{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:CP54YG3GQTGESRFMSCVL3RGMTJ","short_pith_number":"pith:CP54YG3G","schema_version":"1.0","canonical_sha256":"13fbcc1b6684cc4944ac90aabdc4cc9a63478c3251b281bd7d14ff82b531a0e1","source":{"kind":"arxiv","id":"1311.6407","version":2},"attestation_state":"computed","paper":{"title":"Gadolinium in water Cherenkov detectors improves detection of supernova $\\nu_e$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph","nucl-th"],"primary_cat":"astro-ph.HE","authors_text":"John F. Beacom, Ranjan Laha","submitted_at":"2013-11-25T18:56:04Z","abstract_excerpt":"Detecting supernova $\\nu_e$ is essential for testing supernova and neutrino physics, but the yields are small and the backgrounds from other channels large, e.g., $\\sim 10^2$ and $\\sim 10^4$ events, respectively, in Super-Kamiokande. We develop a new way to isolate supernova $\\nu_e$, using gadolinium-loaded water Cherenkov detectors. The forward-peaked nature of $\\nu_e + e^- \\rightarrow \\nu_e + e^-$ allows an angular cut that contains the majority of events. Even in a narrow cone, near-isotropic inverse beta events, $\\bar{\\nu}_e + p \\rightarrow e^+ + n$, are a large background. With neutron de"},"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":"1311.6407","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-11-25T18:56:04Z","cross_cats_sorted":["hep-ph","nucl-th"],"title_canon_sha256":"2c26a9db4cdb2769c597448be09c0cc2a2a317d2f46f14627818908dc98283cf","abstract_canon_sha256":"0a729be63a3e68903c48273f4731cc6b799a7c783fee56b78954eab83c562ca1"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:55:58.761210Z","signature_b64":"3Nydd+WHMTPdmLUs2bIb/zDikDbGNujcApze8Cn7vZqy4JDGU0qRdeRICBSTi+sMaq4Y4MtuUae+p1jVTgb5BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"13fbcc1b6684cc4944ac90aabdc4cc9a63478c3251b281bd7d14ff82b531a0e1","last_reissued_at":"2026-05-18T02:55:58.760535Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:55:58.760535Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Gadolinium in water Cherenkov detectors improves detection of supernova $\\nu_e$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph","nucl-th"],"primary_cat":"astro-ph.HE","authors_text":"John F. Beacom, Ranjan Laha","submitted_at":"2013-11-25T18:56:04Z","abstract_excerpt":"Detecting supernova $\\nu_e$ is essential for testing supernova and neutrino physics, but the yields are small and the backgrounds from other channels large, e.g., $\\sim 10^2$ and $\\sim 10^4$ events, respectively, in Super-Kamiokande. We develop a new way to isolate supernova $\\nu_e$, using gadolinium-loaded water Cherenkov detectors. The forward-peaked nature of $\\nu_e + e^- \\rightarrow \\nu_e + e^-$ allows an angular cut that contains the majority of events. Even in a narrow cone, near-isotropic inverse beta events, $\\bar{\\nu}_e + p \\rightarrow e^+ + n$, are a large background. With neutron de"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.6407","kind":"arxiv","version":2},"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":"1311.6407","created_at":"2026-05-18T02:55:58.760622+00:00"},{"alias_kind":"arxiv_version","alias_value":"1311.6407v2","created_at":"2026-05-18T02:55:58.760622+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.6407","created_at":"2026-05-18T02:55:58.760622+00:00"},{"alias_kind":"pith_short_12","alias_value":"CP54YG3GQTGE","created_at":"2026-05-18T12:27:40.988391+00:00"},{"alias_kind":"pith_short_16","alias_value":"CP54YG3GQTGESRFM","created_at":"2026-05-18T12:27:40.988391+00:00"},{"alias_kind":"pith_short_8","alias_value":"CP54YG3G","created_at":"2026-05-18T12:27:40.988391+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/CP54YG3GQTGESRFMSCVL3RGMTJ","json":"https://pith.science/pith/CP54YG3GQTGESRFMSCVL3RGMTJ.json","graph_json":"https://pith.science/api/pith-number/CP54YG3GQTGESRFMSCVL3RGMTJ/graph.json","events_json":"https://pith.science/api/pith-number/CP54YG3GQTGESRFMSCVL3RGMTJ/events.json","paper":"https://pith.science/paper/CP54YG3G"},"agent_actions":{"view_html":"https://pith.science/pith/CP54YG3GQTGESRFMSCVL3RGMTJ","download_json":"https://pith.science/pith/CP54YG3GQTGESRFMSCVL3RGMTJ.json","view_paper":"https://pith.science/paper/CP54YG3G","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1311.6407&json=true","fetch_graph":"https://pith.science/api/pith-number/CP54YG3GQTGESRFMSCVL3RGMTJ/graph.json","fetch_events":"https://pith.science/api/pith-number/CP54YG3GQTGESRFMSCVL3RGMTJ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/CP54YG3GQTGESRFMSCVL3RGMTJ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/CP54YG3GQTGESRFMSCVL3RGMTJ/action/storage_attestation","attest_author":"https://pith.science/pith/CP54YG3GQTGESRFMSCVL3RGMTJ/action/author_attestation","sign_citation":"https://pith.science/pith/CP54YG3GQTGESRFMSCVL3RGMTJ/action/citation_signature","submit_replication":"https://pith.science/pith/CP54YG3GQTGESRFMSCVL3RGMTJ/action/replication_record"}},"created_at":"2026-05-18T02:55:58.760622+00:00","updated_at":"2026-05-18T02:55:58.760622+00:00"}