{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:I5YUG3UKWBUFSYUG74RGCTMXP4","short_pith_number":"pith:I5YUG3UK","schema_version":"1.0","canonical_sha256":"4771436e8ab068596286ff22614d977f0bbda2d2e71d59945d66912b8ad7dff2","source":{"kind":"arxiv","id":"1209.3801","version":1},"attestation_state":"computed","paper":{"title":"Substellar-Mass Condensations in Prestellar Cores","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Fumitaka Nakamura (NAOJ), Ryohei Kawabe (NAOJ), Shigehisa Takakuwa (ASIAA)","submitted_at":"2012-09-17T21:25:52Z","abstract_excerpt":"We present combined Submillimeter-Array (SMA) + single-dish images of the (sub)millimeter dust continuum emission toward two prestellar cores SM1 and B2-N5 in the nearest star cluster forming region, $\\rho$ Ophiuchus. Our combined images indicate that SM1 and B2-N5 consist of three and four condensations, respectively, with masses of $10^{-2}-10^{-1}M_\\odot$ and sizes of a few hundred AU. The individual condensations have mean densities of $10^8-10^9$ cm$^{-3}$ and the masses are comparable to or larger than the critical Bonner-Ebert mass, indicating that the self-gravity plays an important ro"},"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":"1209.3801","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-09-17T21:25:52Z","cross_cats_sorted":[],"title_canon_sha256":"fb3150c8b0b6f3933279b2f637ce56d2625dd741dda98cc94aad7e081ec3823f","abstract_canon_sha256":"f716493bad3e1c4fff024cda8e822bd84eeeab4ba19abfb38d1d75d046838b20"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:54:27.139526Z","signature_b64":"+WrF6F8hP58/X6jseDMB7z7PUbmqACKr0feqv6iHldOhHDrNM50fU2/ZBBOtVreNeHrPMUJJNQAxfiW+bf25Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4771436e8ab068596286ff22614d977f0bbda2d2e71d59945d66912b8ad7dff2","last_reissued_at":"2026-05-18T01:54:27.138926Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:54:27.138926Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Substellar-Mass Condensations in Prestellar Cores","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Fumitaka Nakamura (NAOJ), Ryohei Kawabe (NAOJ), Shigehisa Takakuwa (ASIAA)","submitted_at":"2012-09-17T21:25:52Z","abstract_excerpt":"We present combined Submillimeter-Array (SMA) + single-dish images of the (sub)millimeter dust continuum emission toward two prestellar cores SM1 and B2-N5 in the nearest star cluster forming region, $\\rho$ Ophiuchus. Our combined images indicate that SM1 and B2-N5 consist of three and four condensations, respectively, with masses of $10^{-2}-10^{-1}M_\\odot$ and sizes of a few hundred AU. The individual condensations have mean densities of $10^8-10^9$ cm$^{-3}$ and the masses are comparable to or larger than the critical Bonner-Ebert mass, indicating that the self-gravity plays an important ro"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1209.3801","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":"1209.3801","created_at":"2026-05-18T01:54:27.139004+00:00"},{"alias_kind":"arxiv_version","alias_value":"1209.3801v1","created_at":"2026-05-18T01:54:27.139004+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1209.3801","created_at":"2026-05-18T01:54:27.139004+00:00"},{"alias_kind":"pith_short_12","alias_value":"I5YUG3UKWBUF","created_at":"2026-05-18T12:27:09.501522+00:00"},{"alias_kind":"pith_short_16","alias_value":"I5YUG3UKWBUFSYUG","created_at":"2026-05-18T12:27:09.501522+00:00"},{"alias_kind":"pith_short_8","alias_value":"I5YUG3UK","created_at":"2026-05-18T12:27:09.501522+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/I5YUG3UKWBUFSYUG74RGCTMXP4","json":"https://pith.science/pith/I5YUG3UKWBUFSYUG74RGCTMXP4.json","graph_json":"https://pith.science/api/pith-number/I5YUG3UKWBUFSYUG74RGCTMXP4/graph.json","events_json":"https://pith.science/api/pith-number/I5YUG3UKWBUFSYUG74RGCTMXP4/events.json","paper":"https://pith.science/paper/I5YUG3UK"},"agent_actions":{"view_html":"https://pith.science/pith/I5YUG3UKWBUFSYUG74RGCTMXP4","download_json":"https://pith.science/pith/I5YUG3UKWBUFSYUG74RGCTMXP4.json","view_paper":"https://pith.science/paper/I5YUG3UK","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1209.3801&json=true","fetch_graph":"https://pith.science/api/pith-number/I5YUG3UKWBUFSYUG74RGCTMXP4/graph.json","fetch_events":"https://pith.science/api/pith-number/I5YUG3UKWBUFSYUG74RGCTMXP4/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/I5YUG3UKWBUFSYUG74RGCTMXP4/action/timestamp_anchor","attest_storage":"https://pith.science/pith/I5YUG3UKWBUFSYUG74RGCTMXP4/action/storage_attestation","attest_author":"https://pith.science/pith/I5YUG3UKWBUFSYUG74RGCTMXP4/action/author_attestation","sign_citation":"https://pith.science/pith/I5YUG3UKWBUFSYUG74RGCTMXP4/action/citation_signature","submit_replication":"https://pith.science/pith/I5YUG3UKWBUFSYUG74RGCTMXP4/action/replication_record"}},"created_at":"2026-05-18T01:54:27.139004+00:00","updated_at":"2026-05-18T01:54:27.139004+00:00"}