{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2020:FDI7VMO726XLQQLMLHPIO7BWSZ","short_pith_number":"pith:FDI7VMO7","schema_version":"1.0","canonical_sha256":"28d1fab1dfd7aeb8416c59de877c369641f68ea286321ba70657f76a8f518c6c","source":{"kind":"arxiv","id":"2011.11297","version":3},"attestation_state":"computed","paper":{"title":"Low luminosity Type II supernovae III. SN 2018hwm, a faint event with an unusually long plateau","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.SR","authors_text":"A. Pastorello, A. Reguitti, G. Pignata, H. Kuncarayakti, M. L. Pumo, N. Elias-Rosa, O. Rodriguez, P. A. Mazzali, S. Benetti, S. J. Prentice, S. Mattila, T. Reynolds","submitted_at":"2020-11-23T09:34:04Z","abstract_excerpt":"In this work, we present photometric and spectroscopic data of the low-luminosity Type IIP supernova (SN) 2018hwm. The object shows a faint ($M_r=-15$ mag) and very long ($\\sim$130 days) plateau, followed by a 2.7 mag drop in the $r$-band to the radioactive tail. The first spectrum shows a blue continuum with narrow Balmer lines, while during the plateau the spectra show numerous metal lines, all with strong and narrow P-Cygni profiles. The expansion velocities are low, in the 1000-1400 km s$^{-1}$ range. The nebular spectrum, dominated by H$\\alpha$ in emission, reveals weak emission from [O I"},"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":"2011.11297","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-11-23T09:34:04Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"0605d5e89cf384308a09146d427221c9cd272e6083ca512c8dda3e584cb62672","abstract_canon_sha256":"67a739b4dfdf2e84618c114f2b2fb296c14be546132d20e1c3f3112946676184"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:30:42.967923Z","signature_b64":"371Idu6m2+/koO2cqXHqtsKeDump0CFdA9Qoc0Gb00DQx9AqPHFjg3oWUm0FejnwGNKSBukYljaOW5IJRmXJBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"28d1fab1dfd7aeb8416c59de877c369641f68ea286321ba70657f76a8f518c6c","last_reissued_at":"2026-07-05T02:30:42.967452Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:30:42.967452Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Low luminosity Type II supernovae III. SN 2018hwm, a faint event with an unusually long plateau","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.SR","authors_text":"A. Pastorello, A. Reguitti, G. Pignata, H. Kuncarayakti, M. L. Pumo, N. Elias-Rosa, O. Rodriguez, P. A. Mazzali, S. Benetti, S. J. Prentice, S. Mattila, T. Reynolds","submitted_at":"2020-11-23T09:34:04Z","abstract_excerpt":"In this work, we present photometric and spectroscopic data of the low-luminosity Type IIP supernova (SN) 2018hwm. The object shows a faint ($M_r=-15$ mag) and very long ($\\sim$130 days) plateau, followed by a 2.7 mag drop in the $r$-band to the radioactive tail. The first spectrum shows a blue continuum with narrow Balmer lines, while during the plateau the spectra show numerous metal lines, all with strong and narrow P-Cygni profiles. The expansion velocities are low, in the 1000-1400 km s$^{-1}$ range. The nebular spectrum, dominated by H$\\alpha$ in emission, reveals weak emission from [O I"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2011.11297","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2011.11297/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2011.11297","created_at":"2026-07-05T02:30:42.967506+00:00"},{"alias_kind":"arxiv_version","alias_value":"2011.11297v3","created_at":"2026-07-05T02:30:42.967506+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2011.11297","created_at":"2026-07-05T02:30:42.967506+00:00"},{"alias_kind":"pith_short_12","alias_value":"FDI7VMO726XL","created_at":"2026-07-05T02:30:42.967506+00:00"},{"alias_kind":"pith_short_16","alias_value":"FDI7VMO726XLQQLM","created_at":"2026-07-05T02:30:42.967506+00:00"},{"alias_kind":"pith_short_8","alias_value":"FDI7VMO7","created_at":"2026-07-05T02:30:42.967506+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/FDI7VMO726XLQQLMLHPIO7BWSZ","json":"https://pith.science/pith/FDI7VMO726XLQQLMLHPIO7BWSZ.json","graph_json":"https://pith.science/api/pith-number/FDI7VMO726XLQQLMLHPIO7BWSZ/graph.json","events_json":"https://pith.science/api/pith-number/FDI7VMO726XLQQLMLHPIO7BWSZ/events.json","paper":"https://pith.science/paper/FDI7VMO7"},"agent_actions":{"view_html":"https://pith.science/pith/FDI7VMO726XLQQLMLHPIO7BWSZ","download_json":"https://pith.science/pith/FDI7VMO726XLQQLMLHPIO7BWSZ.json","view_paper":"https://pith.science/paper/FDI7VMO7","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2011.11297&json=true","fetch_graph":"https://pith.science/api/pith-number/FDI7VMO726XLQQLMLHPIO7BWSZ/graph.json","fetch_events":"https://pith.science/api/pith-number/FDI7VMO726XLQQLMLHPIO7BWSZ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/FDI7VMO726XLQQLMLHPIO7BWSZ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/FDI7VMO726XLQQLMLHPIO7BWSZ/action/storage_attestation","attest_author":"https://pith.science/pith/FDI7VMO726XLQQLMLHPIO7BWSZ/action/author_attestation","sign_citation":"https://pith.science/pith/FDI7VMO726XLQQLMLHPIO7BWSZ/action/citation_signature","submit_replication":"https://pith.science/pith/FDI7VMO726XLQQLMLHPIO7BWSZ/action/replication_record"}},"created_at":"2026-07-05T02:30:42.967506+00:00","updated_at":"2026-07-05T02:30:42.967506+00:00"}