{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2002:KRONNDG6OH3NKPOL7PIUFSRRVG","short_pith_number":"pith:KRONNDG6","canonical_record":{"source":{"id":"hep-ph/0211176","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2002-11-12T15:23:00Z","cross_cats_sorted":[],"title_canon_sha256":"c2bea41ca6ef30daf77aaa59655ae610e4b698c04d53b1f233fe08d53c3b1528","abstract_canon_sha256":"11d1c7897957f483e5def020fbd5e7c05550d682e79aa289ee4e7703d00c4e39"},"schema_version":"1.0"},"canonical_sha256":"545cd68cde71f6d53dcbfbd142ca31a9974bc301046ce942b58a2b6b28d7f36c","source":{"kind":"arxiv","id":"hep-ph/0211176","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0211176","created_at":"2026-05-18T00:37:29Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0211176v1","created_at":"2026-05-18T00:37:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0211176","created_at":"2026-05-18T00:37:29Z"},{"alias_kind":"pith_short_12","alias_value":"KRONNDG6OH3N","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_16","alias_value":"KRONNDG6OH3NKPOL","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_8","alias_value":"KRONNDG6","created_at":"2026-05-18T12:25:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2002:KRONNDG6OH3NKPOL7PIUFSRRVG","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ph/0211176","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2002-11-12T15:23:00Z","cross_cats_sorted":[],"title_canon_sha256":"c2bea41ca6ef30daf77aaa59655ae610e4b698c04d53b1f233fe08d53c3b1528","abstract_canon_sha256":"11d1c7897957f483e5def020fbd5e7c05550d682e79aa289ee4e7703d00c4e39"},"schema_version":"1.0"},"canonical_sha256":"545cd68cde71f6d53dcbfbd142ca31a9974bc301046ce942b58a2b6b28d7f36c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:37:29.104989Z","signature_b64":"I3GMS0rLrnlwQQV8Ecv/9pdx56Ujz9LP2iT+mvBsWIVp52njx/W1ge2wq0KU5BGsfBZ4A13iG18l7OiceInSCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"545cd68cde71f6d53dcbfbd142ca31a9974bc301046ce942b58a2b6b28d7f36c","last_reissued_at":"2026-05-18T00:37:29.104499Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:37:29.104499Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ph/0211176","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":"2026-05-18T00:37:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mNYKNEKpYxCD1JmASSehvWacNnvPFCi/OSMq6qnxs4Glvmle9aFDCWmZWiOWiuzQ3Byi/2JbG/kkeLMvOUVyDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-01T12:13:13.310272Z"},"content_sha256":"6ee6565728b1ad5b48c0e8c97b6d2b83cc6d7b60d45ff07084f9e123df39adaa","schema_version":"1.0","event_id":"sha256:6ee6565728b1ad5b48c0e8c97b6d2b83cc6d7b60d45ff07084f9e123df39adaa"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2002:KRONNDG6OH3NKPOL7PIUFSRRVG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Direct Urca processes in superdense cores of neutron stars","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"L. B. Leinson","submitted_at":"2002-11-12T15:23:00Z","abstract_excerpt":"We use the field theoretical model to perform relativistic calculations of neutrino energy losses caused by the direct Urca processes on nucleons in the degenerate baryon matter. By our analysis, in a free nucleon gas under beta equilibrium, the direct neutron decay is forbidden if the number density of neutrons exceeds the critical value $n_{n}^{c}=5.9\\times 10^{31} cm^{-3}$. In superdense nuclear matter, $n>n_{0}$, the weak decay of neutrons is possible only due to strong interactions, caused by an exchange of isovector mesons. Mean field of isovector mesons in the medium creates a large ene"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0211176","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":"2026-05-18T00:37:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9ELRQCTX1BrO9YVYNuTIRbgB0YXFA6RoFhusD0xNxmhghZNx5w7qWj5P56GuYWNI3e7kL8Mt4T/sGLQurM6lCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-01T12:13:13.310627Z"},"content_sha256":"30e32aa18c87f4ef12676449fbf0780b7d2d2e782cba8d8453a98005187672d4","schema_version":"1.0","event_id":"sha256:30e32aa18c87f4ef12676449fbf0780b7d2d2e782cba8d8453a98005187672d4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KRONNDG6OH3NKPOL7PIUFSRRVG/bundle.json","state_url":"https://pith.science/pith/KRONNDG6OH3NKPOL7PIUFSRRVG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KRONNDG6OH3NKPOL7PIUFSRRVG/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":"2026-07-01T12:13:13Z","links":{"resolver":"https://pith.science/pith/KRONNDG6OH3NKPOL7PIUFSRRVG","bundle":"https://pith.science/pith/KRONNDG6OH3NKPOL7PIUFSRRVG/bundle.json","state":"https://pith.science/pith/KRONNDG6OH3NKPOL7PIUFSRRVG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KRONNDG6OH3NKPOL7PIUFSRRVG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2002:KRONNDG6OH3NKPOL7PIUFSRRVG","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":"11d1c7897957f483e5def020fbd5e7c05550d682e79aa289ee4e7703d00c4e39","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"2002-11-12T15:23:00Z","title_canon_sha256":"c2bea41ca6ef30daf77aaa59655ae610e4b698c04d53b1f233fe08d53c3b1528"},"schema_version":"1.0","source":{"id":"hep-ph/0211176","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0211176","created_at":"2026-05-18T00:37:29Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0211176v1","created_at":"2026-05-18T00:37:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0211176","created_at":"2026-05-18T00:37:29Z"},{"alias_kind":"pith_short_12","alias_value":"KRONNDG6OH3N","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_16","alias_value":"KRONNDG6OH3NKPOL","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_8","alias_value":"KRONNDG6","created_at":"2026-05-18T12:25:51Z"}],"graph_snapshots":[{"event_id":"sha256:30e32aa18c87f4ef12676449fbf0780b7d2d2e782cba8d8453a98005187672d4","target":"graph","created_at":"2026-05-18T00:37:29Z","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 use the field theoretical model to perform relativistic calculations of neutrino energy losses caused by the direct Urca processes on nucleons in the degenerate baryon matter. By our analysis, in a free nucleon gas under beta equilibrium, the direct neutron decay is forbidden if the number density of neutrons exceeds the critical value $n_{n}^{c}=5.9\\times 10^{31} cm^{-3}$. In superdense nuclear matter, $n>n_{0}$, the weak decay of neutrons is possible only due to strong interactions, caused by an exchange of isovector mesons. Mean field of isovector mesons in the medium creates a large ene","authors_text":"L. B. Leinson","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"2002-11-12T15:23:00Z","title":"Direct Urca processes in superdense cores of neutron stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0211176","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":"sha256:6ee6565728b1ad5b48c0e8c97b6d2b83cc6d7b60d45ff07084f9e123df39adaa","target":"record","created_at":"2026-05-18T00:37:29Z","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":"11d1c7897957f483e5def020fbd5e7c05550d682e79aa289ee4e7703d00c4e39","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"2002-11-12T15:23:00Z","title_canon_sha256":"c2bea41ca6ef30daf77aaa59655ae610e4b698c04d53b1f233fe08d53c3b1528"},"schema_version":"1.0","source":{"id":"hep-ph/0211176","kind":"arxiv","version":1}},"canonical_sha256":"545cd68cde71f6d53dcbfbd142ca31a9974bc301046ce942b58a2b6b28d7f36c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"545cd68cde71f6d53dcbfbd142ca31a9974bc301046ce942b58a2b6b28d7f36c","first_computed_at":"2026-05-18T00:37:29.104499Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:37:29.104499Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"I3GMS0rLrnlwQQV8Ecv/9pdx56Ujz9LP2iT+mvBsWIVp52njx/W1ge2wq0KU5BGsfBZ4A13iG18l7OiceInSCw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:37:29.104989Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/0211176","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6ee6565728b1ad5b48c0e8c97b6d2b83cc6d7b60d45ff07084f9e123df39adaa","sha256:30e32aa18c87f4ef12676449fbf0780b7d2d2e782cba8d8453a98005187672d4"],"state_sha256":"4eceb67da6bd10497d775b616575da58491f2a3f87cfd2a43aa5b026cc182677"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gsUeLT9GgJ3kAypwQVTZBgacp66Du3C4qJpveKZKgAUB2t111AeiZiWFgQZEh79bdjZ2JYEIVaDc1zY/jcb2Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-01T12:13:13.312855Z","bundle_sha256":"d4dc6ebea9a96327b593a901157acb5d18982d2dc6121f6daf2e88eb38569025"}}