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To investigate the innermost structure of such high-mass star-forming regions, we observed vibrationally excited HCN (via the direct $\\ell$-type transition of v2=1, $\\Delta J$=0, J=13, which lies 1400 K above ground) toward the massive hot molecular cores G10.47+0.03, SgrB2-N, and SgrB2-M with the Very Large Array (VLA) at 7 mm"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1103.2088","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-03-10T17:41:16Z","cross_cats_sorted":[],"title_canon_sha256":"71e1876d9bd48adaa789c4360667814f458109217e68b445a1545400c03140b1","abstract_canon_sha256":"3a2417a213526c37759be96f95a1a9fbed4478bdf2cc61c4bd34ff5fb71623bd"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:02:55.006000Z","signature_b64":"kDB7lqV5wbi5N/RnXrRbSh3xfLBkYvm8bpmDqCmKgvuCusbmfSoSL6yfjWurRRsU8UCfT4NoXi0V2k9waVcwAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8e447234ad696842ee029635bcf0ee80164f1066aec0d4df3a4854cf9da7ca97","last_reissued_at":"2026-05-18T02:02:55.005458Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:02:55.005458Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Hot HCN around young massive stars at 0.1\" resolution","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Arnaud Belloche, Cornelis Dullemond, Friedrich Wyrowski, Karl M. 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