{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2010:A5WS3KUT3IPQZSB3UIOZMJDN7Y","short_pith_number":"pith:A5WS3KUT","schema_version":"1.0","canonical_sha256":"076d2daa93da1f0cc83ba21d96246dfe28affdf9de23c763b9bb3187ad58b7b8","source":{"kind":"arxiv","id":"1009.4604","version":2},"attestation_state":"computed","paper":{"title":"The DDO Close Binary Spectroscopic Program","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Slavek M. Rucinski","submitted_at":"2010-09-23T13:10:53Z","abstract_excerpt":"The survey of radial velocity orbits for short period (P < 1 day), bright (V < 10, with a few fainter stars) conducted at the David Dunlap Observatory in the last 9 years before its closure in 2008 included 162 binaries and resulted in 150 SB2 orbits and 5 SB1 spectroscopic orbits thus becoming one of the main legacies of DDO. The paper summarizes the main results from the survey."},"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":"1009.4604","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-09-23T13:10:53Z","cross_cats_sorted":[],"title_canon_sha256":"b47d7599d5040b96f339ef266715d938249930a8cfb699ee4d64223023697558","abstract_canon_sha256":"6558b227712d67df27b092f833077a7e6d81f404b554e301793919ba51ad9dba"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:39:50.052693Z","signature_b64":"ffJqvthhaE9kDrgIgwb4mug9blOH/AvUZbfl5nhNBA/0Ahvt3IYPxL6y49v3hhl5bXA/CMXofd1lYJZosOdCAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"076d2daa93da1f0cc83ba21d96246dfe28affdf9de23c763b9bb3187ad58b7b8","last_reissued_at":"2026-05-18T04:39:50.052176Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:39:50.052176Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The DDO Close Binary Spectroscopic Program","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Slavek M. Rucinski","submitted_at":"2010-09-23T13:10:53Z","abstract_excerpt":"The survey of radial velocity orbits for short period (P < 1 day), bright (V < 10, with a few fainter stars) conducted at the David Dunlap Observatory in the last 9 years before its closure in 2008 included 162 binaries and resulted in 150 SB2 orbits and 5 SB1 spectroscopic orbits thus becoming one of the main legacies of DDO. The paper summarizes the main results from the survey."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.4604","kind":"arxiv","version":2},"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":"1009.4604","created_at":"2026-05-18T04:39:50.052253+00:00"},{"alias_kind":"arxiv_version","alias_value":"1009.4604v2","created_at":"2026-05-18T04:39:50.052253+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.4604","created_at":"2026-05-18T04:39:50.052253+00:00"},{"alias_kind":"pith_short_12","alias_value":"A5WS3KUT3IPQ","created_at":"2026-05-18T12:26:05.355336+00:00"},{"alias_kind":"pith_short_16","alias_value":"A5WS3KUT3IPQZSB3","created_at":"2026-05-18T12:26:05.355336+00:00"},{"alias_kind":"pith_short_8","alias_value":"A5WS3KUT","created_at":"2026-05-18T12:26:05.355336+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/A5WS3KUT3IPQZSB3UIOZMJDN7Y","json":"https://pith.science/pith/A5WS3KUT3IPQZSB3UIOZMJDN7Y.json","graph_json":"https://pith.science/api/pith-number/A5WS3KUT3IPQZSB3UIOZMJDN7Y/graph.json","events_json":"https://pith.science/api/pith-number/A5WS3KUT3IPQZSB3UIOZMJDN7Y/events.json","paper":"https://pith.science/paper/A5WS3KUT"},"agent_actions":{"view_html":"https://pith.science/pith/A5WS3KUT3IPQZSB3UIOZMJDN7Y","download_json":"https://pith.science/pith/A5WS3KUT3IPQZSB3UIOZMJDN7Y.json","view_paper":"https://pith.science/paper/A5WS3KUT","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1009.4604&json=true","fetch_graph":"https://pith.science/api/pith-number/A5WS3KUT3IPQZSB3UIOZMJDN7Y/graph.json","fetch_events":"https://pith.science/api/pith-number/A5WS3KUT3IPQZSB3UIOZMJDN7Y/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/A5WS3KUT3IPQZSB3UIOZMJDN7Y/action/timestamp_anchor","attest_storage":"https://pith.science/pith/A5WS3KUT3IPQZSB3UIOZMJDN7Y/action/storage_attestation","attest_author":"https://pith.science/pith/A5WS3KUT3IPQZSB3UIOZMJDN7Y/action/author_attestation","sign_citation":"https://pith.science/pith/A5WS3KUT3IPQZSB3UIOZMJDN7Y/action/citation_signature","submit_replication":"https://pith.science/pith/A5WS3KUT3IPQZSB3UIOZMJDN7Y/action/replication_record"}},"created_at":"2026-05-18T04:39:50.052253+00:00","updated_at":"2026-05-18T04:39:50.052253+00:00"}