{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2021:M5Q2JUKQIG62A537NKR4SARGI2","short_pith_number":"pith:M5Q2JUKQ","schema_version":"1.0","canonical_sha256":"6761a4d15041bda0777f6aa3c9022646b0dc4e2755001b1bfabcf3f5bf9754d4","source":{"kind":"arxiv","id":"2103.01478","version":3},"attestation_state":"computed","paper":{"title":"Unbound spectra of neutron-rich oxygen isotopes predicted by the Gamow shell model","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"F. R. Xu, J. G. Li, N. Michel, W. Zuo","submitted_at":"2021-03-02T05:25:00Z","abstract_excerpt":"The Gamow shell model has shown to efficiently describe weakly bound and unbound nuclear systems, as internucleon correlations and continuum coupling are both taken into account in this model. In the present work, we study neutron-dripline oxygen isotopes. It is hereby demonstrated that the presence of continuum coupling is important for the description of oxygen isotopes at dripline, and especially to assess the eventual bound or unbound character of $^{28}$O. Our results suggest that the ground state of $^{28}$O is weakly unbound and is similar to the narrow resonant $^{26}$O ground state. P"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2103.01478","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2021-03-02T05:25:00Z","cross_cats_sorted":[],"title_canon_sha256":"8979732a16ea09a6385254659a45425b44ec04bb1a957a077f1eaa3b88bbb8a9","abstract_canon_sha256":"9d10513725b4edf939cde6744218e66c61147b45fb54f7f80a13ae8e9d4d3454"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:21:01.724578Z","signature_b64":"0fATIaxX8hwqc7yc6t1s+061w6ZQmqS8KR+8NLOT9Z31iGHvUn9Vk6+9XvvStsveRWyHPEzxfMu87FGkoV6/AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6761a4d15041bda0777f6aa3c9022646b0dc4e2755001b1bfabcf3f5bf9754d4","last_reissued_at":"2026-07-05T02:21:01.724159Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:21:01.724159Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Unbound spectra of neutron-rich oxygen isotopes predicted by the Gamow shell model","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"F. R. Xu, J. G. Li, N. Michel, W. Zuo","submitted_at":"2021-03-02T05:25:00Z","abstract_excerpt":"The Gamow shell model has shown to efficiently describe weakly bound and unbound nuclear systems, as internucleon correlations and continuum coupling are both taken into account in this model. In the present work, we study neutron-dripline oxygen isotopes. It is hereby demonstrated that the presence of continuum coupling is important for the description of oxygen isotopes at dripline, and especially to assess the eventual bound or unbound character of $^{28}$O. Our results suggest that the ground state of $^{28}$O is weakly unbound and is similar to the narrow resonant $^{26}$O ground state. P"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2103.01478","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2103.01478/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2103.01478","created_at":"2026-07-05T02:21:01.724214+00:00"},{"alias_kind":"arxiv_version","alias_value":"2103.01478v3","created_at":"2026-07-05T02:21:01.724214+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2103.01478","created_at":"2026-07-05T02:21:01.724214+00:00"},{"alias_kind":"pith_short_12","alias_value":"M5Q2JUKQIG62","created_at":"2026-07-05T02:21:01.724214+00:00"},{"alias_kind":"pith_short_16","alias_value":"M5Q2JUKQIG62A537","created_at":"2026-07-05T02:21:01.724214+00:00"},{"alias_kind":"pith_short_8","alias_value":"M5Q2JUKQ","created_at":"2026-07-05T02:21:01.724214+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/M5Q2JUKQIG62A537NKR4SARGI2","json":"https://pith.science/pith/M5Q2JUKQIG62A537NKR4SARGI2.json","graph_json":"https://pith.science/api/pith-number/M5Q2JUKQIG62A537NKR4SARGI2/graph.json","events_json":"https://pith.science/api/pith-number/M5Q2JUKQIG62A537NKR4SARGI2/events.json","paper":"https://pith.science/paper/M5Q2JUKQ"},"agent_actions":{"view_html":"https://pith.science/pith/M5Q2JUKQIG62A537NKR4SARGI2","download_json":"https://pith.science/pith/M5Q2JUKQIG62A537NKR4SARGI2.json","view_paper":"https://pith.science/paper/M5Q2JUKQ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2103.01478&json=true","fetch_graph":"https://pith.science/api/pith-number/M5Q2JUKQIG62A537NKR4SARGI2/graph.json","fetch_events":"https://pith.science/api/pith-number/M5Q2JUKQIG62A537NKR4SARGI2/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/M5Q2JUKQIG62A537NKR4SARGI2/action/timestamp_anchor","attest_storage":"https://pith.science/pith/M5Q2JUKQIG62A537NKR4SARGI2/action/storage_attestation","attest_author":"https://pith.science/pith/M5Q2JUKQIG62A537NKR4SARGI2/action/author_attestation","sign_citation":"https://pith.science/pith/M5Q2JUKQIG62A537NKR4SARGI2/action/citation_signature","submit_replication":"https://pith.science/pith/M5Q2JUKQIG62A537NKR4SARGI2/action/replication_record"}},"created_at":"2026-07-05T02:21:01.724214+00:00","updated_at":"2026-07-05T02:21:01.724214+00:00"}