{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2024:JAP7W2WF27FSFRVQQAEAP2SVAU","short_pith_number":"pith:JAP7W2WF","schema_version":"1.0","canonical_sha256":"481ffb6ac5d7cb22c6b0800807ea5505275fba8db011e416f016567bcb40a0ec","source":{"kind":"arxiv","id":"2408.12393","version":1},"attestation_state":"computed","paper":{"title":"Massive stars exploding in a He-rich circumstellar medium $-$ X. Flash spectral features in the Type Ibn SN 2019cj and observations of SN 2018jmt","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.HE","authors_text":"A. Aryan, A. Gal-Yam, A. Gangopadhyay, A. Melandri, A. Pastorello, A. Rau, A. Reguitti, B. Wang, B. Warwick, C. Inserra, C. McCully, D. Andrew Howell, D. Buckley, D.-D Shi, D. Hiramatsu, D.R. Young, E. Cappellaro, E. Concepcion, F.E. Olivares, F. Ragosta, G. Pignata, G. Terreran, G. Valerin, H. Lin, J.-J. Zhang, J. Pineda-Garc'ia, J. Sollerman, K. Maeda, L. Galbany, L. Tartaglia, M. Bronikowski, M. Gromadzki, M.-K. Hu, M. Nicholl, M. Pursiainen, M. Ramirez, N. Elias-Rosa, Q.-L. Fang, Q. Wang, R. Carini, R. Cartier, R. Roy, S. Benetti, S.-Q. Wang, T. Petrushevska, T.-W. Chen, W.-P. Gan, X.-F. Wang, X.-J. Zhu, Y.-Z. Cai, Z.-Y. Wang","submitted_at":"2024-08-22T13:38:50Z","abstract_excerpt":"We present optical and near-infrared observations of two Type Ibn supernovae (SNe), SN 2018jmt and SN 2019cj. Their light curves have rise times of about 10 days, reaching an absolute peak magnitude of $M_g$(SN 2018jmt) = $-$19.07 $\\pm$ 0.37 and $M_V$(SN 2019cj) = $-$18.94 $\\pm$ 0.19 mag, respectively. The early-time spectra of SN 2018jmt are dominated by a blue continuum, accompanied by narrow (600$-$1000 km~s$^{-1}$) He I lines with P-Cygni profile. At later epochs, the spectra become more similar to those of the prototypical SN Ibn 2006jc. At early phases, the spectra of SN 2019cj show flas"},"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":"2408.12393","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-08-22T13:38:50Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"9cff98a8d4b518ce0fb9d18eeaa54c90ea55de126e520568998b7bdf3761094d","abstract_canon_sha256":"56385ea041da5946ce81403b5ee6c6bf966b9e17c71b07be4a87f5f20fa742db"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:34:17.997270Z","signature_b64":"eKXbldSyjX0WPZ3vQwSbrT47Ju7Nv0+uzeXzDfjcYrv2N4ZSVYBP2OSYFyb8vayuV2B/ixihN2u2TQQxcRaUAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"481ffb6ac5d7cb22c6b0800807ea5505275fba8db011e416f016567bcb40a0ec","last_reissued_at":"2026-07-05T09:34:17.996789Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:34:17.996789Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Massive stars exploding in a He-rich circumstellar medium $-$ X. Flash spectral features in the Type Ibn SN 2019cj and observations of SN 2018jmt","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.HE","authors_text":"A. Aryan, A. Gal-Yam, A. Gangopadhyay, A. Melandri, A. Pastorello, A. Rau, A. Reguitti, B. Wang, B. Warwick, C. Inserra, C. McCully, D. Andrew Howell, D. Buckley, D.-D Shi, D. Hiramatsu, D.R. Young, E. Cappellaro, E. Concepcion, F.E. Olivares, F. Ragosta, G. Pignata, G. Terreran, G. Valerin, H. Lin, J.-J. Zhang, J. Pineda-Garc'ia, J. Sollerman, K. Maeda, L. Galbany, L. Tartaglia, M. Bronikowski, M. Gromadzki, M.-K. Hu, M. Nicholl, M. Pursiainen, M. Ramirez, N. Elias-Rosa, Q.-L. Fang, Q. Wang, R. Carini, R. Cartier, R. Roy, S. Benetti, S.-Q. Wang, T. Petrushevska, T.-W. Chen, W.-P. Gan, X.-F. Wang, X.-J. Zhu, Y.-Z. Cai, Z.-Y. Wang","submitted_at":"2024-08-22T13:38:50Z","abstract_excerpt":"We present optical and near-infrared observations of two Type Ibn supernovae (SNe), SN 2018jmt and SN 2019cj. Their light curves have rise times of about 10 days, reaching an absolute peak magnitude of $M_g$(SN 2018jmt) = $-$19.07 $\\pm$ 0.37 and $M_V$(SN 2019cj) = $-$18.94 $\\pm$ 0.19 mag, respectively. The early-time spectra of SN 2018jmt are dominated by a blue continuum, accompanied by narrow (600$-$1000 km~s$^{-1}$) He I lines with P-Cygni profile. At later epochs, the spectra become more similar to those of the prototypical SN Ibn 2006jc. At early phases, the spectra of SN 2019cj show flas"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2408.12393","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2408.12393/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":"2408.12393","created_at":"2026-07-05T09:34:17.996847+00:00"},{"alias_kind":"arxiv_version","alias_value":"2408.12393v1","created_at":"2026-07-05T09:34:17.996847+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2408.12393","created_at":"2026-07-05T09:34:17.996847+00:00"},{"alias_kind":"pith_short_12","alias_value":"JAP7W2WF27FS","created_at":"2026-07-05T09:34:17.996847+00:00"},{"alias_kind":"pith_short_16","alias_value":"JAP7W2WF27FSFRVQ","created_at":"2026-07-05T09:34:17.996847+00:00"},{"alias_kind":"pith_short_8","alias_value":"JAP7W2WF","created_at":"2026-07-05T09:34:17.996847+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/JAP7W2WF27FSFRVQQAEAP2SVAU","json":"https://pith.science/pith/JAP7W2WF27FSFRVQQAEAP2SVAU.json","graph_json":"https://pith.science/api/pith-number/JAP7W2WF27FSFRVQQAEAP2SVAU/graph.json","events_json":"https://pith.science/api/pith-number/JAP7W2WF27FSFRVQQAEAP2SVAU/events.json","paper":"https://pith.science/paper/JAP7W2WF"},"agent_actions":{"view_html":"https://pith.science/pith/JAP7W2WF27FSFRVQQAEAP2SVAU","download_json":"https://pith.science/pith/JAP7W2WF27FSFRVQQAEAP2SVAU.json","view_paper":"https://pith.science/paper/JAP7W2WF","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2408.12393&json=true","fetch_graph":"https://pith.science/api/pith-number/JAP7W2WF27FSFRVQQAEAP2SVAU/graph.json","fetch_events":"https://pith.science/api/pith-number/JAP7W2WF27FSFRVQQAEAP2SVAU/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/JAP7W2WF27FSFRVQQAEAP2SVAU/action/timestamp_anchor","attest_storage":"https://pith.science/pith/JAP7W2WF27FSFRVQQAEAP2SVAU/action/storage_attestation","attest_author":"https://pith.science/pith/JAP7W2WF27FSFRVQQAEAP2SVAU/action/author_attestation","sign_citation":"https://pith.science/pith/JAP7W2WF27FSFRVQQAEAP2SVAU/action/citation_signature","submit_replication":"https://pith.science/pith/JAP7W2WF27FSFRVQQAEAP2SVAU/action/replication_record"}},"created_at":"2026-07-05T09:34:17.996847+00:00","updated_at":"2026-07-05T09:34:17.996847+00:00"}