{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:POSNBPIBGTMLYJGH4LZE5JIKOT","short_pith_number":"pith:POSNBPIB","schema_version":"1.0","canonical_sha256":"7ba4d0bd0134d8bc24c7e2f24ea50a74d65fca9a76cf03fe98e4d0bd81ae6304","source":{"kind":"arxiv","id":"1304.6755","version":1},"attestation_state":"computed","paper":{"title":"Planetary-mass companions to the K-giants BD+15 2940 and HD 233604","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"A. Niedzielski, A. Wolszczan, G. Maciejewski, G. Nowak, M. Adam\\'ow","submitted_at":"2013-04-24T21:25:57Z","abstract_excerpt":"We report the discovery of planetary-mass companions to two red giants by the ongoing Penn State - Torun Planet Search (PTPS) conducted with the 9.2-m Hobby-Eberly Telescope. The 1.1 Ms K0-giant, BD+15 2940, has a 1.1 Mj minimum mass companion orbiting the star at a 137.5-day period in a 0.54 AU orbit what makes it the closest - in planet around a giant and possible subject of engulfment as the consequence of stellar evolution. HD 233604, a 1.5 Ms K5-giant, is orbited by a 6.6 Mj minimum mass planet which has a period of 192 days and a semi-major axis of only 0.75 AU making it one of the least"},"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":"1304.6755","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-04-24T21:25:57Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"48c90980b0002382a253b7ccf9e0398441956bd4d8578c0d6fad398d7e808dd4","abstract_canon_sha256":"0b5f133b153c5d145920d5864167066f9c3e9f4dd0a6b9bf2c5da93dda2412fd"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:50:22.181839Z","signature_b64":"T6gQozy4IwsTlmd6F54uRxmLp7vwbKEvljpvazulZ0NZZiOrQ4DAS4z0XqXda19lZKNw+w1mDp2jB8ARmhbHBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7ba4d0bd0134d8bc24c7e2f24ea50a74d65fca9a76cf03fe98e4d0bd81ae6304","last_reissued_at":"2026-05-18T01:50:22.181087Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:50:22.181087Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Planetary-mass companions to the K-giants BD+15 2940 and HD 233604","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"A. Niedzielski, A. Wolszczan, G. Maciejewski, G. Nowak, M. Adam\\'ow","submitted_at":"2013-04-24T21:25:57Z","abstract_excerpt":"We report the discovery of planetary-mass companions to two red giants by the ongoing Penn State - Torun Planet Search (PTPS) conducted with the 9.2-m Hobby-Eberly Telescope. The 1.1 Ms K0-giant, BD+15 2940, has a 1.1 Mj minimum mass companion orbiting the star at a 137.5-day period in a 0.54 AU orbit what makes it the closest - in planet around a giant and possible subject of engulfment as the consequence of stellar evolution. HD 233604, a 1.5 Ms K5-giant, is orbited by a 6.6 Mj minimum mass planet which has a period of 192 days and a semi-major axis of only 0.75 AU making it one of the least"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.6755","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":"1304.6755","created_at":"2026-05-18T01:50:22.181216+00:00"},{"alias_kind":"arxiv_version","alias_value":"1304.6755v1","created_at":"2026-05-18T01:50:22.181216+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.6755","created_at":"2026-05-18T01:50:22.181216+00:00"},{"alias_kind":"pith_short_12","alias_value":"POSNBPIBGTML","created_at":"2026-05-18T12:27:54.935989+00:00"},{"alias_kind":"pith_short_16","alias_value":"POSNBPIBGTMLYJGH","created_at":"2026-05-18T12:27:54.935989+00:00"},{"alias_kind":"pith_short_8","alias_value":"POSNBPIB","created_at":"2026-05-18T12:27:54.935989+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/POSNBPIBGTMLYJGH4LZE5JIKOT","json":"https://pith.science/pith/POSNBPIBGTMLYJGH4LZE5JIKOT.json","graph_json":"https://pith.science/api/pith-number/POSNBPIBGTMLYJGH4LZE5JIKOT/graph.json","events_json":"https://pith.science/api/pith-number/POSNBPIBGTMLYJGH4LZE5JIKOT/events.json","paper":"https://pith.science/paper/POSNBPIB"},"agent_actions":{"view_html":"https://pith.science/pith/POSNBPIBGTMLYJGH4LZE5JIKOT","download_json":"https://pith.science/pith/POSNBPIBGTMLYJGH4LZE5JIKOT.json","view_paper":"https://pith.science/paper/POSNBPIB","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1304.6755&json=true","fetch_graph":"https://pith.science/api/pith-number/POSNBPIBGTMLYJGH4LZE5JIKOT/graph.json","fetch_events":"https://pith.science/api/pith-number/POSNBPIBGTMLYJGH4LZE5JIKOT/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/POSNBPIBGTMLYJGH4LZE5JIKOT/action/timestamp_anchor","attest_storage":"https://pith.science/pith/POSNBPIBGTMLYJGH4LZE5JIKOT/action/storage_attestation","attest_author":"https://pith.science/pith/POSNBPIBGTMLYJGH4LZE5JIKOT/action/author_attestation","sign_citation":"https://pith.science/pith/POSNBPIBGTMLYJGH4LZE5JIKOT/action/citation_signature","submit_replication":"https://pith.science/pith/POSNBPIBGTMLYJGH4LZE5JIKOT/action/replication_record"}},"created_at":"2026-05-18T01:50:22.181216+00:00","updated_at":"2026-05-18T01:50:22.181216+00:00"}