{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:OSUF7AGV5KCEMT7UBDEPLQIQYB","short_pith_number":"pith:OSUF7AGV","canonical_record":{"source":{"id":"1802.03449","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-02-09T21:12:42Z","cross_cats_sorted":[],"title_canon_sha256":"4a14aac281c87a1adc1d49fe9c415cd4ebaa784c969d179c1e3866b25e8d0f94","abstract_canon_sha256":"3c66931f8dd60656a988ebb775ab39aa196996ef32e112a05889b3e050015c14"},"schema_version":"1.0"},"canonical_sha256":"74a85f80d5ea84464ff408c8f5c110c060e0815201870bbb8f6f000af08400e9","source":{"kind":"arxiv","id":"1802.03449","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.03449","created_at":"2026-05-18T00:17:59Z"},{"alias_kind":"arxiv_version","alias_value":"1802.03449v2","created_at":"2026-05-18T00:17:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.03449","created_at":"2026-05-18T00:17:59Z"},{"alias_kind":"pith_short_12","alias_value":"OSUF7AGV5KCE","created_at":"2026-05-18T12:32:43Z"},{"alias_kind":"pith_short_16","alias_value":"OSUF7AGV5KCEMT7U","created_at":"2026-05-18T12:32:43Z"},{"alias_kind":"pith_short_8","alias_value":"OSUF7AGV","created_at":"2026-05-18T12:32:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:OSUF7AGV5KCEMT7UBDEPLQIQYB","target":"record","payload":{"canonical_record":{"source":{"id":"1802.03449","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-02-09T21:12:42Z","cross_cats_sorted":[],"title_canon_sha256":"4a14aac281c87a1adc1d49fe9c415cd4ebaa784c969d179c1e3866b25e8d0f94","abstract_canon_sha256":"3c66931f8dd60656a988ebb775ab39aa196996ef32e112a05889b3e050015c14"},"schema_version":"1.0"},"canonical_sha256":"74a85f80d5ea84464ff408c8f5c110c060e0815201870bbb8f6f000af08400e9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:17:59.606714Z","signature_b64":"0OgyyITCzCM/NASbHlQWuv0iLlx8l3BxDWfGrLu6NfIMaFxnaWMGVMVDGYz2jixmbeP8Q/h9dmVS6uLv3DPfBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"74a85f80d5ea84464ff408c8f5c110c060e0815201870bbb8f6f000af08400e9","last_reissued_at":"2026-05-18T00:17:59.606207Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:17:59.606207Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1802.03449","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":"2026-05-18T00:17:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"h/pnp25wyQY4kMGLoS3PEZOX689ERoFGRSLmCi4Wy7anwe4O1pOa8fxmQ2WYnerXUL4koxXmghfCGF4BkoEgAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T22:43:35.632397Z"},"content_sha256":"bb47f1a0b9eafd91eee3a249cf2b300d85d0eab79578a97d4238aec22faff560","schema_version":"1.0","event_id":"sha256:bb47f1a0b9eafd91eee3a249cf2b300d85d0eab79578a97d4238aec22faff560"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:OSUF7AGV5KCEMT7UBDEPLQIQYB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Accuracy of the microcanonical Lanczos method to compute real-frequency dynamical spectral functions of quantum models at finite temperatures","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Elbio Dagotto, Gonzalo Alvarez, Satoshi Okamoto, Takami Tohyama","submitted_at":"2018-02-09T21:12:42Z","abstract_excerpt":"We examine the accuracy of the microcanonical Lanczos method (MCLM) developed by Long, {\\it et al.} [Phys. Rev. B {\\bf 68}, 235106 (2003)] to compute dynamical spectral functions of interacting quantum models at finite temperatures. The MCLM is based on the microcanonical ensemble, which becomes exact in the thermodynamic limit. To apply the microcanonical ensemble at a fixed temperature, one has to find energy eigenstates with the energy eigenvalue corresponding to the internal energy in the canonical ensemble. Here, we propose to use thermal pure quantum state methods by Sugiura and Shimizu "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.03449","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":"2026-05-18T00:17:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cU1HUMND4Cjl2IzODAGFDoWoNBhGGP9Eg4axT2VOX7dnPMLOdHaM1LU48zcRe5zHMhb4uOvxnpTqmfgVPwQ7Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T22:43:35.632826Z"},"content_sha256":"d38cdafaf282d6a5f7a5dda3abeedd970a6bfb81d4f280a18eabd379238cabab","schema_version":"1.0","event_id":"sha256:d38cdafaf282d6a5f7a5dda3abeedd970a6bfb81d4f280a18eabd379238cabab"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OSUF7AGV5KCEMT7UBDEPLQIQYB/bundle.json","state_url":"https://pith.science/pith/OSUF7AGV5KCEMT7UBDEPLQIQYB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OSUF7AGV5KCEMT7UBDEPLQIQYB/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":"2026-05-27T22:43:35Z","links":{"resolver":"https://pith.science/pith/OSUF7AGV5KCEMT7UBDEPLQIQYB","bundle":"https://pith.science/pith/OSUF7AGV5KCEMT7UBDEPLQIQYB/bundle.json","state":"https://pith.science/pith/OSUF7AGV5KCEMT7UBDEPLQIQYB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OSUF7AGV5KCEMT7UBDEPLQIQYB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:OSUF7AGV5KCEMT7UBDEPLQIQYB","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":"3c66931f8dd60656a988ebb775ab39aa196996ef32e112a05889b3e050015c14","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-02-09T21:12:42Z","title_canon_sha256":"4a14aac281c87a1adc1d49fe9c415cd4ebaa784c969d179c1e3866b25e8d0f94"},"schema_version":"1.0","source":{"id":"1802.03449","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.03449","created_at":"2026-05-18T00:17:59Z"},{"alias_kind":"arxiv_version","alias_value":"1802.03449v2","created_at":"2026-05-18T00:17:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.03449","created_at":"2026-05-18T00:17:59Z"},{"alias_kind":"pith_short_12","alias_value":"OSUF7AGV5KCE","created_at":"2026-05-18T12:32:43Z"},{"alias_kind":"pith_short_16","alias_value":"OSUF7AGV5KCEMT7U","created_at":"2026-05-18T12:32:43Z"},{"alias_kind":"pith_short_8","alias_value":"OSUF7AGV","created_at":"2026-05-18T12:32:43Z"}],"graph_snapshots":[{"event_id":"sha256:d38cdafaf282d6a5f7a5dda3abeedd970a6bfb81d4f280a18eabd379238cabab","target":"graph","created_at":"2026-05-18T00:17:59Z","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 examine the accuracy of the microcanonical Lanczos method (MCLM) developed by Long, {\\it et al.} [Phys. Rev. B {\\bf 68}, 235106 (2003)] to compute dynamical spectral functions of interacting quantum models at finite temperatures. The MCLM is based on the microcanonical ensemble, which becomes exact in the thermodynamic limit. To apply the microcanonical ensemble at a fixed temperature, one has to find energy eigenstates with the energy eigenvalue corresponding to the internal energy in the canonical ensemble. Here, we propose to use thermal pure quantum state methods by Sugiura and Shimizu ","authors_text":"Elbio Dagotto, Gonzalo Alvarez, Satoshi Okamoto, Takami Tohyama","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-02-09T21:12:42Z","title":"Accuracy of the microcanonical Lanczos method to compute real-frequency dynamical spectral functions of quantum models at finite temperatures"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.03449","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:bb47f1a0b9eafd91eee3a249cf2b300d85d0eab79578a97d4238aec22faff560","target":"record","created_at":"2026-05-18T00:17:59Z","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":"3c66931f8dd60656a988ebb775ab39aa196996ef32e112a05889b3e050015c14","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-02-09T21:12:42Z","title_canon_sha256":"4a14aac281c87a1adc1d49fe9c415cd4ebaa784c969d179c1e3866b25e8d0f94"},"schema_version":"1.0","source":{"id":"1802.03449","kind":"arxiv","version":2}},"canonical_sha256":"74a85f80d5ea84464ff408c8f5c110c060e0815201870bbb8f6f000af08400e9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"74a85f80d5ea84464ff408c8f5c110c060e0815201870bbb8f6f000af08400e9","first_computed_at":"2026-05-18T00:17:59.606207Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:17:59.606207Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0OgyyITCzCM/NASbHlQWuv0iLlx8l3BxDWfGrLu6NfIMaFxnaWMGVMVDGYz2jixmbeP8Q/h9dmVS6uLv3DPfBg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:17:59.606714Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.03449","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bb47f1a0b9eafd91eee3a249cf2b300d85d0eab79578a97d4238aec22faff560","sha256:d38cdafaf282d6a5f7a5dda3abeedd970a6bfb81d4f280a18eabd379238cabab"],"state_sha256":"63a14ab2178c2255af2cc96e3a3e3e2b902b126faf5cfe028a1528c2c79afe95"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MmBgxnoqMOUDpnP5V8fXoXoNdnawdKkq2Z7tJC4fBvLkFxU10SI+7hff27SQroj22uG9iSLL4lXpwjDXafdEBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T22:43:35.635426Z","bundle_sha256":"3f3041aebaa4ff0f72deb13b0c22f5e530de9e7c9d0f01df85110b3c9e9397eb"}}