{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2004:6IPOVWIK5X6ELPFAY7S57MIW3X","short_pith_number":"pith:6IPOVWIK","canonical_record":{"source":{"id":"nucl-th/0405051","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"nucl-th","submitted_at":"2004-05-19T18:02:03Z","cross_cats_sorted":["nucl-ex","physics.atom-ph"],"title_canon_sha256":"0910d95d9f9ea777b9176895d8e9f3909added789d06105a188b7d7c9c809f07","abstract_canon_sha256":"b1737516de1abcb78f0c1f8a7060118e8d571b50e29ee9b94d52c1582f56faa1"},"schema_version":"1.0"},"canonical_sha256":"f21eead90aedfc45bca0c7e5dfb116ddcd4671c3ed3958d059bba22292c07b02","source":{"kind":"arxiv","id":"nucl-th/0405051","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"nucl-th/0405051","created_at":"2026-05-18T02:35:32Z"},{"alias_kind":"arxiv_version","alias_value":"nucl-th/0405051v1","created_at":"2026-05-18T02:35:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.nucl-th/0405051","created_at":"2026-05-18T02:35:32Z"},{"alias_kind":"pith_short_12","alias_value":"6IPOVWIK5X6E","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"6IPOVWIK5X6ELPFA","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"6IPOVWIK","created_at":"2026-05-18T12:25:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2004:6IPOVWIK5X6ELPFAY7S57MIW3X","target":"record","payload":{"canonical_record":{"source":{"id":"nucl-th/0405051","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"nucl-th","submitted_at":"2004-05-19T18:02:03Z","cross_cats_sorted":["nucl-ex","physics.atom-ph"],"title_canon_sha256":"0910d95d9f9ea777b9176895d8e9f3909added789d06105a188b7d7c9c809f07","abstract_canon_sha256":"b1737516de1abcb78f0c1f8a7060118e8d571b50e29ee9b94d52c1582f56faa1"},"schema_version":"1.0"},"canonical_sha256":"f21eead90aedfc45bca0c7e5dfb116ddcd4671c3ed3958d059bba22292c07b02","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:35:32.065704Z","signature_b64":"EHK9cei1EspAGyIOc17lgjFB9xQvRCsknx7U3WMQFzyPvKsp5/zp6jJwXpIhWI9dLqIpHW90FNV0WhFEYeK+Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f21eead90aedfc45bca0c7e5dfb116ddcd4671c3ed3958d059bba22292c07b02","last_reissued_at":"2026-05-18T02:35:32.065337Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:35:32.065337Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"nucl-th/0405051","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":"2026-05-18T02:35:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AwjZCrXu3EgNo93SN6UFJjnGrPNJRUxQung/TXhmlF33y4W5fne16HSDjQFzvmQIpD3iq7Ik5slJFvJLaWgZDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T20:48:15.362514Z"},"content_sha256":"18b4cfbef88250c75daaec2b5f6894895686d0f51b0a9b55947cbda01b00313d","schema_version":"1.0","event_id":"sha256:18b4cfbef88250c75daaec2b5f6894895686d0f51b0a9b55947cbda01b00313d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2004:6IPOVWIK5X6ELPFAY7S57MIW3X","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nuclear structure of 178Hf related to the spin-16, 31-year isomer","license":"","headline":"","cross_cats":["nucl-ex","physics.atom-ph"],"primary_cat":"nucl-th","authors_text":"En-Guang Zhao, Gui-Lu Long, Philip M. Walker, Xian-Rong Zhou, Yang Sun","submitted_at":"2004-05-19T18:02:03Z","abstract_excerpt":"The projected shell model is used to study the multi-quasiparticle and collective excitations of 178Hf. With an axially symmetric basis, the spin-16 isomer at 2.4 MeV appears to be well separated in energy/spin space from other configurations. However, projected energy surface calculations suggest that 178Hf has significant softness to axially asymmetric shapes, which can strongly modify the level distribution. The implications for photodeexitation of the isomer are discussed."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-th/0405051","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":"2026-05-18T02:35:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Nzgp6swrLVJpeppzflqaDnufuZvUCoyzIqnPL/YuCQer7NnlfNIWxtnAZ2PZVa9CpcTG8w6uKcmc1Z+QZZ66Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T20:48:15.363245Z"},"content_sha256":"d4ea0b1ba68134986e2f608431203956ddd6bc8acbe2f16f46c56db7a4b1c6af","schema_version":"1.0","event_id":"sha256:d4ea0b1ba68134986e2f608431203956ddd6bc8acbe2f16f46c56db7a4b1c6af"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6IPOVWIK5X6ELPFAY7S57MIW3X/bundle.json","state_url":"https://pith.science/pith/6IPOVWIK5X6ELPFAY7S57MIW3X/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6IPOVWIK5X6ELPFAY7S57MIW3X/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":"2026-06-04T20:48:15Z","links":{"resolver":"https://pith.science/pith/6IPOVWIK5X6ELPFAY7S57MIW3X","bundle":"https://pith.science/pith/6IPOVWIK5X6ELPFAY7S57MIW3X/bundle.json","state":"https://pith.science/pith/6IPOVWIK5X6ELPFAY7S57MIW3X/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6IPOVWIK5X6ELPFAY7S57MIW3X/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2004:6IPOVWIK5X6ELPFAY7S57MIW3X","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":"b1737516de1abcb78f0c1f8a7060118e8d571b50e29ee9b94d52c1582f56faa1","cross_cats_sorted":["nucl-ex","physics.atom-ph"],"license":"","primary_cat":"nucl-th","submitted_at":"2004-05-19T18:02:03Z","title_canon_sha256":"0910d95d9f9ea777b9176895d8e9f3909added789d06105a188b7d7c9c809f07"},"schema_version":"1.0","source":{"id":"nucl-th/0405051","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"nucl-th/0405051","created_at":"2026-05-18T02:35:32Z"},{"alias_kind":"arxiv_version","alias_value":"nucl-th/0405051v1","created_at":"2026-05-18T02:35:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.nucl-th/0405051","created_at":"2026-05-18T02:35:32Z"},{"alias_kind":"pith_short_12","alias_value":"6IPOVWIK5X6E","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"6IPOVWIK5X6ELPFA","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"6IPOVWIK","created_at":"2026-05-18T12:25:52Z"}],"graph_snapshots":[{"event_id":"sha256:d4ea0b1ba68134986e2f608431203956ddd6bc8acbe2f16f46c56db7a4b1c6af","target":"graph","created_at":"2026-05-18T02:35:32Z","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 projected shell model is used to study the multi-quasiparticle and collective excitations of 178Hf. With an axially symmetric basis, the spin-16 isomer at 2.4 MeV appears to be well separated in energy/spin space from other configurations. However, projected energy surface calculations suggest that 178Hf has significant softness to axially asymmetric shapes, which can strongly modify the level distribution. The implications for photodeexitation of the isomer are discussed.","authors_text":"En-Guang Zhao, Gui-Lu Long, Philip M. Walker, Xian-Rong Zhou, Yang Sun","cross_cats":["nucl-ex","physics.atom-ph"],"headline":"","license":"","primary_cat":"nucl-th","submitted_at":"2004-05-19T18:02:03Z","title":"Nuclear structure of 178Hf related to the spin-16, 31-year isomer"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-th/0405051","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":"sha256:18b4cfbef88250c75daaec2b5f6894895686d0f51b0a9b55947cbda01b00313d","target":"record","created_at":"2026-05-18T02:35:32Z","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":"b1737516de1abcb78f0c1f8a7060118e8d571b50e29ee9b94d52c1582f56faa1","cross_cats_sorted":["nucl-ex","physics.atom-ph"],"license":"","primary_cat":"nucl-th","submitted_at":"2004-05-19T18:02:03Z","title_canon_sha256":"0910d95d9f9ea777b9176895d8e9f3909added789d06105a188b7d7c9c809f07"},"schema_version":"1.0","source":{"id":"nucl-th/0405051","kind":"arxiv","version":1}},"canonical_sha256":"f21eead90aedfc45bca0c7e5dfb116ddcd4671c3ed3958d059bba22292c07b02","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f21eead90aedfc45bca0c7e5dfb116ddcd4671c3ed3958d059bba22292c07b02","first_computed_at":"2026-05-18T02:35:32.065337Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:35:32.065337Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"EHK9cei1EspAGyIOc17lgjFB9xQvRCsknx7U3WMQFzyPvKsp5/zp6jJwXpIhWI9dLqIpHW90FNV0WhFEYeK+Ag==","signature_status":"signed_v1","signed_at":"2026-05-18T02:35:32.065704Z","signed_message":"canonical_sha256_bytes"},"source_id":"nucl-th/0405051","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:18b4cfbef88250c75daaec2b5f6894895686d0f51b0a9b55947cbda01b00313d","sha256:d4ea0b1ba68134986e2f608431203956ddd6bc8acbe2f16f46c56db7a4b1c6af"],"state_sha256":"dcf049463c78598306b2e7fafd646e72a0353a00ef540bb82013dd2d813a8f03"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Korr3jh1cAc/4pyVonjJeZ8QXIaVNU0akO8arwgDPjbYUGbb7uLWHO81OBYo8r/58cZyzm2Hif1sdJSVu1WNAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T20:48:15.367327Z","bundle_sha256":"ca38ee807cfa184feb5d1a422245dc7b614949598b4cc219ee8e8d832309c313"}}