{"ok":true,"preview":{"status":"private-technical-preview","availability":"not-generally-available","schema":"terminal-weather.observation","schemaVersion":"v1-preview","notice":"This private technical preview is generated from current public-path data. Customer API access is not yet available.","safetyNotice":"For non-safety-critical evaluation only. Not for aircraft navigation, communication or control.","sourceContextNotice":"Source paths are public distribution endpoints. They may carry the same underlying official observation and are not independent observations."},"meta":{"station":"EHAM","snapshotAt":"2026-11-10T17:48:45.891Z","servedAt":"2026-11-10T17:48:46.988Z","cache":{"status":"persistent","ageSeconds":1.097,"revalidating":false}},"data":{"station":{"icao":"EHAM","name":"Amsterdam Airport Schiphol","country":"Netherlands"},"observation":{"observedAt":"2026-11-10T17:25:00.000Z","observedAtBasis":"Latest observation time across available source paths","reportKind":"METAR","flags":{"automatic":false,"correction":false,"nil":false},"canonicalVariants":[{"canonicalTac":"EHAM 101725Z 07007KT 3500 BR FEW001 SCT002 BKN003 04/04 Q1010 BECMG 2500 BKN002","sourcePathIds":["awc","met_norway","nws_tgftp"]}]},"integrity":{"state":"aligned","summary":"All available paths show the same observation time and canonical TAC content.","availablePathCount":3,"expectedPathCount":3,"missingPathIds":[],"undatedPathIds":[],"laggingPathIds":[],"observationTimeAligned":true,"canonicalContentAligned":true,"variantCount":1,"tokenDifferences":[],"comparisonBasis":"Canonical TAC content and observation times in the current Terminal Weather fetch snapshot."},"timestamps":{"observation":{"value":"2026-11-10T17:25:00.000Z","provenance":"Latest compared report observation time across available source paths"},"terminalWeather":{"value":"2026-11-10T17:48:45.891Z","provenance":"Terminal Weather fetch completion"}},"representations":[{"sourcePathId":"awc","available":true,"rawTac":"METAR EHAM 101725Z 07007KT 3500 BR FEW001 SCT002 BKN003 04/04 Q1010 BECMG 2500 BKN002","canonicalTac":"EHAM 101725Z 07007KT 3500 BR FEW001 SCT002 BKN003 04/04 Q1010 BECMG 2500 BKN002","fingerprint":{"algorithm":"SHA-256","value":"77e65c3a3411131dec6364104b06dfc435eb37bd18b68116b650e5e473341157"},"observedAt":"2026-11-10T17:25:00.000Z","reportKind":"METAR","flags":{"automatic":false,"correction":false,"nil":false}},{"sourcePathId":"met_norway","available":true,"rawTac":"EHAM 101725Z 07007KT 3500 BR FEW001 SCT002 BKN003 04/04 Q1010 BECMG 2500 BKN002=","canonicalTac":"EHAM 101725Z 07007KT 3500 BR FEW001 SCT002 BKN003 04/04 Q1010 BECMG 2500 BKN002","fingerprint":{"algorithm":"SHA-256","value":"fcb92c6b259ca4d5edbe3854cad56be42ac7e30e4dc3e012c8243627f35f8cfe"},"observedAt":"2026-11-10T17:25:00.000Z","reportKind":"METAR","flags":{"automatic":false,"correction":false,"nil":false}},{"sourcePathId":"nws_tgftp","available":true,"rawTac":"EHAM 101725Z 07007KT 3500 BR FEW001 SCT002 BKN003 04/04 Q1010 BECMG 2500 BKN002","canonicalTac":"EHAM 101725Z 07007KT 3500 BR FEW001 SCT002 BKN003 04/04 Q1010 BECMG 2500 BKN002","fingerprint":{"algorithm":"SHA-256","value":"629eb47e281156ff43bc1b02edce78e0291f685dd4afab59e6e57cd6824b7d8a"},"observedAt":"2026-11-10T17:25:00.000Z","reportKind":"METAR","flags":{"automatic":false,"correction":false,"nil":false}}],"sourcePaths":[{"id":"awc","name":"Aviation Weather Center Data API","organisation":"NOAA Aviation Weather Center","distributionPath":"JSON data API","classification":"public-distribution-path","status":"available","pathStatus":"ok","timestampProvenance":"AWC receiptTime (report-specific)","timestamps":{"observation":{"value":"2026-11-10T17:25:00.000Z","provenance":"AWC obsTime"},"source":{"value":"2026-11-10T17:28:03.385Z","provenance":"AWC receiptTime (report-specific)"},"terminalWeather":{"value":"2026-11-10T17:48:45.602Z","provenance":"Terminal Weather fetch completion"}}},{"id":"met_norway","name":"MET Norway Tafmetar","organisation":"Norwegian Meteorological Institute","distributionPath":"TAC text feed","classification":"public-distribution-path","status":"available","pathStatus":"ok","timestampProvenance":"HTTP Last-Modified (response-wide)","timestamps":{"observation":{"value":"2026-11-10T17:25:00.000Z","provenance":"Derived from TAC day-time group"},"source":{"value":"2026-11-10T17:48:45.000Z","provenance":"HTTP Last-Modified (response-wide)"},"terminalWeather":{"value":"2026-11-10T17:48:45.891Z","provenance":"Terminal Weather fetch completion"}}},{"id":"nws_tgftp","name":"NWS TGFTP station files","organisation":"NOAA National Weather Service","distributionPath":"Per-station TAC files","classification":"public-distribution-path","status":"available","pathStatus":"ok","timestampProvenance":"HTTP Last-Modified (station file)","timestamps":{"observation":{"value":"2026-11-10T17:25:00.000Z","provenance":"Derived from TAC day-time group"},"source":{"value":"2026-11-10T17:27:12.000Z","provenance":"HTTP Last-Modified (station file)"},"terminalWeather":{"value":"2026-11-10T17:48:45.556Z","provenance":"Terminal Weather fetch completion"}}}],"events":[{"type":"terminal-weather.integrity.snapshot","basis":"current-snapshot","detectedAt":"2026-11-10T17:48:45.891Z","station":"EHAM","data":{"state":"aligned","latestObservedAt":"2026-11-10T17:25:00.000Z","availablePathCount":3,"expectedPathCount":3},"derivedFrom":["awc","met_norway","nws_tgftp"]}]}}