{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:T3X2PITT76HFSDQ6IVJWW7BSD5","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":"1eb5ef0fd7867fa97500d33e8485a9e10275121ca9f9d5afc85c0d3c0985cada","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-02-08T07:56:40Z","title_canon_sha256":"7a35033ad8c9e3fde2fa3c9309b94a9d5ce238edbb32249e7f13ba2264332565"},"schema_version":"1.0","source":{"id":"1302.2144","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1302.2144","created_at":"2026-05-18T01:51:43Z"},{"alias_kind":"arxiv_version","alias_value":"1302.2144v1","created_at":"2026-05-18T01:51:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1302.2144","created_at":"2026-05-18T01:51:43Z"},{"alias_kind":"pith_short_12","alias_value":"T3X2PITT76HF","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_16","alias_value":"T3X2PITT76HFSDQ6","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_8","alias_value":"T3X2PITT","created_at":"2026-05-18T12:27:59Z"}],"graph_snapshots":[{"event_id":"sha256:faccac55bb3b4784937ff91fad984a2f77df286c0273f932a77ac32ddacc616f","target":"graph","created_at":"2026-05-18T01:51:43Z","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 electronic structure, optical and x-ray absorption spectra, angle dependence of the cyclotron masses and extremal cross sections of the Fermi surface, phonon spectra, electron-phonon Eliashberg and transport spectral functions, temperature dependence of electrical resistivity of the MB2 (M=Ti and Zr) diborides were investigated from first principles using the full potential linear muffin-tin orbital method. The calculations of the dynamic matrix were carried out within the framework of the linear response theory. A good agreement with experimental data of optical and x-ray absorption spect","authors_text":"S. M. Sichkar, V. N. Antonov, V. P. Antropov","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-02-08T07:56:40Z","title":"Comparative study of the electronic structure, phonon spectra and electron-phonon interaction of ZrB2 and TiB2"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1302.2144","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":"sha256:7a48ec08fdd2bcdfe796943407a9617b36bb4665bd0be69108b6f379330df221","target":"record","created_at":"2026-05-18T01:51:43Z","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":"1eb5ef0fd7867fa97500d33e8485a9e10275121ca9f9d5afc85c0d3c0985cada","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-02-08T07:56:40Z","title_canon_sha256":"7a35033ad8c9e3fde2fa3c9309b94a9d5ce238edbb32249e7f13ba2264332565"},"schema_version":"1.0","source":{"id":"1302.2144","kind":"arxiv","version":1}},"canonical_sha256":"9eefa7a273ff8e590e1e45536b7c321f676b00c748904a4606cc802ecb33ecf1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9eefa7a273ff8e590e1e45536b7c321f676b00c748904a4606cc802ecb33ecf1","first_computed_at":"2026-05-18T01:51:43.282163Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:51:43.282163Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wn3wnXoQSBUEU/bmWzukd0spy/xlt9OAbWUTjEslJmHgM/+jvRpwZAMoqIcbSkYp3I91WtQS8kabXAvQT4z2Aw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:51:43.282745Z","signed_message":"canonical_sha256_bytes"},"source_id":"1302.2144","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7a48ec08fdd2bcdfe796943407a9617b36bb4665bd0be69108b6f379330df221","sha256:faccac55bb3b4784937ff91fad984a2f77df286c0273f932a77ac32ddacc616f"],"state_sha256":"3cdc3250a0c4f648258ac0e4143bca6c2c8462a8432397b26ff18090f8b46a31"}