{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2010:PDMHREMTSXL4R4WA55TXSFBKF3","short_pith_number":"pith:PDMHREMT","schema_version":"1.0","canonical_sha256":"78d878919395d7c8f2c0ef6779142a2ec7b9d759e3a4391516230cb3b0da94b2","source":{"kind":"arxiv","id":"1008.4126","version":4},"attestation_state":"computed","paper":{"title":"Pre-discovery and Follow-up Observations of the Nearby SN 2009nr: Implications for Prompt Type Ia SNe","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"B. Pilecki, D. M. Szczygiel, G. Pojmanski, J. D. Eastman, J. F. Beacom, J. L. Prieto, K. Mogren, K. Z. Stanek, P. Martini, R. Stoll, Rubab Khan","submitted_at":"2010-08-24T20:00:01Z","abstract_excerpt":"We present photometric and spectroscopic observations of the Type Ia supernova SN 2009nr in UGC 8255 (z=0.0122). Following the discovery announcement at what turned out to be ten days after peak, we detected it at V ~15.7 mag in data collected by the All Sky Automated Survey (ASAS) North telescope 2 weeks prior to the peak, and then followed it up with telescopes ranging in aperture from 10-cm to 6.5-m. Using early photometric data available only from ASAS, we find that the SN is similar to the over-luminous Type Ia SN 1991T, with a peak at Mv=-19.6 mag, and a slow decline rate of Dm_15(B)=0.9"},"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":"1008.4126","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-08-24T20:00:01Z","cross_cats_sorted":[],"title_canon_sha256":"fda00ea474d10a95697c4edbcad6d5ee3d3f74f1978fcd5a42e93c4cd495b811","abstract_canon_sha256":"77217bd06e469cf103c97b9431be69a222b88b97b1ef2fec20ea19f5c9a537d8"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:05:43.153247Z","signature_b64":"Q03eORH21enY15M5klfepKrnTAb00wW4VVGXVJW3aYh6SFpdJ3oHnkTULhmibeXKplSxV8R+gw9thihc6smgAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"78d878919395d7c8f2c0ef6779142a2ec7b9d759e3a4391516230cb3b0da94b2","last_reissued_at":"2026-05-18T02:05:43.152487Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:05:43.152487Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Pre-discovery and Follow-up Observations of the Nearby SN 2009nr: Implications for Prompt Type Ia SNe","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"B. Pilecki, D. M. Szczygiel, G. Pojmanski, J. D. Eastman, J. F. Beacom, J. L. Prieto, K. Mogren, K. Z. Stanek, P. Martini, R. Stoll, Rubab Khan","submitted_at":"2010-08-24T20:00:01Z","abstract_excerpt":"We present photometric and spectroscopic observations of the Type Ia supernova SN 2009nr in UGC 8255 (z=0.0122). Following the discovery announcement at what turned out to be ten days after peak, we detected it at V ~15.7 mag in data collected by the All Sky Automated Survey (ASAS) North telescope 2 weeks prior to the peak, and then followed it up with telescopes ranging in aperture from 10-cm to 6.5-m. Using early photometric data available only from ASAS, we find that the SN is similar to the over-luminous Type Ia SN 1991T, with a peak at Mv=-19.6 mag, and a slow decline rate of Dm_15(B)=0.9"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1008.4126","kind":"arxiv","version":4},"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":"1008.4126","created_at":"2026-05-18T02:05:43.152612+00:00"},{"alias_kind":"arxiv_version","alias_value":"1008.4126v4","created_at":"2026-05-18T02:05:43.152612+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1008.4126","created_at":"2026-05-18T02:05:43.152612+00:00"},{"alias_kind":"pith_short_12","alias_value":"PDMHREMTSXL4","created_at":"2026-05-18T12:26:12.377268+00:00"},{"alias_kind":"pith_short_16","alias_value":"PDMHREMTSXL4R4WA","created_at":"2026-05-18T12:26:12.377268+00:00"},{"alias_kind":"pith_short_8","alias_value":"PDMHREMT","created_at":"2026-05-18T12:26:12.377268+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/PDMHREMTSXL4R4WA55TXSFBKF3","json":"https://pith.science/pith/PDMHREMTSXL4R4WA55TXSFBKF3.json","graph_json":"https://pith.science/api/pith-number/PDMHREMTSXL4R4WA55TXSFBKF3/graph.json","events_json":"https://pith.science/api/pith-number/PDMHREMTSXL4R4WA55TXSFBKF3/events.json","paper":"https://pith.science/paper/PDMHREMT"},"agent_actions":{"view_html":"https://pith.science/pith/PDMHREMTSXL4R4WA55TXSFBKF3","download_json":"https://pith.science/pith/PDMHREMTSXL4R4WA55TXSFBKF3.json","view_paper":"https://pith.science/paper/PDMHREMT","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1008.4126&json=true","fetch_graph":"https://pith.science/api/pith-number/PDMHREMTSXL4R4WA55TXSFBKF3/graph.json","fetch_events":"https://pith.science/api/pith-number/PDMHREMTSXL4R4WA55TXSFBKF3/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/PDMHREMTSXL4R4WA55TXSFBKF3/action/timestamp_anchor","attest_storage":"https://pith.science/pith/PDMHREMTSXL4R4WA55TXSFBKF3/action/storage_attestation","attest_author":"https://pith.science/pith/PDMHREMTSXL4R4WA55TXSFBKF3/action/author_attestation","sign_citation":"https://pith.science/pith/PDMHREMTSXL4R4WA55TXSFBKF3/action/citation_signature","submit_replication":"https://pith.science/pith/PDMHREMTSXL4R4WA55TXSFBKF3/action/replication_record"}},"created_at":"2026-05-18T02:05:43.152612+00:00","updated_at":"2026-05-18T02:05:43.152612+00:00"}