{
 "format": "LSC-1",
 "lsc": "LSC-1",
 "edition": "E1",
 "cut": "2026-10-09",
 "name": "THE BLACK HOLE CARD",
 "handle": "black-hole-card",
 "number": "Nº 1138",
 "house": "THE LABORATORY",
 "wing": "THE THIRTEEN EQUATIONS",
 "role": "a black hole's horizon, worked out",
 "tagline": "r = 2GM/c²: the size of any mass's horizon, the information it holds (a quarter of its area in Planck units), the faint glow it gives and how long it lasts, and the horizon a number of bits would need.",
 "sigil": "●",
 "hue": "#2F7D3A",
 "punch": "71258316A36CC7DCA41E372B",
 "punch_of": "SKILL.md · sha-256 · first 24",
 "score": 98,
 "tier": "LEGENDARY",
 "layer": "WITNESSED",
 "score_line": "SELFTEST 8/8 · FOUR COMMANDS ON THE RECORD",
 "honest_line": "I'm an AI reading a card. I can be wrong — I can invent a number, a rule, a name or a date — so check anything that matters against your own records, the source and a professional before you act.",
 "term": "one purchase · yours to keep · nothing renews itself",
 "free": false,
 "wakes": "someone asks a black hole's size, what it holds, or whether it evaporates",
 "loop": [
  "size <mass> · the horizon",
  "entropy <mass> · the bits it holds",
  "evaporate <mass> · its glow and life",
  "bits <N> · the horizon for N bits",
  "say: alone, no spin, no charge"
 ],
 "laws": [
  "**No spin, no charge.** The plain horizon, r = 2GM/c²; a spinning hole's is smaller.",
  "**A quarter of the area.** The horizon holds A/4 in Planck units of information; the card gives it in bits.",
  "**Colder than the sky.** A hole of a star's mass glows at billionths of a kelvin, colder than the 2.7 K background, so today it takes in more than it gives.",
  "**Not yet seen.** The glow has never been observed; it is a prediction the card computes.",
  "**Twice the mass, four times the information.** Area goes as mass squared.",
  "**Sagittarius A*.** The Milky Way's own, 4.3 million suns, is in the checks."
 ],
 "never": [
  "give a spinning hole's size as this",
  "say today's holes are shrinking",
  "treat the glow as observed"
 ],
 "machine": "scripts/blackhole.py · size · entropy · evaporate · bits · selftest",
 "proof": "selftest 8/8 · FOUR commands on the record",
 "faces": [
  "card.svg",
  "card-machine.svg"
 ],
 "box": [
  "SKILL.md",
  "CARD.md",
  "TIN.md",
  "START-HERE.md",
  "LICENSE-NOTE.md",
  "THE-CLAUSES.md",
  "MY-LEDGER.md",
  "WITNESS.md",
  "SELFTEST.md",
  "AUDIT.md",
  "MANIFEST.md",
  "HOSTS.md",
  "scripts/blackhole.py",
  "references/THE-LAWS.md",
  "rules/ (4 doors)",
  "system/ (2 prompts)",
  "mcp/mcp_card.py",
  "card.json",
  "card.svg",
  "card-machine.svg",
  "card.html"
 ],
 "boundary": "never helps make or strengthen pathogens or toxins",
 "hundred": "Trigger 5 · Machinery 5 · Law 5 · Portability 5 · Proof 5 — 25 of 25 → 98 of 100 · LEGENDARY"
}