{
  "contract_id": "QT-211-Q4-BC-1.0",
  "title": "211 mV Four-Quadrant Tunnel Modulator Deterministic Benchmark Contract",
  "status": "FROZEN",
  "frozen_utc": "2026-08-23T23:48:44Z",
  "owner": "David Lee Wise / ROOT0 / TriPod LLC",
  "license": "CC-BY-ND-4.0 / TRIPOD-IP-v1.1",
  "normative": {
    "model_version": "QT-211-Q4-1.0.0",
    "bias_volts": 0.211,
    "bias_classification": "candidate operating bias; not a universal tunnelling threshold",
    "energy_per_electron_ev": 0.211,
    "elementary_charge_c": 1.602176634e-19,
    "silicon_indirect_bandgap_ev": 1.12,
    "alphabet": {
      "..": { "i": 1, "q": 1, "phase_deg": 45, "bits": "00" },
      "-.": { "i": -1, "q": 1, "phase_deg": 135, "bits": "10" },
      "--": { "i": -1, "q": -1, "phase_deg": 225, "bits": "11" },
      ".-": { "i": 1, "q": -1, "phase_deg": 315, "bits": "01" }
    },
    "gray_cycle": ["..", "-.", "--", ".-"],
    "inverse_rule": "(I,Q) -> (-I,-Q); phase += 180 degrees",
    "mirror_inverse_rule": "reverse the left symbol order, then invert every symbol",
    "left_word": ["..", "-.", "--", ".-"],
    "right_word": ["-.", "..", ".-", "--"],
    "locked_word": "[..,-.,--,.-]|[-.,..,.-,--].",
    "remembered_word": "..--|..--.",
    "remembered_word_classification": "two opposing quadrants plus terminal pilot; not a four-quadrant cycle",
    "transport_protocol": [
      { "trip": 1, "phase": "LOCATE", "operation": "resolve the destination address" },
      { "trip": 2, "phase": "CAPTURE", "operation": "establish the trap or receiving boundary" },
      { "trip": 3, "phase": "TRANSFER", "operation": "deposit the encapsulated payload and return" },
      { "trip": 4, "phase": "CHOOSE", "operation": "branch, repeat, invert, or halt" }
    ],
    "spinor_classification": "conditional payload type only; the four-trip protocol is not itself a spinor",
    "spinor_requirements": [
      "payload is a normalized two-component complex vector",
      "transport operations are SU(2) transformations",
      "a 2*pi rotation maps psi to -psi",
      "a 4*pi rotation returns psi"
    ],
    "low_bias_transfer": "I(V) = G1*V + G3*V^3",
    "barrier_transfer": "T = exp(-2*kappa*d)",
    "kappa": "sqrt(2*m_eff*(Phi-E))/hbar",
    "acceptance": [
      "the four alphabet states are unique and encode every sign pair of I and Q",
      "each adjacent Gray-cycle state, including closure, changes exactly one bit",
      "inversion is involutive and produces exactly 180 degrees of phase separation",
      "mirror-inversion yields the frozen right word",
      "quadrature magnitude equals requested amplitude and bias magnitude",
      "one electron crossing 211 mV changes energy by exactly 0.211 eV",
      "211 mV is below the 1.12 eV silicon indirect bandgap reference",
      "the low-bias cubic transfer is odd under voltage inversion",
      "WKB transmission decreases monotonically with barrier width and barrier height",
      "the remembered word is reported as two quadrants, not silently promoted to four",
      "invalid states and invalid WKB domains fail closed",
      "the four transport phases advance in the frozen order and close to LOCATE",
      "the reference spinor is normalized, flips sign at 2*pi, and returns at 4*pi",
      "one million deterministic evaluations remain finite and complete"
    ]
  },
  "evidence_boundaries": {
    "established": [
      "electron energy change qV",
      "four-state I/Q phase alphabet",
      "low-bias odd-power current expansion",
      "WKB rectangular-barrier transmission approximation",
      "silicon indirect bandgap reference near 1.12 eV"
    ],
    "proposed": [
      "211 mV as this design's frozen operating bias",
      "dot-dash glyph assignment",
      "clamped mirror-inverse word"
    ],
    "not_claimed": [
      "211 mV as a universal tunnelling voltage",
      "a fabricated silicon device",
      "measured tunnel current",
      "quantum advantage"
    ]
  },
  "sources": [
    {
      "title": "Room Temperature Gold-Vacuum-Gold Tunneling Experiments",
      "publisher": "NIST",
      "url": "https://nvlpubs.nist.gov/nistpubs/jres/091/jresv91n4p171_A1b.pdf"
    },
    {
      "title": "A Metrological Near-Room-Temperature Photon-Number-Resolving Detector",
      "publisher": "NIST",
      "url": "https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=960308"
    }
  ],
  "freeze_seal": {
    "algorithm": "SHA-256",
    "scope": "canonical JSON serialization of the normative object",
    "digest": "f882dbd1b80cbe8efcf5c9d49a977276529f11b7953d0276a80ab168485348fb"
  },
  "change_rule": "Any change to normative semantics, constants, alphabet, equations, word, acceptance gates, or seal requires a new contract version."
}