{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:NZSYJHRLYPMIFHE2JUGAXPOVRQ","short_pith_number":"pith:NZSYJHRL","canonical_record":{"source":{"id":"1007.2319","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2010-07-14T13:02:16Z","cross_cats_sorted":[],"title_canon_sha256":"ddccc17eae94f0e7c6e789a8fe97decfd4103c178f43f34bb78efc64a9710fde","abstract_canon_sha256":"4e24d43fdc6fea667ccd538c05c55f2b8d7570e58420477b1500f70f23642565"},"schema_version":"1.0"},"canonical_sha256":"6e65849e2bc3d8829c9a4d0c0bbdd58c2e39faf65b5ee9790017972a38639371","source":{"kind":"arxiv","id":"1007.2319","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1007.2319","created_at":"2026-05-18T02:33:09Z"},{"alias_kind":"arxiv_version","alias_value":"1007.2319v1","created_at":"2026-05-18T02:33:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1007.2319","created_at":"2026-05-18T02:33:09Z"},{"alias_kind":"pith_short_12","alias_value":"NZSYJHRLYPMI","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_16","alias_value":"NZSYJHRLYPMIFHE2","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_8","alias_value":"NZSYJHRL","created_at":"2026-05-18T12:26:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:NZSYJHRLYPMIFHE2JUGAXPOVRQ","target":"record","payload":{"canonical_record":{"source":{"id":"1007.2319","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2010-07-14T13:02:16Z","cross_cats_sorted":[],"title_canon_sha256":"ddccc17eae94f0e7c6e789a8fe97decfd4103c178f43f34bb78efc64a9710fde","abstract_canon_sha256":"4e24d43fdc6fea667ccd538c05c55f2b8d7570e58420477b1500f70f23642565"},"schema_version":"1.0"},"canonical_sha256":"6e65849e2bc3d8829c9a4d0c0bbdd58c2e39faf65b5ee9790017972a38639371","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:33:09.222064Z","signature_b64":"Hs1Pnn8sCwZZJZVk0jWRLt+gkEpyo+nCPk7xuiK6423yht8X7MuVP2YR2MswT7+mOj7i770x1uqr2td/hGVTAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6e65849e2bc3d8829c9a4d0c0bbdd58c2e39faf65b5ee9790017972a38639371","last_reissued_at":"2026-05-18T02:33:09.221588Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:33:09.221588Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1007.2319","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":"2026-05-18T02:33:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AqdtRuZCr1rd4z/cF42XJ43wBsOLcNw1KzTWnzN3DnfmadxxydZT/SCwKR/DxJLYBuFgXw7S8ojTmK2RvIOlAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T18:56:27.696227Z"},"content_sha256":"dd3ce531c81a40ea7b697fdf7373309edced88dd772d44af37644932b34589a8","schema_version":"1.0","event_id":"sha256:dd3ce531c81a40ea7b697fdf7373309edced88dd772d44af37644932b34589a8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:NZSYJHRLYPMIFHE2JUGAXPOVRQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"$\\alpha$ particles and the pasta phase","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"C. C. Barros Jr., C. Provid\\^encia, D. P. Menezes, S. S. Avancini","submitted_at":"2010-07-14T13:02:16Z","abstract_excerpt":"The effects of the $\\alpha$ particles in nuclear matter at low densities are investigated within three different parametrizations of relativistic models at finite temperature. Both homogeneous and inhomogeneous matter (pasta phase) are described for neutral nuclear matter with fixed proton fractions and stellar matter subject to $\\beta$-equilibrium and trapped neutrinos. In homogeneous matter, $\\alpha$ particles are only present at densities below 0.02 fm$^{-3}$ and their presence decreases with the increase of the temperature and, for a fixed temperature, the $\\alpha$ particle fraction decrea"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1007.2319","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":"2026-05-18T02:33:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pbm7ewyovTdPUb0InJmm+2uoKrxYLccwCmvpBnnZI02Ow18HbxXbtNVUdPcGKwPOMH2BfNddx2zD8CKgSY1bBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T18:56:27.696588Z"},"content_sha256":"dd3c2e56306df8b4c7207340862f9b076eaace46169406572de4260e603cd0c6","schema_version":"1.0","event_id":"sha256:dd3c2e56306df8b4c7207340862f9b076eaace46169406572de4260e603cd0c6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NZSYJHRLYPMIFHE2JUGAXPOVRQ/bundle.json","state_url":"https://pith.science/pith/NZSYJHRLYPMIFHE2JUGAXPOVRQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NZSYJHRLYPMIFHE2JUGAXPOVRQ/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":"2026-06-04T18:56:27Z","links":{"resolver":"https://pith.science/pith/NZSYJHRLYPMIFHE2JUGAXPOVRQ","bundle":"https://pith.science/pith/NZSYJHRLYPMIFHE2JUGAXPOVRQ/bundle.json","state":"https://pith.science/pith/NZSYJHRLYPMIFHE2JUGAXPOVRQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NZSYJHRLYPMIFHE2JUGAXPOVRQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:NZSYJHRLYPMIFHE2JUGAXPOVRQ","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":"4e24d43fdc6fea667ccd538c05c55f2b8d7570e58420477b1500f70f23642565","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2010-07-14T13:02:16Z","title_canon_sha256":"ddccc17eae94f0e7c6e789a8fe97decfd4103c178f43f34bb78efc64a9710fde"},"schema_version":"1.0","source":{"id":"1007.2319","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1007.2319","created_at":"2026-05-18T02:33:09Z"},{"alias_kind":"arxiv_version","alias_value":"1007.2319v1","created_at":"2026-05-18T02:33:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1007.2319","created_at":"2026-05-18T02:33:09Z"},{"alias_kind":"pith_short_12","alias_value":"NZSYJHRLYPMI","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_16","alias_value":"NZSYJHRLYPMIFHE2","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_8","alias_value":"NZSYJHRL","created_at":"2026-05-18T12:26:12Z"}],"graph_snapshots":[{"event_id":"sha256:dd3c2e56306df8b4c7207340862f9b076eaace46169406572de4260e603cd0c6","target":"graph","created_at":"2026-05-18T02:33:09Z","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":"The effects of the $\\alpha$ particles in nuclear matter at low densities are investigated within three different parametrizations of relativistic models at finite temperature. Both homogeneous and inhomogeneous matter (pasta phase) are described for neutral nuclear matter with fixed proton fractions and stellar matter subject to $\\beta$-equilibrium and trapped neutrinos. In homogeneous matter, $\\alpha$ particles are only present at densities below 0.02 fm$^{-3}$ and their presence decreases with the increase of the temperature and, for a fixed temperature, the $\\alpha$ particle fraction decrea","authors_text":"C. C. Barros Jr., C. Provid\\^encia, D. P. Menezes, S. S. Avancini","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2010-07-14T13:02:16Z","title":"$\\alpha$ particles and the pasta phase"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1007.2319","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:dd3ce531c81a40ea7b697fdf7373309edced88dd772d44af37644932b34589a8","target":"record","created_at":"2026-05-18T02:33:09Z","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":"4e24d43fdc6fea667ccd538c05c55f2b8d7570e58420477b1500f70f23642565","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2010-07-14T13:02:16Z","title_canon_sha256":"ddccc17eae94f0e7c6e789a8fe97decfd4103c178f43f34bb78efc64a9710fde"},"schema_version":"1.0","source":{"id":"1007.2319","kind":"arxiv","version":1}},"canonical_sha256":"6e65849e2bc3d8829c9a4d0c0bbdd58c2e39faf65b5ee9790017972a38639371","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6e65849e2bc3d8829c9a4d0c0bbdd58c2e39faf65b5ee9790017972a38639371","first_computed_at":"2026-05-18T02:33:09.221588Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:33:09.221588Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Hs1Pnn8sCwZZJZVk0jWRLt+gkEpyo+nCPk7xuiK6423yht8X7MuVP2YR2MswT7+mOj7i770x1uqr2td/hGVTAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:33:09.222064Z","signed_message":"canonical_sha256_bytes"},"source_id":"1007.2319","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dd3ce531c81a40ea7b697fdf7373309edced88dd772d44af37644932b34589a8","sha256:dd3c2e56306df8b4c7207340862f9b076eaace46169406572de4260e603cd0c6"],"state_sha256":"228ca8467efae724b499d673c518fbbcfce8d05303c5c08551c0e34aae14cb09"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XZ8x2k3CXUEgOgnadS7L+lv56ODdzTXjJ1SB6F+j223jvjAD0HIH9T+ZkMat9/sgxX3eFSxdRSVKP6hwh8GwAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T18:56:27.698600Z","bundle_sha256":"0e99692e130d13d351adfd28f962993fddd334331cac8860462fd8aa4b9f1705"}}