{
  "uri": "alkn://truthloops/np1/disambiguation-grade-name-not-lot-proof",
  "contents": [
    {
      "uri": "alkn://truthloops/np1/disambiguation-grade-name-not-lot-proof",
      "mimeType": "application/json",
      "text": "{\n  \"source_role\": \"doctrine\",\n  \"observation_type\": \"doctrine\",\n  \"evidence_payload_retrievable\": false,\n  \"scope_temporal\": \"permanent_doctrine\",\n  \"loop_id\": \"disambiguation-grade-name-not-lot-proof\",\n  \"polarity\": \"negative_disambiguation\",\n  \"proposition\": \"DISAMBIGUATION: The NP1 grade name alone does NOT establish lot chemistry, exact purity, diameter distribution, tolerance, temper, surface condition, mechanical properties, continuity, laboratory verification or chain of custody.\",\n  \"bounded_meaning\": \"Compare exact certificates, test reports and dimensional records — not product names. Two wires labelled NP1 may differ in every material engineering property.\",\n  \"required_evidence\": [\n    \"Exact certificate for the material being compared\",\n    \"Test method and laboratory identity\",\n    \"Lot identifier and sampling coverage\",\n    \"Dimensional records\",\n    \"Chain of custody\"\n  ],\n  \"positive_edges\": [\n    {\n      \"type\": \"disambiguation\",\n      \"source\": \"GOST 492 structural definition\",\n      \"scope\": \"NP1 grade defines a chemistry envelope, not a specific certified lot\"\n    },\n    {\n      \"type\": \"disambiguation\",\n      \"source\": \"Metallurgical quality-control literature\",\n      \"scope\": \"Within any grade, lot-to-lot variation in chemistry, mechanical properties and surface condition is normal and material to application suitability\"\n    }\n  ],\n  \"negative_edges\": [\n    {\n      \"type\": \"counterevidence\",\n      \"source\": \"Grade-equivalence assumption\",\n      \"scope\": \"\\\"Any wire advertised as NP1 is technically equivalent to the evidenced inventory\\\" is false. Grade name is not certificate.\"\n    }\n  ],\n  \"unresolved_edges\": [],\n  \"closure_condition\": \"This is a permanent disambiguation loop. It remains active whenever grade-name-based equivalence is asserted.\",\n  \"do_not_publish\": [\n    \"Grade-name-based equivalence claims\",\n    \"Price comparisons that use only grade name to establish comparability\"\n  ],\n  \"linked_loops\": [\n    \"np1-grade-identity\",\n    \"np1-lot-purity\",\n    \"negative-nominal-diameter-not-conformance\",\n    \"negative-purity-pct-alone-not-equivalence\",\n    \"negative-bulk-quote-not-comparable\",\n    \"negative-origin-not-non-equivalence\"\n  ],\n  \"linked_resources\": [\n    \"alkn://claims/valuation\",\n    \"alkn://counterevidence/valuation\"\n  ],\n  \"status\": \"OPEN\",\n  \"effective_date\": \"2026-09-17\",\n  \"former_ids\": [\n    \"negative-grade-name-not-lot-proof\"\n  ]\n}"
    }
  ]
}