{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:GM3TLT3KZ7BNXPYK6WENJUEOGH","short_pith_number":"pith:GM3TLT3K","canonical_record":{"source":{"id":"1504.02729","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-04-10T16:12:15Z","cross_cats_sorted":[],"title_canon_sha256":"9b2af45c1eb846ea6b67a41c661f34e92e4a13d6f0ac300192b7eac061b7be5b","abstract_canon_sha256":"9aa30163de9fa90d80b3a0fef5b4bc89823f257b0bcf1da16fb9044ae414e095"},"schema_version":"1.0"},"canonical_sha256":"333735cf6acfc2dbbf0af588d4d08e31c713b61c2c2932f3869be0a8981a8d80","source":{"kind":"arxiv","id":"1504.02729","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.02729","created_at":"2026-05-18T02:04:01Z"},{"alias_kind":"arxiv_version","alias_value":"1504.02729v1","created_at":"2026-05-18T02:04:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.02729","created_at":"2026-05-18T02:04:01Z"},{"alias_kind":"pith_short_12","alias_value":"GM3TLT3KZ7BN","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_16","alias_value":"GM3TLT3KZ7BNXPYK","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_8","alias_value":"GM3TLT3K","created_at":"2026-05-18T12:29:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:GM3TLT3KZ7BNXPYK6WENJUEOGH","target":"record","payload":{"canonical_record":{"source":{"id":"1504.02729","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-04-10T16:12:15Z","cross_cats_sorted":[],"title_canon_sha256":"9b2af45c1eb846ea6b67a41c661f34e92e4a13d6f0ac300192b7eac061b7be5b","abstract_canon_sha256":"9aa30163de9fa90d80b3a0fef5b4bc89823f257b0bcf1da16fb9044ae414e095"},"schema_version":"1.0"},"canonical_sha256":"333735cf6acfc2dbbf0af588d4d08e31c713b61c2c2932f3869be0a8981a8d80","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:04:01.096901Z","signature_b64":"IkjEKSLmDrPywdMRKDONgiCKXoJe8k4aSJp8dmG2za4rFJzLLfkKKFEBuJsO+QwFHFobyhyxTQNqR1awtdfACw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"333735cf6acfc2dbbf0af588d4d08e31c713b61c2c2932f3869be0a8981a8d80","last_reissued_at":"2026-05-18T02:04:01.096304Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:04:01.096304Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1504.02729","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:04:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ujwyz+77ZVMHrpYvYcTK2zeXUg+NzjG44hsZvJBBgJ864DAk11xQRINZjBhZjpH6Cfh1gV3RV2oURt0HRcw3Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T02:44:21.704860Z"},"content_sha256":"026d40cd5b149ed7f7a108b48476642490e335e019e4fb84cb7e08418d0aa6a3","schema_version":"1.0","event_id":"sha256:026d40cd5b149ed7f7a108b48476642490e335e019e4fb84cb7e08418d0aa6a3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:GM3TLT3KZ7BNXPYK6WENJUEOGH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Supernova Bounds on keV-mass Sterile Neutrinos","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Shun Zhou","submitted_at":"2015-04-10T16:12:15Z","abstract_excerpt":"Sterile neutrinos of keV masses are one of the most promising candidates for the warm dark matter, which could solve the small-scale problems encountered in the scenario of cold dark matter. We present a detailed study of the production of such sterile neutrinos in a supernova core, and derive stringent bounds on the active-sterile neutrino mixing angles and sterile neutrino masses based on the standard energy-loss argument."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.02729","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:04:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"p3/i1RegyZHBDaU+zEdqOyLkBdojhm56fryMcJpo5XgjzxKyVlF6wYQ1nbr2K1nJmRh94ocxJo0QuYW+zC08Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T02:44:21.705528Z"},"content_sha256":"e99b90c7143adc2fc89f30e325ceced58d4621282db8250ccb4347d530251bad","schema_version":"1.0","event_id":"sha256:e99b90c7143adc2fc89f30e325ceced58d4621282db8250ccb4347d530251bad"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GM3TLT3KZ7BNXPYK6WENJUEOGH/bundle.json","state_url":"https://pith.science/pith/GM3TLT3KZ7BNXPYK6WENJUEOGH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GM3TLT3KZ7BNXPYK6WENJUEOGH/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-25T02:44:21Z","links":{"resolver":"https://pith.science/pith/GM3TLT3KZ7BNXPYK6WENJUEOGH","bundle":"https://pith.science/pith/GM3TLT3KZ7BNXPYK6WENJUEOGH/bundle.json","state":"https://pith.science/pith/GM3TLT3KZ7BNXPYK6WENJUEOGH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GM3TLT3KZ7BNXPYK6WENJUEOGH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:GM3TLT3KZ7BNXPYK6WENJUEOGH","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"9aa30163de9fa90d80b3a0fef5b4bc89823f257b0bcf1da16fb9044ae414e095","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-04-10T16:12:15Z","title_canon_sha256":"9b2af45c1eb846ea6b67a41c661f34e92e4a13d6f0ac300192b7eac061b7be5b"},"schema_version":"1.0","source":{"id":"1504.02729","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.02729","created_at":"2026-05-18T02:04:01Z"},{"alias_kind":"arxiv_version","alias_value":"1504.02729v1","created_at":"2026-05-18T02:04:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.02729","created_at":"2026-05-18T02:04:01Z"},{"alias_kind":"pith_short_12","alias_value":"GM3TLT3KZ7BN","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_16","alias_value":"GM3TLT3KZ7BNXPYK","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_8","alias_value":"GM3TLT3K","created_at":"2026-05-18T12:29:22Z"}],"graph_snapshots":[{"event_id":"sha256:e99b90c7143adc2fc89f30e325ceced58d4621282db8250ccb4347d530251bad","target":"graph","created_at":"2026-05-18T02:04:01Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"Sterile neutrinos of keV masses are one of the most promising candidates for the warm dark matter, which could solve the small-scale problems encountered in the scenario of cold dark matter. We present a detailed study of the production of such sterile neutrinos in a supernova core, and derive stringent bounds on the active-sterile neutrino mixing angles and sterile neutrino masses based on the standard energy-loss argument.","authors_text":"Shun Zhou","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-04-10T16:12:15Z","title":"Supernova Bounds on keV-mass Sterile Neutrinos"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.02729","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:026d40cd5b149ed7f7a108b48476642490e335e019e4fb84cb7e08418d0aa6a3","target":"record","created_at":"2026-05-18T02:04:01Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"9aa30163de9fa90d80b3a0fef5b4bc89823f257b0bcf1da16fb9044ae414e095","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-04-10T16:12:15Z","title_canon_sha256":"9b2af45c1eb846ea6b67a41c661f34e92e4a13d6f0ac300192b7eac061b7be5b"},"schema_version":"1.0","source":{"id":"1504.02729","kind":"arxiv","version":1}},"canonical_sha256":"333735cf6acfc2dbbf0af588d4d08e31c713b61c2c2932f3869be0a8981a8d80","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"333735cf6acfc2dbbf0af588d4d08e31c713b61c2c2932f3869be0a8981a8d80","first_computed_at":"2026-05-18T02:04:01.096304Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:04:01.096304Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IkjEKSLmDrPywdMRKDONgiCKXoJe8k4aSJp8dmG2za4rFJzLLfkKKFEBuJsO+QwFHFobyhyxTQNqR1awtdfACw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:04:01.096901Z","signed_message":"canonical_sha256_bytes"},"source_id":"1504.02729","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:026d40cd5b149ed7f7a108b48476642490e335e019e4fb84cb7e08418d0aa6a3","sha256:e99b90c7143adc2fc89f30e325ceced58d4621282db8250ccb4347d530251bad"],"state_sha256":"c9bbcaa3dfea6ac94a4ade1554a9541692d4a5804a4962f7d69bb28d15a20b66"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nMU8BpvOZ2EmKa0VhfKBpG+Fsr1z5N5YJjWgWglc5vvGPNMK6TKsKGJjx/2h+cAC+uUT40zn+IbXTflM7ta4AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T02:44:21.708890Z","bundle_sha256":"12191c11ab27508d16d0e5ba164312456b8d9400f77ecf74b23dd423a7d77c6e"}}