{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:OZACEXLUG4QFFYBJZFIRECK2LC","short_pith_number":"pith:OZACEXLU","canonical_record":{"source":{"id":"0809.1464","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2008-09-09T00:15:31Z","cross_cats_sorted":[],"title_canon_sha256":"41cac3f7f8526f1fa907b8bf85985cc8c929dd0e806a39bfc72a91b72b2248f4","abstract_canon_sha256":"48d2bc85a9212309154c9a1f8193e0d4418a0ba72328cb947d0b50e6e27f0901"},"schema_version":"1.0"},"canonical_sha256":"7640225d74372052e029c95112095a588252e67f2eb7eb4a7c92c525baafd1a2","source":{"kind":"arxiv","id":"0809.1464","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0809.1464","created_at":"2026-07-04T17:24:59Z"},{"alias_kind":"arxiv_version","alias_value":"0809.1464v1","created_at":"2026-07-04T17:24:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0809.1464","created_at":"2026-07-04T17:24:59Z"},{"alias_kind":"pith_short_12","alias_value":"OZACEXLUG4QF","created_at":"2026-07-04T17:24:59Z"},{"alias_kind":"pith_short_16","alias_value":"OZACEXLUG4QFFYBJ","created_at":"2026-07-04T17:24:59Z"},{"alias_kind":"pith_short_8","alias_value":"OZACEXLU","created_at":"2026-07-04T17:24:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:OZACEXLUG4QFFYBJZFIRECK2LC","target":"record","payload":{"canonical_record":{"source":{"id":"0809.1464","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2008-09-09T00:15:31Z","cross_cats_sorted":[],"title_canon_sha256":"41cac3f7f8526f1fa907b8bf85985cc8c929dd0e806a39bfc72a91b72b2248f4","abstract_canon_sha256":"48d2bc85a9212309154c9a1f8193e0d4418a0ba72328cb947d0b50e6e27f0901"},"schema_version":"1.0"},"canonical_sha256":"7640225d74372052e029c95112095a588252e67f2eb7eb4a7c92c525baafd1a2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T17:24:59.967557Z","signature_b64":"EvqhRYPGlTn0lLu/xYWMxU/wRYFt8BdX+OymcXnSOqrZmfJn//mrCFoh0UGUuK1Gahuxz3UZRyqfXRbBf8mQCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7640225d74372052e029c95112095a588252e67f2eb7eb4a7c92c525baafd1a2","last_reissued_at":"2026-07-04T17:24:59.967086Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T17:24:59.967086Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0809.1464","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T17:24:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"L2IF5m4hm9k5pi7U08SyT/4LmBra6ywZYYvPZh5dXt1DYN2pjjHJJElyg+DsLEdBNhiPlG5OlsPL9WlH5NHyCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T01:10:24.294964Z"},"content_sha256":"61004e84991e0696b37326a4a2fec647ca430891af1828279dc0969f0bd137da","schema_version":"1.0","event_id":"sha256:61004e84991e0696b37326a4a2fec647ca430891af1828279dc0969f0bd137da"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:OZACEXLUG4QFFYBJZFIRECK2LC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Metallic and Insulating Phases of Repulsively Interacting Fermions in a 3D Optical Lattice","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"A. Rosch, D. Rasch, I. Bloch, L. Hackermuller, R. W. Helmes, S. Will, T. A. Costi, Th. Best, U. Schneider","submitted_at":"2008-09-09T00:15:31Z","abstract_excerpt":"The fermionic Hubbard model plays a fundamental role in the description of strongly correlated materials. Here we report on the realization of this Hamiltonian using a repulsively interacting spin mixture of ultracold $^{40}$K atoms in a 3D optical lattice. We have implemented a new method to directly measure the compressibility of the quantum gas in the trap using in-situ imaging and independent control of external confinement and lattice depth. Together with a comparison to ab-initio Dynamical Mean Field Theory calculations, we show how the system evolves for increasing confinement from a co"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0809.1464","kind":"arxiv","version":1},"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/0809.1464/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":"2026-07-04T17:24:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"G1GqVo/9OUHMPeOU+I2A1MKr/1c+UWgSqhGFoKDlC8kizhZg/9Lz5t31AO2ObElnSUz1FUHo10AdwoCvj1agBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T01:10:24.295497Z"},"content_sha256":"04df07569d84e2634a0514220b1cf35e526dbb33088c8605dec717e329e19133","schema_version":"1.0","event_id":"sha256:04df07569d84e2634a0514220b1cf35e526dbb33088c8605dec717e329e19133"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OZACEXLUG4QFFYBJZFIRECK2LC/bundle.json","state_url":"https://pith.science/pith/OZACEXLUG4QFFYBJZFIRECK2LC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OZACEXLUG4QFFYBJZFIRECK2LC/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":"2026-08-13T01:10:24Z","links":{"resolver":"https://pith.science/pith/OZACEXLUG4QFFYBJZFIRECK2LC","bundle":"https://pith.science/pith/OZACEXLUG4QFFYBJZFIRECK2LC/bundle.json","state":"https://pith.science/pith/OZACEXLUG4QFFYBJZFIRECK2LC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OZACEXLUG4QFFYBJZFIRECK2LC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:OZACEXLUG4QFFYBJZFIRECK2LC","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":"48d2bc85a9212309154c9a1f8193e0d4418a0ba72328cb947d0b50e6e27f0901","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2008-09-09T00:15:31Z","title_canon_sha256":"41cac3f7f8526f1fa907b8bf85985cc8c929dd0e806a39bfc72a91b72b2248f4"},"schema_version":"1.0","source":{"id":"0809.1464","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0809.1464","created_at":"2026-07-04T17:24:59Z"},{"alias_kind":"arxiv_version","alias_value":"0809.1464v1","created_at":"2026-07-04T17:24:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0809.1464","created_at":"2026-07-04T17:24:59Z"},{"alias_kind":"pith_short_12","alias_value":"OZACEXLUG4QF","created_at":"2026-07-04T17:24:59Z"},{"alias_kind":"pith_short_16","alias_value":"OZACEXLUG4QFFYBJ","created_at":"2026-07-04T17:24:59Z"},{"alias_kind":"pith_short_8","alias_value":"OZACEXLU","created_at":"2026-07-04T17:24:59Z"}],"graph_snapshots":[{"event_id":"sha256:04df07569d84e2634a0514220b1cf35e526dbb33088c8605dec717e329e19133","target":"graph","created_at":"2026-07-04T17:24:59Z","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/0809.1464/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The fermionic Hubbard model plays a fundamental role in the description of strongly correlated materials. Here we report on the realization of this Hamiltonian using a repulsively interacting spin mixture of ultracold $^{40}$K atoms in a 3D optical lattice. We have implemented a new method to directly measure the compressibility of the quantum gas in the trap using in-situ imaging and independent control of external confinement and lattice depth. Together with a comparison to ab-initio Dynamical Mean Field Theory calculations, we show how the system evolves for increasing confinement from a co","authors_text":"A. Rosch, D. Rasch, I. Bloch, L. Hackermuller, R. W. Helmes, S. Will, T. A. Costi, Th. Best, U. Schneider","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2008-09-09T00:15:31Z","title":"Metallic and Insulating Phases of Repulsively Interacting Fermions in a 3D Optical Lattice"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0809.1464","kind":"arxiv","version":1},"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":"sha256:61004e84991e0696b37326a4a2fec647ca430891af1828279dc0969f0bd137da","target":"record","created_at":"2026-07-04T17:24:59Z","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":"48d2bc85a9212309154c9a1f8193e0d4418a0ba72328cb947d0b50e6e27f0901","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2008-09-09T00:15:31Z","title_canon_sha256":"41cac3f7f8526f1fa907b8bf85985cc8c929dd0e806a39bfc72a91b72b2248f4"},"schema_version":"1.0","source":{"id":"0809.1464","kind":"arxiv","version":1}},"canonical_sha256":"7640225d74372052e029c95112095a588252e67f2eb7eb4a7c92c525baafd1a2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7640225d74372052e029c95112095a588252e67f2eb7eb4a7c92c525baafd1a2","first_computed_at":"2026-07-04T17:24:59.967086Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:24:59.967086Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"EvqhRYPGlTn0lLu/xYWMxU/wRYFt8BdX+OymcXnSOqrZmfJn//mrCFoh0UGUuK1Gahuxz3UZRyqfXRbBf8mQCw==","signature_status":"signed_v1","signed_at":"2026-07-04T17:24:59.967557Z","signed_message":"canonical_sha256_bytes"},"source_id":"0809.1464","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:61004e84991e0696b37326a4a2fec647ca430891af1828279dc0969f0bd137da","sha256:04df07569d84e2634a0514220b1cf35e526dbb33088c8605dec717e329e19133"],"state_sha256":"e72d56c6f6df484ed98958c7db2ba0a8307260d02454225817e31a4fd5ef3c3d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8Wwksi28Dc9dSAaCgGJZox4RRcN9b0fw0XJ6JsWEo4iS8UsjjdPa89H/a5l3NZQHEGnlQXtatQ/5HtPfdDrHAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T01:10:24.301411Z","bundle_sha256":"f5e9c4be1cfec7ed45e920d190857b6591d280f31f0f0569944f2b0c51685ced"}}