{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:ZODV2M7YKPPU57FIJKJYTBV2QV","short_pith_number":"pith:ZODV2M7Y","canonical_record":{"source":{"id":"2006.10769","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2020-06-18T18:00:04Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"b1cf52050ba7ee3e319c1339db00209ae783872d9ac26b50202369ea33269f34","abstract_canon_sha256":"03fafc2aebfa2720a34441211c6bc4eecc1695eb5db8cacdf2293d23ef8af1d9"},"schema_version":"1.0"},"canonical_sha256":"cb875d33f853df4efca84a938986ba85669b9a6533358856fef87e0cb58ec45d","source":{"kind":"arxiv","id":"2006.10769","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2006.10769","created_at":"2026-07-05T02:27:21Z"},{"alias_kind":"arxiv_version","alias_value":"2006.10769v3","created_at":"2026-07-05T02:27:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2006.10769","created_at":"2026-07-05T02:27:21Z"},{"alias_kind":"pith_short_12","alias_value":"ZODV2M7YKPPU","created_at":"2026-07-05T02:27:21Z"},{"alias_kind":"pith_short_16","alias_value":"ZODV2M7YKPPU57FI","created_at":"2026-07-05T02:27:21Z"},{"alias_kind":"pith_short_8","alias_value":"ZODV2M7Y","created_at":"2026-07-05T02:27:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:ZODV2M7YKPPU57FIJKJYTBV2QV","target":"record","payload":{"canonical_record":{"source":{"id":"2006.10769","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2020-06-18T18:00:04Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"b1cf52050ba7ee3e319c1339db00209ae783872d9ac26b50202369ea33269f34","abstract_canon_sha256":"03fafc2aebfa2720a34441211c6bc4eecc1695eb5db8cacdf2293d23ef8af1d9"},"schema_version":"1.0"},"canonical_sha256":"cb875d33f853df4efca84a938986ba85669b9a6533358856fef87e0cb58ec45d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:27:21.637798Z","signature_b64":"lKxMPgyQM3jdxI3xips74b8ep9l5cFNJ3EFbZA5Wd/UOgaGuVz9doo6/XVoMb39X2FSnZHhVF7NA1YNWAl/ZBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cb875d33f853df4efca84a938986ba85669b9a6533358856fef87e0cb58ec45d","last_reissued_at":"2026-07-05T02:27:21.637301Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:27:21.637301Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2006.10769","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T02:27:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4LdpAOYy5nF6g4cfj+kyFyp7g+rZRi0DUmwUkXvWVbnstpPxqiiBnp8SqmhmuofYh6lhT9VLhe6S/KqKv9jwDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T06:49:06.675618Z"},"content_sha256":"56a4258b1ca9cdb223608a7614caedf1e44fad7626c459143cf3ffddddf5b4af","schema_version":"1.0","event_id":"sha256:56a4258b1ca9cdb223608a7614caedf1e44fad7626c459143cf3ffddddf5b4af"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:ZODV2M7YKPPU57FIJKJYTBV2QV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Tracking the Footprints of Spin Fluctuations: A MultiMethod, MultiMessenger Study of the Two-Dimensional Hubbard Model","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.comp-ph"],"primary_cat":"cond-mat.str-el","authors_text":"Aaram J. Kim, Alfred Kirsch, A.-M. S. Tremblay, Anna Kauch, Antoine Georges, Behnam Arzhang, Christian J. Eckhardt, Cornelia Hille, Daniel Rohe, Evgeny A. Stepanov, Evgeny Kozik, Fedor \\v{S}imkovic IV, Fran\\c{c}ois-Marie Le R\\'egent, James P. F. LeBlanc, Marcel Klett, Michel Ferrero, Nils Wentzell, Olivier Parcollet, Philipp Hansmann, Sabine Andergassen, Shiwei Zhang, Thomas Sch\\\"afer, Viktor Harkov, Yan Wang, Yuan-Yao He, Yuri M. Vilk","submitted_at":"2020-06-18T18:00:04Z","abstract_excerpt":"The Hubbard model represents the fundamental model for interacting quantum systems and electronic correlations. Using the two-dimensional half-filled Hubbard model at weak coupling as a testing ground, we perform a comparative study of a comprehensive set of state of the art quantum many-body methods. Upon cooling into its insulating antiferromagnetic ground-state, the model hosts a rich sequence of distinct physical regimes with crossovers between a high-temperature incoherent regime, an intermediate temperature metallic regime and a low-temperature insulating regime with a pseudogap created "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2006.10769","kind":"arxiv","version":3},"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/2006.10769/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":"2026-07-05T02:27:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OxlyrXu+n+H6+lgT7VWVndkxyRQKgtXzgCB43yfzmtmZcb2uTfUt1KcSD+RcyTKMx9/YPjahJiyAcwPP/QKWCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T06:49:06.676134Z"},"content_sha256":"8e0cb9edd5a4c48d16cbd22156845c0547db3d381cb39eb784483a8da5558f6f","schema_version":"1.0","event_id":"sha256:8e0cb9edd5a4c48d16cbd22156845c0547db3d381cb39eb784483a8da5558f6f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZODV2M7YKPPU57FIJKJYTBV2QV/bundle.json","state_url":"https://pith.science/pith/ZODV2M7YKPPU57FIJKJYTBV2QV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZODV2M7YKPPU57FIJKJYTBV2QV/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":"2026-08-21T06:49:06Z","links":{"resolver":"https://pith.science/pith/ZODV2M7YKPPU57FIJKJYTBV2QV","bundle":"https://pith.science/pith/ZODV2M7YKPPU57FIJKJYTBV2QV/bundle.json","state":"https://pith.science/pith/ZODV2M7YKPPU57FIJKJYTBV2QV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZODV2M7YKPPU57FIJKJYTBV2QV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:ZODV2M7YKPPU57FIJKJYTBV2QV","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":"03fafc2aebfa2720a34441211c6bc4eecc1695eb5db8cacdf2293d23ef8af1d9","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2020-06-18T18:00:04Z","title_canon_sha256":"b1cf52050ba7ee3e319c1339db00209ae783872d9ac26b50202369ea33269f34"},"schema_version":"1.0","source":{"id":"2006.10769","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2006.10769","created_at":"2026-07-05T02:27:21Z"},{"alias_kind":"arxiv_version","alias_value":"2006.10769v3","created_at":"2026-07-05T02:27:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2006.10769","created_at":"2026-07-05T02:27:21Z"},{"alias_kind":"pith_short_12","alias_value":"ZODV2M7YKPPU","created_at":"2026-07-05T02:27:21Z"},{"alias_kind":"pith_short_16","alias_value":"ZODV2M7YKPPU57FI","created_at":"2026-07-05T02:27:21Z"},{"alias_kind":"pith_short_8","alias_value":"ZODV2M7Y","created_at":"2026-07-05T02:27:21Z"}],"graph_snapshots":[{"event_id":"sha256:8e0cb9edd5a4c48d16cbd22156845c0547db3d381cb39eb784483a8da5558f6f","target":"graph","created_at":"2026-07-05T02:27:21Z","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/2006.10769/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The Hubbard model represents the fundamental model for interacting quantum systems and electronic correlations. Using the two-dimensional half-filled Hubbard model at weak coupling as a testing ground, we perform a comparative study of a comprehensive set of state of the art quantum many-body methods. Upon cooling into its insulating antiferromagnetic ground-state, the model hosts a rich sequence of distinct physical regimes with crossovers between a high-temperature incoherent regime, an intermediate temperature metallic regime and a low-temperature insulating regime with a pseudogap created ","authors_text":"Aaram J. Kim, Alfred Kirsch, A.-M. S. Tremblay, Anna Kauch, Antoine Georges, Behnam Arzhang, Christian J. Eckhardt, Cornelia Hille, Daniel Rohe, Evgeny A. Stepanov, Evgeny Kozik, Fedor \\v{S}imkovic IV, Fran\\c{c}ois-Marie Le R\\'egent, James P. F. LeBlanc, Marcel Klett, Michel Ferrero, Nils Wentzell, Olivier Parcollet, Philipp Hansmann, Sabine Andergassen, Shiwei Zhang, Thomas Sch\\\"afer, Viktor Harkov, Yan Wang, Yuan-Yao He, Yuri M. Vilk","cross_cats":["physics.comp-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2020-06-18T18:00:04Z","title":"Tracking the Footprints of Spin Fluctuations: A MultiMethod, MultiMessenger Study of the Two-Dimensional Hubbard Model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2006.10769","kind":"arxiv","version":3},"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":"sha256:56a4258b1ca9cdb223608a7614caedf1e44fad7626c459143cf3ffddddf5b4af","target":"record","created_at":"2026-07-05T02:27:21Z","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":"03fafc2aebfa2720a34441211c6bc4eecc1695eb5db8cacdf2293d23ef8af1d9","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2020-06-18T18:00:04Z","title_canon_sha256":"b1cf52050ba7ee3e319c1339db00209ae783872d9ac26b50202369ea33269f34"},"schema_version":"1.0","source":{"id":"2006.10769","kind":"arxiv","version":3}},"canonical_sha256":"cb875d33f853df4efca84a938986ba85669b9a6533358856fef87e0cb58ec45d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cb875d33f853df4efca84a938986ba85669b9a6533358856fef87e0cb58ec45d","first_computed_at":"2026-07-05T02:27:21.637301Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:27:21.637301Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lKxMPgyQM3jdxI3xips74b8ep9l5cFNJ3EFbZA5Wd/UOgaGuVz9doo6/XVoMb39X2FSnZHhVF7NA1YNWAl/ZBA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:27:21.637798Z","signed_message":"canonical_sha256_bytes"},"source_id":"2006.10769","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:56a4258b1ca9cdb223608a7614caedf1e44fad7626c459143cf3ffddddf5b4af","sha256:8e0cb9edd5a4c48d16cbd22156845c0547db3d381cb39eb784483a8da5558f6f"],"state_sha256":"88f691d402d918d3ae0e63343194cf6630971fab301196d4f1bbd50f36282dc1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"U/g9dEpvUgiZmh1lpYNAl5N1VZFAUvfGFt184X3xDUIUny94PJN1Ygm7WnxGLttmpeM/EHpHag/e055F2ha0CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-21T06:49:06.679982Z","bundle_sha256":"09bfc0206c00ad4b3436b7698fe3ffea100b4c828d19217c6e0d020777db1915"}}