{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2021:BVOPRKK3UXIKFFLEUYGEMUYOFP","short_pith_number":"pith:BVOPRKK3","schema_version":"1.0","canonical_sha256":"0d5cf8a95ba5d0a29564a60c46530e2be490e2c5534d13bdff404d0170d4414a","source":{"kind":"arxiv","id":"2111.05801","version":1},"attestation_state":"computed","paper":{"title":"The VLA/ALMA Nascent Disk and Multiplicity (VANDAM) Survey of Orion Protostars V. A Characterization of Protostellar Multiplicity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"Amelia M. Stutz (Concepcion), Ana Karla Diaz-Rodriguez (Manchester), Copenhagen), Dominique Segura-Cox (MPE, Elise Furlan (IPAC/Caltech), Ewine F. van Dishoeck (Leiden), Guillem Anglada (IAA), John J. Tobin (NRAO), Kaitlin M. Kratter (Arizona), Leslie W. Looney (Illinois), Lukasz Tychoniec (ESO), Mayra Osorio (IAA), Merel L. R. van 't Hoff (Michigan), Nicole Karnath (SOFIA), Patrick D. Sheehan (Northwestern), Rajeeb Sharma (Oklahoma, Sarah I. Sadavoy (Queen's U.), Stella S. R. Offner (Texas), S. Thomas Megeath (Toldeo), Texas), Zhi-Yun Li (Virginia)","submitted_at":"2021-11-08T19:00:01Z","abstract_excerpt":"We characterize protostellar multiplicity in the Orion molecular clouds using ALMA 0.87~mm and VLA 9~mm continuum surveys toward 328 protostars. These observations are sensitive to projected spatial separations as small as $\\sim$20~au, and we consider source separations up to 10$^4$~au as potential companions. The overall multiplicity fraction (MF) and companion fraction (CF) for the Orion protostars are 0.30$\\pm$0.03 and 0.44$\\pm$0.03, respectively, considering separations from 20 to 10$^4$~au. The MFs and CFs are corrected for potential contamination by unassociated young stars using a proba"},"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":"2111.05801","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-11-08T19:00:01Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"92cf7d94203481c6e2db299cd8af8a2c48f7ad63c0803a514ab19cb4a93d4cab","abstract_canon_sha256":"6611ddf23e3075ec2e51ea6d06f9528427d60fb0680743aeb75b3f4de3431839"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:53:10.992498Z","signature_b64":"USnZAx/QAcX1mqYUz/UJjoAuFpdrdnF97KegMcbNTLcnr9uwfsgMzLhkbAJaueNBr4pNbXyMeKLXSBvSmwsACQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0d5cf8a95ba5d0a29564a60c46530e2be490e2c5534d13bdff404d0170d4414a","last_reissued_at":"2026-07-05T03:53:10.991989Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:53:10.991989Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The VLA/ALMA Nascent Disk and Multiplicity (VANDAM) Survey of Orion Protostars V. A Characterization of Protostellar Multiplicity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"Amelia M. Stutz (Concepcion), Ana Karla Diaz-Rodriguez (Manchester), Copenhagen), Dominique Segura-Cox (MPE, Elise Furlan (IPAC/Caltech), Ewine F. van Dishoeck (Leiden), Guillem Anglada (IAA), John J. Tobin (NRAO), Kaitlin M. Kratter (Arizona), Leslie W. Looney (Illinois), Lukasz Tychoniec (ESO), Mayra Osorio (IAA), Merel L. R. van 't Hoff (Michigan), Nicole Karnath (SOFIA), Patrick D. Sheehan (Northwestern), Rajeeb Sharma (Oklahoma, Sarah I. Sadavoy (Queen's U.), Stella S. R. Offner (Texas), S. Thomas Megeath (Toldeo), Texas), Zhi-Yun Li (Virginia)","submitted_at":"2021-11-08T19:00:01Z","abstract_excerpt":"We characterize protostellar multiplicity in the Orion molecular clouds using ALMA 0.87~mm and VLA 9~mm continuum surveys toward 328 protostars. These observations are sensitive to projected spatial separations as small as $\\sim$20~au, and we consider source separations up to 10$^4$~au as potential companions. The overall multiplicity fraction (MF) and companion fraction (CF) for the Orion protostars are 0.30$\\pm$0.03 and 0.44$\\pm$0.03, respectively, considering separations from 20 to 10$^4$~au. The MFs and CFs are corrected for potential contamination by unassociated young stars using a proba"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2111.05801","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/2111.05801/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":"2111.05801","created_at":"2026-07-05T03:53:10.992051+00:00"},{"alias_kind":"arxiv_version","alias_value":"2111.05801v1","created_at":"2026-07-05T03:53:10.992051+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2111.05801","created_at":"2026-07-05T03:53:10.992051+00:00"},{"alias_kind":"pith_short_12","alias_value":"BVOPRKK3UXIK","created_at":"2026-07-05T03:53:10.992051+00:00"},{"alias_kind":"pith_short_16","alias_value":"BVOPRKK3UXIKFFLE","created_at":"2026-07-05T03:53:10.992051+00:00"},{"alias_kind":"pith_short_8","alias_value":"BVOPRKK3","created_at":"2026-07-05T03:53:10.992051+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/BVOPRKK3UXIKFFLEUYGEMUYOFP","json":"https://pith.science/pith/BVOPRKK3UXIKFFLEUYGEMUYOFP.json","graph_json":"https://pith.science/api/pith-number/BVOPRKK3UXIKFFLEUYGEMUYOFP/graph.json","events_json":"https://pith.science/api/pith-number/BVOPRKK3UXIKFFLEUYGEMUYOFP/events.json","paper":"https://pith.science/paper/BVOPRKK3"},"agent_actions":{"view_html":"https://pith.science/pith/BVOPRKK3UXIKFFLEUYGEMUYOFP","download_json":"https://pith.science/pith/BVOPRKK3UXIKFFLEUYGEMUYOFP.json","view_paper":"https://pith.science/paper/BVOPRKK3","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2111.05801&json=true","fetch_graph":"https://pith.science/api/pith-number/BVOPRKK3UXIKFFLEUYGEMUYOFP/graph.json","fetch_events":"https://pith.science/api/pith-number/BVOPRKK3UXIKFFLEUYGEMUYOFP/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/BVOPRKK3UXIKFFLEUYGEMUYOFP/action/timestamp_anchor","attest_storage":"https://pith.science/pith/BVOPRKK3UXIKFFLEUYGEMUYOFP/action/storage_attestation","attest_author":"https://pith.science/pith/BVOPRKK3UXIKFFLEUYGEMUYOFP/action/author_attestation","sign_citation":"https://pith.science/pith/BVOPRKK3UXIKFFLEUYGEMUYOFP/action/citation_signature","submit_replication":"https://pith.science/pith/BVOPRKK3UXIKFFLEUYGEMUYOFP/action/replication_record"}},"created_at":"2026-07-05T03:53:10.992051+00:00","updated_at":"2026-07-05T03:53:10.992051+00:00"}