{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:UCHOWICVUOXHNGLCDRWDBMRWM6","short_pith_number":"pith:UCHOWICV","canonical_record":{"source":{"id":"0706.2082","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.other","submitted_at":"2007-06-14T10:25:49Z","cross_cats_sorted":[],"title_canon_sha256":"282b9dcbc2b0068405ffc175bd3919274a356bb4ddf975b811e1c7408b0b8b6f","abstract_canon_sha256":"774307a55b409af3737a1f584d2cb977b75aa40f6100d9975852cffe444509dd"},"schema_version":"1.0"},"canonical_sha256":"a08eeb2055a3ae7699621c6c30b236678b6462013a508bfd3dbf0f016e8293fd","source":{"kind":"arxiv","id":"0706.2082","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0706.2082","created_at":"2026-05-18T01:09:24Z"},{"alias_kind":"arxiv_version","alias_value":"0706.2082v1","created_at":"2026-05-18T01:09:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0706.2082","created_at":"2026-05-18T01:09:24Z"},{"alias_kind":"pith_short_12","alias_value":"UCHOWICVUOXH","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"UCHOWICVUOXHNGLC","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"UCHOWICV","created_at":"2026-05-18T12:25:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:UCHOWICVUOXHNGLCDRWDBMRWM6","target":"record","payload":{"canonical_record":{"source":{"id":"0706.2082","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.other","submitted_at":"2007-06-14T10:25:49Z","cross_cats_sorted":[],"title_canon_sha256":"282b9dcbc2b0068405ffc175bd3919274a356bb4ddf975b811e1c7408b0b8b6f","abstract_canon_sha256":"774307a55b409af3737a1f584d2cb977b75aa40f6100d9975852cffe444509dd"},"schema_version":"1.0"},"canonical_sha256":"a08eeb2055a3ae7699621c6c30b236678b6462013a508bfd3dbf0f016e8293fd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:09:24.616481Z","signature_b64":"5a8Ed2lEn2Wse93PitwPCob3xdUPYztVQL8tJdq1VG47Tk/dTzD5rjqCi5zh/nc2uyAQ+TkIhXW3dxKnSInaDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a08eeb2055a3ae7699621c6c30b236678b6462013a508bfd3dbf0f016e8293fd","last_reissued_at":"2026-05-18T01:09:24.616091Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:09:24.616091Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0706.2082","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":"2026-05-18T01:09:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bC6H0kD/SBO0/9d2BO33INWGbg524VGbqPGFWIGio8/m6bcrzzdyAnDYVw8iiMGb7f02W1zIt5QVPl/e9KKpAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T22:01:03.525028Z"},"content_sha256":"67675ca44c1ebe56a9a26415bce053cf6e2cd3ca2f40176c7752fde6d316734a","schema_version":"1.0","event_id":"sha256:67675ca44c1ebe56a9a26415bce053cf6e2cd3ca2f40176c7752fde6d316734a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:UCHOWICVUOXHNGLCDRWDBMRWM6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Elementary Excitations of a Bose-Einstein Condensate in an Effective Magnetic Field","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.other","authors_text":"Campus Universitat Illes Balears, CSIC-UIB, Dami\\'a Gomila (3), D. R. Murray (1), Edinburgh, Glasgow, Heriot-Watt University, Palma de Mallorca, P. \\\"Ohberg (2), Spain), Stephen M. Barnett (1) ((1) SUPA, UK (2) SUPA, UK (3) IFISC, University of Strathclyde","submitted_at":"2007-06-14T10:25:49Z","abstract_excerpt":"We calculate the low energy elementary excitations of a Bose-Einstein Condensate in an effective magnetic field. The field is created by the interplay between light beams carrying orbital angular momentum and the trapped atoms. We examine the role of the homogeneous magnetic field, familiar from studies of rotating condensates, and also investigate spectra for vector potentials with a more general radial dependence. We discuss the instabilities which arise and how these may be manifested."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0706.2082","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":"2026-05-18T01:09:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ogQsY25eIXgg4dQKITY+b+MBvwmvHb8lHK9ixdB3sQCdu6Jr5ffHfiEiBkAprBhULKeOIQUv9VGQPqT/C0e0Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T22:01:03.525734Z"},"content_sha256":"55f076e346711f3d386568e07b3f0957dbdd931a3dc9216727d1edbc8218ea92","schema_version":"1.0","event_id":"sha256:55f076e346711f3d386568e07b3f0957dbdd931a3dc9216727d1edbc8218ea92"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UCHOWICVUOXHNGLCDRWDBMRWM6/bundle.json","state_url":"https://pith.science/pith/UCHOWICVUOXHNGLCDRWDBMRWM6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UCHOWICVUOXHNGLCDRWDBMRWM6/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":"2026-05-25T22:01:03Z","links":{"resolver":"https://pith.science/pith/UCHOWICVUOXHNGLCDRWDBMRWM6","bundle":"https://pith.science/pith/UCHOWICVUOXHNGLCDRWDBMRWM6/bundle.json","state":"https://pith.science/pith/UCHOWICVUOXHNGLCDRWDBMRWM6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UCHOWICVUOXHNGLCDRWDBMRWM6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:UCHOWICVUOXHNGLCDRWDBMRWM6","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":"774307a55b409af3737a1f584d2cb977b75aa40f6100d9975852cffe444509dd","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.other","submitted_at":"2007-06-14T10:25:49Z","title_canon_sha256":"282b9dcbc2b0068405ffc175bd3919274a356bb4ddf975b811e1c7408b0b8b6f"},"schema_version":"1.0","source":{"id":"0706.2082","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0706.2082","created_at":"2026-05-18T01:09:24Z"},{"alias_kind":"arxiv_version","alias_value":"0706.2082v1","created_at":"2026-05-18T01:09:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0706.2082","created_at":"2026-05-18T01:09:24Z"},{"alias_kind":"pith_short_12","alias_value":"UCHOWICVUOXH","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"UCHOWICVUOXHNGLC","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"UCHOWICV","created_at":"2026-05-18T12:25:56Z"}],"graph_snapshots":[{"event_id":"sha256:55f076e346711f3d386568e07b3f0957dbdd931a3dc9216727d1edbc8218ea92","target":"graph","created_at":"2026-05-18T01:09:24Z","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 calculate the low energy elementary excitations of a Bose-Einstein Condensate in an effective magnetic field. The field is created by the interplay between light beams carrying orbital angular momentum and the trapped atoms. We examine the role of the homogeneous magnetic field, familiar from studies of rotating condensates, and also investigate spectra for vector potentials with a more general radial dependence. We discuss the instabilities which arise and how these may be manifested.","authors_text":"Campus Universitat Illes Balears, CSIC-UIB, Dami\\'a Gomila (3), D. R. Murray (1), Edinburgh, Glasgow, Heriot-Watt University, Palma de Mallorca, P. \\\"Ohberg (2), Spain), Stephen M. Barnett (1) ((1) SUPA, UK (2) SUPA, UK (3) IFISC, University of Strathclyde","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.other","submitted_at":"2007-06-14T10:25:49Z","title":"Elementary Excitations of a Bose-Einstein Condensate in an Effective Magnetic Field"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0706.2082","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":"sha256:67675ca44c1ebe56a9a26415bce053cf6e2cd3ca2f40176c7752fde6d316734a","target":"record","created_at":"2026-05-18T01:09:24Z","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":"774307a55b409af3737a1f584d2cb977b75aa40f6100d9975852cffe444509dd","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.other","submitted_at":"2007-06-14T10:25:49Z","title_canon_sha256":"282b9dcbc2b0068405ffc175bd3919274a356bb4ddf975b811e1c7408b0b8b6f"},"schema_version":"1.0","source":{"id":"0706.2082","kind":"arxiv","version":1}},"canonical_sha256":"a08eeb2055a3ae7699621c6c30b236678b6462013a508bfd3dbf0f016e8293fd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a08eeb2055a3ae7699621c6c30b236678b6462013a508bfd3dbf0f016e8293fd","first_computed_at":"2026-05-18T01:09:24.616091Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:09:24.616091Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5a8Ed2lEn2Wse93PitwPCob3xdUPYztVQL8tJdq1VG47Tk/dTzD5rjqCi5zh/nc2uyAQ+TkIhXW3dxKnSInaDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:09:24.616481Z","signed_message":"canonical_sha256_bytes"},"source_id":"0706.2082","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:67675ca44c1ebe56a9a26415bce053cf6e2cd3ca2f40176c7752fde6d316734a","sha256:55f076e346711f3d386568e07b3f0957dbdd931a3dc9216727d1edbc8218ea92"],"state_sha256":"9cf7f3e807ad4c6d0148cd1dd9c5033b8bed4392c33becdb466f2cdbe748e877"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VqLYeouKlRvTcswQInHti1YEsEtufssdZdlBAFiesAHBoXfxpXkm9O5vsEHKWKNGRbxIDYCK2bDeo2zQd51DAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T22:01:03.529863Z","bundle_sha256":"a41b5e88da2d2986108e6673854c21738467a1516bd8992d5dc2457c1a254448"}}