{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2000:VHBEOVUUNGPJ7DUZFRFCKXVD2U","short_pith_number":"pith:VHBEOVUU","canonical_record":{"source":{"id":"cond-mat/0010334","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.stat-mech","submitted_at":"2000-10-22T09:35:12Z","cross_cats_sorted":["cond-mat.str-el","cond-mat.supr-con"],"title_canon_sha256":"23e006c98ee5e6d28775105eacf1fb9a11d8f6f621d18d4430d2d5244c62a100","abstract_canon_sha256":"3b7ce556d18d3d53d577628e4f5a834a44227f07b1c78cd13ddf73c04638135d"},"schema_version":"1.0"},"canonical_sha256":"a9c2475694699e9f8e992c4a255ea3d5316bed2f2c04b235a700fc75912f806f","source":{"kind":"arxiv","id":"cond-mat/0010334","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0010334","created_at":"2026-05-18T01:07:12Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0010334v1","created_at":"2026-05-18T01:07:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0010334","created_at":"2026-05-18T01:07:12Z"},{"alias_kind":"pith_short_12","alias_value":"VHBEOVUUNGPJ","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"VHBEOVUUNGPJ7DUZ","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"VHBEOVUU","created_at":"2026-05-18T12:25:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2000:VHBEOVUUNGPJ7DUZFRFCKXVD2U","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/0010334","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.stat-mech","submitted_at":"2000-10-22T09:35:12Z","cross_cats_sorted":["cond-mat.str-el","cond-mat.supr-con"],"title_canon_sha256":"23e006c98ee5e6d28775105eacf1fb9a11d8f6f621d18d4430d2d5244c62a100","abstract_canon_sha256":"3b7ce556d18d3d53d577628e4f5a834a44227f07b1c78cd13ddf73c04638135d"},"schema_version":"1.0"},"canonical_sha256":"a9c2475694699e9f8e992c4a255ea3d5316bed2f2c04b235a700fc75912f806f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:07:12.474333Z","signature_b64":"zgciBsTupRoeoJLEwAG+UxwGt4EMvABV/5xFo7haJGC3wZqrz+uG2otNexyX7zHgEkeUFKuygOpwuQU7Wr34Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a9c2475694699e9f8e992c4a255ea3d5316bed2f2c04b235a700fc75912f806f","last_reissued_at":"2026-05-18T01:07:12.473629Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:07:12.473629Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/0010334","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":"2026-05-18T01:07:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OYOpJoZwLuKTgvC4Tn9r3LQXBRDdTGEe0qYLEUeSuqQNUWdpNS5QXx80/tHbOYBxnpRLGxjbsANSpv+iR37IAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-29T13:28:15.761852Z"},"content_sha256":"124e7ad88f00c4fa43cbba2bb7d4c87b3641311eb3d605a4a7d5eb7bed7fca73","schema_version":"1.0","event_id":"sha256:124e7ad88f00c4fa43cbba2bb7d4c87b3641311eb3d605a4a7d5eb7bed7fca73"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2000:VHBEOVUUNGPJ7DUZFRFCKXVD2U","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Self-consistent approach for thermodynamics of a simplified pseudospin-electron model","license":"","headline":"","cross_cats":["cond-mat.str-el","cond-mat.supr-con"],"primary_cat":"cond-mat.stat-mech","authors_text":"A.M.Shvaika, I.V.Stasyuk, K.V.Tabunshchyk","submitted_at":"2000-10-22T09:35:12Z","abstract_excerpt":"We present the method of the self-consistent calculation of thermodynamical and correlation functions. This approach is based on the GRPA (generalized random phase approximation) scheme with the inclusion of the mean field corrections.\n Investigation of a pseudospin-electron model (PEM) within the framework of the presented method shows that interaction between the electron and pseudospin subsystems leads to the possibility of either first or second order phase transitions between different uniform phases (bistability) as well as between the uniform and the chess-board ones.\n In the regime n=c"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0010334","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":"2026-05-18T01:07:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"erRfUDjx7ePdG4zDIh2NaQR1bZS83KKxv8Ei7mS/gfTF5ep5c/090aAfNVI4gw6EE9qnWT0HJkKi/+CTWYk4Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-29T13:28:15.762186Z"},"content_sha256":"323f9b752208a05c05f994d0169abb99e46aa89d13a87731f2b899196b1ebdc3","schema_version":"1.0","event_id":"sha256:323f9b752208a05c05f994d0169abb99e46aa89d13a87731f2b899196b1ebdc3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VHBEOVUUNGPJ7DUZFRFCKXVD2U/bundle.json","state_url":"https://pith.science/pith/VHBEOVUUNGPJ7DUZFRFCKXVD2U/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VHBEOVUUNGPJ7DUZFRFCKXVD2U/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":"2026-06-29T13:28:15Z","links":{"resolver":"https://pith.science/pith/VHBEOVUUNGPJ7DUZFRFCKXVD2U","bundle":"https://pith.science/pith/VHBEOVUUNGPJ7DUZFRFCKXVD2U/bundle.json","state":"https://pith.science/pith/VHBEOVUUNGPJ7DUZFRFCKXVD2U/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VHBEOVUUNGPJ7DUZFRFCKXVD2U/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:VHBEOVUUNGPJ7DUZFRFCKXVD2U","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":"3b7ce556d18d3d53d577628e4f5a834a44227f07b1c78cd13ddf73c04638135d","cross_cats_sorted":["cond-mat.str-el","cond-mat.supr-con"],"license":"","primary_cat":"cond-mat.stat-mech","submitted_at":"2000-10-22T09:35:12Z","title_canon_sha256":"23e006c98ee5e6d28775105eacf1fb9a11d8f6f621d18d4430d2d5244c62a100"},"schema_version":"1.0","source":{"id":"cond-mat/0010334","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0010334","created_at":"2026-05-18T01:07:12Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0010334v1","created_at":"2026-05-18T01:07:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0010334","created_at":"2026-05-18T01:07:12Z"},{"alias_kind":"pith_short_12","alias_value":"VHBEOVUUNGPJ","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"VHBEOVUUNGPJ7DUZ","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"VHBEOVUU","created_at":"2026-05-18T12:25:50Z"}],"graph_snapshots":[{"event_id":"sha256:323f9b752208a05c05f994d0169abb99e46aa89d13a87731f2b899196b1ebdc3","target":"graph","created_at":"2026-05-18T01:07:12Z","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 present the method of the self-consistent calculation of thermodynamical and correlation functions. This approach is based on the GRPA (generalized random phase approximation) scheme with the inclusion of the mean field corrections.\n Investigation of a pseudospin-electron model (PEM) within the framework of the presented method shows that interaction between the electron and pseudospin subsystems leads to the possibility of either first or second order phase transitions between different uniform phases (bistability) as well as between the uniform and the chess-board ones.\n In the regime n=c","authors_text":"A.M.Shvaika, I.V.Stasyuk, K.V.Tabunshchyk","cross_cats":["cond-mat.str-el","cond-mat.supr-con"],"headline":"","license":"","primary_cat":"cond-mat.stat-mech","submitted_at":"2000-10-22T09:35:12Z","title":"Self-consistent approach for thermodynamics of a simplified pseudospin-electron model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0010334","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":"sha256:124e7ad88f00c4fa43cbba2bb7d4c87b3641311eb3d605a4a7d5eb7bed7fca73","target":"record","created_at":"2026-05-18T01:07:12Z","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":"3b7ce556d18d3d53d577628e4f5a834a44227f07b1c78cd13ddf73c04638135d","cross_cats_sorted":["cond-mat.str-el","cond-mat.supr-con"],"license":"","primary_cat":"cond-mat.stat-mech","submitted_at":"2000-10-22T09:35:12Z","title_canon_sha256":"23e006c98ee5e6d28775105eacf1fb9a11d8f6f621d18d4430d2d5244c62a100"},"schema_version":"1.0","source":{"id":"cond-mat/0010334","kind":"arxiv","version":1}},"canonical_sha256":"a9c2475694699e9f8e992c4a255ea3d5316bed2f2c04b235a700fc75912f806f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a9c2475694699e9f8e992c4a255ea3d5316bed2f2c04b235a700fc75912f806f","first_computed_at":"2026-05-18T01:07:12.473629Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:07:12.473629Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zgciBsTupRoeoJLEwAG+UxwGt4EMvABV/5xFo7haJGC3wZqrz+uG2otNexyX7zHgEkeUFKuygOpwuQU7Wr34Cg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:07:12.474333Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0010334","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:124e7ad88f00c4fa43cbba2bb7d4c87b3641311eb3d605a4a7d5eb7bed7fca73","sha256:323f9b752208a05c05f994d0169abb99e46aa89d13a87731f2b899196b1ebdc3"],"state_sha256":"7c0076af1d6228d7b7b149fbf4d5b07a111c30ed2f661761518fb0820625bd50"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KtmEbTdBn1kKsubgHWiCm8SoQtfV5RXXRUxhxGzcj1xiA/wmpBNWeTopYO+7fS5KMqdBx0L8iZ+T22VH8/qLDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-29T13:28:15.764054Z","bundle_sha256":"8b6bc741a4c6686ea1921f5bcdc4dd7873f74aa3c1b9e9c6b40ebdb48048b501"}}