{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:3EONEM37PG7NVKGIDH7XQKCRLN","short_pith_number":"pith:3EONEM37","canonical_record":{"source":{"id":"1203.4402","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2012-03-20T11:43:37Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"1af8edd7618d81ec17359c4e40967862488839b99aa6b27c0e4fb0847b0c9fc9","abstract_canon_sha256":"eb9a3b188b2a854fc7c1e1d60bd35055b39afc88c03423d4ed8acc3bd0334993"},"schema_version":"1.0"},"canonical_sha256":"d91cd2337f79bedaa8c819ff7828515b7b6b981ee895cb805acb17967b030073","source":{"kind":"arxiv","id":"1203.4402","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.4402","created_at":"2026-05-18T03:48:35Z"},{"alias_kind":"arxiv_version","alias_value":"1203.4402v2","created_at":"2026-05-18T03:48:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.4402","created_at":"2026-05-18T03:48:35Z"},{"alias_kind":"pith_short_12","alias_value":"3EONEM37PG7N","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"3EONEM37PG7NVKGI","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"3EONEM37","created_at":"2026-05-18T12:26:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:3EONEM37PG7NVKGIDH7XQKCRLN","target":"record","payload":{"canonical_record":{"source":{"id":"1203.4402","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2012-03-20T11:43:37Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"1af8edd7618d81ec17359c4e40967862488839b99aa6b27c0e4fb0847b0c9fc9","abstract_canon_sha256":"eb9a3b188b2a854fc7c1e1d60bd35055b39afc88c03423d4ed8acc3bd0334993"},"schema_version":"1.0"},"canonical_sha256":"d91cd2337f79bedaa8c819ff7828515b7b6b981ee895cb805acb17967b030073","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:48:35.418929Z","signature_b64":"5PJ5aYy7hoFVeZXIkCyk1eFiWiPmVVqUhBoUVz0x9APJL5V2Aq3m6v5CvZ7k2nNIyMrNN3Si2raNXn+LmNBgDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d91cd2337f79bedaa8c819ff7828515b7b6b981ee895cb805acb17967b030073","last_reissued_at":"2026-05-18T03:48:35.418542Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:48:35.418542Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1203.4402","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":"2026-05-18T03:48:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"m9XnIDAJlzBOX44Z7E4ONuSs7aGKjUNM5zSxL5lw535dR29O4VXEV4QxompNjzE0J2URq47eGdOVNBWrpbSqCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T03:21:50.821455Z"},"content_sha256":"ad9fe7e0536baa8b131aeec838d24a743590f0ede313feb0b88077c2300977d3","schema_version":"1.0","event_id":"sha256:ad9fe7e0536baa8b131aeec838d24a743590f0ede313feb0b88077c2300977d3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:3EONEM37PG7NVKGIDH7XQKCRLN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Multi-orbital bosons in bipartite optical lattices","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"cond-mat.quant-gas","authors_text":"Jani-Petri Martikainen, Jonas Larson","submitted_at":"2012-03-20T11:43:37Z","abstract_excerpt":"We study interacting bosons in a two dimensional bipartite optical lattice. By focusing on the regime where the first three excited bands are nearly degenerate we derive a three orbital tight-binding model which captures the most relevant features of the bandstructure. In addition, we also derive a corresponding generalized Bose-Hubbard model and solve it numerically under different situations, both with and without a confining trap. It is especially found that the hybridization between sublattices can strongly influence the phase diagrams and in a trap enable even appearances of condensed pha"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.4402","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":"2026-05-18T03:48:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"T8bEYOe88oO6dH8m6JBtAqWS+QMgSRApV5Lf9PbqPBWOt7eSUI9YW1s4diXqPAgi84QVs4RrN5XGdDT+wc4mDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T03:21:50.821935Z"},"content_sha256":"df6ca0218ca6fcc7a676ae06d931aef3a09a84e78c78ed367a6d9c440bafcdb5","schema_version":"1.0","event_id":"sha256:df6ca0218ca6fcc7a676ae06d931aef3a09a84e78c78ed367a6d9c440bafcdb5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3EONEM37PG7NVKGIDH7XQKCRLN/bundle.json","state_url":"https://pith.science/pith/3EONEM37PG7NVKGIDH7XQKCRLN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3EONEM37PG7NVKGIDH7XQKCRLN/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":"2026-06-11T03:21:50Z","links":{"resolver":"https://pith.science/pith/3EONEM37PG7NVKGIDH7XQKCRLN","bundle":"https://pith.science/pith/3EONEM37PG7NVKGIDH7XQKCRLN/bundle.json","state":"https://pith.science/pith/3EONEM37PG7NVKGIDH7XQKCRLN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3EONEM37PG7NVKGIDH7XQKCRLN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:3EONEM37PG7NVKGIDH7XQKCRLN","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":"eb9a3b188b2a854fc7c1e1d60bd35055b39afc88c03423d4ed8acc3bd0334993","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2012-03-20T11:43:37Z","title_canon_sha256":"1af8edd7618d81ec17359c4e40967862488839b99aa6b27c0e4fb0847b0c9fc9"},"schema_version":"1.0","source":{"id":"1203.4402","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.4402","created_at":"2026-05-18T03:48:35Z"},{"alias_kind":"arxiv_version","alias_value":"1203.4402v2","created_at":"2026-05-18T03:48:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.4402","created_at":"2026-05-18T03:48:35Z"},{"alias_kind":"pith_short_12","alias_value":"3EONEM37PG7N","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"3EONEM37PG7NVKGI","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"3EONEM37","created_at":"2026-05-18T12:26:50Z"}],"graph_snapshots":[{"event_id":"sha256:df6ca0218ca6fcc7a676ae06d931aef3a09a84e78c78ed367a6d9c440bafcdb5","target":"graph","created_at":"2026-05-18T03:48:35Z","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 interacting bosons in a two dimensional bipartite optical lattice. By focusing on the regime where the first three excited bands are nearly degenerate we derive a three orbital tight-binding model which captures the most relevant features of the bandstructure. In addition, we also derive a corresponding generalized Bose-Hubbard model and solve it numerically under different situations, both with and without a confining trap. It is especially found that the hybridization between sublattices can strongly influence the phase diagrams and in a trap enable even appearances of condensed pha","authors_text":"Jani-Petri Martikainen, Jonas Larson","cross_cats":["quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2012-03-20T11:43:37Z","title":"Multi-orbital bosons in bipartite optical lattices"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.4402","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:ad9fe7e0536baa8b131aeec838d24a743590f0ede313feb0b88077c2300977d3","target":"record","created_at":"2026-05-18T03:48:35Z","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":"eb9a3b188b2a854fc7c1e1d60bd35055b39afc88c03423d4ed8acc3bd0334993","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2012-03-20T11:43:37Z","title_canon_sha256":"1af8edd7618d81ec17359c4e40967862488839b99aa6b27c0e4fb0847b0c9fc9"},"schema_version":"1.0","source":{"id":"1203.4402","kind":"arxiv","version":2}},"canonical_sha256":"d91cd2337f79bedaa8c819ff7828515b7b6b981ee895cb805acb17967b030073","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d91cd2337f79bedaa8c819ff7828515b7b6b981ee895cb805acb17967b030073","first_computed_at":"2026-05-18T03:48:35.418542Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:48:35.418542Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5PJ5aYy7hoFVeZXIkCyk1eFiWiPmVVqUhBoUVz0x9APJL5V2Aq3m6v5CvZ7k2nNIyMrNN3Si2raNXn+LmNBgDw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:48:35.418929Z","signed_message":"canonical_sha256_bytes"},"source_id":"1203.4402","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ad9fe7e0536baa8b131aeec838d24a743590f0ede313feb0b88077c2300977d3","sha256:df6ca0218ca6fcc7a676ae06d931aef3a09a84e78c78ed367a6d9c440bafcdb5"],"state_sha256":"39a5884a9300ae7284a84558013f36e4f23ff3f76e91d39306cf312a8a334fb2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sPPyFsbP6KQMhWJpX6QIck8IIEgbtUBSJ9r43n/o8BeNz1Y+4WaocZ25/xXptueq+/WuwKZpaZvh6a/X81JvCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T03:21:50.825041Z","bundle_sha256":"ca7f830f414d61a0dfae2911ff13590457a2258ec22ad2755088777974f0e37c"}}