{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:PY5YIFGH6WXG6UTATVSD6J7NIY","short_pith_number":"pith:PY5YIFGH","schema_version":"1.0","canonical_sha256":"7e3b8414c7f5ae6f52609d643f27ed46243cf3b768c57dc6c84f99dab18a2f7f","source":{"kind":"arxiv","id":"1905.12773","version":1},"attestation_state":"computed","paper":{"title":"Discovery of CCS Velocity-Coherent Substructures in the Taurus Molecular Cloud 1","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Fumitaka Nakamura, Izumi Mizuno, Kazuhito Dobashi, Kotomi Taniguchi, Seiji Kameno, Tetsu Ochiai, Tomomi Shimoikura","submitted_at":"2019-05-29T23:10:57Z","abstract_excerpt":"We present the results of mapping observations toward a nearby starless filamentary cloud, the Taurus Molecular Cloud 1 (TMC-1), in the CCS(JN=43-32, 45.379033 GHz) emission line, using the Nobeyama 45-m telescope. The map shows that the TMC-1 filament has a diameter of ~0.1 pc and a length of ~0.5 pc at a distance of 140 pc. The position-velocity diagrams of CCS clearly indicate the existence of velocity-coherent substructures in the filament. We identify 21 substructures that are coherent in the position-position-velocity space by eye. Most of the substructures are elongated along the major "},"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":"1905.12773","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-05-29T23:10:57Z","cross_cats_sorted":[],"title_canon_sha256":"59915bad139423732d5cf628934276d5a784e3761971f46a7ec729a5d50b88fb","abstract_canon_sha256":"0abd6ec9d2caa15401f6033aeac2cf7258933c89382fd86562e94c578c5f2a32"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:40:31.668355Z","signature_b64":"yuISRqx14Oq5HyGF5Nan0KCnuktdWUtHM8RK/0XLC5q4ezuTW683/V757x2PEfTzYVHG3zFQEzAP40DqH4uoCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7e3b8414c7f5ae6f52609d643f27ed46243cf3b768c57dc6c84f99dab18a2f7f","last_reissued_at":"2026-05-17T23:40:31.667881Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:40:31.667881Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Discovery of CCS Velocity-Coherent Substructures in the Taurus Molecular Cloud 1","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Fumitaka Nakamura, Izumi Mizuno, Kazuhito Dobashi, Kotomi Taniguchi, Seiji Kameno, Tetsu Ochiai, Tomomi Shimoikura","submitted_at":"2019-05-29T23:10:57Z","abstract_excerpt":"We present the results of mapping observations toward a nearby starless filamentary cloud, the Taurus Molecular Cloud 1 (TMC-1), in the CCS(JN=43-32, 45.379033 GHz) emission line, using the Nobeyama 45-m telescope. The map shows that the TMC-1 filament has a diameter of ~0.1 pc and a length of ~0.5 pc at a distance of 140 pc. The position-velocity diagrams of CCS clearly indicate the existence of velocity-coherent substructures in the filament. We identify 21 substructures that are coherent in the position-position-velocity space by eye. Most of the substructures are elongated along the major "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.12773","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":"1905.12773","created_at":"2026-05-17T23:40:31.667952+00:00"},{"alias_kind":"arxiv_version","alias_value":"1905.12773v1","created_at":"2026-05-17T23:40:31.667952+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.12773","created_at":"2026-05-17T23:40:31.667952+00:00"},{"alias_kind":"pith_short_12","alias_value":"PY5YIFGH6WXG","created_at":"2026-05-18T12:33:24.271573+00:00"},{"alias_kind":"pith_short_16","alias_value":"PY5YIFGH6WXG6UTA","created_at":"2026-05-18T12:33:24.271573+00:00"},{"alias_kind":"pith_short_8","alias_value":"PY5YIFGH","created_at":"2026-05-18T12:33:24.271573+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/PY5YIFGH6WXG6UTATVSD6J7NIY","json":"https://pith.science/pith/PY5YIFGH6WXG6UTATVSD6J7NIY.json","graph_json":"https://pith.science/api/pith-number/PY5YIFGH6WXG6UTATVSD6J7NIY/graph.json","events_json":"https://pith.science/api/pith-number/PY5YIFGH6WXG6UTATVSD6J7NIY/events.json","paper":"https://pith.science/paper/PY5YIFGH"},"agent_actions":{"view_html":"https://pith.science/pith/PY5YIFGH6WXG6UTATVSD6J7NIY","download_json":"https://pith.science/pith/PY5YIFGH6WXG6UTATVSD6J7NIY.json","view_paper":"https://pith.science/paper/PY5YIFGH","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1905.12773&json=true","fetch_graph":"https://pith.science/api/pith-number/PY5YIFGH6WXG6UTATVSD6J7NIY/graph.json","fetch_events":"https://pith.science/api/pith-number/PY5YIFGH6WXG6UTATVSD6J7NIY/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/PY5YIFGH6WXG6UTATVSD6J7NIY/action/timestamp_anchor","attest_storage":"https://pith.science/pith/PY5YIFGH6WXG6UTATVSD6J7NIY/action/storage_attestation","attest_author":"https://pith.science/pith/PY5YIFGH6WXG6UTATVSD6J7NIY/action/author_attestation","sign_citation":"https://pith.science/pith/PY5YIFGH6WXG6UTATVSD6J7NIY/action/citation_signature","submit_replication":"https://pith.science/pith/PY5YIFGH6WXG6UTATVSD6J7NIY/action/replication_record"}},"created_at":"2026-05-17T23:40:31.667952+00:00","updated_at":"2026-05-17T23:40:31.667952+00:00"}