{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:XQUAQCM55WTP5PBOIQB5F2LFEG","short_pith_number":"pith:XQUAQCM5","canonical_record":{"source":{"id":"1509.03306","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-09-09T20:13:48Z","cross_cats_sorted":["astro-ph.SR","hep-ph"],"title_canon_sha256":"92ddeb551c5ba2a2cc9221d5b29dcc0f8e7b7a2b2ad6a612a134de5bb4f4746d","abstract_canon_sha256":"1ed9980cd83ae68ea09235cbde9cd4c669d7c108082fc5122c0a67d900fce2c8"},"schema_version":"1.0"},"canonical_sha256":"bc2808099deda6febc2e4403d2e96521807ca9513c090c0b9f50d30401f3d2c1","source":{"kind":"arxiv","id":"1509.03306","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.03306","created_at":"2026-05-18T01:27:07Z"},{"alias_kind":"arxiv_version","alias_value":"1509.03306v2","created_at":"2026-05-18T01:27:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.03306","created_at":"2026-05-18T01:27:07Z"},{"alias_kind":"pith_short_12","alias_value":"XQUAQCM55WTP","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_16","alias_value":"XQUAQCM55WTP5PBO","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_8","alias_value":"XQUAQCM5","created_at":"2026-05-18T12:29:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:XQUAQCM55WTP5PBOIQB5F2LFEG","target":"record","payload":{"canonical_record":{"source":{"id":"1509.03306","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-09-09T20:13:48Z","cross_cats_sorted":["astro-ph.SR","hep-ph"],"title_canon_sha256":"92ddeb551c5ba2a2cc9221d5b29dcc0f8e7b7a2b2ad6a612a134de5bb4f4746d","abstract_canon_sha256":"1ed9980cd83ae68ea09235cbde9cd4c669d7c108082fc5122c0a67d900fce2c8"},"schema_version":"1.0"},"canonical_sha256":"bc2808099deda6febc2e4403d2e96521807ca9513c090c0b9f50d30401f3d2c1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:27:07.351418Z","signature_b64":"dQWneiYmeK1mSdAykoivhMJu7q81ch3NCWy1FAbiYg1GyjkBNxEBJj0s94zKgz3vU/cVFUBw99KmQhxUTZ8RDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bc2808099deda6febc2e4403d2e96521807ca9513c090c0b9f50d30401f3d2c1","last_reissued_at":"2026-05-18T01:27:07.350700Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:27:07.350700Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1509.03306","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:27:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"73mSPraF2w3lKFGbC5GydvIkZZC1tNYyGOTDpk/rKGI0JX83lmev5KcOIr0oOGRMUs+3xZJ/G/WLNL9a0Hl4Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T04:21:34.622691Z"},"content_sha256":"565fc51dab390f8cd45aee61601ac4207fba424884b562d8fcfc9e316b19c2bc","schema_version":"1.0","event_id":"sha256:565fc51dab390f8cd45aee61601ac4207fba424884b562d8fcfc9e316b19c2bc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:XQUAQCM55WTP5PBOIQB5F2LFEG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Production of unstable heavy neutrinos in proto-neutron stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR","hep-ph"],"primary_cat":"astro-ph.HE","authors_text":"C. Albertus, M. A. P\\'erez-Garc\\'ia, M. Masip","submitted_at":"2015-09-09T20:13:48Z","abstract_excerpt":"We discuss the production of a class of heavy sterile neutrinos $\\nu_h$ in proto-neutron stars. The neutrinos, of mass around $50$ MeV, have a negligible mixing with the active species but relatively large dimension-5 electromagnetic couplings. In particular, a magnetic dipole moment $\\mu\\approx 10^{-6}$ GeV$^{-1}$ implies that they are thermally produced through $e^+ e^-\\to \\bar \\nu_h \\nu_h$ in the early phase of the core collapse, whereas a heavy--light transition moment $\\mu_{\\rm tr}\\approx 10^{-8}$ GeV$^{-1}$ allows their decay $\\nu_h\\to \\nu_i \\gamma$ with a lifetime around $10^{-3}$ s. Th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.03306","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:27:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6CIqyss8mMwt823FfMYLZy1oExhrjDXnnhRrCifLkuciYj0o5BHGtsMRqb0/+beza/jR3D8IhKcVUnu7x16IBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T04:21:34.623034Z"},"content_sha256":"23eca5f12485509cf2ad020da0b1d6738f9cdd3969416ed295b15d555e696a18","schema_version":"1.0","event_id":"sha256:23eca5f12485509cf2ad020da0b1d6738f9cdd3969416ed295b15d555e696a18"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XQUAQCM55WTP5PBOIQB5F2LFEG/bundle.json","state_url":"https://pith.science/pith/XQUAQCM55WTP5PBOIQB5F2LFEG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XQUAQCM55WTP5PBOIQB5F2LFEG/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":"2026-06-02T04:21:34Z","links":{"resolver":"https://pith.science/pith/XQUAQCM55WTP5PBOIQB5F2LFEG","bundle":"https://pith.science/pith/XQUAQCM55WTP5PBOIQB5F2LFEG/bundle.json","state":"https://pith.science/pith/XQUAQCM55WTP5PBOIQB5F2LFEG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XQUAQCM55WTP5PBOIQB5F2LFEG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:XQUAQCM55WTP5PBOIQB5F2LFEG","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":"1ed9980cd83ae68ea09235cbde9cd4c669d7c108082fc5122c0a67d900fce2c8","cross_cats_sorted":["astro-ph.SR","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-09-09T20:13:48Z","title_canon_sha256":"92ddeb551c5ba2a2cc9221d5b29dcc0f8e7b7a2b2ad6a612a134de5bb4f4746d"},"schema_version":"1.0","source":{"id":"1509.03306","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.03306","created_at":"2026-05-18T01:27:07Z"},{"alias_kind":"arxiv_version","alias_value":"1509.03306v2","created_at":"2026-05-18T01:27:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.03306","created_at":"2026-05-18T01:27:07Z"},{"alias_kind":"pith_short_12","alias_value":"XQUAQCM55WTP","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_16","alias_value":"XQUAQCM55WTP5PBO","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_8","alias_value":"XQUAQCM5","created_at":"2026-05-18T12:29:50Z"}],"graph_snapshots":[{"event_id":"sha256:23eca5f12485509cf2ad020da0b1d6738f9cdd3969416ed295b15d555e696a18","target":"graph","created_at":"2026-05-18T01:27:07Z","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":"We discuss the production of a class of heavy sterile neutrinos $\\nu_h$ in proto-neutron stars. The neutrinos, of mass around $50$ MeV, have a negligible mixing with the active species but relatively large dimension-5 electromagnetic couplings. In particular, a magnetic dipole moment $\\mu\\approx 10^{-6}$ GeV$^{-1}$ implies that they are thermally produced through $e^+ e^-\\to \\bar \\nu_h \\nu_h$ in the early phase of the core collapse, whereas a heavy--light transition moment $\\mu_{\\rm tr}\\approx 10^{-8}$ GeV$^{-1}$ allows their decay $\\nu_h\\to \\nu_i \\gamma$ with a lifetime around $10^{-3}$ s. Th","authors_text":"C. Albertus, M. A. P\\'erez-Garc\\'ia, M. Masip","cross_cats":["astro-ph.SR","hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-09-09T20:13:48Z","title":"Production of unstable heavy neutrinos in proto-neutron stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.03306","kind":"arxiv","version":2},"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":"sha256:565fc51dab390f8cd45aee61601ac4207fba424884b562d8fcfc9e316b19c2bc","target":"record","created_at":"2026-05-18T01:27:07Z","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":"1ed9980cd83ae68ea09235cbde9cd4c669d7c108082fc5122c0a67d900fce2c8","cross_cats_sorted":["astro-ph.SR","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-09-09T20:13:48Z","title_canon_sha256":"92ddeb551c5ba2a2cc9221d5b29dcc0f8e7b7a2b2ad6a612a134de5bb4f4746d"},"schema_version":"1.0","source":{"id":"1509.03306","kind":"arxiv","version":2}},"canonical_sha256":"bc2808099deda6febc2e4403d2e96521807ca9513c090c0b9f50d30401f3d2c1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bc2808099deda6febc2e4403d2e96521807ca9513c090c0b9f50d30401f3d2c1","first_computed_at":"2026-05-18T01:27:07.350700Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:27:07.350700Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dQWneiYmeK1mSdAykoivhMJu7q81ch3NCWy1FAbiYg1GyjkBNxEBJj0s94zKgz3vU/cVFUBw99KmQhxUTZ8RDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:27:07.351418Z","signed_message":"canonical_sha256_bytes"},"source_id":"1509.03306","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:565fc51dab390f8cd45aee61601ac4207fba424884b562d8fcfc9e316b19c2bc","sha256:23eca5f12485509cf2ad020da0b1d6738f9cdd3969416ed295b15d555e696a18"],"state_sha256":"531f1932d73c2c67db586c9b905dbb2bba619dadec918483e9d222936847547a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"To63n4t8tUj45OByIjoVvHsgl7oQv+TRPMC7WkbZQDDOOmeIFKoTZYaLjwv+45hWS57UNujK/PnoqV7x88qLDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T04:21:34.624941Z","bundle_sha256":"2d67480fc35723e7759fac56401e856dde610a49f8cf8f7df596315f298dd826"}}