{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2002:5U2CZXVLJFMH254VIRLM2HMH6D","short_pith_number":"pith:5U2CZXVL","canonical_record":{"source":{"id":"cond-mat/0210497","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2002-10-22T16:17:44Z","cross_cats_sorted":["cond-mat.stat-mech"],"title_canon_sha256":"958d34f31c21c30722d1c055fd81c325195ccce73059c9e43949984058a7edc2","abstract_canon_sha256":"f0bfe5d336e572c411c7f828f031a7bcd692976c2baa05c974d278a3dcaac4c8"},"schema_version":"1.0"},"canonical_sha256":"ed342cdeab49587d77954456cd1d87f0ce168e23dfbf4b4d0a8332a3c2fa2560","source":{"kind":"arxiv","id":"cond-mat/0210497","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0210497","created_at":"2026-05-18T01:40:02Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0210497v1","created_at":"2026-05-18T01:40:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0210497","created_at":"2026-05-18T01:40:02Z"},{"alias_kind":"pith_short_12","alias_value":"5U2CZXVLJFMH","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"5U2CZXVLJFMH254V","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"5U2CZXVL","created_at":"2026-05-18T12:25:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2002:5U2CZXVLJFMH254VIRLM2HMH6D","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/0210497","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2002-10-22T16:17:44Z","cross_cats_sorted":["cond-mat.stat-mech"],"title_canon_sha256":"958d34f31c21c30722d1c055fd81c325195ccce73059c9e43949984058a7edc2","abstract_canon_sha256":"f0bfe5d336e572c411c7f828f031a7bcd692976c2baa05c974d278a3dcaac4c8"},"schema_version":"1.0"},"canonical_sha256":"ed342cdeab49587d77954456cd1d87f0ce168e23dfbf4b4d0a8332a3c2fa2560","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:40:02.614525Z","signature_b64":"m8JLUOcgwlVd/nSol6HsmyC25b6YgjnESRpEYBhQfLv7igeSozWqyPGzPcjdRYDSpiHwAO5zXN4DvV1urng5Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ed342cdeab49587d77954456cd1d87f0ce168e23dfbf4b4d0a8332a3c2fa2560","last_reissued_at":"2026-05-18T01:40:02.613774Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:40:02.613774Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/0210497","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":"2026-05-18T01:40:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zYv/m0qwk5sWSoKgzdbkaIJe7khPLD4Kn50WufUVq0aQDTDiPPndXH1u6EoUCu3+8BzFRhr1dwoGfqIvsz8RCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T09:56:31.067182Z"},"content_sha256":"aa193a87d718f995a8da4516491600fa60adc4c138f2a677d5de39a96dacd4cc","schema_version":"1.0","event_id":"sha256:aa193a87d718f995a8da4516491600fa60adc4c138f2a677d5de39a96dacd4cc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2002:5U2CZXVLJFMH254VIRLM2HMH6D","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Numerical and Monte Carlo Bethe ansatz method: 1D Heisenberg model","license":"","headline":"","cross_cats":["cond-mat.stat-mech"],"primary_cat":"cond-mat.str-el","authors_text":"N. M. R. Peres, Shi-Jian Gu, You-Quan Li","submitted_at":"2002-10-22T16:17:44Z","abstract_excerpt":"In this paper we present two new numerical methods for studying thermodynamic quantities of integrable models. As an example of the effectiveness of these two approaches, results from numerical solutions of all sets of Bethe ansatz equations, for small Heisenberg chains, and Monte Carlo simulations in quasi-momentum space, for a relatively larger chains, are presented. Our results agree with those obtained by thermodynamics Bethe ansatz (TBA) and Quantum Transfer Matrix (QTM)."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0210497","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":"2026-05-18T01:40:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xZwBeKoFthzaWee1AdqaQCdgjut6lk8kuG7ppD8bKVJqTYMK/H0TkShrzDeUFrKVr5fLCAnKkD+nKVM+ksmNDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T09:56:31.067923Z"},"content_sha256":"a54b7c27263e326cee0319e92222ae3b5949ea88e8480443ee1ccd5dab92edef","schema_version":"1.0","event_id":"sha256:a54b7c27263e326cee0319e92222ae3b5949ea88e8480443ee1ccd5dab92edef"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5U2CZXVLJFMH254VIRLM2HMH6D/bundle.json","state_url":"https://pith.science/pith/5U2CZXVLJFMH254VIRLM2HMH6D/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5U2CZXVLJFMH254VIRLM2HMH6D/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":"2026-05-31T09:56:31Z","links":{"resolver":"https://pith.science/pith/5U2CZXVLJFMH254VIRLM2HMH6D","bundle":"https://pith.science/pith/5U2CZXVLJFMH254VIRLM2HMH6D/bundle.json","state":"https://pith.science/pith/5U2CZXVLJFMH254VIRLM2HMH6D/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5U2CZXVLJFMH254VIRLM2HMH6D/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2002:5U2CZXVLJFMH254VIRLM2HMH6D","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":"f0bfe5d336e572c411c7f828f031a7bcd692976c2baa05c974d278a3dcaac4c8","cross_cats_sorted":["cond-mat.stat-mech"],"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2002-10-22T16:17:44Z","title_canon_sha256":"958d34f31c21c30722d1c055fd81c325195ccce73059c9e43949984058a7edc2"},"schema_version":"1.0","source":{"id":"cond-mat/0210497","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0210497","created_at":"2026-05-18T01:40:02Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0210497v1","created_at":"2026-05-18T01:40:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0210497","created_at":"2026-05-18T01:40:02Z"},{"alias_kind":"pith_short_12","alias_value":"5U2CZXVLJFMH","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"5U2CZXVLJFMH254V","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"5U2CZXVL","created_at":"2026-05-18T12:25:50Z"}],"graph_snapshots":[{"event_id":"sha256:a54b7c27263e326cee0319e92222ae3b5949ea88e8480443ee1ccd5dab92edef","target":"graph","created_at":"2026-05-18T01:40:02Z","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":"In this paper we present two new numerical methods for studying thermodynamic quantities of integrable models. As an example of the effectiveness of these two approaches, results from numerical solutions of all sets of Bethe ansatz equations, for small Heisenberg chains, and Monte Carlo simulations in quasi-momentum space, for a relatively larger chains, are presented. Our results agree with those obtained by thermodynamics Bethe ansatz (TBA) and Quantum Transfer Matrix (QTM).","authors_text":"N. M. R. Peres, Shi-Jian Gu, You-Quan Li","cross_cats":["cond-mat.stat-mech"],"headline":"","license":"","primary_cat":"cond-mat.str-el","submitted_at":"2002-10-22T16:17:44Z","title":"Numerical and Monte Carlo Bethe ansatz method: 1D Heisenberg model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0210497","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:aa193a87d718f995a8da4516491600fa60adc4c138f2a677d5de39a96dacd4cc","target":"record","created_at":"2026-05-18T01:40:02Z","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":"f0bfe5d336e572c411c7f828f031a7bcd692976c2baa05c974d278a3dcaac4c8","cross_cats_sorted":["cond-mat.stat-mech"],"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2002-10-22T16:17:44Z","title_canon_sha256":"958d34f31c21c30722d1c055fd81c325195ccce73059c9e43949984058a7edc2"},"schema_version":"1.0","source":{"id":"cond-mat/0210497","kind":"arxiv","version":1}},"canonical_sha256":"ed342cdeab49587d77954456cd1d87f0ce168e23dfbf4b4d0a8332a3c2fa2560","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ed342cdeab49587d77954456cd1d87f0ce168e23dfbf4b4d0a8332a3c2fa2560","first_computed_at":"2026-05-18T01:40:02.613774Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:40:02.613774Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"m8JLUOcgwlVd/nSol6HsmyC25b6YgjnESRpEYBhQfLv7igeSozWqyPGzPcjdRYDSpiHwAO5zXN4DvV1urng5Cw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:40:02.614525Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0210497","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:aa193a87d718f995a8da4516491600fa60adc4c138f2a677d5de39a96dacd4cc","sha256:a54b7c27263e326cee0319e92222ae3b5949ea88e8480443ee1ccd5dab92edef"],"state_sha256":"70063701338000d18b7e351f2be271d76a1da94fcbd561f1042b65d0412dce68"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gafgND+P/ccvACbVe59DKdnkeMEasqwrwhn9VeIknKy5/QYC0NsbYNSMv4fqA8DdWs9MYha4T2BkulXAmwBiAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T09:56:31.072215Z","bundle_sha256":"45dcd29c5db28899165a422bf2e446cd47833b90918822c8b5c8939e4ec78e51"}}