{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:PTMZORAAHXBFUNUKQTL6VZIV63","short_pith_number":"pith:PTMZORAA","canonical_record":{"source":{"id":"1907.08134","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2019-07-17T08:08:38Z","cross_cats_sorted":[],"title_canon_sha256":"1dc58f1c857cf1e6a58d5b54d32aae03ff263f7f017de327919bc8695c0756c8","abstract_canon_sha256":"42205c4b4117bced4db4bc9f7d278e16b6d24b52890657bb6e664abf93b4cfad"},"schema_version":"1.0"},"canonical_sha256":"7cd99744003dc25a368a84d7eae515f6eba33193b709141efba716b330a8b259","source":{"kind":"arxiv","id":"1907.08134","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.08134","created_at":"2026-05-17T23:40:14Z"},{"alias_kind":"arxiv_version","alias_value":"1907.08134v1","created_at":"2026-05-17T23:40:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.08134","created_at":"2026-05-17T23:40:14Z"},{"alias_kind":"pith_short_12","alias_value":"PTMZORAAHXBF","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_16","alias_value":"PTMZORAAHXBFUNUK","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_8","alias_value":"PTMZORAA","created_at":"2026-05-18T12:33:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:PTMZORAAHXBFUNUKQTL6VZIV63","target":"record","payload":{"canonical_record":{"source":{"id":"1907.08134","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2019-07-17T08:08:38Z","cross_cats_sorted":[],"title_canon_sha256":"1dc58f1c857cf1e6a58d5b54d32aae03ff263f7f017de327919bc8695c0756c8","abstract_canon_sha256":"42205c4b4117bced4db4bc9f7d278e16b6d24b52890657bb6e664abf93b4cfad"},"schema_version":"1.0"},"canonical_sha256":"7cd99744003dc25a368a84d7eae515f6eba33193b709141efba716b330a8b259","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:40:14.994469Z","signature_b64":"mdBlgbDKB0/RXSmTuVtGpzhMOB1e8y9GLpnfmKILG1H53IoIoqFWCS/lZdJihwaoGyOlXeuQuQMZIyRDsOJeBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7cd99744003dc25a368a84d7eae515f6eba33193b709141efba716b330a8b259","last_reissued_at":"2026-05-17T23:40:14.993794Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:40:14.993794Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1907.08134","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":"2026-05-17T23:40:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HwBLNF/sPkvHO62nKnmdTXuQ7z9UTg0gYtxy4/LccP951SwdNLqTiTRZ8w/efEM5BNICjIhKV3J3PEZ0+TL6DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T20:07:46.693266Z"},"content_sha256":"dc4128ca3f11c2eff66595e9407009dec44cbbf9efb72376d7cb1b1d40ddcb13","schema_version":"1.0","event_id":"sha256:dc4128ca3f11c2eff66595e9407009dec44cbbf9efb72376d7cb1b1d40ddcb13"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:PTMZORAAHXBFUNUKQTL6VZIV63","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The influence of nonlocal interactions on valence transitions and formation of excitonic bound states in the generalized Falicov-Kimball model","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Pavol Farkasovsky","submitted_at":"2019-07-17T08:08:38Z","abstract_excerpt":"We use the density-matrix-renormalization-group (DMRG) method to study the combined effects of nonlocal interactions on valence transitions and the formation of excitonic bound states in the generalized Falicov-Kimball model. In particular, we consider the nearest-neighbour Coulomb interaction $U_{nn}$ between two $d$, two $f$, $d$ and $f$ electrons as well as the so-called correlated hopping term $U_{ch}$ and examine their effects on the density of conduction $n_d$ (valence $n_f$) electrons and the excitonic momentum distribution $N(q)$. It is shown that $U_{nn}$ and $U_{ch}$ exhibit very str"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.08134","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":""},"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":"2026-05-17T23:40:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"s1RFFhHw5x22UaWoDZSi+ZlehvmRjzhlcoZeLpde6f2vBynka+Bg1r8fSSITvLaZZQwpmVgbxFpI/H+9tDclDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T20:07:46.694035Z"},"content_sha256":"42923404a07896389a2a40662a45580ad86f3e5e1619d4836a28902bfad4e72a","schema_version":"1.0","event_id":"sha256:42923404a07896389a2a40662a45580ad86f3e5e1619d4836a28902bfad4e72a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PTMZORAAHXBFUNUKQTL6VZIV63/bundle.json","state_url":"https://pith.science/pith/PTMZORAAHXBFUNUKQTL6VZIV63/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PTMZORAAHXBFUNUKQTL6VZIV63/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":"2026-05-31T20:07:46Z","links":{"resolver":"https://pith.science/pith/PTMZORAAHXBFUNUKQTL6VZIV63","bundle":"https://pith.science/pith/PTMZORAAHXBFUNUKQTL6VZIV63/bundle.json","state":"https://pith.science/pith/PTMZORAAHXBFUNUKQTL6VZIV63/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PTMZORAAHXBFUNUKQTL6VZIV63/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:PTMZORAAHXBFUNUKQTL6VZIV63","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":"42205c4b4117bced4db4bc9f7d278e16b6d24b52890657bb6e664abf93b4cfad","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2019-07-17T08:08:38Z","title_canon_sha256":"1dc58f1c857cf1e6a58d5b54d32aae03ff263f7f017de327919bc8695c0756c8"},"schema_version":"1.0","source":{"id":"1907.08134","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.08134","created_at":"2026-05-17T23:40:14Z"},{"alias_kind":"arxiv_version","alias_value":"1907.08134v1","created_at":"2026-05-17T23:40:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.08134","created_at":"2026-05-17T23:40:14Z"},{"alias_kind":"pith_short_12","alias_value":"PTMZORAAHXBF","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_16","alias_value":"PTMZORAAHXBFUNUK","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_8","alias_value":"PTMZORAA","created_at":"2026-05-18T12:33:24Z"}],"graph_snapshots":[{"event_id":"sha256:42923404a07896389a2a40662a45580ad86f3e5e1619d4836a28902bfad4e72a","target":"graph","created_at":"2026-05-17T23:40:14Z","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 use the density-matrix-renormalization-group (DMRG) method to study the combined effects of nonlocal interactions on valence transitions and the formation of excitonic bound states in the generalized Falicov-Kimball model. In particular, we consider the nearest-neighbour Coulomb interaction $U_{nn}$ between two $d$, two $f$, $d$ and $f$ electrons as well as the so-called correlated hopping term $U_{ch}$ and examine their effects on the density of conduction $n_d$ (valence $n_f$) electrons and the excitonic momentum distribution $N(q)$. It is shown that $U_{nn}$ and $U_{ch}$ exhibit very str","authors_text":"Pavol Farkasovsky","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2019-07-17T08:08:38Z","title":"The influence of nonlocal interactions on valence transitions and formation of excitonic bound states in the generalized Falicov-Kimball model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.08134","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:dc4128ca3f11c2eff66595e9407009dec44cbbf9efb72376d7cb1b1d40ddcb13","target":"record","created_at":"2026-05-17T23:40:14Z","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":"42205c4b4117bced4db4bc9f7d278e16b6d24b52890657bb6e664abf93b4cfad","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2019-07-17T08:08:38Z","title_canon_sha256":"1dc58f1c857cf1e6a58d5b54d32aae03ff263f7f017de327919bc8695c0756c8"},"schema_version":"1.0","source":{"id":"1907.08134","kind":"arxiv","version":1}},"canonical_sha256":"7cd99744003dc25a368a84d7eae515f6eba33193b709141efba716b330a8b259","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7cd99744003dc25a368a84d7eae515f6eba33193b709141efba716b330a8b259","first_computed_at":"2026-05-17T23:40:14.993794Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:40:14.993794Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mdBlgbDKB0/RXSmTuVtGpzhMOB1e8y9GLpnfmKILG1H53IoIoqFWCS/lZdJihwaoGyOlXeuQuQMZIyRDsOJeBQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:40:14.994469Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.08134","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dc4128ca3f11c2eff66595e9407009dec44cbbf9efb72376d7cb1b1d40ddcb13","sha256:42923404a07896389a2a40662a45580ad86f3e5e1619d4836a28902bfad4e72a"],"state_sha256":"4cc1740ac4a68e294a11dfbfc4ed5fbfc3c4ce534b62a090d7c0beb3dbbd71a8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ztsGLGue4xHTofCgpmZTdgu6MlERy6sKM6JqT0tuqc2AqFA3SHc7ZLbiYLesb3WmfGNFuvhzP0w4kaxt7njBCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T20:07:46.698367Z","bundle_sha256":"3f01637100fd9a9e71cc20283d6b96368bba7f23827423328c1919a0908fc863"}}