{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:RYVIXVJAMTRRFBU6B4Q6IPHQNO","short_pith_number":"pith:RYVIXVJA","canonical_record":{"source":{"id":"1704.05669","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-04-19T09:37:48Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"19e9ac17dd5092c20fd72fcfa7daa77fbac1f5c862ffe2c851177a0e36323f74","abstract_canon_sha256":"87288881ffad248f14eb4f3319dca8733b51d98e7377d3998ba783bf89233b1b"},"schema_version":"1.0"},"canonical_sha256":"8e2a8bd52064e312869e0f21e43cf06b8535d9e9ce3000d283deeaef8e0d3376","source":{"kind":"arxiv","id":"1704.05669","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.05669","created_at":"2026-05-18T00:31:41Z"},{"alias_kind":"arxiv_version","alias_value":"1704.05669v2","created_at":"2026-05-18T00:31:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.05669","created_at":"2026-05-18T00:31:41Z"},{"alias_kind":"pith_short_12","alias_value":"RYVIXVJAMTRR","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_16","alias_value":"RYVIXVJAMTRRFBU6","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_8","alias_value":"RYVIXVJA","created_at":"2026-05-18T12:31:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:RYVIXVJAMTRRFBU6B4Q6IPHQNO","target":"record","payload":{"canonical_record":{"source":{"id":"1704.05669","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-04-19T09:37:48Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"19e9ac17dd5092c20fd72fcfa7daa77fbac1f5c862ffe2c851177a0e36323f74","abstract_canon_sha256":"87288881ffad248f14eb4f3319dca8733b51d98e7377d3998ba783bf89233b1b"},"schema_version":"1.0"},"canonical_sha256":"8e2a8bd52064e312869e0f21e43cf06b8535d9e9ce3000d283deeaef8e0d3376","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:31:41.273781Z","signature_b64":"LCsUjAJPIvhdqgi2sFprXGaublrvD8OiZKaPL+2Ukwky5LNUBdPsuNXjqRXq8UJCYc81QmsFesIlDNNifn4GCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8e2a8bd52064e312869e0f21e43cf06b8535d9e9ce3000d283deeaef8e0d3376","last_reissued_at":"2026-05-18T00:31:41.273212Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:31:41.273212Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1704.05669","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:31:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"j8KzLZtZR33e23FOr7cixA1ayzjuXB9ZaX9rLFhEik9HtPzciP7TgGL/Zu+6xQHZrCaRITQtvtqIsGs1HHrKBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T06:08:54.333481Z"},"content_sha256":"ffd1682542d2baa604609c3d6a32307b1c73e293ac48634041db096b336cecd6","schema_version":"1.0","event_id":"sha256:ffd1682542d2baa604609c3d6a32307b1c73e293ac48634041db096b336cecd6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:RYVIXVJAMTRRFBU6B4Q6IPHQNO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Critical role of the exchange interaction for the electronic structure and charge-density-wave formation in TiSe2","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Francesco Mauri, Jacopo Baima, Ludger Wirtz, Maria Hellgren, Matteo Calandra, Raffaello Bianco","submitted_at":"2017-04-19T09:37:48Z","abstract_excerpt":"We show that the inclusion of screened exchange via hybrid functionals provides a unified description of the electronic and vibrational properties of TiSe2. In contrast to local approximations in density functional theory, the explicit inclusion of exact, non-local exchange captures the effects of the electron-electron interaction needed to both separate the Ti-d states from the Se-p states and stabilize the charge-density-wave (CDW) (or low-T) phase through the formation of a p-d hybridized state. We further show that this leads to an enhanced electron-phonon coupling that can drive the trans"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.05669","kind":"arxiv","version":2},"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":"2026-05-18T00:31:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xHx1jVn+NDtaibcumQXfCf9sKXpGroPOkEKhYaKizgvB8Xy0E+L4N2mDNK5OBEZpr2jRtl1BztjzZeaSkgcoAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T06:08:54.333995Z"},"content_sha256":"9bbccc7ad32e655a98587306c84dda4574d76d7b9d1fb3e21d093ef816654dd2","schema_version":"1.0","event_id":"sha256:9bbccc7ad32e655a98587306c84dda4574d76d7b9d1fb3e21d093ef816654dd2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RYVIXVJAMTRRFBU6B4Q6IPHQNO/bundle.json","state_url":"https://pith.science/pith/RYVIXVJAMTRRFBU6B4Q6IPHQNO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RYVIXVJAMTRRFBU6B4Q6IPHQNO/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":"2026-05-30T06:08:54Z","links":{"resolver":"https://pith.science/pith/RYVIXVJAMTRRFBU6B4Q6IPHQNO","bundle":"https://pith.science/pith/RYVIXVJAMTRRFBU6B4Q6IPHQNO/bundle.json","state":"https://pith.science/pith/RYVIXVJAMTRRFBU6B4Q6IPHQNO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RYVIXVJAMTRRFBU6B4Q6IPHQNO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:RYVIXVJAMTRRFBU6B4Q6IPHQNO","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":"87288881ffad248f14eb4f3319dca8733b51d98e7377d3998ba783bf89233b1b","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-04-19T09:37:48Z","title_canon_sha256":"19e9ac17dd5092c20fd72fcfa7daa77fbac1f5c862ffe2c851177a0e36323f74"},"schema_version":"1.0","source":{"id":"1704.05669","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.05669","created_at":"2026-05-18T00:31:41Z"},{"alias_kind":"arxiv_version","alias_value":"1704.05669v2","created_at":"2026-05-18T00:31:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.05669","created_at":"2026-05-18T00:31:41Z"},{"alias_kind":"pith_short_12","alias_value":"RYVIXVJAMTRR","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_16","alias_value":"RYVIXVJAMTRRFBU6","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_8","alias_value":"RYVIXVJA","created_at":"2026-05-18T12:31:43Z"}],"graph_snapshots":[{"event_id":"sha256:9bbccc7ad32e655a98587306c84dda4574d76d7b9d1fb3e21d093ef816654dd2","target":"graph","created_at":"2026-05-18T00:31:41Z","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 show that the inclusion of screened exchange via hybrid functionals provides a unified description of the electronic and vibrational properties of TiSe2. In contrast to local approximations in density functional theory, the explicit inclusion of exact, non-local exchange captures the effects of the electron-electron interaction needed to both separate the Ti-d states from the Se-p states and stabilize the charge-density-wave (CDW) (or low-T) phase through the formation of a p-d hybridized state. We further show that this leads to an enhanced electron-phonon coupling that can drive the trans","authors_text":"Francesco Mauri, Jacopo Baima, Ludger Wirtz, Maria Hellgren, Matteo Calandra, Raffaello Bianco","cross_cats":["cond-mat.str-el"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-04-19T09:37:48Z","title":"Critical role of the exchange interaction for the electronic structure and charge-density-wave formation in TiSe2"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.05669","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:ffd1682542d2baa604609c3d6a32307b1c73e293ac48634041db096b336cecd6","target":"record","created_at":"2026-05-18T00:31:41Z","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":"87288881ffad248f14eb4f3319dca8733b51d98e7377d3998ba783bf89233b1b","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-04-19T09:37:48Z","title_canon_sha256":"19e9ac17dd5092c20fd72fcfa7daa77fbac1f5c862ffe2c851177a0e36323f74"},"schema_version":"1.0","source":{"id":"1704.05669","kind":"arxiv","version":2}},"canonical_sha256":"8e2a8bd52064e312869e0f21e43cf06b8535d9e9ce3000d283deeaef8e0d3376","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8e2a8bd52064e312869e0f21e43cf06b8535d9e9ce3000d283deeaef8e0d3376","first_computed_at":"2026-05-18T00:31:41.273212Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:31:41.273212Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LCsUjAJPIvhdqgi2sFprXGaublrvD8OiZKaPL+2Ukwky5LNUBdPsuNXjqRXq8UJCYc81QmsFesIlDNNifn4GCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:31:41.273781Z","signed_message":"canonical_sha256_bytes"},"source_id":"1704.05669","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ffd1682542d2baa604609c3d6a32307b1c73e293ac48634041db096b336cecd6","sha256:9bbccc7ad32e655a98587306c84dda4574d76d7b9d1fb3e21d093ef816654dd2"],"state_sha256":"f1cd592644d70cde3ce71f8f07091018380be6b41ba1951d9bd9e2eb25f12533"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+IhLHqOmsNQkxQBLh6gqHuvZPQaN/c0X4C2RwOnOS8Mur/IBmYcCZwvtr1jzPC9yugU1KULKzzjhm3HefpkRBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T06:08:54.336874Z","bundle_sha256":"560dc7881bf5f9c595a0448a59c997ae6d6e3d987f3db7682097c39168a11592"}}