{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:2KVKFRWSUPMEFFFUMZDOOV4CVE","short_pith_number":"pith:2KVKFRWS","canonical_record":{"source":{"id":"1510.08655","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-10-29T11:40:09Z","cross_cats_sorted":[],"title_canon_sha256":"9aeb720cba6e8630e898a81c8a1f4be498adf39664b5548dccce8ee2aba63a0f","abstract_canon_sha256":"e91a7b3c4cb1108e64c82b627d5681a01cc9e3f7634125d0f7e36b529549d4d5"},"schema_version":"1.0"},"canonical_sha256":"d2aaa2c6d2a3d84294b46646e75782a93ff42137f41716211769ff906ab1388d","source":{"kind":"arxiv","id":"1510.08655","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.08655","created_at":"2026-05-18T01:19:29Z"},{"alias_kind":"arxiv_version","alias_value":"1510.08655v2","created_at":"2026-05-18T01:19:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.08655","created_at":"2026-05-18T01:19:29Z"},{"alias_kind":"pith_short_12","alias_value":"2KVKFRWSUPME","created_at":"2026-05-18T12:29:02Z"},{"alias_kind":"pith_short_16","alias_value":"2KVKFRWSUPMEFFFU","created_at":"2026-05-18T12:29:02Z"},{"alias_kind":"pith_short_8","alias_value":"2KVKFRWS","created_at":"2026-05-18T12:29:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:2KVKFRWSUPMEFFFUMZDOOV4CVE","target":"record","payload":{"canonical_record":{"source":{"id":"1510.08655","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-10-29T11:40:09Z","cross_cats_sorted":[],"title_canon_sha256":"9aeb720cba6e8630e898a81c8a1f4be498adf39664b5548dccce8ee2aba63a0f","abstract_canon_sha256":"e91a7b3c4cb1108e64c82b627d5681a01cc9e3f7634125d0f7e36b529549d4d5"},"schema_version":"1.0"},"canonical_sha256":"d2aaa2c6d2a3d84294b46646e75782a93ff42137f41716211769ff906ab1388d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:19:29.029747Z","signature_b64":"OBXf3rESB/gTld6hA1joemRQ5ajWZdj5D8J15eA24guYFA4czPuccSxM3/DY4THnRksCneUThFv/k3QoEXNqBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d2aaa2c6d2a3d84294b46646e75782a93ff42137f41716211769ff906ab1388d","last_reissued_at":"2026-05-18T01:19:29.029109Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:19:29.029109Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1510.08655","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":"2026-05-18T01:19:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ej9CJXxhVvVlI04SDRyQb6oi+twOuIhzAfQ2wdhh+9r5Acxf8Tfq+VW//kGEIyK36RCKT7hMB4jAxC4ix2d8DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T22:39:01.182886Z"},"content_sha256":"c76c53dfb41d175aeedf0ae1b7b302aab08543b364d7c0d18cbf428737a9d3de","schema_version":"1.0","event_id":"sha256:c76c53dfb41d175aeedf0ae1b7b302aab08543b364d7c0d18cbf428737a9d3de"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:2KVKFRWSUPMEFFFUMZDOOV4CVE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Heisenberg antiferromagnet on the Husimi lattice","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"B. Normand, H. D. Xie, H. J. Liao, J. Chen, T. Xiang, X. J. Han, Z. Y. Xie","submitted_at":"2015-10-29T11:40:09Z","abstract_excerpt":"We perform a systematic study of the antiferromagnetic Heisenberg model on the Husimi lattice using numerical tensor-network methods based on Projected Entangled Simplex States (PESS). The nature of the ground state varies strongly with the spin quantum number, $S$. For $S = 1/2$, it is an algebraic (gapless) quantum spin liquid. For $S = 1$, it is a gapped, non-magnetic state with spontaneous breaking of triangle symmetry (a trimerized simplex-solid state). For $S = 2$, it is a simplex-solid state with a spin gap and no symmetry-breaking; both integer-spin simplex-solid states are characteriz"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.08655","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":""},"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":"2026-05-18T01:19:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"g4XzOZGfSJsihiUdF1EDlmdMBv3t4z9mFGCk4CdHctARuFEog0o+8OKy6sNRdsyeDsrqqUtKEDthQ2UMRru+Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T22:39:01.183456Z"},"content_sha256":"c6c4348404c4678b7f4e3d83ee862dba7320f95ee720f0f9ca1a07b5b8e7df12","schema_version":"1.0","event_id":"sha256:c6c4348404c4678b7f4e3d83ee862dba7320f95ee720f0f9ca1a07b5b8e7df12"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2KVKFRWSUPMEFFFUMZDOOV4CVE/bundle.json","state_url":"https://pith.science/pith/2KVKFRWSUPMEFFFUMZDOOV4CVE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2KVKFRWSUPMEFFFUMZDOOV4CVE/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":"2026-06-01T22:39:01Z","links":{"resolver":"https://pith.science/pith/2KVKFRWSUPMEFFFUMZDOOV4CVE","bundle":"https://pith.science/pith/2KVKFRWSUPMEFFFUMZDOOV4CVE/bundle.json","state":"https://pith.science/pith/2KVKFRWSUPMEFFFUMZDOOV4CVE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2KVKFRWSUPMEFFFUMZDOOV4CVE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:2KVKFRWSUPMEFFFUMZDOOV4CVE","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":"e91a7b3c4cb1108e64c82b627d5681a01cc9e3f7634125d0f7e36b529549d4d5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-10-29T11:40:09Z","title_canon_sha256":"9aeb720cba6e8630e898a81c8a1f4be498adf39664b5548dccce8ee2aba63a0f"},"schema_version":"1.0","source":{"id":"1510.08655","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.08655","created_at":"2026-05-18T01:19:29Z"},{"alias_kind":"arxiv_version","alias_value":"1510.08655v2","created_at":"2026-05-18T01:19:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.08655","created_at":"2026-05-18T01:19:29Z"},{"alias_kind":"pith_short_12","alias_value":"2KVKFRWSUPME","created_at":"2026-05-18T12:29:02Z"},{"alias_kind":"pith_short_16","alias_value":"2KVKFRWSUPMEFFFU","created_at":"2026-05-18T12:29:02Z"},{"alias_kind":"pith_short_8","alias_value":"2KVKFRWS","created_at":"2026-05-18T12:29:02Z"}],"graph_snapshots":[{"event_id":"sha256:c6c4348404c4678b7f4e3d83ee862dba7320f95ee720f0f9ca1a07b5b8e7df12","target":"graph","created_at":"2026-05-18T01:19:29Z","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 perform a systematic study of the antiferromagnetic Heisenberg model on the Husimi lattice using numerical tensor-network methods based on Projected Entangled Simplex States (PESS). The nature of the ground state varies strongly with the spin quantum number, $S$. For $S = 1/2$, it is an algebraic (gapless) quantum spin liquid. For $S = 1$, it is a gapped, non-magnetic state with spontaneous breaking of triangle symmetry (a trimerized simplex-solid state). For $S = 2$, it is a simplex-solid state with a spin gap and no symmetry-breaking; both integer-spin simplex-solid states are characteriz","authors_text":"B. Normand, H. D. Xie, H. J. Liao, J. Chen, T. Xiang, X. J. Han, Z. Y. Xie","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-10-29T11:40:09Z","title":"Heisenberg antiferromagnet on the Husimi lattice"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.08655","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:c76c53dfb41d175aeedf0ae1b7b302aab08543b364d7c0d18cbf428737a9d3de","target":"record","created_at":"2026-05-18T01:19:29Z","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":"e91a7b3c4cb1108e64c82b627d5681a01cc9e3f7634125d0f7e36b529549d4d5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-10-29T11:40:09Z","title_canon_sha256":"9aeb720cba6e8630e898a81c8a1f4be498adf39664b5548dccce8ee2aba63a0f"},"schema_version":"1.0","source":{"id":"1510.08655","kind":"arxiv","version":2}},"canonical_sha256":"d2aaa2c6d2a3d84294b46646e75782a93ff42137f41716211769ff906ab1388d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d2aaa2c6d2a3d84294b46646e75782a93ff42137f41716211769ff906ab1388d","first_computed_at":"2026-05-18T01:19:29.029109Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:19:29.029109Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OBXf3rESB/gTld6hA1joemRQ5ajWZdj5D8J15eA24guYFA4czPuccSxM3/DY4THnRksCneUThFv/k3QoEXNqBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:19:29.029747Z","signed_message":"canonical_sha256_bytes"},"source_id":"1510.08655","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c76c53dfb41d175aeedf0ae1b7b302aab08543b364d7c0d18cbf428737a9d3de","sha256:c6c4348404c4678b7f4e3d83ee862dba7320f95ee720f0f9ca1a07b5b8e7df12"],"state_sha256":"864f8f9b5cf2ea17f080a3f44635860e834310a816241f96a026e6afd8f12e55"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iPYlPLLb8v9kkrK69k7mn+gz6J42PyTm+wESoFG1/08Dz8cgnPeCfMeigyeecYQF9u0Ygv2QkuXBZuAML9ddBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T22:39:01.188205Z","bundle_sha256":"3febe5e99f93899023f3f098a638f2ad5f10c8e16115c21ee90e0913dc4a8d1a"}}