{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:OZJVCR6MYE2ES2PXOTXDCBEGNA","short_pith_number":"pith:OZJVCR6M","schema_version":"1.0","canonical_sha256":"76535147ccc1344969f774ee310486683365874c2de945b1712f6c0a726ca44f","source":{"kind":"arxiv","id":"1711.00876","version":2},"attestation_state":"computed","paper":{"title":"No surviving companion in Kepler's supernova","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Francesco Damiani, Javier Mendez, John Pritchard, Jonay I. Gonzalez Hernandez, Lluis Galbany, Luigi R. Bedin, Pilar Ruiz-Lapuente, Ramon Canal","submitted_at":"2017-11-02T18:28:24Z","abstract_excerpt":"We have surveyed Kepler's supernova remnant in search of the companion star of the explosion. We have gone as deep as 2.6 solar luminosities in the stars within 20% of the radius of the remnant. We use FLAMES at the VLT-UT2 telescope to obtain high resolution spectra of the stellar candidates selected from HST images. The resulting set of stellar parameters suggests that these stars come from a rather ordinary mixture of field stars (mostly giants). A few of the stars seem to have low [Fe/H] (< -1) and they are consistent with being metal-poor giants. The radial velocities and rotational veloc"},"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":"1711.00876","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-11-02T18:28:24Z","cross_cats_sorted":[],"title_canon_sha256":"4f771cd8dafa04ef55ab697967bd80751f347bdd12c341adaadcbcee7b272984","abstract_canon_sha256":"023c1471936ef38db1ddb7fdcff89973c18af29eeff87885cc9d8c847f2563dc"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:08:44.059924Z","signature_b64":"N9kQ98tEKfwuZUYdEGmM1LYBk8nzDzrXt2zy3JH0UfC0y0NDnQiHUsvPpPPKMnERa0rbVmVZHECaTMOk1Xy0Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"76535147ccc1344969f774ee310486683365874c2de945b1712f6c0a726ca44f","last_reissued_at":"2026-05-18T00:08:44.059227Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:08:44.059227Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"No surviving companion in Kepler's supernova","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Francesco Damiani, Javier Mendez, John Pritchard, Jonay I. Gonzalez Hernandez, Lluis Galbany, Luigi R. Bedin, Pilar Ruiz-Lapuente, Ramon Canal","submitted_at":"2017-11-02T18:28:24Z","abstract_excerpt":"We have surveyed Kepler's supernova remnant in search of the companion star of the explosion. We have gone as deep as 2.6 solar luminosities in the stars within 20% of the radius of the remnant. We use FLAMES at the VLT-UT2 telescope to obtain high resolution spectra of the stellar candidates selected from HST images. The resulting set of stellar parameters suggests that these stars come from a rather ordinary mixture of field stars (mostly giants). A few of the stars seem to have low [Fe/H] (< -1) and they are consistent with being metal-poor giants. The radial velocities and rotational veloc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.00876","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":"1711.00876","created_at":"2026-05-18T00:08:44.059297+00:00"},{"alias_kind":"arxiv_version","alias_value":"1711.00876v2","created_at":"2026-05-18T00:08:44.059297+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1711.00876","created_at":"2026-05-18T00:08:44.059297+00:00"},{"alias_kind":"pith_short_12","alias_value":"OZJVCR6MYE2E","created_at":"2026-05-18T12:31:37.085036+00:00"},{"alias_kind":"pith_short_16","alias_value":"OZJVCR6MYE2ES2PX","created_at":"2026-05-18T12:31:37.085036+00:00"},{"alias_kind":"pith_short_8","alias_value":"OZJVCR6M","created_at":"2026-05-18T12:31:37.085036+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/OZJVCR6MYE2ES2PXOTXDCBEGNA","json":"https://pith.science/pith/OZJVCR6MYE2ES2PXOTXDCBEGNA.json","graph_json":"https://pith.science/api/pith-number/OZJVCR6MYE2ES2PXOTXDCBEGNA/graph.json","events_json":"https://pith.science/api/pith-number/OZJVCR6MYE2ES2PXOTXDCBEGNA/events.json","paper":"https://pith.science/paper/OZJVCR6M"},"agent_actions":{"view_html":"https://pith.science/pith/OZJVCR6MYE2ES2PXOTXDCBEGNA","download_json":"https://pith.science/pith/OZJVCR6MYE2ES2PXOTXDCBEGNA.json","view_paper":"https://pith.science/paper/OZJVCR6M","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1711.00876&json=true","fetch_graph":"https://pith.science/api/pith-number/OZJVCR6MYE2ES2PXOTXDCBEGNA/graph.json","fetch_events":"https://pith.science/api/pith-number/OZJVCR6MYE2ES2PXOTXDCBEGNA/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/OZJVCR6MYE2ES2PXOTXDCBEGNA/action/timestamp_anchor","attest_storage":"https://pith.science/pith/OZJVCR6MYE2ES2PXOTXDCBEGNA/action/storage_attestation","attest_author":"https://pith.science/pith/OZJVCR6MYE2ES2PXOTXDCBEGNA/action/author_attestation","sign_citation":"https://pith.science/pith/OZJVCR6MYE2ES2PXOTXDCBEGNA/action/citation_signature","submit_replication":"https://pith.science/pith/OZJVCR6MYE2ES2PXOTXDCBEGNA/action/replication_record"}},"created_at":"2026-05-18T00:08:44.059297+00:00","updated_at":"2026-05-18T00:08:44.059297+00:00"}