{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:ZKJC2YBQRL5DAEN6DQP2LBVUQT","short_pith_number":"pith:ZKJC2YBQ","canonical_record":{"source":{"id":"cond-mat/0701117","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2007-01-05T19:55:11Z","cross_cats_sorted":[],"title_canon_sha256":"a56540f7915efcd84748e20aa514f62072941ad89502a1e6bd8c00cc85c7db48","abstract_canon_sha256":"3eb529ed0836dacbc71ada2cf602381f6ca557b78eee31f204c3ea3a859a6a22"},"schema_version":"1.0"},"canonical_sha256":"ca922d60308afa3011be1c1fa586b484ee3b0bfed79706f5f33db6fb7b277838","source":{"kind":"arxiv","id":"cond-mat/0701117","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0701117","created_at":"2026-07-04T17:07:51Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0701117v1","created_at":"2026-07-04T17:07:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0701117","created_at":"2026-07-04T17:07:51Z"},{"alias_kind":"pith_short_12","alias_value":"ZKJC2YBQRL5D","created_at":"2026-07-04T17:07:51Z"},{"alias_kind":"pith_short_16","alias_value":"ZKJC2YBQRL5DAEN6","created_at":"2026-07-04T17:07:51Z"},{"alias_kind":"pith_short_8","alias_value":"ZKJC2YBQ","created_at":"2026-07-04T17:07:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:ZKJC2YBQRL5DAEN6DQP2LBVUQT","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/0701117","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2007-01-05T19:55:11Z","cross_cats_sorted":[],"title_canon_sha256":"a56540f7915efcd84748e20aa514f62072941ad89502a1e6bd8c00cc85c7db48","abstract_canon_sha256":"3eb529ed0836dacbc71ada2cf602381f6ca557b78eee31f204c3ea3a859a6a22"},"schema_version":"1.0"},"canonical_sha256":"ca922d60308afa3011be1c1fa586b484ee3b0bfed79706f5f33db6fb7b277838","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T17:07:51.776718Z","signature_b64":"SzIGlsHTctzYYB8fwCTYlbqWdAa7LdKG/jm/i0EexP04UPUzPlAvBqsfTsRC85k0AMlb+foDqbPeV+NhfhuVDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ca922d60308afa3011be1c1fa586b484ee3b0bfed79706f5f33db6fb7b277838","last_reissued_at":"2026-07-04T17:07:51.776331Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T17:07:51.776331Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/0701117","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":"2026-07-04T17:07:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uGfCnuUyNTF1fJTGcO/4ulUWpc1/KYlpEUBA0QGccJ4sk7njTUUhT3v2F0hPWVh0vVAmI4bpZdg3jgLLZKnfCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-17T02:40:06.795091Z"},"content_sha256":"bfebb71948bd8176f20aa38fe16b0585e952e0e724fd01970de35576a448bb67","schema_version":"1.0","event_id":"sha256:bfebb71948bd8176f20aa38fe16b0585e952e0e724fd01970de35576a448bb67"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:ZKJC2YBQRL5DAEN6DQP2LBVUQT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Merging of single-particle levels and non-Fermi-liquid behavior of finite Fermi systems","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Haochen Li, J.W.Clark, M.V.Zverev, V.A.Khodel","submitted_at":"2007-01-05T19:55:11Z","abstract_excerpt":"We examine the problem of finite Fermi systems having a degenerate single-particle spectrum and show that the Landau approach, applied to such a system, admits the possibility of merging single-particle levels. It is demonstrated that the opportunity for this behavior is widespread in quantum many-body systems. The salient feature of the phenomenon is the occurrence of nonintegral quasiparticle occupation numbers, leading to a radical alteration of the standard quasiparticle picture. Implications of this alteration are considered for nuclear, atomic, and solid-state systems."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0701117","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/cond-mat/0701117/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T17:07:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jJGHon6Qftu0ogK5QVaED32qcFTypn54cglm/7mcOT8JTKYOFWLsjPeZg7PjXfOHRXr+brlqR6lP1KH3E9+wBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-17T02:40:06.795482Z"},"content_sha256":"4e69af12211520e5a21b2d670428f382dfe66cb54d22144516547f496bb78f47","schema_version":"1.0","event_id":"sha256:4e69af12211520e5a21b2d670428f382dfe66cb54d22144516547f496bb78f47"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZKJC2YBQRL5DAEN6DQP2LBVUQT/bundle.json","state_url":"https://pith.science/pith/ZKJC2YBQRL5DAEN6DQP2LBVUQT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZKJC2YBQRL5DAEN6DQP2LBVUQT/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":"2026-07-17T02:40:06Z","links":{"resolver":"https://pith.science/pith/ZKJC2YBQRL5DAEN6DQP2LBVUQT","bundle":"https://pith.science/pith/ZKJC2YBQRL5DAEN6DQP2LBVUQT/bundle.json","state":"https://pith.science/pith/ZKJC2YBQRL5DAEN6DQP2LBVUQT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZKJC2YBQRL5DAEN6DQP2LBVUQT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:ZKJC2YBQRL5DAEN6DQP2LBVUQT","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":"3eb529ed0836dacbc71ada2cf602381f6ca557b78eee31f204c3ea3a859a6a22","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2007-01-05T19:55:11Z","title_canon_sha256":"a56540f7915efcd84748e20aa514f62072941ad89502a1e6bd8c00cc85c7db48"},"schema_version":"1.0","source":{"id":"cond-mat/0701117","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0701117","created_at":"2026-07-04T17:07:51Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0701117v1","created_at":"2026-07-04T17:07:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0701117","created_at":"2026-07-04T17:07:51Z"},{"alias_kind":"pith_short_12","alias_value":"ZKJC2YBQRL5D","created_at":"2026-07-04T17:07:51Z"},{"alias_kind":"pith_short_16","alias_value":"ZKJC2YBQRL5DAEN6","created_at":"2026-07-04T17:07:51Z"},{"alias_kind":"pith_short_8","alias_value":"ZKJC2YBQ","created_at":"2026-07-04T17:07:51Z"}],"graph_snapshots":[{"event_id":"sha256:4e69af12211520e5a21b2d670428f382dfe66cb54d22144516547f496bb78f47","target":"graph","created_at":"2026-07-04T17:07:51Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/cond-mat/0701117/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We examine the problem of finite Fermi systems having a degenerate single-particle spectrum and show that the Landau approach, applied to such a system, admits the possibility of merging single-particle levels. It is demonstrated that the opportunity for this behavior is widespread in quantum many-body systems. The salient feature of the phenomenon is the occurrence of nonintegral quasiparticle occupation numbers, leading to a radical alteration of the standard quasiparticle picture. Implications of this alteration are considered for nuclear, atomic, and solid-state systems.","authors_text":"Haochen Li, J.W.Clark, M.V.Zverev, V.A.Khodel","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.str-el","submitted_at":"2007-01-05T19:55:11Z","title":"Merging of single-particle levels and non-Fermi-liquid behavior of finite Fermi systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0701117","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:bfebb71948bd8176f20aa38fe16b0585e952e0e724fd01970de35576a448bb67","target":"record","created_at":"2026-07-04T17:07:51Z","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":"3eb529ed0836dacbc71ada2cf602381f6ca557b78eee31f204c3ea3a859a6a22","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2007-01-05T19:55:11Z","title_canon_sha256":"a56540f7915efcd84748e20aa514f62072941ad89502a1e6bd8c00cc85c7db48"},"schema_version":"1.0","source":{"id":"cond-mat/0701117","kind":"arxiv","version":1}},"canonical_sha256":"ca922d60308afa3011be1c1fa586b484ee3b0bfed79706f5f33db6fb7b277838","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ca922d60308afa3011be1c1fa586b484ee3b0bfed79706f5f33db6fb7b277838","first_computed_at":"2026-07-04T17:07:51.776331Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:07:51.776331Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SzIGlsHTctzYYB8fwCTYlbqWdAa7LdKG/jm/i0EexP04UPUzPlAvBqsfTsRC85k0AMlb+foDqbPeV+NhfhuVDA==","signature_status":"signed_v1","signed_at":"2026-07-04T17:07:51.776718Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0701117","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bfebb71948bd8176f20aa38fe16b0585e952e0e724fd01970de35576a448bb67","sha256:4e69af12211520e5a21b2d670428f382dfe66cb54d22144516547f496bb78f47"],"state_sha256":"3bea119dc0e9d22bce96c99034dbc7d8a8b4c50fc1c1ff74a5c652b52cadca22"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bL343zn5dY9eE3bxJ8dL8ZkeQqZ+DcjzZgGW9/1z23JYBnhJlIr7tv/mCZNemBQbcxvwWB8bgxllk/KVvMB3Dw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-17T02:40:06.797378Z","bundle_sha256":"ba5d47cc6a4dc0043097737bd566efd8253b2d9194c4e32c4d886fbf7958c914"}}