none since 2013')",
    "status": "verified",
    "sources": [
      {"label": "Bitcoin Wiki, Value overflow incident (2010)", "url": "https://en.bitcoin.it/wiki/Value_overflow_incident", "tier": "T2"},
      {"label": "BIP 50, March 2013 chain fork post-mortem", "url": "https://github.com/bitcoin/bips/blob/master/bip-0050.mediawiki", "tier": "T1"}
    ]
  },

  "stock_to_flow_model_critique": {
    "claim": "The PlanB Stock-to-Flow PRICE model is excluded from these pages as a predictor because it has been falsified out-of-sample.",
    "status": "verified",
    "evidence": "BTC price diverged from the S2F model by well over 500% across 2024; PlanB's $100k–$1M 'by end of 2021' and ~$500k 'by 2025' bands did not materialise. The model conflates a scarcity ratio (a real, computable property) with a price forecast (which it is not).",
    "framing_rule": "On-page: present S2F ONLY as a scarcity descriptor (stock ÷ annual flow). Never imply 'high S2F → price must rise'. Always pair with the divergence-from-price evidence.",
    "sources": [
      {"label": "Investopedia / multiple analyses documenting S2F price-model divergence post-2021", "url": "https://www.investopedia.com/bitcoin-stock-to-flow-model-5217015", "tier": "T3"}
    ]
  }
}