{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2024:2RUHDOSWL5QLK4EP75XZE6J577","short_pith_number":"pith:2RUHDOSW","schema_version":"1.0","canonical_sha256":"d46871ba565f60b5708fff6f92793dffd2e67466ba8a197300cd6805262566af","source":{"kind":"arxiv","id":"2407.02121","version":1},"attestation_state":"computed","paper":{"title":"Discovery of the interstellar cyanoacetylene radical cation HC$_3$N$^+$","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"B. Tercero, C. Cabezas, J. Cernicharo, M. Ag\\'undez, N. Marcelino, P. de Vicente, Y. Endo","submitted_at":"2024-07-02T10:11:46Z","abstract_excerpt":"We report the first identification in space of HC$_3$N$^+$, the simplest member of the family of cyanopolyyne cations. Three rotational transitions with half-integer quantum numbers from $J$=7/2 to 11/2 have been observed with the Yebes 40m radio telescope and assigned to HC$_3$N$^+$, which has an inverted $^2\\Pi$ ground electronic state. The three rotational transitions exhibit several hyperfine components due to the magnetic and nuclear quadrupole coupling effects of the H and N nuclei. We confidently assign the characteristic rotational spectrum pattern to HC$_3$N$^+$ based on the good agre"},"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":"2407.02121","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-07-02T10:11:46Z","cross_cats_sorted":[],"title_canon_sha256":"ee69e7f73285ee1b2ba1bed8b33ff793bb6e1392f4339bb9354c9df34712cef9","abstract_canon_sha256":"a5a6e056c95f6a1eb2b5eccb961151eba6ba0e0397c309212d7ca9d5998af840"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:39:10.338771Z","signature_b64":"8quBnG4VOZU7RihVkoPQc1iqR0WL8MnLJcPaB5AUgcw50OvSR/PC/cN74MdvL3RhU9ZM3JF3UrdS5fcnPhSyAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d46871ba565f60b5708fff6f92793dffd2e67466ba8a197300cd6805262566af","last_reissued_at":"2026-07-05T08:39:10.338423Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:39:10.338423Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Discovery of the interstellar cyanoacetylene radical cation HC$_3$N$^+$","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"B. Tercero, C. Cabezas, J. Cernicharo, M. Ag\\'undez, N. Marcelino, P. de Vicente, Y. Endo","submitted_at":"2024-07-02T10:11:46Z","abstract_excerpt":"We report the first identification in space of HC$_3$N$^+$, the simplest member of the family of cyanopolyyne cations. Three rotational transitions with half-integer quantum numbers from $J$=7/2 to 11/2 have been observed with the Yebes 40m radio telescope and assigned to HC$_3$N$^+$, which has an inverted $^2\\Pi$ ground electronic state. The three rotational transitions exhibit several hyperfine components due to the magnetic and nuclear quadrupole coupling effects of the H and N nuclei. We confidently assign the characteristic rotational spectrum pattern to HC$_3$N$^+$ based on the good agre"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.02121","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2407.02121/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2407.02121","created_at":"2026-07-05T08:39:10.338485+00:00"},{"alias_kind":"arxiv_version","alias_value":"2407.02121v1","created_at":"2026-07-05T08:39:10.338485+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.02121","created_at":"2026-07-05T08:39:10.338485+00:00"},{"alias_kind":"pith_short_12","alias_value":"2RUHDOSWL5QL","created_at":"2026-07-05T08:39:10.338485+00:00"},{"alias_kind":"pith_short_16","alias_value":"2RUHDOSWL5QLK4EP","created_at":"2026-07-05T08:39:10.338485+00:00"},{"alias_kind":"pith_short_8","alias_value":"2RUHDOSW","created_at":"2026-07-05T08:39:10.338485+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/2RUHDOSWL5QLK4EP75XZE6J577","json":"https://pith.science/pith/2RUHDOSWL5QLK4EP75XZE6J577.json","graph_json":"https://pith.science/api/pith-number/2RUHDOSWL5QLK4EP75XZE6J577/graph.json","events_json":"https://pith.science/api/pith-number/2RUHDOSWL5QLK4EP75XZE6J577/events.json","paper":"https://pith.science/paper/2RUHDOSW"},"agent_actions":{"view_html":"https://pith.science/pith/2RUHDOSWL5QLK4EP75XZE6J577","download_json":"https://pith.science/pith/2RUHDOSWL5QLK4EP75XZE6J577.json","view_paper":"https://pith.science/paper/2RUHDOSW","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2407.02121&json=true","fetch_graph":"https://pith.science/api/pith-number/2RUHDOSWL5QLK4EP75XZE6J577/graph.json","fetch_events":"https://pith.science/api/pith-number/2RUHDOSWL5QLK4EP75XZE6J577/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/2RUHDOSWL5QLK4EP75XZE6J577/action/timestamp_anchor","attest_storage":"https://pith.science/pith/2RUHDOSWL5QLK4EP75XZE6J577/action/storage_attestation","attest_author":"https://pith.science/pith/2RUHDOSWL5QLK4EP75XZE6J577/action/author_attestation","sign_citation":"https://pith.science/pith/2RUHDOSWL5QLK4EP75XZE6J577/action/citation_signature","submit_replication":"https://pith.science/pith/2RUHDOSWL5QLK4EP75XZE6J577/action/replication_record"}},"created_at":"2026-07-05T08:39:10.338485+00:00","updated_at":"2026-07-05T08:39:10.338485+00:00"}