{
  "schema": "tnfr.organized-recovery-observation.method-sources.v1",
  "scope": "Primary terrestrial method review for operational admission of the frozen raw signed recovery-area candidate, including direct voltage integration, offset correction and independent calibration.",
  "owner": "theory/research/ORGANIZED_RECOVERY_OBSERVATION.md",
  "declaration_revision": "46df23f1",
  "physical_dataset_selected": false,
  "measured_arrays_downloaded": false,
  "response_fit_performed": false,
  "reserved_response_evaluated": false,
  "physical_apparatus_admitted": false,
  "physical_status": "not_admitted",
  "experimental_evaluation": "not_tested",
  "hardware_purchased": false,
  "reviewed_on_local_date": "2026-10-11",
  "review_timezone": "Europe/Madrid",
  "review_scope": "Only the identified method, specification and SI-definition sections were reviewed. No source figure, instrument response or physical dataset was selected as TNFR evidence. Earlier source receipts remain unchanged.",
  "provenance_scope": "Web text review only. No independently retrieved source bytes, archived source files or byte hashes are claimed. PDF screenshot requests for the Lake Shore manual timed out; its prose was reviewed through web text, and numerical DC specifications through the separate official HTML specification page.",
  "assessment_scope": "The reviewed methods do not supply joint coverage at the candidate's area allowance or independent complete phase preparation. Published accuracy allowances are not observed errors or universal measurement floors. This denies admission of the reviewed route from the available evidence; it does not prove impossibility of all apparatus, other protocols or the conditional mathematics.",
  "candidate_conversion": {
    "status": "repository_derivation_not_manufacturer_claim",
    "structural_pulse_horizon": "2^-10",
    "structural_recovery_duration": "2^40",
    "total_to_pulse_duration_ratio": "2^50+1",
    "structural_area_error": "2^-18",
    "supplied_reference_scale": "a0=h/(4*pi*e)",
    "gamma": "1/(1023*pi)",
    "laboratory_area_error_Vs": "(a0*gamma/4)*2^-18",
    "laboratory_area_error_approximate_Vs": "9.76585680447264e-26",
    "inference_limits": "The conversion consumes the supplied electrical dictionary and exact SI constants; it derives neither a Josephson realization nor calibration. Clock rescaling leaves voltage area unchanged and retains the fixed total-to-pulse duration ratio. No pulse generator, delivery bound or combined apparatus is admitted. Drift correction, input loading and grounding require their own observation and law models."
  },
  "sources": [
    {
      "id": "lakeshore-480-manual-r2-3",
      "title": "Lake Shore Model 480 Fluxmeter User's Manual, revision 2.3, 18 March 2026",
      "source_type": "manufacturer_measurement_method_manual",
      "canonical_url": "https://www.lakeshore.com/docs/default-source/product-downloads/manuals/480_manual.pdf?sfvrsn=d25b3964_1",
      "requested_url": "https://www.lakeshore.com/docs/default-source/product-downloads/manuals/480_manual.pdf?sfvrsn=d25b3964_1",
      "reviewed_sections": [
        "Sections 2.1.1 and 2.1.3, printed pp. 2-1 to 2-2: voltage integration and input resistance",
        "Section 4.6.1, printed p. 4-4: DC integrator measurement",
        "Sections 5.8 to 5.10.2, printed pp. 5-9 to 5-13: reset, drift correction and mode distinctions",
        "Sections 8.9.1 and 8.9.6, printed pp. 8-11 and 8-13 to 8-14: independent DC calibration"
      ],
      "factual_paraphrase": "DC non-peak mode integrates input voltage in volt seconds. Auto-adjust estimates drift before measurement; DriftTrak continuously treats sufficiently small changes as drift. DC calibration uses a burst, independently measured terminal voltage and its duration. AC mode reports RMS and excludes steady DC.",
      "inference_limits": "These methods do not establish the frozen raw-area error. Unmodeled drift tracking could remove a slow recovery contribution; resets or AC/peak processing change the observation. Calibration does not certify complete C5 preparation, exact sensor dynamics or combined loading.",
      "reviewed_on_local_date": "2026-10-11",
      "review_timezone": "Europe/Madrid",
      "review_status": "reviewed_primary_source_sections",
      "review_method": "web_source_text",
      "retrieval_status": "web_review_only",
      "pdf_visual_review_status": "screenshot_requests_timed_out",
      "direct_byte_retrieval_status": "not_attempted_for_this_receipt",
      "retrieved_at_utc": null,
      "bytes": null,
      "sha256": null,
      "optional_local_cache_path": null
    },
    {
      "id": "lakeshore-480-dc-specifications",
      "title": "Lake Shore Model 480 fluxmeter technical specifications",
      "source_type": "manufacturer_mode_specification",
      "canonical_url": "https://www.lakeshore.com/products/categories/specification/magnetic-products/fluxmeter/model-480-fluxmeter",
      "requested_url": "https://www.lakeshore.com/products/categories/specification/magnetic-products/fluxmeter/model-480-fluxmeter",
      "reviewed_sections": [
        "Measurement: ground-referenced input and selectable input resistance",
        "DC: accuracy, resolution and conditional integrator drift"
      ],
      "factual_paraphrase": "The input is ground-referenced, with 10 or 100 kilohms resistance. DC accuracy lists an offset allowance of plus/minus 10 microvolt seconds plus drift, and gain allowance of plus/minus 0.25 percent of reading below 10 volt seconds per second. Drift is plus/minus 1 microvolt second per minute on the 300 millivolt-second range, 100 kilohms, at constant temperature.",
      "reviewed_specification_values": {
        "dc_offset_area_magnitude_Vs": "0.00001",
        "dc_gain_relative_magnitude": "0.0025",
        "dc_gain_rate_condition_Vs_per_s": "strictly less than 10",
        "dc_drift_area_magnitude_Vs_per_minute": "0.000001",
        "dc_drift_conditions": "300 mVs range; 100 kilohms input resistance; constant temperature"
      },
      "inference_limits": "These are specification allowances, not empirical lower bounds or a calibrated joint uncertainty. They cannot certify the much smaller frozen area allowance. The drift specification cannot be transferred to other ranges or extrapolated into an unreviewed long-term guarantee. Input loading and grounding are additional physical premises.",
      "reviewed_on_local_date": "2026-10-11",
      "review_timezone": "Europe/Madrid",
      "review_status": "reviewed_primary_source_sections",
      "review_method": "web_source_text",
      "retrieval_status": "web_review_only",
      "direct_byte_retrieval_status": "not_attempted_for_this_receipt",
      "retrieved_at_utc": null,
      "bytes": null,
      "sha256": null,
      "optional_local_cache_path": null
    },
    {
      "id": "keithley-low-level-handbook-7",
      "title": "Keithley Low Level Measurements Handbook, 7th Edition",
      "source_type": "manufacturer_measurement_method_handbook",
      "canonical_url": "https://download.tek.com/document/LowLevelHandbook_7Ed.pdf",
      "requested_url": "https://download.tek.com/document/LowLevelHandbook_7Ed.pdf",
      "reviewed_sections": [
        "Sections 3.2.3 to 3.2.4, printed pp. 3-7 to 3-9: internal offsets and zero drift",
        "Section 3.2.8, printed pp. 3-12 to 3-13: line-cycle integration",
        "Section 3.3.2, printed pp. 3-22 to 3-25: reversal, delta and offset-compensated methods"
      ],
      "factual_paraphrase": "Shorted-input zero checks do not by themselves establish application zero. Offset varies with time and temperature. Line-cycle integration rejects periodic pickup under its timing premise. Reversal, delta and source-off compensation use distinct measurement sequences and offset assumptions.",
      "inference_limits": "These methods neither supply uninterrupted raw-area coverage nor allow the model's unforced recovery voltage to be relabeled as instrumental offset. New subtraction, reversal or adaptation needs a separately declared observation and error proof.",
      "reviewed_on_local_date": "2026-10-11",
      "review_timezone": "Europe/Madrid",
      "review_status": "reviewed_primary_source_sections",
      "review_method": "web_source_text",
      "retrieval_status": "web_review_only",
      "direct_byte_retrieval_status": "not_attempted_for_this_receipt",
      "retrieved_at_utc": null,
      "bytes": null,
      "sha256": null,
      "optional_local_cache_path": null
    },
    {
      "id": "nist-si-section-2",
      "title": "NIST Special Publication 330, Section 2: The International System of Units",
      "source_type": "authoritative_SI_definition",
      "canonical_url": "https://www.nist.gov/pml/special-publication-330/sp-330-section-2",
      "requested_url": "https://www.nist.gov/pml/special-publication-330/sp-330-section-2",
      "reviewed_sections": [
        "Section 2.2 and Table 1: exact defining constants",
        "Section 2.2.1: definition versus realization"
      ],
      "factual_paraphrase": "The SI fixes h=6.62607015e-34 joule seconds and e=1.602176634e-19 coulombs exactly. Unit definition is distinct from practical realization.",
      "inference_limits": "These constants support the supplied a0 conversion; they do not certify Josephson hardware, independent phase preparation, the laboratory clock or an instrument's calibration and joint error.",
      "reviewed_on_local_date": "2026-10-11",
      "review_timezone": "Europe/Madrid",
      "review_status": "reviewed_primary_source_sections",
      "review_method": "web_source_text",
      "retrieval_status": "web_review_only",
      "direct_byte_retrieval_status": "not_attempted_for_this_receipt",
      "retrieved_at_utc": null,
      "bytes": null,
      "sha256": null,
      "optional_local_cache_path": null
    }
  ]
}