{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:O4LLJWOACGPF6BSTCLEKJ47YF6","short_pith_number":"pith:O4LLJWOA","canonical_record":{"source":{"id":"cond-mat/0611512","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.other","submitted_at":"2006-11-20T07:21:32Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"cb06586281da4c4a6b5870ed86c5ada9c965370d4442c151a1558f897e8465d1","abstract_canon_sha256":"984c58baa89a95e05e58a06756d105a3df40b604ffe4914ef99d9ef0f0dc5f27"},"schema_version":"1.0"},"canonical_sha256":"7716b4d9c0119e5f065312c8a4f3f82fb8a710d88d8267e3a3878db98a173ad5","source":{"kind":"arxiv","id":"cond-mat/0611512","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0611512","created_at":"2026-05-18T01:39:39Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0611512v1","created_at":"2026-05-18T01:39:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0611512","created_at":"2026-05-18T01:39:39Z"},{"alias_kind":"pith_short_12","alias_value":"O4LLJWOACGPF","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_16","alias_value":"O4LLJWOACGPF6BST","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_8","alias_value":"O4LLJWOA","created_at":"2026-05-18T12:25:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:O4LLJWOACGPF6BSTCLEKJ47YF6","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/0611512","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.other","submitted_at":"2006-11-20T07:21:32Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"cb06586281da4c4a6b5870ed86c5ada9c965370d4442c151a1558f897e8465d1","abstract_canon_sha256":"984c58baa89a95e05e58a06756d105a3df40b604ffe4914ef99d9ef0f0dc5f27"},"schema_version":"1.0"},"canonical_sha256":"7716b4d9c0119e5f065312c8a4f3f82fb8a710d88d8267e3a3878db98a173ad5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:39:39.557205Z","signature_b64":"BYtr3FsoK1NxB8gorJiregWsV711BkZdqUq03ASPdRV1rbJ5uE9E1P6hYn3MEAw8o2mze3CHWuUz2ZRn/Y2EBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7716b4d9c0119e5f065312c8a4f3f82fb8a710d88d8267e3a3878db98a173ad5","last_reissued_at":"2026-05-18T01:39:39.556704Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:39:39.556704Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/0611512","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":"2026-05-18T01:39:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YW0MNG5n0CHXMVdISESy5ax7c8j4EKmaRpS8FTQnTbBqrqvYgOWE8TN0J4IjIqKSlQsN6si7aMv7CleFYMDwBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T23:18:04.286592Z"},"content_sha256":"db315f345c096815efd12c07b7b1103700e3cf6714dfc2f89574131c49fa4884","schema_version":"1.0","event_id":"sha256:db315f345c096815efd12c07b7b1103700e3cf6714dfc2f89574131c49fa4884"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:O4LLJWOACGPF6BSTCLEKJ47YF6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A class of permanent magnetic lattices for ultracold atoms","license":"","headline":"","cross_cats":["quant-ph"],"primary_cat":"cond-mat.other","authors_text":"Peter Hannaford, Saeed Ghanbari, Tien D Kieu","submitted_at":"2006-11-20T07:21:32Z","abstract_excerpt":"We report on a class of configurations of permanent magnets on an atom chip for producing 1D and 2D periodic arrays of magnetic microtraps with non-zero potential minima and variable barrier height for trapping and manipulating ultracold atoms and quantum degenerate gases. We present analytical expressions for the relevant physical quantities and compare them with our numerical results and with some previous numerical calculations. In one of the configurations of permanent magnets, we show how it is possible by changing the angle between the crossed periodic arrays of magnets to go from a 1D a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0611512","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":""},"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":"2026-05-18T01:39:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7b8WUhrBw7d6U0sDwcJVanQ2KupjlgnInJj1RCtLEQzE78nolbsuOtupgQl89aTKChG1bWkYpJJplB6Cg00VDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T23:18:04.286943Z"},"content_sha256":"bf95bb6609a14aa79a40a9db80228649b15a709e0832a3b7ae93c6376ce094e1","schema_version":"1.0","event_id":"sha256:bf95bb6609a14aa79a40a9db80228649b15a709e0832a3b7ae93c6376ce094e1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/O4LLJWOACGPF6BSTCLEKJ47YF6/bundle.json","state_url":"https://pith.science/pith/O4LLJWOACGPF6BSTCLEKJ47YF6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/O4LLJWOACGPF6BSTCLEKJ47YF6/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":"2026-06-22T23:18:04Z","links":{"resolver":"https://pith.science/pith/O4LLJWOACGPF6BSTCLEKJ47YF6","bundle":"https://pith.science/pith/O4LLJWOACGPF6BSTCLEKJ47YF6/bundle.json","state":"https://pith.science/pith/O4LLJWOACGPF6BSTCLEKJ47YF6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/O4LLJWOACGPF6BSTCLEKJ47YF6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:O4LLJWOACGPF6BSTCLEKJ47YF6","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":"984c58baa89a95e05e58a06756d105a3df40b604ffe4914ef99d9ef0f0dc5f27","cross_cats_sorted":["quant-ph"],"license":"","primary_cat":"cond-mat.other","submitted_at":"2006-11-20T07:21:32Z","title_canon_sha256":"cb06586281da4c4a6b5870ed86c5ada9c965370d4442c151a1558f897e8465d1"},"schema_version":"1.0","source":{"id":"cond-mat/0611512","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0611512","created_at":"2026-05-18T01:39:39Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0611512v1","created_at":"2026-05-18T01:39:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0611512","created_at":"2026-05-18T01:39:39Z"},{"alias_kind":"pith_short_12","alias_value":"O4LLJWOACGPF","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_16","alias_value":"O4LLJWOACGPF6BST","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_8","alias_value":"O4LLJWOA","created_at":"2026-05-18T12:25:54Z"}],"graph_snapshots":[{"event_id":"sha256:bf95bb6609a14aa79a40a9db80228649b15a709e0832a3b7ae93c6376ce094e1","target":"graph","created_at":"2026-05-18T01:39:39Z","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 report on a class of configurations of permanent magnets on an atom chip for producing 1D and 2D periodic arrays of magnetic microtraps with non-zero potential minima and variable barrier height for trapping and manipulating ultracold atoms and quantum degenerate gases. We present analytical expressions for the relevant physical quantities and compare them with our numerical results and with some previous numerical calculations. In one of the configurations of permanent magnets, we show how it is possible by changing the angle between the crossed periodic arrays of magnets to go from a 1D a","authors_text":"Peter Hannaford, Saeed Ghanbari, Tien D Kieu","cross_cats":["quant-ph"],"headline":"","license":"","primary_cat":"cond-mat.other","submitted_at":"2006-11-20T07:21:32Z","title":"A class of permanent magnetic lattices for ultracold atoms"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0611512","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:db315f345c096815efd12c07b7b1103700e3cf6714dfc2f89574131c49fa4884","target":"record","created_at":"2026-05-18T01:39:39Z","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":"984c58baa89a95e05e58a06756d105a3df40b604ffe4914ef99d9ef0f0dc5f27","cross_cats_sorted":["quant-ph"],"license":"","primary_cat":"cond-mat.other","submitted_at":"2006-11-20T07:21:32Z","title_canon_sha256":"cb06586281da4c4a6b5870ed86c5ada9c965370d4442c151a1558f897e8465d1"},"schema_version":"1.0","source":{"id":"cond-mat/0611512","kind":"arxiv","version":1}},"canonical_sha256":"7716b4d9c0119e5f065312c8a4f3f82fb8a710d88d8267e3a3878db98a173ad5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7716b4d9c0119e5f065312c8a4f3f82fb8a710d88d8267e3a3878db98a173ad5","first_computed_at":"2026-05-18T01:39:39.556704Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:39:39.556704Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BYtr3FsoK1NxB8gorJiregWsV711BkZdqUq03ASPdRV1rbJ5uE9E1P6hYn3MEAw8o2mze3CHWuUz2ZRn/Y2EBw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:39:39.557205Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0611512","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:db315f345c096815efd12c07b7b1103700e3cf6714dfc2f89574131c49fa4884","sha256:bf95bb6609a14aa79a40a9db80228649b15a709e0832a3b7ae93c6376ce094e1"],"state_sha256":"f07fa35ed8d9fbc62c61d5398906dce86c76bf6f9b0b0ac9084ad766b40e9ac5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2e7hoENxHfvM0R5FaJH7Y320Vu70MkF3uh+beZDKFolb5qglf5KopMEZref4JV20OQgNrWiHnJmxN31jZayiAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-22T23:18:04.289023Z","bundle_sha256":"4192dfd80e298dbcfe8d3457db9e5fc708e4e37eac3e3fbd37ad33226def6182"}}