{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:QR46KBKZL7DESMCG7B5JDA5ZPQ","short_pith_number":"pith:QR46KBKZ","schema_version":"1.0","canonical_sha256":"8479e505595fc6493046f87a9183b97c3ecc153a5185d3f7afab193daddb1173","source":{"kind":"arxiv","id":"1809.09009","version":1},"attestation_state":"computed","paper":{"title":"Plausible home stars of the interstellar object 'Oumuamua found in Gaia DR2","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"C.A.L. Bailer-Jones (MPIA Heidelberg), D. Farnocchia (JPL), K.J. Meech (Uni. Hawai'i), M. Micheli (ESA SSA-NEO Coordination Centre), M.W. Buie (Southwest Research Institute), O.R. Hainaut (ESO), R. Brasser (Tokyo Institute of Technology), S. Chakrabarti (Rochester Institute of Technology)","submitted_at":"2018-09-24T15:44:23Z","abstract_excerpt":"The first detected interstellar object 'Oumuamua that passed within 0.25au of the Sun on 2017 September 9 was presumably ejected from a stellar system. We use its newly determined non-Keplerian trajectory together with the reconstructed Galactic orbits of 7 million stars from Gaia DR2 to identify past close encounters. Such an \"encounter\" could reveal the home system from which 'Oumuamua was ejected. The closest encounter, at 0.60pc (0.53-0.67pc, 90% confidence interval), was with the M2.5 dwarf HIP 3757 at a relative velocity of 24.7km/s, 1Myr ago. A more distant encounter (1.6pc) but with a "},"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":"1809.09009","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-09-24T15:44:23Z","cross_cats_sorted":[],"title_canon_sha256":"fe665805eb5752f1f416f3d684a8252750636e2078163b7f5a030fbe18669e56","abstract_canon_sha256":"7133927e6117e536299bba814276020d6724f5e98df7057cb80e2235c58b9791"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:00:49.792452Z","signature_b64":"XnIx3u7tntZNNLwJDCeVb7KwbkHTT1ND0zk6/VIpVYthqUSQUBEL3oEXHc2gXuv3dm3jPpzcJ2y7QyeesuT5Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8479e505595fc6493046f87a9183b97c3ecc153a5185d3f7afab193daddb1173","last_reissued_at":"2026-05-18T00:00:49.791827Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:00:49.791827Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Plausible home stars of the interstellar object 'Oumuamua found in Gaia DR2","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"C.A.L. Bailer-Jones (MPIA Heidelberg), D. Farnocchia (JPL), K.J. Meech (Uni. Hawai'i), M. Micheli (ESA SSA-NEO Coordination Centre), M.W. Buie (Southwest Research Institute), O.R. Hainaut (ESO), R. Brasser (Tokyo Institute of Technology), S. Chakrabarti (Rochester Institute of Technology)","submitted_at":"2018-09-24T15:44:23Z","abstract_excerpt":"The first detected interstellar object 'Oumuamua that passed within 0.25au of the Sun on 2017 September 9 was presumably ejected from a stellar system. We use its newly determined non-Keplerian trajectory together with the reconstructed Galactic orbits of 7 million stars from Gaia DR2 to identify past close encounters. Such an \"encounter\" could reveal the home system from which 'Oumuamua was ejected. The closest encounter, at 0.60pc (0.53-0.67pc, 90% confidence interval), was with the M2.5 dwarf HIP 3757 at a relative velocity of 24.7km/s, 1Myr ago. A more distant encounter (1.6pc) but with a "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.09009","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":"1809.09009","created_at":"2026-05-18T00:00:49.791940+00:00"},{"alias_kind":"arxiv_version","alias_value":"1809.09009v1","created_at":"2026-05-18T00:00:49.791940+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.09009","created_at":"2026-05-18T00:00:49.791940+00:00"},{"alias_kind":"pith_short_12","alias_value":"QR46KBKZL7DE","created_at":"2026-05-18T12:32:46.962924+00:00"},{"alias_kind":"pith_short_16","alias_value":"QR46KBKZL7DESMCG","created_at":"2026-05-18T12:32:46.962924+00:00"},{"alias_kind":"pith_short_8","alias_value":"QR46KBKZ","created_at":"2026-05-18T12:32:46.962924+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"1907.01910","citing_title":"The Natural History of 'Oumuamua","ref_index":20,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/QR46KBKZL7DESMCG7B5JDA5ZPQ","json":"https://pith.science/pith/QR46KBKZL7DESMCG7B5JDA5ZPQ.json","graph_json":"https://pith.science/api/pith-number/QR46KBKZL7DESMCG7B5JDA5ZPQ/graph.json","events_json":"https://pith.science/api/pith-number/QR46KBKZL7DESMCG7B5JDA5ZPQ/events.json","paper":"https://pith.science/paper/QR46KBKZ"},"agent_actions":{"view_html":"https://pith.science/pith/QR46KBKZL7DESMCG7B5JDA5ZPQ","download_json":"https://pith.science/pith/QR46KBKZL7DESMCG7B5JDA5ZPQ.json","view_paper":"https://pith.science/paper/QR46KBKZ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1809.09009&json=true","fetch_graph":"https://pith.science/api/pith-number/QR46KBKZL7DESMCG7B5JDA5ZPQ/graph.json","fetch_events":"https://pith.science/api/pith-number/QR46KBKZL7DESMCG7B5JDA5ZPQ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/QR46KBKZL7DESMCG7B5JDA5ZPQ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/QR46KBKZL7DESMCG7B5JDA5ZPQ/action/storage_attestation","attest_author":"https://pith.science/pith/QR46KBKZL7DESMCG7B5JDA5ZPQ/action/author_attestation","sign_citation":"https://pith.science/pith/QR46KBKZL7DESMCG7B5JDA5ZPQ/action/citation_signature","submit_replication":"https://pith.science/pith/QR46KBKZL7DESMCG7B5JDA5ZPQ/action/replication_record"}},"created_at":"2026-05-18T00:00:49.791940+00:00","updated_at":"2026-05-18T00:00:49.791940+00:00"}