{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:HSGZEENAIBNEDGWNOAS3LIORHW","short_pith_number":"pith:HSGZEENA","schema_version":"1.0","canonical_sha256":"3c8d9211a0405a419acd7025b5a1d13d933ed5f650ad0ec26f4c1024ded2c609","source":{"kind":"arxiv","id":"1701.04640","version":1},"attestation_state":"computed","paper":{"title":"Rotational spectroscopy, tentative interstellar detection, and chemical modelling of N-methylformamide","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. A. Meshcheryakov, A. Belloche, E. A. Alekseev, H. S. P. M\\\"uller, K. M. Menten, L. Margul\\`es, R. A. Motiyenko, R. T. Garrod, V. V. Ilyushin","submitted_at":"2017-01-17T12:15:15Z","abstract_excerpt":"N-methylformamide, CH3NHCHO, may be an important molecule for interstellar pre-biotic chemistry because it contains a peptide bond. The rotational spectrum of the most stable trans conformer of CH3NHCHO is complicated by strong torsion-rotation interaction due to the low barrier of the methyl torsion. We use two absorption spectrometers in Kharkiv and Lille to measure the rotational spectra over 45--630 GHz. The analysis is carried out using the Rho-axis method and the RAM36 code. We search for N-methylformamide toward the hot molecular core Sgr B2(N2) using a spectral line survey carried out "},"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":"1701.04640","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-01-17T12:15:15Z","cross_cats_sorted":[],"title_canon_sha256":"b73b9502c4e47d0ce09dcbe8de9f5e12d5232d54ec6fe4d66118194935679b31","abstract_canon_sha256":"6520cd8ad91e741c4d1bdfd64de295f51e838e889c618fc218c8351e32898b8a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:45:14.244616Z","signature_b64":"ohXF47j1mloz7kaA5rLCtEbmKscuY2aHXk66wwD/wtIG1zH4bcBq1sasdcOOHbLmEPlCWlRULxmsYoYdmmYcDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3c8d9211a0405a419acd7025b5a1d13d933ed5f650ad0ec26f4c1024ded2c609","last_reissued_at":"2026-05-18T00:45:14.243880Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:45:14.243880Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Rotational spectroscopy, tentative interstellar detection, and chemical modelling of N-methylformamide","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. A. Meshcheryakov, A. Belloche, E. A. Alekseev, H. S. P. M\\\"uller, K. M. Menten, L. Margul\\`es, R. A. Motiyenko, R. T. Garrod, V. V. Ilyushin","submitted_at":"2017-01-17T12:15:15Z","abstract_excerpt":"N-methylformamide, CH3NHCHO, may be an important molecule for interstellar pre-biotic chemistry because it contains a peptide bond. The rotational spectrum of the most stable trans conformer of CH3NHCHO is complicated by strong torsion-rotation interaction due to the low barrier of the methyl torsion. We use two absorption spectrometers in Kharkiv and Lille to measure the rotational spectra over 45--630 GHz. The analysis is carried out using the Rho-axis method and the RAM36 code. We search for N-methylformamide toward the hot molecular core Sgr B2(N2) using a spectral line survey carried out "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.04640","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"1701.04640","created_at":"2026-05-18T00:45:14.243995+00:00"},{"alias_kind":"arxiv_version","alias_value":"1701.04640v1","created_at":"2026-05-18T00:45:14.243995+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.04640","created_at":"2026-05-18T00:45:14.243995+00:00"},{"alias_kind":"pith_short_12","alias_value":"HSGZEENAIBNE","created_at":"2026-05-18T12:31:18.294218+00:00"},{"alias_kind":"pith_short_16","alias_value":"HSGZEENAIBNEDGWN","created_at":"2026-05-18T12:31:18.294218+00:00"},{"alias_kind":"pith_short_8","alias_value":"HSGZEENA","created_at":"2026-05-18T12:31:18.294218+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/HSGZEENAIBNEDGWNOAS3LIORHW","json":"https://pith.science/pith/HSGZEENAIBNEDGWNOAS3LIORHW.json","graph_json":"https://pith.science/api/pith-number/HSGZEENAIBNEDGWNOAS3LIORHW/graph.json","events_json":"https://pith.science/api/pith-number/HSGZEENAIBNEDGWNOAS3LIORHW/events.json","paper":"https://pith.science/paper/HSGZEENA"},"agent_actions":{"view_html":"https://pith.science/pith/HSGZEENAIBNEDGWNOAS3LIORHW","download_json":"https://pith.science/pith/HSGZEENAIBNEDGWNOAS3LIORHW.json","view_paper":"https://pith.science/paper/HSGZEENA","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1701.04640&json=true","fetch_graph":"https://pith.science/api/pith-number/HSGZEENAIBNEDGWNOAS3LIORHW/graph.json","fetch_events":"https://pith.science/api/pith-number/HSGZEENAIBNEDGWNOAS3LIORHW/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/HSGZEENAIBNEDGWNOAS3LIORHW/action/timestamp_anchor","attest_storage":"https://pith.science/pith/HSGZEENAIBNEDGWNOAS3LIORHW/action/storage_attestation","attest_author":"https://pith.science/pith/HSGZEENAIBNEDGWNOAS3LIORHW/action/author_attestation","sign_citation":"https://pith.science/pith/HSGZEENAIBNEDGWNOAS3LIORHW/action/citation_signature","submit_replication":"https://pith.science/pith/HSGZEENAIBNEDGWNOAS3LIORHW/action/replication_record"}},"created_at":"2026-05-18T00:45:14.243995+00:00","updated_at":"2026-05-18T00:45:14.243995+00:00"}