{
  "slug": "bitcoin",
  "category": "cryptocurrencies",
  "name": "Bitcoin",
  "description": "Decentralized cryptocurrency and payment network. Every transaction, address and amount is recorded on a public blockchain, so payments are pseudonymous rather than private.",
  "website": "https://bitcoin.org",
  "source": "https://github.com/bitcoin/bitcoin",
  "license": "MIT",
  "platforms": [
    "windows",
    "macos",
    "linux"
  ],
  "jurisdiction": null,
  "pick": false,
  "pick_reason": null,
  "disclosure": null,
  "grade": "A",
  "score": 100,
  "coverage": 100,
  "summary": "Bitcoin scores 100 out of 100 (grade A) on the private cryptocurrencies criteria. It meets 4 of 4 criteria: open source, no trackers or telemetry, no ads or data sales and independent audit.",
  "url": "https://privacyratings.com/cryptocurrencies/bitcoin/",
  "markdown": "https://privacyratings.com/cryptocurrencies/bitcoin/index.md",
  "answers": {
    "open_source": {
      "title": "Open source",
      "weight": 3,
      "answer": "yes",
      "evidence": "https://github.com/bitcoin/bitcoin/blob/master/COPYING",
      "note": "The reference implementation, Bitcoin Core, is MIT licensed."
    },
    "no_trackers": {
      "title": "No trackers or telemetry",
      "weight": 3,
      "answer": "yes",
      "evidence": "https://bitcoin.org/en/privacy",
      "note": "The bitcoin.org privacy policy describes only server logs with shortened IP addresses and a consent cookie, and Bitcoin Core contains no telemetry."
    },
    "no_ads": {
      "title": "No ads or data sales",
      "weight": 2,
      "answer": "yes",
      "evidence": "https://bitcoincore.org/en/about/",
      "note": "Open protocol and software maintained by an open source developer community, with no ads."
    },
    "independent_audit": {
      "title": "Independent audit",
      "weight": 2,
      "answer": "yes",
      "evidence": "https://ostif.org/wp-content/uploads/2025/11/25-05-2133-REP-bitcoincore-security-assessment-V1.3.pdf",
      "note": "Quarkslab published a full security audit of Bitcoin Core, arranged by OSTIF."
    },
    "transparency_report": {
      "title": "Transparency report",
      "weight": 2,
      "answer": "n/a",
      "evidence": null,
      "note": "Only applies to hosted services with a website to test."
    },
    "user_notice": {
      "title": "Tells users about requests",
      "weight": 1,
      "answer": "n/a",
      "evidence": null,
      "note": "Only applies to hosted services with a website to test."
    },
    "tls": {
      "title": "TLS configuration",
      "weight": 2,
      "answer": "n/a",
      "evidence": null,
      "note": "Only applies to hosted services with a website to test."
    },
    "security_headers": {
      "title": "Security headers",
      "weight": 1,
      "answer": "n/a",
      "evidence": null,
      "note": "Only applies to hosted services with a website to test."
    },
    "web_standards": {
      "title": "Modern web standards",
      "weight": 1,
      "answer": "n/a",
      "evidence": null,
      "note": "Only applies to hosted services with a website to test."
    }
  },
  "tests": {
    "ssllabs": null,
    "observatory": null,
    "internetnl_web": null,
    "internetnl_mail": null,
    "trackers": [
      {
        "name": "Cloudflare Web Analytics",
        "host": "static.cloudflareinsights.com",
        "effect": "partial"
      }
    ],
    "tested_at": "2026-10-01T07:02:01.749Z"
  },
  "last_modified": "2026-10-01T07:44:20Z"
}