{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:DAA2UT7A6Y5X2CSHW5QXWH6JUH","short_pith_number":"pith:DAA2UT7A","canonical_record":{"source":{"id":"1204.0016","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2012-03-30T20:29:08Z","cross_cats_sorted":[],"title_canon_sha256":"7d5b974d982bcae941caa5e368e2755bf6d46687ff66251bb13a1f6c97b988cc","abstract_canon_sha256":"6ef25ddf40e12fe2c764ad052fe886022e675aa76ed2c75a31db3198bc90fa50"},"schema_version":"1.0"},"canonical_sha256":"1801aa4fe0f63b7d0a47b7617b1fc9a1cbb735ee06b910ea62d4343f4ec40672","source":{"kind":"arxiv","id":"1204.0016","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.0016","created_at":"2026-05-18T03:53:06Z"},{"alias_kind":"arxiv_version","alias_value":"1204.0016v2","created_at":"2026-05-18T03:53:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.0016","created_at":"2026-05-18T03:53:06Z"},{"alias_kind":"pith_short_12","alias_value":"DAA2UT7A6Y5X","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_16","alias_value":"DAA2UT7A6Y5X2CSH","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_8","alias_value":"DAA2UT7A","created_at":"2026-05-18T12:27:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:DAA2UT7A6Y5X2CSHW5QXWH6JUH","target":"record","payload":{"canonical_record":{"source":{"id":"1204.0016","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2012-03-30T20:29:08Z","cross_cats_sorted":[],"title_canon_sha256":"7d5b974d982bcae941caa5e368e2755bf6d46687ff66251bb13a1f6c97b988cc","abstract_canon_sha256":"6ef25ddf40e12fe2c764ad052fe886022e675aa76ed2c75a31db3198bc90fa50"},"schema_version":"1.0"},"canonical_sha256":"1801aa4fe0f63b7d0a47b7617b1fc9a1cbb735ee06b910ea62d4343f4ec40672","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:53:06.608771Z","signature_b64":"7USsMtiO4SGLYHllgszKJvBL/c7n1D/eVtiLdDlpDO82jhAXnHnM+vXu6IRnz9LeyNCEy6pmgg+D0qTkY0RDCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1801aa4fe0f63b7d0a47b7617b1fc9a1cbb735ee06b910ea62d4343f4ec40672","last_reissued_at":"2026-05-18T03:53:06.608032Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:53:06.608032Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1204.0016","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":"2026-05-18T03:53:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zVZO6F31az8gihXfBeknQIOEZdpzRtlHCG2+agZ+i/FPoV6dsnRiH3zyqySzrvdr+Ir6C8QsQV2Gi243/ZL2Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T17:26:06.630803Z"},"content_sha256":"49f4d37f80317d1a926c0015b74edddac8d5d0c0d45b92e16b80c89018b86882","schema_version":"1.0","event_id":"sha256:49f4d37f80317d1a926c0015b74edddac8d5d0c0d45b92e16b80c89018b86882"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:DAA2UT7A6Y5X2CSHW5QXWH6JUH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Effects of Smooth Boundaries on Topological Edge Modes in Optical Lattices","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.quant-gas","authors_text":"Daniel Cocks, Michael Buchhold, Walter Hofstetter","submitted_at":"2012-03-30T20:29:08Z","abstract_excerpt":"Since the experimental realization of synthetic gauge fields for neutral atoms, the simulation of topologically non-trivial phases of matter with ultracold atoms has become a major focus of cold atom experiments. However, several obvious differences exist between cold atom and solid state systems, for instance the finite size of the atomic cloud and the smooth confining potential. In this article we show that sharp boundaries are not required to realize quantum Hall or quantum spin Hall physics in optical lattices and, on the contrary, that edge states which belong to a smooth confinement exhi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.0016","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":"2026-05-18T03:53:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6FsQo/DJLrXDxy52T5Tvxl3xNgdi4+iLs0Z0cWMajDGrk+u6Py3iiubx6V7MV46tueJmkLg+tkJDnOPWZkU7DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T17:26:06.631385Z"},"content_sha256":"a9cfcde091c6184eb6625c09d6032346238ed9867129645a006465c0f61cb983","schema_version":"1.0","event_id":"sha256:a9cfcde091c6184eb6625c09d6032346238ed9867129645a006465c0f61cb983"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DAA2UT7A6Y5X2CSHW5QXWH6JUH/bundle.json","state_url":"https://pith.science/pith/DAA2UT7A6Y5X2CSHW5QXWH6JUH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DAA2UT7A6Y5X2CSHW5QXWH6JUH/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":"2026-06-02T17:26:06Z","links":{"resolver":"https://pith.science/pith/DAA2UT7A6Y5X2CSHW5QXWH6JUH","bundle":"https://pith.science/pith/DAA2UT7A6Y5X2CSHW5QXWH6JUH/bundle.json","state":"https://pith.science/pith/DAA2UT7A6Y5X2CSHW5QXWH6JUH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DAA2UT7A6Y5X2CSHW5QXWH6JUH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:DAA2UT7A6Y5X2CSHW5QXWH6JUH","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":"6ef25ddf40e12fe2c764ad052fe886022e675aa76ed2c75a31db3198bc90fa50","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2012-03-30T20:29:08Z","title_canon_sha256":"7d5b974d982bcae941caa5e368e2755bf6d46687ff66251bb13a1f6c97b988cc"},"schema_version":"1.0","source":{"id":"1204.0016","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.0016","created_at":"2026-05-18T03:53:06Z"},{"alias_kind":"arxiv_version","alias_value":"1204.0016v2","created_at":"2026-05-18T03:53:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.0016","created_at":"2026-05-18T03:53:06Z"},{"alias_kind":"pith_short_12","alias_value":"DAA2UT7A6Y5X","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_16","alias_value":"DAA2UT7A6Y5X2CSH","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_8","alias_value":"DAA2UT7A","created_at":"2026-05-18T12:27:01Z"}],"graph_snapshots":[{"event_id":"sha256:a9cfcde091c6184eb6625c09d6032346238ed9867129645a006465c0f61cb983","target":"graph","created_at":"2026-05-18T03:53:06Z","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":"Since the experimental realization of synthetic gauge fields for neutral atoms, the simulation of topologically non-trivial phases of matter with ultracold atoms has become a major focus of cold atom experiments. However, several obvious differences exist between cold atom and solid state systems, for instance the finite size of the atomic cloud and the smooth confining potential. In this article we show that sharp boundaries are not required to realize quantum Hall or quantum spin Hall physics in optical lattices and, on the contrary, that edge states which belong to a smooth confinement exhi","authors_text":"Daniel Cocks, Michael Buchhold, Walter Hofstetter","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2012-03-30T20:29:08Z","title":"Effects of Smooth Boundaries on Topological Edge Modes in Optical Lattices"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.0016","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":"sha256:49f4d37f80317d1a926c0015b74edddac8d5d0c0d45b92e16b80c89018b86882","target":"record","created_at":"2026-05-18T03:53:06Z","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":"6ef25ddf40e12fe2c764ad052fe886022e675aa76ed2c75a31db3198bc90fa50","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2012-03-30T20:29:08Z","title_canon_sha256":"7d5b974d982bcae941caa5e368e2755bf6d46687ff66251bb13a1f6c97b988cc"},"schema_version":"1.0","source":{"id":"1204.0016","kind":"arxiv","version":2}},"canonical_sha256":"1801aa4fe0f63b7d0a47b7617b1fc9a1cbb735ee06b910ea62d4343f4ec40672","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1801aa4fe0f63b7d0a47b7617b1fc9a1cbb735ee06b910ea62d4343f4ec40672","first_computed_at":"2026-05-18T03:53:06.608032Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:53:06.608032Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7USsMtiO4SGLYHllgszKJvBL/c7n1D/eVtiLdDlpDO82jhAXnHnM+vXu6IRnz9LeyNCEy6pmgg+D0qTkY0RDCw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:53:06.608771Z","signed_message":"canonical_sha256_bytes"},"source_id":"1204.0016","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:49f4d37f80317d1a926c0015b74edddac8d5d0c0d45b92e16b80c89018b86882","sha256:a9cfcde091c6184eb6625c09d6032346238ed9867129645a006465c0f61cb983"],"state_sha256":"362f83625ddc90788640f24d12b9d08048d84f71513b5574bf87aa3fd18f27ee"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MGFOI7x+D3V7x06W9qaJsOPrWYh/RyAPbgejNDDbE4Yy6Wl1400s69sa6MhyWhSMg+Jy20rE0FHT66VyFNk0Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T17:26:06.634298Z","bundle_sha256":"d6b2838a25c84805f9b15939a7d53745c2b9be593df23c4cadfdd37212827a7f"}}