{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2003:X7YSUMAGK4PIVY6S72IIQ3N3GG","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":"9f39c22ca0b03d4c25c32e982a633c9638c89ebbbe38a12286b436083c25c8f1","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2003-07-16T03:49:17Z","title_canon_sha256":"8af386c6dd2942a07c1ad81a10b0a730e030316f22fea839ccd16a03d8338b9b"},"schema_version":"1.0","source":{"id":"cond-mat/0307376","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0307376","created_at":"2026-07-04T16:39:11Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0307376v1","created_at":"2026-07-04T16:39:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0307376","created_at":"2026-07-04T16:39:11Z"},{"alias_kind":"pith_short_12","alias_value":"X7YSUMAGK4PI","created_at":"2026-07-04T16:39:11Z"},{"alias_kind":"pith_short_16","alias_value":"X7YSUMAGK4PIVY6S","created_at":"2026-07-04T16:39:11Z"},{"alias_kind":"pith_short_8","alias_value":"X7YSUMAG","created_at":"2026-07-04T16:39:11Z"}],"graph_snapshots":[{"event_id":"sha256:27d3ac14d47016e87a18e1347b7ca3281f3602127ed79377325389d7d855ab21","target":"graph","created_at":"2026-07-04T16:39:11Z","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/0307376/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The effect of electron correlation (EC) on the electronic structure in MgB$_2$, AlB$_2$ and ZrB$_2$, is studied by examining the partial density of states (PDOS) of B-2$p\\sigma$ and $p\\pi$ orbitals using the polarization dependence of x-ray emission and absorption spectra. The discrepancies between observed and calculated PDOSs cannot be attributed to EC effects. The present results suggest that the EC effect is less than the experimental error ($\\sim$ 0.2 eV), which indirectly supports a scenario that electron-phonon interaction plays an essential role in the occurrence of superconductivity.","authors_text":"A. Yamamoto, D.L. Ederer, E. Kabasawa, H. Aoki, H. Yamazaki, J.D. Denlinger, J. Nakamura, K. Kuroki, M. Watanabe, N. Kimura, N. Yamada, R.C.C. Perera, S. Lee, S. Minakawa, S. Nasubida, S. Otani, S. Shin, S. Tajima, T.A. Callcott, T. Oguchi, Y. Umeda","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2003-07-16T03:49:17Z","title":"Electronic Structure of B-2$p\\sigma$ and $p\\pi$ States in MgB$_2$, AlB$_2$ and ZrB$_2$ Single Crystals"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0307376","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":"sha256:6f44e4833c4e516d82a1dacad84bf7e770ad41a74b74cf06ec033784948feba0","target":"record","created_at":"2026-07-04T16:39:11Z","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":"9f39c22ca0b03d4c25c32e982a633c9638c89ebbbe38a12286b436083c25c8f1","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2003-07-16T03:49:17Z","title_canon_sha256":"8af386c6dd2942a07c1ad81a10b0a730e030316f22fea839ccd16a03d8338b9b"},"schema_version":"1.0","source":{"id":"cond-mat/0307376","kind":"arxiv","version":1}},"canonical_sha256":"bff12a3006571e8ae3d2fe90886dbb3182f0a59bbb58b9565a14521bd2158219","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bff12a3006571e8ae3d2fe90886dbb3182f0a59bbb58b9565a14521bd2158219","first_computed_at":"2026-07-04T16:39:11.081081Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:39:11.081081Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nY6Vyz4C6XnVwoAOe4Q3beH0/5djYs0Ae1t2jTLxJoSxbJ4kVwWwsmcVObs08uU3XuEK/FQW54n1zhkV3h8WCQ==","signature_status":"signed_v1","signed_at":"2026-07-04T16:39:11.081452Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0307376","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6f44e4833c4e516d82a1dacad84bf7e770ad41a74b74cf06ec033784948feba0","sha256:27d3ac14d47016e87a18e1347b7ca3281f3602127ed79377325389d7d855ab21"],"state_sha256":"f780d59af0ef16446bc9f9ee0db8f9e86ec8699c5762a9338b37477661063cf6"}