{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2003:V7R4KWTQ2I4YW6K25IDJLUMCDC","short_pith_number":"pith:V7R4KWTQ","canonical_record":{"source":{"id":"nucl-th/0301032","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"nucl-th","submitted_at":"2003-01-09T18:46:10Z","cross_cats_sorted":[],"title_canon_sha256":"e58dfa18851f54d42ac528420696a456f43ebb1d8db3ddd2eb58d4c83cd21f87","abstract_canon_sha256":"36b8e2938f7aca8a1f5559c7bdf332d1bc08ba4478f569f8ca41531f5baf3948"},"schema_version":"1.0"},"canonical_sha256":"afe3c55a70d2398b795aea0695d18218b50e41562dcd6ee9fee0a1bd985f21aa","source":{"kind":"arxiv","id":"nucl-th/0301032","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"nucl-th/0301032","created_at":"2026-05-18T04:18:13Z"},{"alias_kind":"arxiv_version","alias_value":"nucl-th/0301032v2","created_at":"2026-05-18T04:18:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.nucl-th/0301032","created_at":"2026-05-18T04:18:13Z"},{"alias_kind":"pith_short_12","alias_value":"V7R4KWTQ2I4Y","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"V7R4KWTQ2I4YW6K2","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"V7R4KWTQ","created_at":"2026-05-18T12:25:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2003:V7R4KWTQ2I4YW6K25IDJLUMCDC","target":"record","payload":{"canonical_record":{"source":{"id":"nucl-th/0301032","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"nucl-th","submitted_at":"2003-01-09T18:46:10Z","cross_cats_sorted":[],"title_canon_sha256":"e58dfa18851f54d42ac528420696a456f43ebb1d8db3ddd2eb58d4c83cd21f87","abstract_canon_sha256":"36b8e2938f7aca8a1f5559c7bdf332d1bc08ba4478f569f8ca41531f5baf3948"},"schema_version":"1.0"},"canonical_sha256":"afe3c55a70d2398b795aea0695d18218b50e41562dcd6ee9fee0a1bd985f21aa","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:18:13.756169Z","signature_b64":"YY/MHjbLIU+Ex+gI6uDYaKu1cCjPP59yoS5tt5nujNzpRi7uiTNwKRbSlslHx8kXC8TkB7QElYg7LE852CNhBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"afe3c55a70d2398b795aea0695d18218b50e41562dcd6ee9fee0a1bd985f21aa","last_reissued_at":"2026-05-18T04:18:13.755613Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:18:13.755613Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"nucl-th/0301032","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":"2026-05-18T04:18:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"42rfqNw+VkkzPtxOvNSOJ/SUDuKCoUrnwZuTuNX8/r4bhWwHdeGjIsHi9UaQXkpQotDG4jhEZtyOp09+66h0Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T22:08:09.747385Z"},"content_sha256":"a9e1add3ecb848607393524041579761dcadd1a5b4a54b9806236ff6410283b1","schema_version":"1.0","event_id":"sha256:a9e1add3ecb848607393524041579761dcadd1a5b4a54b9806236ff6410283b1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2003:V7R4KWTQ2I4YW6K25IDJLUMCDC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Microscopic calculations in asymmetric nuclear matter","license":"","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"D. Alonso, F. Sammarruca","submitted_at":"2003-01-09T18:46:10Z","abstract_excerpt":"A microscopic calculation of the equation of state for asymmetric nuclear matter is presented. We employ realistic nucleon-nucleon forces and operate within the Dirac-Brueckner-Hartree-Fock approach to nuclear matter. The focal point of this paper is a (momentum-space) G-matrix which properly accounts for the asymmetry between protons and neutrons. This will merge naturally into the development of an effective interaction suitable for applications to asymmetric nuclei, which will be the object of extensive study in the future."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-th/0301032","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":"2026-05-18T04:18:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uzB0dw6hXkiofOMf1im9K/+xafp7m5FjgNmK4KFME7XCQCX4ysPBMXNkh3ovr/ohsnvIV5cggoW2hwilmpo3BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T22:08:09.747730Z"},"content_sha256":"bd4f46c9ec1eb392fe517fd9a1ae45c4b7a1e633ccb6e14cdc1810776699e99b","schema_version":"1.0","event_id":"sha256:bd4f46c9ec1eb392fe517fd9a1ae45c4b7a1e633ccb6e14cdc1810776699e99b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/V7R4KWTQ2I4YW6K25IDJLUMCDC/bundle.json","state_url":"https://pith.science/pith/V7R4KWTQ2I4YW6K25IDJLUMCDC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/V7R4KWTQ2I4YW6K25IDJLUMCDC/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":"2026-06-03T22:08:09Z","links":{"resolver":"https://pith.science/pith/V7R4KWTQ2I4YW6K25IDJLUMCDC","bundle":"https://pith.science/pith/V7R4KWTQ2I4YW6K25IDJLUMCDC/bundle.json","state":"https://pith.science/pith/V7R4KWTQ2I4YW6K25IDJLUMCDC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/V7R4KWTQ2I4YW6K25IDJLUMCDC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2003:V7R4KWTQ2I4YW6K25IDJLUMCDC","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":"36b8e2938f7aca8a1f5559c7bdf332d1bc08ba4478f569f8ca41531f5baf3948","cross_cats_sorted":[],"license":"","primary_cat":"nucl-th","submitted_at":"2003-01-09T18:46:10Z","title_canon_sha256":"e58dfa18851f54d42ac528420696a456f43ebb1d8db3ddd2eb58d4c83cd21f87"},"schema_version":"1.0","source":{"id":"nucl-th/0301032","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"nucl-th/0301032","created_at":"2026-05-18T04:18:13Z"},{"alias_kind":"arxiv_version","alias_value":"nucl-th/0301032v2","created_at":"2026-05-18T04:18:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.nucl-th/0301032","created_at":"2026-05-18T04:18:13Z"},{"alias_kind":"pith_short_12","alias_value":"V7R4KWTQ2I4Y","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"V7R4KWTQ2I4YW6K2","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"V7R4KWTQ","created_at":"2026-05-18T12:25:52Z"}],"graph_snapshots":[{"event_id":"sha256:bd4f46c9ec1eb392fe517fd9a1ae45c4b7a1e633ccb6e14cdc1810776699e99b","target":"graph","created_at":"2026-05-18T04:18:13Z","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":"A microscopic calculation of the equation of state for asymmetric nuclear matter is presented. We employ realistic nucleon-nucleon forces and operate within the Dirac-Brueckner-Hartree-Fock approach to nuclear matter. The focal point of this paper is a (momentum-space) G-matrix which properly accounts for the asymmetry between protons and neutrons. This will merge naturally into the development of an effective interaction suitable for applications to asymmetric nuclei, which will be the object of extensive study in the future.","authors_text":"D. Alonso, F. Sammarruca","cross_cats":[],"headline":"","license":"","primary_cat":"nucl-th","submitted_at":"2003-01-09T18:46:10Z","title":"Microscopic calculations in asymmetric nuclear matter"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-th/0301032","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:a9e1add3ecb848607393524041579761dcadd1a5b4a54b9806236ff6410283b1","target":"record","created_at":"2026-05-18T04:18:13Z","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":"36b8e2938f7aca8a1f5559c7bdf332d1bc08ba4478f569f8ca41531f5baf3948","cross_cats_sorted":[],"license":"","primary_cat":"nucl-th","submitted_at":"2003-01-09T18:46:10Z","title_canon_sha256":"e58dfa18851f54d42ac528420696a456f43ebb1d8db3ddd2eb58d4c83cd21f87"},"schema_version":"1.0","source":{"id":"nucl-th/0301032","kind":"arxiv","version":2}},"canonical_sha256":"afe3c55a70d2398b795aea0695d18218b50e41562dcd6ee9fee0a1bd985f21aa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"afe3c55a70d2398b795aea0695d18218b50e41562dcd6ee9fee0a1bd985f21aa","first_computed_at":"2026-05-18T04:18:13.755613Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:18:13.755613Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YY/MHjbLIU+Ex+gI6uDYaKu1cCjPP59yoS5tt5nujNzpRi7uiTNwKRbSlslHx8kXC8TkB7QElYg7LE852CNhBA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:18:13.756169Z","signed_message":"canonical_sha256_bytes"},"source_id":"nucl-th/0301032","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a9e1add3ecb848607393524041579761dcadd1a5b4a54b9806236ff6410283b1","sha256:bd4f46c9ec1eb392fe517fd9a1ae45c4b7a1e633ccb6e14cdc1810776699e99b"],"state_sha256":"8ca7351727c1ba0646065ec7699d92c4233152ca8a2ddc67b0a24d34d01961e1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iqj9rehp0xG98W8t04RLe1qgWtCuqDuwL7MhsZtIF63O7aJS30Jrq+qKvneoNeB4ZJJ+uHgyT27PZiL4e/LgDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T22:08:09.749685Z","bundle_sha256":"70744363791fb20d659b6b965445a606d33d70277e67ad03bba13983c6784c2e"}}