{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:DM266MT2FD6AFB42H3BX3MSXZL","short_pith_number":"pith:DM266MT2","schema_version":"1.0","canonical_sha256":"1b35ef327a28fc02879a3ec37db257caef19639d75ce1c729c70cd6540bfc6b2","source":{"kind":"arxiv","id":"1801.01943","version":1},"attestation_state":"computed","paper":{"title":"Models of bright nickel-free supernovae from stripped massive stars with circumstellar shells","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Daniel Kasen, Io Kleiser, Paul Duffell","submitted_at":"2018-01-05T23:23:09Z","abstract_excerpt":"The nature of an emerging class of rapidly fading supernovae (RFSNe)--characterized by their short-lived light curve duration, but varying widely in peak brightness--remains puzzling. Whether the RFSNe arise from low-mass thermonuclear eruptions on white dwarfs or from the core collapse of massive stars is still a matter of dispute. We explore the possibility that the explosion of hydrogen-free massive stars could produce bright but rapidly fading transients if the effective pre-supernova radii are large and if little or no radioactive nickel is ejected. The source of radiation is then purely "},"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":"1801.01943","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-01-05T23:23:09Z","cross_cats_sorted":[],"title_canon_sha256":"0c775501ba4127fa1c7d6a56c52a7f04ec3cf4bb7bf0ad77013e22abf5127492","abstract_canon_sha256":"b2ade1d1005cc734425a2c61bd180fa60aadb729490f0f7451395e229e6eb74d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:22:56.832142Z","signature_b64":"ZhKK4hcrlua+Bgc7nMfNpPJ432vqClT1wWKU2IPHj0CTi1Zg8jXelWVZYYU9Kh5R1nDEwbtb1PPlfLG/zucJCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1b35ef327a28fc02879a3ec37db257caef19639d75ce1c729c70cd6540bfc6b2","last_reissued_at":"2026-05-18T00:22:56.831565Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:22:56.831565Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Models of bright nickel-free supernovae from stripped massive stars with circumstellar shells","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Daniel Kasen, Io Kleiser, Paul Duffell","submitted_at":"2018-01-05T23:23:09Z","abstract_excerpt":"The nature of an emerging class of rapidly fading supernovae (RFSNe)--characterized by their short-lived light curve duration, but varying widely in peak brightness--remains puzzling. Whether the RFSNe arise from low-mass thermonuclear eruptions on white dwarfs or from the core collapse of massive stars is still a matter of dispute. We explore the possibility that the explosion of hydrogen-free massive stars could produce bright but rapidly fading transients if the effective pre-supernova radii are large and if little or no radioactive nickel is ejected. The source of radiation is then purely "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.01943","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":"1801.01943","created_at":"2026-05-18T00:22:56.831682+00:00"},{"alias_kind":"arxiv_version","alias_value":"1801.01943v1","created_at":"2026-05-18T00:22:56.831682+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.01943","created_at":"2026-05-18T00:22:56.831682+00:00"},{"alias_kind":"pith_short_12","alias_value":"DM266MT2FD6A","created_at":"2026-05-18T12:32:19.392346+00:00"},{"alias_kind":"pith_short_16","alias_value":"DM266MT2FD6AFB42","created_at":"2026-05-18T12:32:19.392346+00:00"},{"alias_kind":"pith_short_8","alias_value":"DM266MT2","created_at":"2026-05-18T12:32:19.392346+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/DM266MT2FD6AFB42H3BX3MSXZL","json":"https://pith.science/pith/DM266MT2FD6AFB42H3BX3MSXZL.json","graph_json":"https://pith.science/api/pith-number/DM266MT2FD6AFB42H3BX3MSXZL/graph.json","events_json":"https://pith.science/api/pith-number/DM266MT2FD6AFB42H3BX3MSXZL/events.json","paper":"https://pith.science/paper/DM266MT2"},"agent_actions":{"view_html":"https://pith.science/pith/DM266MT2FD6AFB42H3BX3MSXZL","download_json":"https://pith.science/pith/DM266MT2FD6AFB42H3BX3MSXZL.json","view_paper":"https://pith.science/paper/DM266MT2","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1801.01943&json=true","fetch_graph":"https://pith.science/api/pith-number/DM266MT2FD6AFB42H3BX3MSXZL/graph.json","fetch_events":"https://pith.science/api/pith-number/DM266MT2FD6AFB42H3BX3MSXZL/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/DM266MT2FD6AFB42H3BX3MSXZL/action/timestamp_anchor","attest_storage":"https://pith.science/pith/DM266MT2FD6AFB42H3BX3MSXZL/action/storage_attestation","attest_author":"https://pith.science/pith/DM266MT2FD6AFB42H3BX3MSXZL/action/author_attestation","sign_citation":"https://pith.science/pith/DM266MT2FD6AFB42H3BX3MSXZL/action/citation_signature","submit_replication":"https://pith.science/pith/DM266MT2FD6AFB42H3BX3MSXZL/action/replication_record"}},"created_at":"2026-05-18T00:22:56.831682+00:00","updated_at":"2026-05-18T00:22:56.831682+00:00"}