{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:5YPF4JAPXPICLQS642GCC6SXTY","short_pith_number":"pith:5YPF4JAP","canonical_record":{"source":{"id":"2605.19831","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2026-05-19T13:24:39Z","cross_cats_sorted":[],"title_canon_sha256":"4f83da3a60d3d2bd153d59922509d9c66b15f9143d1c2371020c07f69819334a","abstract_canon_sha256":"941615c0a9b46b516614b2821b7b4be710221ffa7e86d56ca9da720c34518ae5"},"schema_version":"1.0"},"canonical_sha256":"ee1e5e240fbbd025c25ee68c217a579e392f63b5ae4f735459e7c6cad69743e7","source":{"kind":"arxiv","id":"2605.19831","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.19831","created_at":"2026-05-20T01:06:16Z"},{"alias_kind":"arxiv_version","alias_value":"2605.19831v1","created_at":"2026-05-20T01:06:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.19831","created_at":"2026-05-20T01:06:16Z"},{"alias_kind":"pith_short_12","alias_value":"5YPF4JAPXPIC","created_at":"2026-05-20T01:06:16Z"},{"alias_kind":"pith_short_16","alias_value":"5YPF4JAPXPICLQS6","created_at":"2026-05-20T01:06:16Z"},{"alias_kind":"pith_short_8","alias_value":"5YPF4JAP","created_at":"2026-05-20T01:06:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:5YPF4JAPXPICLQS642GCC6SXTY","target":"record","payload":{"canonical_record":{"source":{"id":"2605.19831","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2026-05-19T13:24:39Z","cross_cats_sorted":[],"title_canon_sha256":"4f83da3a60d3d2bd153d59922509d9c66b15f9143d1c2371020c07f69819334a","abstract_canon_sha256":"941615c0a9b46b516614b2821b7b4be710221ffa7e86d56ca9da720c34518ae5"},"schema_version":"1.0"},"canonical_sha256":"ee1e5e240fbbd025c25ee68c217a579e392f63b5ae4f735459e7c6cad69743e7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-20T01:06:16.738654Z","signature_b64":"3Al64vPlWqSfJTwbphCw/S3E+AWasNmprUSLXRnKsYgDawq8NWAdktoesXrqh9wIZX361PEYtgppbRUAGh+/Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ee1e5e240fbbd025c25ee68c217a579e392f63b5ae4f735459e7c6cad69743e7","last_reissued_at":"2026-05-20T01:06:16.737838Z","signature_status":"signed_v1","first_computed_at":"2026-05-20T01:06:16.737838Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2605.19831","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":"2026-05-20T01:06:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Kzk60lD+t1KgwkzTql5A5InjKB667H5CGSwAgndrwGjzgiRSuvWmI/8nklcRSlOlmoB/a3ZXta0PWNVO37DpAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T03:33:52.274704Z"},"content_sha256":"deb177bc2e823efeee29f04212ff3227df9d0642cbd3b99c36856bfa25f6af37","schema_version":"1.0","event_id":"sha256:deb177bc2e823efeee29f04212ff3227df9d0642cbd3b99c36856bfa25f6af37"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:5YPF4JAPXPICLQS642GCC6SXTY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ground-state Entropy of the Ising model on a Frustrated lattice","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.stat-mech","authors_text":"Afonso Rufino, Bill Sutherland, B Sriram Shastry, Fr\\'ed\\'eric Mila","submitted_at":"2026-05-19T13:24:39Z","abstract_excerpt":"We report the ground-state entropy of a 2-d Ising model on the Shastry-Sutherland lattice. We also study a generalization of this model, where a constraint on the zero temperature allowed configurations is removed continuously."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.19831","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2605.19831/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-05-20T01:06:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"99fxEYIxgZlHWH1/ZkOmz18cUTT0kbY7fpSSf3xdjvsPxUusuInUNaCHhpG+9kpoBTZl42P3WSvOqOzUHqOCAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T03:33:52.275092Z"},"content_sha256":"8d1450c6c4c08205903a8600a827ab0cf520f7a88a3bd7f321281abcba486853","schema_version":"1.0","event_id":"sha256:8d1450c6c4c08205903a8600a827ab0cf520f7a88a3bd7f321281abcba486853"},{"event_type":"integrity_finding","subject_pith_number":"pith:2026:5YPF4JAPXPICLQS642GCC6SXTY","target":"integrity","payload":{"note":"DOI in the printed bibliography is fragmented by whitespace or line breaks. A longer candidate (10.5334/jors.cb.REFERENCES18) was visible in the surrounding text but could not be confirmed against doi.org as printed.","snippet":"John G. Wright and B. S. Shastry, ”DiracQ: A Quantum Many- Body Physics Package”, arXiv:1301.4494[cond-mat.str-el] (2013), Journal of Open Research Software, 3(1) e13 (2015); DOI: https://doi.org/10.5334/jors.cb. REFERENCES18","arxiv_id":"2605.19831","detector":"doi_compliance","evidence":{"ref_index":18,"verdict_class":"incontrovertible","resolved_title":null,"printed_excerpt":"John G. Wright and B. S. Shastry, ”DiracQ: A Quantum Many- Body Physics Package”, arXiv:1301.4494[cond-mat.str-el] (2013), Journal of Open Research Software, 3(1) e13 (2015); DOI: https://doi.org/10.5334/jors.cb. REFERENCES18","reconstructed_doi":"10.5334/jors.cb.REFERENCES18"},"severity":"advisory","ref_index":18,"audited_at":"2026-05-20T02:16:13.633966Z","event_type":"pith.integrity.v1","detected_doi":"10.5334/jors.cb.REFERENCES18","detector_url":"https://pith.science/pith-integrity-protocol#doi_compliance","external_url":null,"finding_type":"recoverable_identifier","evidence_hash":"1e0b5e4262020e186c73a3a4d1a593a66852d6f5a861763d5a3e6198efeea0df","paper_version":1,"verdict_class":"incontrovertible","resolved_title":null,"detector_version":"1.0.0","detected_arxiv_id":null,"integrity_event_id":4301,"payload_sha256":"de8d92183b52180315e9c7f2246b2f92412c95bd3d4db4846bac3164dc609cbe","signature_b64":"zPpVKZEw157Zq7JICoCLaCR58NkfsIkxjHSGePxMAmlC8MI/y2E5B/WcAbXWzKylvEO68EKgPtminx+kh1VEAw==","signing_key_id":"pith-v1-2026-05"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-20T02:17:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fo+NpBxjEpGzTr6sZXnzEM3TQeRMVIi46WtSKyj3j4uRaUBo9vy8VRYX6jnBlItzL3latxxjFgxwqfnux8HGAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T03:33:52.276014Z"},"content_sha256":"de27bc5624439bb33f3769b5cea2c918532d9326c63efb55f6cb730da010d261","schema_version":"1.0","event_id":"sha256:de27bc5624439bb33f3769b5cea2c918532d9326c63efb55f6cb730da010d261"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5YPF4JAPXPICLQS642GCC6SXTY/bundle.json","state_url":"https://pith.science/pith/5YPF4JAPXPICLQS642GCC6SXTY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5YPF4JAPXPICLQS642GCC6SXTY/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":"2026-05-21T03:33:52Z","links":{"resolver":"https://pith.science/pith/5YPF4JAPXPICLQS642GCC6SXTY","bundle":"https://pith.science/pith/5YPF4JAPXPICLQS642GCC6SXTY/bundle.json","state":"https://pith.science/pith/5YPF4JAPXPICLQS642GCC6SXTY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5YPF4JAPXPICLQS642GCC6SXTY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:5YPF4JAPXPICLQS642GCC6SXTY","merge_version":"pith-open-graph-merge-v1","event_count":3,"valid_event_count":3,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"941615c0a9b46b516614b2821b7b4be710221ffa7e86d56ca9da720c34518ae5","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2026-05-19T13:24:39Z","title_canon_sha256":"4f83da3a60d3d2bd153d59922509d9c66b15f9143d1c2371020c07f69819334a"},"schema_version":"1.0","source":{"id":"2605.19831","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.19831","created_at":"2026-05-20T01:06:16Z"},{"alias_kind":"arxiv_version","alias_value":"2605.19831v1","created_at":"2026-05-20T01:06:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.19831","created_at":"2026-05-20T01:06:16Z"},{"alias_kind":"pith_short_12","alias_value":"5YPF4JAPXPIC","created_at":"2026-05-20T01:06:16Z"},{"alias_kind":"pith_short_16","alias_value":"5YPF4JAPXPICLQS6","created_at":"2026-05-20T01:06:16Z"},{"alias_kind":"pith_short_8","alias_value":"5YPF4JAP","created_at":"2026-05-20T01:06:16Z"}],"graph_snapshots":[{"event_id":"sha256:8d1450c6c4c08205903a8600a827ab0cf520f7a88a3bd7f321281abcba486853","target":"graph","created_at":"2026-05-20T01:06:16Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2605.19831/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report the ground-state entropy of a 2-d Ising model on the Shastry-Sutherland lattice. We also study a generalization of this model, where a constraint on the zero temperature allowed configurations is removed continuously.","authors_text":"Afonso Rufino, Bill Sutherland, B Sriram Shastry, Fr\\'ed\\'eric Mila","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2026-05-19T13:24:39Z","title":"Ground-state Entropy of the Ising model on a Frustrated lattice"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.19831","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:deb177bc2e823efeee29f04212ff3227df9d0642cbd3b99c36856bfa25f6af37","target":"record","created_at":"2026-05-20T01:06:16Z","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":"941615c0a9b46b516614b2821b7b4be710221ffa7e86d56ca9da720c34518ae5","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2026-05-19T13:24:39Z","title_canon_sha256":"4f83da3a60d3d2bd153d59922509d9c66b15f9143d1c2371020c07f69819334a"},"schema_version":"1.0","source":{"id":"2605.19831","kind":"arxiv","version":1}},"canonical_sha256":"ee1e5e240fbbd025c25ee68c217a579e392f63b5ae4f735459e7c6cad69743e7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ee1e5e240fbbd025c25ee68c217a579e392f63b5ae4f735459e7c6cad69743e7","first_computed_at":"2026-05-20T01:06:16.737838Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-20T01:06:16.737838Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3Al64vPlWqSfJTwbphCw/S3E+AWasNmprUSLXRnKsYgDawq8NWAdktoesXrqh9wIZX361PEYtgppbRUAGh+/Bg==","signature_status":"signed_v1","signed_at":"2026-05-20T01:06:16.738654Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.19831","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:deb177bc2e823efeee29f04212ff3227df9d0642cbd3b99c36856bfa25f6af37","sha256:8d1450c6c4c08205903a8600a827ab0cf520f7a88a3bd7f321281abcba486853","sha256:de27bc5624439bb33f3769b5cea2c918532d9326c63efb55f6cb730da010d261"],"state_sha256":"e414d6a5ab4bfd1baa7e8a4834736e70199e7ea7ef49443e23c9001ef7d6de92"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YvrNlS/DB2NsctwGnFaqSwK9oYEC2+MJZbk+38qlIakEVrErIppV3oPF56kw+hKu3xlOvJr2GHqPglDsBhwzAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-21T03:33:52.278027Z","bundle_sha256":"2135a88614faf67f0c9169035f09d04e7fcb210642d433f601e77d2ddeb8a83b"}}