{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:3ZQHU2YBHDQD72DLKYSDSS64LD","short_pith_number":"pith:3ZQHU2YB","schema_version":"1.0","canonical_sha256":"de607a6b0138e03fe86b5624394bdc58d76b6982da50843bd854074d1e9859ea","source":{"kind":"arxiv","id":"1506.02845","version":1},"attestation_state":"computed","paper":{"title":"Optical observations of a SN 2002cx-like peculiar supernova SN 2013en in UGC 11369","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.SR","authors_text":"Chuanjun Wang, Fabrizio Ciabattari, Jujia Zhang, Liang Chang, Lina Tomasella, Tianmeng Zhang, Xiaofeng Wang, Xulin Zhao, Yuxin Xin, Zheng-Wei Liu","submitted_at":"2015-06-09T10:07:19Z","abstract_excerpt":"We present optical observations of a SN 2002cx-like supernova SN 2013en in UGC 11369, spanning from a phase near maximum light (t= +1 d) to t= +60 d with respect to the R-band maximum. Adopting a distance modulus of mu=34.11 +/- 0.15 mag and a total extinction (host galaxy+Milky Way) of $A_V \\sim1.5$ mag, we found that SN 2013en peaked at $M(R)\\sim -18.6$ mag, which is underluminous compared to the normal SNe Ia. The near maximum spectra show lines of Si II, Fe II, Fe III, Cr II, Ca II and other intermediate-mass and iron group elements which all have lower expansion velocities (i.e., ~ 6000 k"},"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":"1506.02845","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-06-09T10:07:19Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"9a8eb0126e7e4b68edebb1c52fdfc4760bf4fd2fd159e5d149a702987568bf7f","abstract_canon_sha256":"b568d6966bce846746b50b85e1e2d49b19bf0856341259532a873cfafd4cb6fa"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:37:07.236768Z","signature_b64":"+IWE60lp4Nw6YhUDtZq2ZCe9NGLKqevK6EM2C5aLCJlcNOv60Bp7lD1+xDEOVmb0sw/BmPHZ4WTgWa4QFf+QCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"de607a6b0138e03fe86b5624394bdc58d76b6982da50843bd854074d1e9859ea","last_reissued_at":"2026-05-18T01:37:07.236096Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:37:07.236096Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Optical observations of a SN 2002cx-like peculiar supernova SN 2013en in UGC 11369","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.SR","authors_text":"Chuanjun Wang, Fabrizio Ciabattari, Jujia Zhang, Liang Chang, Lina Tomasella, Tianmeng Zhang, Xiaofeng Wang, Xulin Zhao, Yuxin Xin, Zheng-Wei Liu","submitted_at":"2015-06-09T10:07:19Z","abstract_excerpt":"We present optical observations of a SN 2002cx-like supernova SN 2013en in UGC 11369, spanning from a phase near maximum light (t= +1 d) to t= +60 d with respect to the R-band maximum. Adopting a distance modulus of mu=34.11 +/- 0.15 mag and a total extinction (host galaxy+Milky Way) of $A_V \\sim1.5$ mag, we found that SN 2013en peaked at $M(R)\\sim -18.6$ mag, which is underluminous compared to the normal SNe Ia. The near maximum spectra show lines of Si II, Fe II, Fe III, Cr II, Ca II and other intermediate-mass and iron group elements which all have lower expansion velocities (i.e., ~ 6000 k"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.02845","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":"1506.02845","created_at":"2026-05-18T01:37:07.236199+00:00"},{"alias_kind":"arxiv_version","alias_value":"1506.02845v1","created_at":"2026-05-18T01:37:07.236199+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.02845","created_at":"2026-05-18T01:37:07.236199+00:00"},{"alias_kind":"pith_short_12","alias_value":"3ZQHU2YBHDQD","created_at":"2026-05-18T12:29:02.477457+00:00"},{"alias_kind":"pith_short_16","alias_value":"3ZQHU2YBHDQD72DL","created_at":"2026-05-18T12:29:02.477457+00:00"},{"alias_kind":"pith_short_8","alias_value":"3ZQHU2YB","created_at":"2026-05-18T12:29:02.477457+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/3ZQHU2YBHDQD72DLKYSDSS64LD","json":"https://pith.science/pith/3ZQHU2YBHDQD72DLKYSDSS64LD.json","graph_json":"https://pith.science/api/pith-number/3ZQHU2YBHDQD72DLKYSDSS64LD/graph.json","events_json":"https://pith.science/api/pith-number/3ZQHU2YBHDQD72DLKYSDSS64LD/events.json","paper":"https://pith.science/paper/3ZQHU2YB"},"agent_actions":{"view_html":"https://pith.science/pith/3ZQHU2YBHDQD72DLKYSDSS64LD","download_json":"https://pith.science/pith/3ZQHU2YBHDQD72DLKYSDSS64LD.json","view_paper":"https://pith.science/paper/3ZQHU2YB","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1506.02845&json=true","fetch_graph":"https://pith.science/api/pith-number/3ZQHU2YBHDQD72DLKYSDSS64LD/graph.json","fetch_events":"https://pith.science/api/pith-number/3ZQHU2YBHDQD72DLKYSDSS64LD/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/3ZQHU2YBHDQD72DLKYSDSS64LD/action/timestamp_anchor","attest_storage":"https://pith.science/pith/3ZQHU2YBHDQD72DLKYSDSS64LD/action/storage_attestation","attest_author":"https://pith.science/pith/3ZQHU2YBHDQD72DLKYSDSS64LD/action/author_attestation","sign_citation":"https://pith.science/pith/3ZQHU2YBHDQD72DLKYSDSS64LD/action/citation_signature","submit_replication":"https://pith.science/pith/3ZQHU2YBHDQD72DLKYSDSS64LD/action/replication_record"}},"created_at":"2026-05-18T01:37:07.236199+00:00","updated_at":"2026-05-18T01:37:07.236199+00:00"}