{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:XHUA35A4QL5QTJFPWYMZ2XNBVX","short_pith_number":"pith:XHUA35A4","canonical_record":{"source":{"id":"2601.22924","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2026-01-30T12:43:47Z","cross_cats_sorted":[],"title_canon_sha256":"509bf8609c0f7b541ed16d690787aae3cdf99a333e8245a5faee436d56011bd2","abstract_canon_sha256":"4a00ca3e9accc84b521d1cd69a532853ae55ccc8ab7f19aaeef4267aa3e6fea1"},"schema_version":"1.0"},"canonical_sha256":"b9e80df41c82fb09a4afb6199d5da1add3709b68014f86a6d9c1e08468d7dab0","source":{"kind":"arxiv","id":"2601.22924","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2601.22924","created_at":"2026-07-14T02:21:28Z"},{"alias_kind":"arxiv_version","alias_value":"2601.22924v2","created_at":"2026-07-14T02:21:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2601.22924","created_at":"2026-07-14T02:21:28Z"},{"alias_kind":"pith_short_12","alias_value":"XHUA35A4QL5Q","created_at":"2026-07-14T02:21:28Z"},{"alias_kind":"pith_short_16","alias_value":"XHUA35A4QL5QTJFP","created_at":"2026-07-14T02:21:28Z"},{"alias_kind":"pith_short_8","alias_value":"XHUA35A4","created_at":"2026-07-14T02:21:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:XHUA35A4QL5QTJFPWYMZ2XNBVX","target":"record","payload":{"canonical_record":{"source":{"id":"2601.22924","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2026-01-30T12:43:47Z","cross_cats_sorted":[],"title_canon_sha256":"509bf8609c0f7b541ed16d690787aae3cdf99a333e8245a5faee436d56011bd2","abstract_canon_sha256":"4a00ca3e9accc84b521d1cd69a532853ae55ccc8ab7f19aaeef4267aa3e6fea1"},"schema_version":"1.0"},"canonical_sha256":"b9e80df41c82fb09a4afb6199d5da1add3709b68014f86a6d9c1e08468d7dab0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-14T02:21:28.528879Z","signature_b64":"2CWDlBiOGTx1LDGu/jGEocGwijWpOTetcmAI5b1ShKxNFoYW+p1c0ZD2Px/scMoMB6HXjLmR+ljjzFWPpe54Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b9e80df41c82fb09a4afb6199d5da1add3709b68014f86a6d9c1e08468d7dab0","last_reissued_at":"2026-07-14T02:21:28.527930Z","signature_status":"signed_v1","first_computed_at":"2026-07-14T02:21:28.527930Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2601.22924","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":"2026-07-14T02:21:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fu0lGuWgovbxdG1Iz/po3OtgWscZM6XHiquWIq0ueBLjwTjQupV/c9JKMlPR8iGpKThxZxQ/HFmSgbNossUbBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-31T23:38:32.645141Z"},"content_sha256":"3ad00b373591dab036ff8b481fc94bc9997d321433c3c2b3b7dddc35393c4e58","schema_version":"1.0","event_id":"sha256:3ad00b373591dab036ff8b481fc94bc9997d321433c3c2b3b7dddc35393c4e58"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:XHUA35A4QL5QTJFPWYMZ2XNBVX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spiral Phase and Phase Diagram of the $S$=1/2 XXZ Model on the Shastry-Sutherland Lattice","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Dao-Xin Yao, Han-Qing Wu, Muwei Wu, Zhengpeng Yuan","submitted_at":"2026-01-30T12:43:47Z","abstract_excerpt":"We investigate the ground-state phase diagram of the $S$=1/2 XXZ model on the two-dimensional Shastry-Sutherland lattice using exact diagonalization (ED), density-matrix renormalization group (DMRG), and cluster mean-field theory (CMFT) with DMRG as a solver. In the isotropic case ($\\Delta=1$), CMFT results reveal an intermediate empty plaquette (EP) phase that has a lower energy than the full plaquette (FP) phase. However, due to mean-field artifacts, CMFT alone is not suitable for accurately determining phase boundaries. Therefore, we combined three methods to map out the reliable phase diag"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2601.22924","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2601.22924/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":"2026-07-14T02:21:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oX6rsemWvc07aCIwA7Pft9K7cOGh2MXVPaH2cDG+F8rLcLnHqxWycBXwkmbFhKLlSVYO05Y5AoecldocYaluCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-31T23:38:32.646180Z"},"content_sha256":"a928132a28abbfb1667f9acf3ca5df8a2552d6d042acbd4ef9f989240dc37cfb","schema_version":"1.0","event_id":"sha256:a928132a28abbfb1667f9acf3ca5df8a2552d6d042acbd4ef9f989240dc37cfb"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XHUA35A4QL5QTJFPWYMZ2XNBVX/bundle.json","state_url":"https://pith.science/pith/XHUA35A4QL5QTJFPWYMZ2XNBVX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XHUA35A4QL5QTJFPWYMZ2XNBVX/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":"2026-07-31T23:38:32Z","links":{"resolver":"https://pith.science/pith/XHUA35A4QL5QTJFPWYMZ2XNBVX","bundle":"https://pith.science/pith/XHUA35A4QL5QTJFPWYMZ2XNBVX/bundle.json","state":"https://pith.science/pith/XHUA35A4QL5QTJFPWYMZ2XNBVX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XHUA35A4QL5QTJFPWYMZ2XNBVX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:XHUA35A4QL5QTJFPWYMZ2XNBVX","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":"4a00ca3e9accc84b521d1cd69a532853ae55ccc8ab7f19aaeef4267aa3e6fea1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2026-01-30T12:43:47Z","title_canon_sha256":"509bf8609c0f7b541ed16d690787aae3cdf99a333e8245a5faee436d56011bd2"},"schema_version":"1.0","source":{"id":"2601.22924","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2601.22924","created_at":"2026-07-14T02:21:28Z"},{"alias_kind":"arxiv_version","alias_value":"2601.22924v2","created_at":"2026-07-14T02:21:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2601.22924","created_at":"2026-07-14T02:21:28Z"},{"alias_kind":"pith_short_12","alias_value":"XHUA35A4QL5Q","created_at":"2026-07-14T02:21:28Z"},{"alias_kind":"pith_short_16","alias_value":"XHUA35A4QL5QTJFP","created_at":"2026-07-14T02:21:28Z"},{"alias_kind":"pith_short_8","alias_value":"XHUA35A4","created_at":"2026-07-14T02:21:28Z"}],"graph_snapshots":[{"event_id":"sha256:a928132a28abbfb1667f9acf3ca5df8a2552d6d042acbd4ef9f989240dc37cfb","target":"graph","created_at":"2026-07-14T02:21:28Z","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/2601.22924/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We investigate the ground-state phase diagram of the $S$=1/2 XXZ model on the two-dimensional Shastry-Sutherland lattice using exact diagonalization (ED), density-matrix renormalization group (DMRG), and cluster mean-field theory (CMFT) with DMRG as a solver. In the isotropic case ($\\Delta=1$), CMFT results reveal an intermediate empty plaquette (EP) phase that has a lower energy than the full plaquette (FP) phase. However, due to mean-field artifacts, CMFT alone is not suitable for accurately determining phase boundaries. Therefore, we combined three methods to map out the reliable phase diag","authors_text":"Dao-Xin Yao, Han-Qing Wu, Muwei Wu, Zhengpeng Yuan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2026-01-30T12:43:47Z","title":"Spiral Phase and Phase Diagram of the $S$=1/2 XXZ Model on the Shastry-Sutherland Lattice"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2601.22924","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":"sha256:3ad00b373591dab036ff8b481fc94bc9997d321433c3c2b3b7dddc35393c4e58","target":"record","created_at":"2026-07-14T02:21:28Z","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":"4a00ca3e9accc84b521d1cd69a532853ae55ccc8ab7f19aaeef4267aa3e6fea1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2026-01-30T12:43:47Z","title_canon_sha256":"509bf8609c0f7b541ed16d690787aae3cdf99a333e8245a5faee436d56011bd2"},"schema_version":"1.0","source":{"id":"2601.22924","kind":"arxiv","version":2}},"canonical_sha256":"b9e80df41c82fb09a4afb6199d5da1add3709b68014f86a6d9c1e08468d7dab0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b9e80df41c82fb09a4afb6199d5da1add3709b68014f86a6d9c1e08468d7dab0","first_computed_at":"2026-07-14T02:21:28.527930Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-14T02:21:28.527930Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2CWDlBiOGTx1LDGu/jGEocGwijWpOTetcmAI5b1ShKxNFoYW+p1c0ZD2Px/scMoMB6HXjLmR+ljjzFWPpe54Bw==","signature_status":"signed_v1","signed_at":"2026-07-14T02:21:28.528879Z","signed_message":"canonical_sha256_bytes"},"source_id":"2601.22924","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3ad00b373591dab036ff8b481fc94bc9997d321433c3c2b3b7dddc35393c4e58","sha256:a928132a28abbfb1667f9acf3ca5df8a2552d6d042acbd4ef9f989240dc37cfb"],"state_sha256":"5b488b3da1043f8602d5eb16334478ea0daff573580bc3dbc4a23cd01dbb50ed"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VwUXRYllvGUF4dlLoCTdokCK4evc+FLBX84ovcmGobmj7ql/5QDh+0qdN0RUj0UAGFVQnYgbuh2QUp87CPdYDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-31T23:38:32.651436Z","bundle_sha256":"3a2b5ccfe5320eab9294b40ca117058a2409559e4e48e8204a52b0796af6eb2d"}}