{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:B2YSUEECGZ2UYFP6JH7I225DG6","short_pith_number":"pith:B2YSUEEC","schema_version":"1.0","canonical_sha256":"0eb12a108236754c15fe49fe8d6ba337a79792b5c787b24aa26e58197522b2e2","source":{"kind":"arxiv","id":"1211.4776","version":1},"attestation_state":"computed","paper":{"title":"A sensitive survey for 13CO, CN, H2CO and SO in the disks of T Tauri and Herbig Ae stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"2), (4) Observatoire Astronomique de Strasbourg, A. Dutrey (1, Astronomy, E. Di Folco (1, France), France (2) CNRS, France (3) Department of Physics, France (5) IRAM, LAB, M. Simon (3), N. Grosso (4), S. Guilloteau (1, Stony Brook University, Universit\\'e de Strasbourg, V. Pi\\'etu (5) ((1) Univ. Bordeaux","submitted_at":"2012-11-20T15:29:27Z","abstract_excerpt":"We use the IRAM 30-m telescope to perform a sensitive search for CN N=2-1 in 42 T Tauri or Herbig Ae systems located mostly in the Taurus-Auriga region. $^{13}$CO J=2-1 is observed simultaneously to indicate the level of confusion with the surrounding molecular cloud. The bandpass also contains two transitions of ortho-H$_2$CO, one of SO and the C$^{17}$O J=2-1 line which provide complementary information on the nature of the emission.\n  While $^{13}$CO is in general dominated by residual emission from the cloud, CN exhibits a high disk detection rate $> 50$% in our sample. We even report CN d"},"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":"1211.4776","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-11-20T15:29:27Z","cross_cats_sorted":[],"title_canon_sha256":"a6063e298efa33c6306901dee8a21dd2fb1e6ac24796c853da01276c9e35322f","abstract_canon_sha256":"2f5b2fb8eb3436a69d645b9cfc0b1e11d8ab75cc91755673111079eb41a7bf33"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:53:02.479880Z","signature_b64":"nkgkHsyrSbh7bJBWroAp9OXAbrPs/e1JhIhFvzb5sdRjXuKeWXsKh4C3gw5jsrsxLN2Xa+pNJHXe4+LATRGEAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0eb12a108236754c15fe49fe8d6ba337a79792b5c787b24aa26e58197522b2e2","last_reissued_at":"2026-05-18T01:53:02.479400Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:53:02.479400Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A sensitive survey for 13CO, CN, H2CO and SO in the disks of T Tauri and Herbig Ae stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"2), (4) Observatoire Astronomique de Strasbourg, A. Dutrey (1, Astronomy, E. Di Folco (1, France), France (2) CNRS, France (3) Department of Physics, France (5) IRAM, LAB, M. Simon (3), N. Grosso (4), S. Guilloteau (1, Stony Brook University, Universit\\'e de Strasbourg, V. Pi\\'etu (5) ((1) Univ. Bordeaux","submitted_at":"2012-11-20T15:29:27Z","abstract_excerpt":"We use the IRAM 30-m telescope to perform a sensitive search for CN N=2-1 in 42 T Tauri or Herbig Ae systems located mostly in the Taurus-Auriga region. $^{13}$CO J=2-1 is observed simultaneously to indicate the level of confusion with the surrounding molecular cloud. The bandpass also contains two transitions of ortho-H$_2$CO, one of SO and the C$^{17}$O J=2-1 line which provide complementary information on the nature of the emission.\n  While $^{13}$CO is in general dominated by residual emission from the cloud, CN exhibits a high disk detection rate $> 50$% in our sample. We even report CN d"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1211.4776","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":"1211.4776","created_at":"2026-05-18T01:53:02.479476+00:00"},{"alias_kind":"arxiv_version","alias_value":"1211.4776v1","created_at":"2026-05-18T01:53:02.479476+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1211.4776","created_at":"2026-05-18T01:53:02.479476+00:00"},{"alias_kind":"pith_short_12","alias_value":"B2YSUEECGZ2U","created_at":"2026-05-18T12:26:58.693483+00:00"},{"alias_kind":"pith_short_16","alias_value":"B2YSUEECGZ2UYFP6","created_at":"2026-05-18T12:26:58.693483+00:00"},{"alias_kind":"pith_short_8","alias_value":"B2YSUEEC","created_at":"2026-05-18T12:26:58.693483+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/B2YSUEECGZ2UYFP6JH7I225DG6","json":"https://pith.science/pith/B2YSUEECGZ2UYFP6JH7I225DG6.json","graph_json":"https://pith.science/api/pith-number/B2YSUEECGZ2UYFP6JH7I225DG6/graph.json","events_json":"https://pith.science/api/pith-number/B2YSUEECGZ2UYFP6JH7I225DG6/events.json","paper":"https://pith.science/paper/B2YSUEEC"},"agent_actions":{"view_html":"https://pith.science/pith/B2YSUEECGZ2UYFP6JH7I225DG6","download_json":"https://pith.science/pith/B2YSUEECGZ2UYFP6JH7I225DG6.json","view_paper":"https://pith.science/paper/B2YSUEEC","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1211.4776&json=true","fetch_graph":"https://pith.science/api/pith-number/B2YSUEECGZ2UYFP6JH7I225DG6/graph.json","fetch_events":"https://pith.science/api/pith-number/B2YSUEECGZ2UYFP6JH7I225DG6/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/B2YSUEECGZ2UYFP6JH7I225DG6/action/timestamp_anchor","attest_storage":"https://pith.science/pith/B2YSUEECGZ2UYFP6JH7I225DG6/action/storage_attestation","attest_author":"https://pith.science/pith/B2YSUEECGZ2UYFP6JH7I225DG6/action/author_attestation","sign_citation":"https://pith.science/pith/B2YSUEECGZ2UYFP6JH7I225DG6/action/citation_signature","submit_replication":"https://pith.science/pith/B2YSUEECGZ2UYFP6JH7I225DG6/action/replication_record"}},"created_at":"2026-05-18T01:53:02.479476+00:00","updated_at":"2026-05-18T01:53:02.479476+00:00"}