{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:JE3EEBMEJTX2OTH4RM2R7L7KW2","short_pith_number":"pith:JE3EEBME","schema_version":"1.0","canonical_sha256":"49364205844cefa74cfc8b351fafeab6be81532e178281d2b2938ea88d5972e7","source":{"kind":"arxiv","id":"1405.2101","version":1},"attestation_state":"computed","paper":{"title":"Sher 25: pulsating but apparently alone","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Christopher J. Evans, Hugues Sana, Nathan Smith, Norbert Langer, Sergio Sim\\'on-D\\'iaz, Stephen J. Smartt, William D. Taylor","submitted_at":"2014-05-08T21:15:05Z","abstract_excerpt":"The blue supergiant Sher25 is surrounded by an asymmetric, hourglass-shaped circumstellar nebula, which shows similarities to the triple-ring structure seen around SN1987A. From optical spectroscopy over six consecutive nights, we detect periodic radial velocity variations in the stellar spectrum of Sher25 with a peak-to-peak amplitude of ~12 km/s on a timescale of about 6 days, confirming the tentative detec-tion of similar variations by Hendry et al. From consideration of the amplitude and timescale of the signal, coupled with observed line profile variations, we propose that the physical or"},"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":"1405.2101","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-05-08T21:15:05Z","cross_cats_sorted":[],"title_canon_sha256":"d61ee61a72e1eb61e9371a6db3d70b5977851e46fa7d571d34904e18a31aae73","abstract_canon_sha256":"28ea8f266cb830e22097bf889cd5779946143c7a61cf05172ba3e67456d76180"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:43:15.915094Z","signature_b64":"eXHo7daR1hzwmL9uE1e1uQwOnQRicegoL6jzRws4NcrGKc8LoKbE2loqhFl1mKaCfReinrozjdx119QMNOt9Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"49364205844cefa74cfc8b351fafeab6be81532e178281d2b2938ea88d5972e7","last_reissued_at":"2026-05-18T01:43:15.914648Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:43:15.914648Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Sher 25: pulsating but apparently alone","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Christopher J. Evans, Hugues Sana, Nathan Smith, Norbert Langer, Sergio Sim\\'on-D\\'iaz, Stephen J. Smartt, William D. Taylor","submitted_at":"2014-05-08T21:15:05Z","abstract_excerpt":"The blue supergiant Sher25 is surrounded by an asymmetric, hourglass-shaped circumstellar nebula, which shows similarities to the triple-ring structure seen around SN1987A. From optical spectroscopy over six consecutive nights, we detect periodic radial velocity variations in the stellar spectrum of Sher25 with a peak-to-peak amplitude of ~12 km/s on a timescale of about 6 days, confirming the tentative detec-tion of similar variations by Hendry et al. From consideration of the amplitude and timescale of the signal, coupled with observed line profile variations, we propose that the physical or"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1405.2101","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":"1405.2101","created_at":"2026-05-18T01:43:15.914709+00:00"},{"alias_kind":"arxiv_version","alias_value":"1405.2101v1","created_at":"2026-05-18T01:43:15.914709+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1405.2101","created_at":"2026-05-18T01:43:15.914709+00:00"},{"alias_kind":"pith_short_12","alias_value":"JE3EEBMEJTX2","created_at":"2026-05-18T12:28:33.132498+00:00"},{"alias_kind":"pith_short_16","alias_value":"JE3EEBMEJTX2OTH4","created_at":"2026-05-18T12:28:33.132498+00:00"},{"alias_kind":"pith_short_8","alias_value":"JE3EEBME","created_at":"2026-05-18T12:28:33.132498+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/JE3EEBMEJTX2OTH4RM2R7L7KW2","json":"https://pith.science/pith/JE3EEBMEJTX2OTH4RM2R7L7KW2.json","graph_json":"https://pith.science/api/pith-number/JE3EEBMEJTX2OTH4RM2R7L7KW2/graph.json","events_json":"https://pith.science/api/pith-number/JE3EEBMEJTX2OTH4RM2R7L7KW2/events.json","paper":"https://pith.science/paper/JE3EEBME"},"agent_actions":{"view_html":"https://pith.science/pith/JE3EEBMEJTX2OTH4RM2R7L7KW2","download_json":"https://pith.science/pith/JE3EEBMEJTX2OTH4RM2R7L7KW2.json","view_paper":"https://pith.science/paper/JE3EEBME","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1405.2101&json=true","fetch_graph":"https://pith.science/api/pith-number/JE3EEBMEJTX2OTH4RM2R7L7KW2/graph.json","fetch_events":"https://pith.science/api/pith-number/JE3EEBMEJTX2OTH4RM2R7L7KW2/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/JE3EEBMEJTX2OTH4RM2R7L7KW2/action/timestamp_anchor","attest_storage":"https://pith.science/pith/JE3EEBMEJTX2OTH4RM2R7L7KW2/action/storage_attestation","attest_author":"https://pith.science/pith/JE3EEBMEJTX2OTH4RM2R7L7KW2/action/author_attestation","sign_citation":"https://pith.science/pith/JE3EEBMEJTX2OTH4RM2R7L7KW2/action/citation_signature","submit_replication":"https://pith.science/pith/JE3EEBMEJTX2OTH4RM2R7L7KW2/action/replication_record"}},"created_at":"2026-05-18T01:43:15.914709+00:00","updated_at":"2026-05-18T01:43:15.914709+00:00"}