{"upl":"UPL-SCI-26-100802-EN","title":"Nikolai S. Korotkov: A story of  an unknown surgeon with an  immortal name","author":"Igor E. Konstantinov","publisher":"UplitAu Pty Ltd","environment":"real","payment_verified":true,"tier":"starter","payment":"eth","payment_ref":"0x35b06172eb67e3cdd4360635e0b2abd848e7dfe08dd0efff5b554e80a9a9da1d","amount_aud":null,"timestamp":"2026-08-11T12:20:03.169Z","registered_at":"2026-08-11T12:20:03.336Z","language":"en","file_name":"Korotkov_Igor (2).pdf","file_sha256":"3d2aaf709f782b107c68371fb4e028e6e074c7ea12bcea6fc266e09cecc6fefc","extract_sha256":"d9dcd614aba9ceadd627dfcc58a3b982518dc1b0b32bd6436d80f52e3c1a7be5","derived_from":null,"description":"From the Department of Thoracic and Cardiovascular Surgery, The Carolinas Heart Institute, Charlotte, N.C.\n\n“I have now firmly grasped with my mind and my soul that had suffered so much, that man’s destiny\neither does not exist at all, or exists in one thing only: in a love, full of self-sacrifice for one’s neigh\nbor.”—Anton P. Chekhov (1860-1904), “The Story of an Unknown Man,” 1893","demi_core":{"core_statement":"Korotkov's auscultatory method of measuring arterial blood pressure, first reported in 1905, overcame the limitations of all prior bloodless methods by enabling reliable determination of both systolic and diastolic pressure, and gained acceptance largely through the decisive endorsement of Professor Yanovsky.","propositions":"Prior bloodless methods proposed by Riva-Rocci, Marey, and Recklinghausen were either clinically impractical or incapable of reliably determining diastolic blood pressure, a deficiency Korotkov's auscultatory method resolved. Korotkov presented his method on November 8, 1905, and again on December 13, 1905, after initial scepticism, after which it spread rapidly through Russia, Europe, and America.","constraints":"The Conceptual Core is limited to the historical circumstances of Korotkov's method as described in the excerpt, and does not extend to technical specifications of the method itself or to Korotkov's broader biographical details beyond what is provided. All claims are bounded by the excerpt's account, which ends before fully quoting Gittings's 1910 American assessment.","mechanisms":"Professor Yanovsky's public and unusually rare praise after Korotkov's December 13 report was the decisive mechanism of acceptance in Russia, while verification by Yanovsky's disciples Krilov and Lang established the method's accuracy, and subsequent study in Germany enabled its adoption as a routine procedure abroad.","boundaries":"The excerpt does not detail the physiological or acoustic principles underlying the auscultatory method, nor does it fully describe outcomes in American or English clinical practice, so those dimensions lie outside this Conceptual Core."},"costs":{"claude_aud":null,"openai_aud":null,"service_aud":null,"total_aud":null},"landing_page":"https://demi-proxy.flat-bonus-ffc5.workers.dev/registry/UPL-SCI-26-100802-EN/index.html","ai_fetchable":true,"amount_eth":0.0035,"anchor":{"status":"confirmed","tx_hash":"0x243936896d07db6f477f211cff02cdcbe2f68529d302fb80923121a611d26603","etherscan_url":"https://etherscan.io/tx/0x243936896d07db6f477f211cff02cdcbe2f68529d302fb80923121a611d26603","block_number":25957654,"block_time_utc":"2026-09-12T00:09:47.000Z","submitted_at":null,"digest":"75ee0099272519a306813777ca6d19527aa45414c4c21c5eb8ad15b27fd4b13b","snapshot_url":"https://demi-proxy.flat-bonus-ffc5.workers.dev/registry/anchor/75ee0099272519a306813777ca6d19527aa45414c4c21c5eb8ad15b27fd4b13b.json"}}