{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:PSAIW4ZZYI4OT5GLCOSV2XUQ5E","short_pith_number":"pith:PSAIW4ZZ","canonical_record":{"source":{"id":"1202.6290","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2012-02-28T17:19:43Z","cross_cats_sorted":[],"title_canon_sha256":"1061ae53fabcda20952c853e1a2d01d7a4fb753b60ee3c0a1d84d7977770d8a9","abstract_canon_sha256":"8c6249cd1ab3538d0bc9150a767172699e2711571a9c411d925b0bfce7a8afc3"},"schema_version":"1.0"},"canonical_sha256":"7c808b7339c238e9f4cb13a55d5e90e91efde0bf59893d32e3d9372e2f68450b","source":{"kind":"arxiv","id":"1202.6290","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.6290","created_at":"2026-05-18T01:58:18Z"},{"alias_kind":"arxiv_version","alias_value":"1202.6290v1","created_at":"2026-05-18T01:58:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.6290","created_at":"2026-05-18T01:58:18Z"},{"alias_kind":"pith_short_12","alias_value":"PSAIW4ZZYI4O","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_16","alias_value":"PSAIW4ZZYI4OT5GL","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_8","alias_value":"PSAIW4ZZ","created_at":"2026-05-18T12:27:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:PSAIW4ZZYI4OT5GLCOSV2XUQ5E","target":"record","payload":{"canonical_record":{"source":{"id":"1202.6290","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2012-02-28T17:19:43Z","cross_cats_sorted":[],"title_canon_sha256":"1061ae53fabcda20952c853e1a2d01d7a4fb753b60ee3c0a1d84d7977770d8a9","abstract_canon_sha256":"8c6249cd1ab3538d0bc9150a767172699e2711571a9c411d925b0bfce7a8afc3"},"schema_version":"1.0"},"canonical_sha256":"7c808b7339c238e9f4cb13a55d5e90e91efde0bf59893d32e3d9372e2f68450b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:58:18.671915Z","signature_b64":"NLm0acZjF+2uGosIkFztCkmRLtR7JwUvmB1aIZbKhIhs01XisACwaQHpTfa35dkxi3JDI0n/IrwrLhRKg5T4Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7c808b7339c238e9f4cb13a55d5e90e91efde0bf59893d32e3d9372e2f68450b","last_reissued_at":"2026-05-18T01:58:18.671350Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:58:18.671350Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1202.6290","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":"2026-05-18T01:58:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FNEyLROgdYKW5Px+cBSn8SUcuWsM0QvZ71uU1jBHv0BzQOYgOoUjW5okzSM5JuiFcwXFsqpGXiPDlVX7fsCnCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T15:42:10.095843Z"},"content_sha256":"b627b18d76d33794dff4d412fe728cfee2df744f6da2d20c1cdae0a545e25773","schema_version":"1.0","event_id":"sha256:b627b18d76d33794dff4d412fe728cfee2df744f6da2d20c1cdae0a545e25773"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:PSAIW4ZZYI4OT5GLCOSV2XUQ5E","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On the origin of nuclear clustering","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"J. Okolowicz, M. Ploszajczak, W. Nazarewicz","submitted_at":"2012-02-28T17:19:43Z","abstract_excerpt":"Clustering is one of the most complex phenomena known to the structure of atomic nuclei. A comprehensive description of this ubiquitous phenomenon goes beyond standard shell model and cluster model frameworks. We argue that clustering is a consequence of an openness of the nuclear many-body system. To illustrate this point, we study the near-threshold behavior of exceptional points in ^16 Ne and ^24 S."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.6290","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":"2026-05-18T01:58:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DfBCJO6dq7vmPerKQN5/LqLJN+Bu71KckzYNSYuvi00VvdRjMWLWbCthmV0DkvDOktDfniTb4oAIs/N1zTEJBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T15:42:10.096246Z"},"content_sha256":"46619bc2e3a3625b725b02b5d6bd5a78ce37601d6fcc1653de8b8a1c46099ce6","schema_version":"1.0","event_id":"sha256:46619bc2e3a3625b725b02b5d6bd5a78ce37601d6fcc1653de8b8a1c46099ce6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PSAIW4ZZYI4OT5GLCOSV2XUQ5E/bundle.json","state_url":"https://pith.science/pith/PSAIW4ZZYI4OT5GLCOSV2XUQ5E/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PSAIW4ZZYI4OT5GLCOSV2XUQ5E/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":"2026-05-26T15:42:10Z","links":{"resolver":"https://pith.science/pith/PSAIW4ZZYI4OT5GLCOSV2XUQ5E","bundle":"https://pith.science/pith/PSAIW4ZZYI4OT5GLCOSV2XUQ5E/bundle.json","state":"https://pith.science/pith/PSAIW4ZZYI4OT5GLCOSV2XUQ5E/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PSAIW4ZZYI4OT5GLCOSV2XUQ5E/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:PSAIW4ZZYI4OT5GLCOSV2XUQ5E","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":"8c6249cd1ab3538d0bc9150a767172699e2711571a9c411d925b0bfce7a8afc3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2012-02-28T17:19:43Z","title_canon_sha256":"1061ae53fabcda20952c853e1a2d01d7a4fb753b60ee3c0a1d84d7977770d8a9"},"schema_version":"1.0","source":{"id":"1202.6290","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.6290","created_at":"2026-05-18T01:58:18Z"},{"alias_kind":"arxiv_version","alias_value":"1202.6290v1","created_at":"2026-05-18T01:58:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.6290","created_at":"2026-05-18T01:58:18Z"},{"alias_kind":"pith_short_12","alias_value":"PSAIW4ZZYI4O","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_16","alias_value":"PSAIW4ZZYI4OT5GL","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_8","alias_value":"PSAIW4ZZ","created_at":"2026-05-18T12:27:18Z"}],"graph_snapshots":[{"event_id":"sha256:46619bc2e3a3625b725b02b5d6bd5a78ce37601d6fcc1653de8b8a1c46099ce6","target":"graph","created_at":"2026-05-18T01:58:18Z","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":"Clustering is one of the most complex phenomena known to the structure of atomic nuclei. A comprehensive description of this ubiquitous phenomenon goes beyond standard shell model and cluster model frameworks. We argue that clustering is a consequence of an openness of the nuclear many-body system. To illustrate this point, we study the near-threshold behavior of exceptional points in ^16 Ne and ^24 S.","authors_text":"J. Okolowicz, M. Ploszajczak, W. Nazarewicz","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2012-02-28T17:19:43Z","title":"On the origin of nuclear clustering"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.6290","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:b627b18d76d33794dff4d412fe728cfee2df744f6da2d20c1cdae0a545e25773","target":"record","created_at":"2026-05-18T01:58:18Z","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":"8c6249cd1ab3538d0bc9150a767172699e2711571a9c411d925b0bfce7a8afc3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2012-02-28T17:19:43Z","title_canon_sha256":"1061ae53fabcda20952c853e1a2d01d7a4fb753b60ee3c0a1d84d7977770d8a9"},"schema_version":"1.0","source":{"id":"1202.6290","kind":"arxiv","version":1}},"canonical_sha256":"7c808b7339c238e9f4cb13a55d5e90e91efde0bf59893d32e3d9372e2f68450b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7c808b7339c238e9f4cb13a55d5e90e91efde0bf59893d32e3d9372e2f68450b","first_computed_at":"2026-05-18T01:58:18.671350Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:18.671350Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NLm0acZjF+2uGosIkFztCkmRLtR7JwUvmB1aIZbKhIhs01XisACwaQHpTfa35dkxi3JDI0n/IrwrLhRKg5T4Cg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:18.671915Z","signed_message":"canonical_sha256_bytes"},"source_id":"1202.6290","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b627b18d76d33794dff4d412fe728cfee2df744f6da2d20c1cdae0a545e25773","sha256:46619bc2e3a3625b725b02b5d6bd5a78ce37601d6fcc1653de8b8a1c46099ce6"],"state_sha256":"21b657f2221174cda46162a1e8f9d3f93a652bf6fc31627d918ee20955ecd5cb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AZIVUhJTs1WOkFE+4D2prLgs1HJh8d1Fo1/+hEkf7xZsRMZOLiMulw1v+ZNzFe0pWYSc3Q2ptuH3645Yde5OCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T15:42:10.099663Z","bundle_sha256":"29a14511c4545732b982e01f387feb019dde928f51121d41a9088176f9d207eb"}}