{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:WN66SWHYJT2WNWZH3DYDUCW6VM","short_pith_number":"pith:WN66SWHY","canonical_record":{"source":{"id":"1110.1296","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2011-10-06T15:26:33Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"cbaf81a1b4f563970449a3f3a1e6f6c84056a11b668470c601a49fd31f37996c","abstract_canon_sha256":"171df5f3035287cacfd92f6ada8f6cd51b0be470968b16450027ed5a30e352b4"},"schema_version":"1.0"},"canonical_sha256":"b37de958f84cf566db27d8f03a0adeab13dda8142b8c422636d59d246efd6817","source":{"kind":"arxiv","id":"1110.1296","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1110.1296","created_at":"2026-05-18T04:03:55Z"},{"alias_kind":"arxiv_version","alias_value":"1110.1296v2","created_at":"2026-05-18T04:03:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1110.1296","created_at":"2026-05-18T04:03:55Z"},{"alias_kind":"pith_short_12","alias_value":"WN66SWHYJT2W","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_16","alias_value":"WN66SWHYJT2WNWZH","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_8","alias_value":"WN66SWHY","created_at":"2026-05-18T12:26:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:WN66SWHYJT2WNWZH3DYDUCW6VM","target":"record","payload":{"canonical_record":{"source":{"id":"1110.1296","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2011-10-06T15:26:33Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"cbaf81a1b4f563970449a3f3a1e6f6c84056a11b668470c601a49fd31f37996c","abstract_canon_sha256":"171df5f3035287cacfd92f6ada8f6cd51b0be470968b16450027ed5a30e352b4"},"schema_version":"1.0"},"canonical_sha256":"b37de958f84cf566db27d8f03a0adeab13dda8142b8c422636d59d246efd6817","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:03:55.734224Z","signature_b64":"Jbt4HhLzigXDUYxoeJCZiIiJnYrqZjg5T9LeXJ+qKYgm3nxgL+Rv/CCJHxiRcx9eL6bsx51y+DAQ/66Hgm0PAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b37de958f84cf566db27d8f03a0adeab13dda8142b8c422636d59d246efd6817","last_reissued_at":"2026-05-18T04:03:55.733733Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:03:55.733733Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1110.1296","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":"2026-05-18T04:03:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"coOs6+bou5ezdHZLY/onC1fblazAmPh6e1Dl7OvDWup4NKXYb3wLaYcOIdxFQh2kx5abX6rjyAYL6PYEKrQ1BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T17:47:21.097937Z"},"content_sha256":"8438b3da43e50f833392aa9bf168350f0d6a14e0d460e423787586034901109d","schema_version":"1.0","event_id":"sha256:8438b3da43e50f833392aa9bf168350f0d6a14e0d460e423787586034901109d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:WN66SWHYJT2WNWZH3DYDUCW6VM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Topological Hubbard model and its high-temperature quantum Hall effect","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.str-el","authors_text":"Christopher Mudry, Claudio Chamon, Luiz Santos, Shinsei Ryu, Titus Neupert","submitted_at":"2011-10-06T15:26:33Z","abstract_excerpt":"The quintessential two-dimensional lattice model that describes the competition between the kinetic energy of electrons and their short-range repulsive interactions is the repulsive Hubbard model. We study a time-reversal symmetric variant of the repulsive Hubbard model defined on a planar lattice: Whereas the interaction is unchanged, any fully occupied band supports a quantized spin Hall effect. We show that at 1/2 filling of this band, the ground state develops spontaneously and simultaneously Ising ferromagnetic long-range order and a quantized charge Hall effect when the interaction is su"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1110.1296","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":"2026-05-18T04:03:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+wzHxYcUNg0cpozvcTb+sdIrtXAtLBwzPjY7WDQtLS2RkJhjQd3Zdx3mwrOnoxLYf5Cq5So01ZOEZI4b882pCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T17:47:21.098735Z"},"content_sha256":"478e10b497000bb38374da0647767e8ee2f3dbb78cf32962a14ab7bb0a68f22c","schema_version":"1.0","event_id":"sha256:478e10b497000bb38374da0647767e8ee2f3dbb78cf32962a14ab7bb0a68f22c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WN66SWHYJT2WNWZH3DYDUCW6VM/bundle.json","state_url":"https://pith.science/pith/WN66SWHYJT2WNWZH3DYDUCW6VM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WN66SWHYJT2WNWZH3DYDUCW6VM/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":"2026-05-25T17:47:21Z","links":{"resolver":"https://pith.science/pith/WN66SWHYJT2WNWZH3DYDUCW6VM","bundle":"https://pith.science/pith/WN66SWHYJT2WNWZH3DYDUCW6VM/bundle.json","state":"https://pith.science/pith/WN66SWHYJT2WNWZH3DYDUCW6VM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WN66SWHYJT2WNWZH3DYDUCW6VM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:WN66SWHYJT2WNWZH3DYDUCW6VM","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":"171df5f3035287cacfd92f6ada8f6cd51b0be470968b16450027ed5a30e352b4","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2011-10-06T15:26:33Z","title_canon_sha256":"cbaf81a1b4f563970449a3f3a1e6f6c84056a11b668470c601a49fd31f37996c"},"schema_version":"1.0","source":{"id":"1110.1296","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1110.1296","created_at":"2026-05-18T04:03:55Z"},{"alias_kind":"arxiv_version","alias_value":"1110.1296v2","created_at":"2026-05-18T04:03:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1110.1296","created_at":"2026-05-18T04:03:55Z"},{"alias_kind":"pith_short_12","alias_value":"WN66SWHYJT2W","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_16","alias_value":"WN66SWHYJT2WNWZH","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_8","alias_value":"WN66SWHY","created_at":"2026-05-18T12:26:44Z"}],"graph_snapshots":[{"event_id":"sha256:478e10b497000bb38374da0647767e8ee2f3dbb78cf32962a14ab7bb0a68f22c","target":"graph","created_at":"2026-05-18T04:03:55Z","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":"The quintessential two-dimensional lattice model that describes the competition between the kinetic energy of electrons and their short-range repulsive interactions is the repulsive Hubbard model. We study a time-reversal symmetric variant of the repulsive Hubbard model defined on a planar lattice: Whereas the interaction is unchanged, any fully occupied band supports a quantized spin Hall effect. We show that at 1/2 filling of this band, the ground state develops spontaneously and simultaneously Ising ferromagnetic long-range order and a quantized charge Hall effect when the interaction is su","authors_text":"Christopher Mudry, Claudio Chamon, Luiz Santos, Shinsei Ryu, Titus Neupert","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2011-10-06T15:26:33Z","title":"Topological Hubbard model and its high-temperature quantum Hall effect"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1110.1296","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":"sha256:8438b3da43e50f833392aa9bf168350f0d6a14e0d460e423787586034901109d","target":"record","created_at":"2026-05-18T04:03:55Z","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":"171df5f3035287cacfd92f6ada8f6cd51b0be470968b16450027ed5a30e352b4","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2011-10-06T15:26:33Z","title_canon_sha256":"cbaf81a1b4f563970449a3f3a1e6f6c84056a11b668470c601a49fd31f37996c"},"schema_version":"1.0","source":{"id":"1110.1296","kind":"arxiv","version":2}},"canonical_sha256":"b37de958f84cf566db27d8f03a0adeab13dda8142b8c422636d59d246efd6817","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b37de958f84cf566db27d8f03a0adeab13dda8142b8c422636d59d246efd6817","first_computed_at":"2026-05-18T04:03:55.733733Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:03:55.733733Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Jbt4HhLzigXDUYxoeJCZiIiJnYrqZjg5T9LeXJ+qKYgm3nxgL+Rv/CCJHxiRcx9eL6bsx51y+DAQ/66Hgm0PAA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:03:55.734224Z","signed_message":"canonical_sha256_bytes"},"source_id":"1110.1296","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8438b3da43e50f833392aa9bf168350f0d6a14e0d460e423787586034901109d","sha256:478e10b497000bb38374da0647767e8ee2f3dbb78cf32962a14ab7bb0a68f22c"],"state_sha256":"2cab37b75e8bfe89d9adb8b52383dc7074f46689839995aca54906a81bb74c26"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UEDjFTPI1eiGYRn5tg08v83Ngsns4OEm1MkD470jjGX5AIT+e32QPP6cnEdPPh+LRCY3kEobHHiBJqEv5PbLDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T17:47:21.102766Z","bundle_sha256":"6768493029bcb070c0a47fc05bd1a23b5665c9deaf6736a715276d6dd11a8be2"}}