{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:KRCGEXIOPGSF4RUVL4RHFLRHQA","short_pith_number":"pith:KRCGEXIO","canonical_record":{"source":{"id":"0910.2218","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2009-10-12T19:11:51Z","cross_cats_sorted":[],"title_canon_sha256":"dad2e39b2cf8047ea0e8719e5d629893f562fd69d0391b461c3ef4c9c54fd292","abstract_canon_sha256":"6c2901474cbeabc6f10d84c2da616eb2c78cec9f8703c49e5ff2faf0a32fd574"},"schema_version":"1.0"},"canonical_sha256":"5444625d0e79a45e46955f2272ae27802ca823dec17704ed977ee258e252a9da","source":{"kind":"arxiv","id":"0910.2218","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0910.2218","created_at":"2026-05-18T04:19:04Z"},{"alias_kind":"arxiv_version","alias_value":"0910.2218v1","created_at":"2026-05-18T04:19:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0910.2218","created_at":"2026-05-18T04:19:04Z"},{"alias_kind":"pith_short_12","alias_value":"KRCGEXIOPGSF","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_16","alias_value":"KRCGEXIOPGSF4RUV","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_8","alias_value":"KRCGEXIO","created_at":"2026-05-18T12:26:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:KRCGEXIOPGSF4RUVL4RHFLRHQA","target":"record","payload":{"canonical_record":{"source":{"id":"0910.2218","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2009-10-12T19:11:51Z","cross_cats_sorted":[],"title_canon_sha256":"dad2e39b2cf8047ea0e8719e5d629893f562fd69d0391b461c3ef4c9c54fd292","abstract_canon_sha256":"6c2901474cbeabc6f10d84c2da616eb2c78cec9f8703c49e5ff2faf0a32fd574"},"schema_version":"1.0"},"canonical_sha256":"5444625d0e79a45e46955f2272ae27802ca823dec17704ed977ee258e252a9da","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:19:04.513137Z","signature_b64":"98p+BanKFyBzYqG9XXbvaFHNs+lYpN/fNA4qgyANvwIfoOSAA13umljHFCNoPW6DqHRSnBvwoYiizFEMvuZvDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5444625d0e79a45e46955f2272ae27802ca823dec17704ed977ee258e252a9da","last_reissued_at":"2026-05-18T04:19:04.512687Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:19:04.512687Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0910.2218","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":"2026-05-18T04:19:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vGB7JiyEj/PaIzJG3OL07QnquYxkbsCzV0gSVLF1Py8zvvkqbwtYBkDlJqNQM6cHiQ85ZTUp21p5Zb1tUJXlDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T21:38:23.906468Z"},"content_sha256":"22ac536e282846ef376569685d73dac1c00cdbb7e162bed7e1acb8f978024b23","schema_version":"1.0","event_id":"sha256:22ac536e282846ef376569685d73dac1c00cdbb7e162bed7e1acb8f978024b23"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:KRCGEXIOPGSF4RUVL4RHFLRHQA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Finite size analysis of a two-dimensional Ising model within a nonextensive approach","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.stat-mech","authors_text":"A. M. Souza, D. O. Soares-Pinto, I. S. Oliveira, M. S. Reis, N. Crokidakis, R. S. Sarthour","submitted_at":"2009-10-12T19:11:51Z","abstract_excerpt":"In this work we present a thorough analysis of the phase transitions that occur in a ferromagnetic 2D Ising model, with only nearest-neighbors interactions, in the framework of the Tsallis nonextensive statistics. We performed Monte Carlo simulations on square lattices with linear sizes L ranging from 32 up to 512. The statistical weight of the Metropolis algorithm was changed according to the nonextensive statistics. Discontinuities in the m(T) curve are observed for $q\\leq 0.5$. However, we have verified only one peak on the energy histograms at the critical temperatures, indicating the occu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0910.2218","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":"2026-05-18T04:19:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WKWKvsxyGJ54CoJaEC2i1IiJonZiPCAZwqTV6hLTBTTMIiv+ZaROi9zysgw/+CONvDdwK1/cQSWBuhzsap1mCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T21:38:23.907034Z"},"content_sha256":"a01df51d8b094a8fc66d4b2a9641c52481cba804fa2c8bf2bf3ede8170f832e3","schema_version":"1.0","event_id":"sha256:a01df51d8b094a8fc66d4b2a9641c52481cba804fa2c8bf2bf3ede8170f832e3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KRCGEXIOPGSF4RUVL4RHFLRHQA/bundle.json","state_url":"https://pith.science/pith/KRCGEXIOPGSF4RUVL4RHFLRHQA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KRCGEXIOPGSF4RUVL4RHFLRHQA/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":"2026-05-30T21:38:23Z","links":{"resolver":"https://pith.science/pith/KRCGEXIOPGSF4RUVL4RHFLRHQA","bundle":"https://pith.science/pith/KRCGEXIOPGSF4RUVL4RHFLRHQA/bundle.json","state":"https://pith.science/pith/KRCGEXIOPGSF4RUVL4RHFLRHQA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KRCGEXIOPGSF4RUVL4RHFLRHQA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:KRCGEXIOPGSF4RUVL4RHFLRHQA","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":"6c2901474cbeabc6f10d84c2da616eb2c78cec9f8703c49e5ff2faf0a32fd574","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2009-10-12T19:11:51Z","title_canon_sha256":"dad2e39b2cf8047ea0e8719e5d629893f562fd69d0391b461c3ef4c9c54fd292"},"schema_version":"1.0","source":{"id":"0910.2218","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0910.2218","created_at":"2026-05-18T04:19:04Z"},{"alias_kind":"arxiv_version","alias_value":"0910.2218v1","created_at":"2026-05-18T04:19:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0910.2218","created_at":"2026-05-18T04:19:04Z"},{"alias_kind":"pith_short_12","alias_value":"KRCGEXIOPGSF","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_16","alias_value":"KRCGEXIOPGSF4RUV","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_8","alias_value":"KRCGEXIO","created_at":"2026-05-18T12:26:00Z"}],"graph_snapshots":[{"event_id":"sha256:a01df51d8b094a8fc66d4b2a9641c52481cba804fa2c8bf2bf3ede8170f832e3","target":"graph","created_at":"2026-05-18T04:19:04Z","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 work we present a thorough analysis of the phase transitions that occur in a ferromagnetic 2D Ising model, with only nearest-neighbors interactions, in the framework of the Tsallis nonextensive statistics. We performed Monte Carlo simulations on square lattices with linear sizes L ranging from 32 up to 512. The statistical weight of the Metropolis algorithm was changed according to the nonextensive statistics. Discontinuities in the m(T) curve are observed for $q\\leq 0.5$. However, we have verified only one peak on the energy histograms at the critical temperatures, indicating the occu","authors_text":"A. M. Souza, D. O. Soares-Pinto, I. S. Oliveira, M. S. Reis, N. Crokidakis, R. S. Sarthour","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2009-10-12T19:11:51Z","title":"Finite size analysis of a two-dimensional Ising model within a nonextensive approach"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0910.2218","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":"sha256:22ac536e282846ef376569685d73dac1c00cdbb7e162bed7e1acb8f978024b23","target":"record","created_at":"2026-05-18T04:19:04Z","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":"6c2901474cbeabc6f10d84c2da616eb2c78cec9f8703c49e5ff2faf0a32fd574","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2009-10-12T19:11:51Z","title_canon_sha256":"dad2e39b2cf8047ea0e8719e5d629893f562fd69d0391b461c3ef4c9c54fd292"},"schema_version":"1.0","source":{"id":"0910.2218","kind":"arxiv","version":1}},"canonical_sha256":"5444625d0e79a45e46955f2272ae27802ca823dec17704ed977ee258e252a9da","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5444625d0e79a45e46955f2272ae27802ca823dec17704ed977ee258e252a9da","first_computed_at":"2026-05-18T04:19:04.512687Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:19:04.512687Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"98p+BanKFyBzYqG9XXbvaFHNs+lYpN/fNA4qgyANvwIfoOSAA13umljHFCNoPW6DqHRSnBvwoYiizFEMvuZvDg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:19:04.513137Z","signed_message":"canonical_sha256_bytes"},"source_id":"0910.2218","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:22ac536e282846ef376569685d73dac1c00cdbb7e162bed7e1acb8f978024b23","sha256:a01df51d8b094a8fc66d4b2a9641c52481cba804fa2c8bf2bf3ede8170f832e3"],"state_sha256":"a04520c458ebc2c92cfc85aec5aa53b578ee54777248e920c6886c327e231808"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ufsh6sdySoyR7POFuTEUsmcAoq9aKSyWXNMKkg+rtYtzkXs4w+VgrhCLc2oyjK96sH8WBvxyECaTpVtxChA1CA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T21:38:23.910170Z","bundle_sha256":"65921adaad1b78a167b19b8171d702bb5ce129f3e0a821c41a6029659a1c1710"}}