{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:CWEOGWDAYG5W2BAORF5PX3K673","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":"eef63c9b8cca6397edf7702921ecbc0b14b4a41fbf6f15cfdd46a1b4b8202d22","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-12-11T18:23:45Z","title_canon_sha256":"e8cfcbe7469695a0df5e8056fccb8ccb150e4b8a7281b7f7b43f0fb70c536a82"},"schema_version":"1.0","source":{"id":"1812.04592","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.04592","created_at":"2026-05-17T23:54:08Z"},{"alias_kind":"arxiv_version","alias_value":"1812.04592v2","created_at":"2026-05-17T23:54:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.04592","created_at":"2026-05-17T23:54:08Z"},{"alias_kind":"pith_short_12","alias_value":"CWEOGWDAYG5W","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_16","alias_value":"CWEOGWDAYG5W2BAO","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_8","alias_value":"CWEOGWDA","created_at":"2026-05-18T12:32:19Z"}],"graph_snapshots":[{"event_id":"sha256:ce57ffd84261dc9b6ad3970b7007fd83afc2c0017bcd97f7c89c2d9e4abc8f4b","target":"graph","created_at":"2026-05-17T23:54:08Z","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":"We consider the effects of the electron-electron interaction in a clean Dirac metal, i.e., a Dirac system with the chemical potential not tuned to the Dirac point. We introduce the notion of a Dirac Fermi liquid (DFL) and discuss the soft two-particle excitations in such systems, which are qualitatively different from the corresponding excitations in a conventional, or Landau, Fermi liquid (LFL). These soft excitations lead to nonanalytic dependencies of observables, including the density of states, the spin susceptibility, and the specific heat, on the temperature, magnetic field, and wave nu","authors_text":"D. Belitz, T.R. Kirkpatrick","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-12-11T18:23:45Z","title":"Soft Modes and Nonanalyticities in a Clean Dirac Metal"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.04592","kind":"arxiv","version":2},"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:beec7dbc37fd7a68d34bb2fed09bbcc125e27dac4af45857891f3fc9e7720aa1","target":"record","created_at":"2026-05-17T23:54:08Z","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":"eef63c9b8cca6397edf7702921ecbc0b14b4a41fbf6f15cfdd46a1b4b8202d22","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-12-11T18:23:45Z","title_canon_sha256":"e8cfcbe7469695a0df5e8056fccb8ccb150e4b8a7281b7f7b43f0fb70c536a82"},"schema_version":"1.0","source":{"id":"1812.04592","kind":"arxiv","version":2}},"canonical_sha256":"1588e35860c1bb6d040e897afbed5efee3f64cfecd613e0c3cf8b884f5fa3da9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1588e35860c1bb6d040e897afbed5efee3f64cfecd613e0c3cf8b884f5fa3da9","first_computed_at":"2026-05-17T23:54:08.250929Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:54:08.250929Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YSkW1TNJJAQlEHP0LAND40KNZCXkZmaNfcp5BsgmYBnrKZHP3+9iKE5V6zQPGatWZVsJw0hCEHqIR20+6LZuCg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:54:08.251572Z","signed_message":"canonical_sha256_bytes"},"source_id":"1812.04592","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:beec7dbc37fd7a68d34bb2fed09bbcc125e27dac4af45857891f3fc9e7720aa1","sha256:ce57ffd84261dc9b6ad3970b7007fd83afc2c0017bcd97f7c89c2d9e4abc8f4b"],"state_sha256":"c6a856c7ead9a1d711169ac180a6e4eddf9367134d677de567fb4634d93fc64b"}