{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:5VLTHDK3ZZHJXW6XUADZU36WLM","short_pith_number":"pith:5VLTHDK3","canonical_record":{"source":{"id":"1408.0022","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-07-31T20:30:20Z","cross_cats_sorted":[],"title_canon_sha256":"59d69d7a5af77659a28abfdc0e02c4dcc99ffb8df65a111281fddf705884b0e8","abstract_canon_sha256":"42256edd9d9b5fbb6c2b838861ae8fc8808d22c5c2815bcad1fc06f2dfd77879"},"schema_version":"1.0"},"canonical_sha256":"ed57338d5bce4e9bdbd7a0079a6fd65b0e2024ecec0faf5df9575fad5a45ca4b","source":{"kind":"arxiv","id":"1408.0022","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1408.0022","created_at":"2026-05-18T02:32:38Z"},{"alias_kind":"arxiv_version","alias_value":"1408.0022v2","created_at":"2026-05-18T02:32:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1408.0022","created_at":"2026-05-18T02:32:38Z"},{"alias_kind":"pith_short_12","alias_value":"5VLTHDK3ZZHJ","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_16","alias_value":"5VLTHDK3ZZHJXW6X","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_8","alias_value":"5VLTHDK3","created_at":"2026-05-18T12:28:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:5VLTHDK3ZZHJXW6XUADZU36WLM","target":"record","payload":{"canonical_record":{"source":{"id":"1408.0022","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-07-31T20:30:20Z","cross_cats_sorted":[],"title_canon_sha256":"59d69d7a5af77659a28abfdc0e02c4dcc99ffb8df65a111281fddf705884b0e8","abstract_canon_sha256":"42256edd9d9b5fbb6c2b838861ae8fc8808d22c5c2815bcad1fc06f2dfd77879"},"schema_version":"1.0"},"canonical_sha256":"ed57338d5bce4e9bdbd7a0079a6fd65b0e2024ecec0faf5df9575fad5a45ca4b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:32:38.558230Z","signature_b64":"LlmU+f0zttDSoDZv0XZNQ/MlK/gGVowFOCDNerbVGTa0kFMK4Z/1BSMepVAnzcph6jhCkneSaF+BF97l9pGoCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ed57338d5bce4e9bdbd7a0079a6fd65b0e2024ecec0faf5df9575fad5a45ca4b","last_reissued_at":"2026-05-18T02:32:38.557792Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:32:38.557792Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1408.0022","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":"2026-05-18T02:32:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"T+d/rmhfbw+zvqr3hDLIGZcW2ZIXf26Wh2YJAGkrb7gYMPgFcGgiKYUCLG5XneSNx5qSvoMzCcpO53eDyp9TDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T08:05:32.675222Z"},"content_sha256":"e341d5485419488c7fbd0e3e8539f48e03f1ec333afcfbaeeee5d3e1021667d7","schema_version":"1.0","event_id":"sha256:e341d5485419488c7fbd0e3e8539f48e03f1ec333afcfbaeeee5d3e1021667d7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:5VLTHDK3ZZHJXW6XUADZU36WLM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Mott physics in the half-filled Hubbard model on a family of vortex-full square lattices","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"D. Ixert, F.F. Assaad, K.P. Schmidt","submitted_at":"2014-07-31T20:30:20Z","abstract_excerpt":"We study the half-filled Hubbard model on a one-parameter family of vortex-full square lattices ranging from the isotropic case to weakly coupled Hubbard dimers. The ground-state phase diagram consists of four phases: A semi-metal and a band insulator which are connected to the weak-coupling limit, and a magnetically ordered N\\'eel phase and a valence bond crystal (VBC) which are linked to the strong-coupling Mott limit. The phase diagram is obained by quantum Monte Carlo (QMC) and continuous unitary transformations (CUTs). The CUT is performed in a two-step process: Non-perturbative graph-bas"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1408.0022","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":"2026-05-18T02:32:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/DPPjTuPXLKZVYa4pWxnOJyDepC9+nLg/CsnfXbYlLpn4A8e9Pn8SLzwXFt/34n+CGIqBLx0zGaISXTxqDN1AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T08:05:32.678523Z"},"content_sha256":"fe836849c425fa337c8a02179476b41fa4011ba85e4d3d3c77050e7f851d7cc0","schema_version":"1.0","event_id":"sha256:fe836849c425fa337c8a02179476b41fa4011ba85e4d3d3c77050e7f851d7cc0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5VLTHDK3ZZHJXW6XUADZU36WLM/bundle.json","state_url":"https://pith.science/pith/5VLTHDK3ZZHJXW6XUADZU36WLM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5VLTHDK3ZZHJXW6XUADZU36WLM/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":"2026-05-26T08:05:32Z","links":{"resolver":"https://pith.science/pith/5VLTHDK3ZZHJXW6XUADZU36WLM","bundle":"https://pith.science/pith/5VLTHDK3ZZHJXW6XUADZU36WLM/bundle.json","state":"https://pith.science/pith/5VLTHDK3ZZHJXW6XUADZU36WLM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5VLTHDK3ZZHJXW6XUADZU36WLM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:5VLTHDK3ZZHJXW6XUADZU36WLM","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":"42256edd9d9b5fbb6c2b838861ae8fc8808d22c5c2815bcad1fc06f2dfd77879","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-07-31T20:30:20Z","title_canon_sha256":"59d69d7a5af77659a28abfdc0e02c4dcc99ffb8df65a111281fddf705884b0e8"},"schema_version":"1.0","source":{"id":"1408.0022","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1408.0022","created_at":"2026-05-18T02:32:38Z"},{"alias_kind":"arxiv_version","alias_value":"1408.0022v2","created_at":"2026-05-18T02:32:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1408.0022","created_at":"2026-05-18T02:32:38Z"},{"alias_kind":"pith_short_12","alias_value":"5VLTHDK3ZZHJ","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_16","alias_value":"5VLTHDK3ZZHJXW6X","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_8","alias_value":"5VLTHDK3","created_at":"2026-05-18T12:28:16Z"}],"graph_snapshots":[{"event_id":"sha256:fe836849c425fa337c8a02179476b41fa4011ba85e4d3d3c77050e7f851d7cc0","target":"graph","created_at":"2026-05-18T02:32:38Z","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 study the half-filled Hubbard model on a one-parameter family of vortex-full square lattices ranging from the isotropic case to weakly coupled Hubbard dimers. The ground-state phase diagram consists of four phases: A semi-metal and a band insulator which are connected to the weak-coupling limit, and a magnetically ordered N\\'eel phase and a valence bond crystal (VBC) which are linked to the strong-coupling Mott limit. The phase diagram is obained by quantum Monte Carlo (QMC) and continuous unitary transformations (CUTs). The CUT is performed in a two-step process: Non-perturbative graph-bas","authors_text":"D. Ixert, F.F. Assaad, K.P. Schmidt","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-07-31T20:30:20Z","title":"Mott physics in the half-filled Hubbard model on a family of vortex-full square lattices"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1408.0022","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:e341d5485419488c7fbd0e3e8539f48e03f1ec333afcfbaeeee5d3e1021667d7","target":"record","created_at":"2026-05-18T02:32:38Z","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":"42256edd9d9b5fbb6c2b838861ae8fc8808d22c5c2815bcad1fc06f2dfd77879","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-07-31T20:30:20Z","title_canon_sha256":"59d69d7a5af77659a28abfdc0e02c4dcc99ffb8df65a111281fddf705884b0e8"},"schema_version":"1.0","source":{"id":"1408.0022","kind":"arxiv","version":2}},"canonical_sha256":"ed57338d5bce4e9bdbd7a0079a6fd65b0e2024ecec0faf5df9575fad5a45ca4b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ed57338d5bce4e9bdbd7a0079a6fd65b0e2024ecec0faf5df9575fad5a45ca4b","first_computed_at":"2026-05-18T02:32:38.557792Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:32:38.557792Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LlmU+f0zttDSoDZv0XZNQ/MlK/gGVowFOCDNerbVGTa0kFMK4Z/1BSMepVAnzcph6jhCkneSaF+BF97l9pGoCw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:32:38.558230Z","signed_message":"canonical_sha256_bytes"},"source_id":"1408.0022","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e341d5485419488c7fbd0e3e8539f48e03f1ec333afcfbaeeee5d3e1021667d7","sha256:fe836849c425fa337c8a02179476b41fa4011ba85e4d3d3c77050e7f851d7cc0"],"state_sha256":"f1466de3858339576e21b0f98faa5143928e934170d7593d9c786fbcb2a7627c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Lk6mHhPCyvVU4mCPRWreGqEDnNhKYYM3A+p5R1eFS48X/3oCox2hH3BHNw1FHajzACj7xCDz43Ue8DdfG5ljBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T08:05:32.698400Z","bundle_sha256":"166445a2beb95f7db8a0c26c05e8a43f3bf730099c7067e3ec82ea7d70609ecf"}}