{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:4LBQPMCZ4KTPHJ2E5ZG5SUBPW3","short_pith_number":"pith:4LBQPMCZ","canonical_record":{"source":{"id":"1906.05196","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2019-06-12T15:11:18Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"9ea3b4756a31d49586bd9c881416a60af3ea7a7986f02d241b557d1d6aa812f7","abstract_canon_sha256":"cfb5fb45089b62a801c1a0ec6a9c18b385dd394a25a2938bf92983b18944b5bc"},"schema_version":"1.0"},"canonical_sha256":"e2c307b059e2a6f3a744ee4dd9502fb6ddbf11cd83883c35e89a6d7a30840308","source":{"kind":"arxiv","id":"1906.05196","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1906.05196","created_at":"2026-05-17T23:43:29Z"},{"alias_kind":"arxiv_version","alias_value":"1906.05196v1","created_at":"2026-05-17T23:43:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1906.05196","created_at":"2026-05-17T23:43:29Z"},{"alias_kind":"pith_short_12","alias_value":"4LBQPMCZ4KTP","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_16","alias_value":"4LBQPMCZ4KTPHJ2E","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_8","alias_value":"4LBQPMCZ","created_at":"2026-05-18T12:33:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:4LBQPMCZ4KTPHJ2E5ZG5SUBPW3","target":"record","payload":{"canonical_record":{"source":{"id":"1906.05196","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2019-06-12T15:11:18Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"9ea3b4756a31d49586bd9c881416a60af3ea7a7986f02d241b557d1d6aa812f7","abstract_canon_sha256":"cfb5fb45089b62a801c1a0ec6a9c18b385dd394a25a2938bf92983b18944b5bc"},"schema_version":"1.0"},"canonical_sha256":"e2c307b059e2a6f3a744ee4dd9502fb6ddbf11cd83883c35e89a6d7a30840308","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:43:29.221580Z","signature_b64":"f/sWIMLJxZTu6aN2/etXidaln8wda3P8XzSPp0ZoERwTGYOCABGU8QiyOR5Bzu/FymGnVd5w+SttYH3MyQX6BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e2c307b059e2a6f3a744ee4dd9502fb6ddbf11cd83883c35e89a6d7a30840308","last_reissued_at":"2026-05-17T23:43:29.221104Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:43:29.221104Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1906.05196","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":"2026-05-17T23:43:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BALmjjP4gZMXLgXLh4ruCIgbxGAdl4JZNWk0VMD8SlXn1Re/X/cHr6UTXzf4HEv1YJHzUMFkl+ehdAZFfeJNBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T23:16:18.604613Z"},"content_sha256":"a627ce67204c93c486a4bd0b93f4559161a0fd355de523193c63c421b05f2355","schema_version":"1.0","event_id":"sha256:a627ce67204c93c486a4bd0b93f4559161a0fd355de523193c63c421b05f2355"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:4LBQPMCZ4KTPHJ2E5ZG5SUBPW3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Outcoupling from a Bose-Einstein condensate in the strong-field limit","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"cond-mat.quant-gas","authors_text":"Andreas G\\\"unther, Carola Beck, Caroline Arnold, Daniel Braun, J\\'ozsef Fort\\'agh, Malte Reinschmidt, Peter Federsel","submitted_at":"2019-06-12T15:11:18Z","abstract_excerpt":"Atoms can be extracted from a trapped Bose-Einstein condensate (BEC) by driving spin-flips to untrapped states. The coherence properties of the BEC are transfered to the released atoms, creating a coherent beam of matter refered to as an atom laser. In this work, the extraction of atoms from a BEC is investigated numerically by solving a coupled set of Gross-Pitaevskii equations in up to three dimensions. The result is compared to experimental data and a semiclassical rate model. In the weak-coupling regime, quantitative agreement is reached between theory and experiment and a semiclassical ra"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.05196","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":"2026-05-17T23:43:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RV2bQXAjDH4ZTckBshg8QsZxtjVrE7/6oezgXW0d4t5m6lH+/Th9SgvIrjXGTeHvWcl5duqu/IGCXwtPzpJACQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T23:16:18.604959Z"},"content_sha256":"4cde729aeb6e47934ea7d7a4f53644c8323d7bc270ae990c913e5b08f750f5b5","schema_version":"1.0","event_id":"sha256:4cde729aeb6e47934ea7d7a4f53644c8323d7bc270ae990c913e5b08f750f5b5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4LBQPMCZ4KTPHJ2E5ZG5SUBPW3/bundle.json","state_url":"https://pith.science/pith/4LBQPMCZ4KTPHJ2E5ZG5SUBPW3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4LBQPMCZ4KTPHJ2E5ZG5SUBPW3/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":"2026-06-03T23:16:18Z","links":{"resolver":"https://pith.science/pith/4LBQPMCZ4KTPHJ2E5ZG5SUBPW3","bundle":"https://pith.science/pith/4LBQPMCZ4KTPHJ2E5ZG5SUBPW3/bundle.json","state":"https://pith.science/pith/4LBQPMCZ4KTPHJ2E5ZG5SUBPW3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4LBQPMCZ4KTPHJ2E5ZG5SUBPW3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:4LBQPMCZ4KTPHJ2E5ZG5SUBPW3","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":"cfb5fb45089b62a801c1a0ec6a9c18b385dd394a25a2938bf92983b18944b5bc","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2019-06-12T15:11:18Z","title_canon_sha256":"9ea3b4756a31d49586bd9c881416a60af3ea7a7986f02d241b557d1d6aa812f7"},"schema_version":"1.0","source":{"id":"1906.05196","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1906.05196","created_at":"2026-05-17T23:43:29Z"},{"alias_kind":"arxiv_version","alias_value":"1906.05196v1","created_at":"2026-05-17T23:43:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1906.05196","created_at":"2026-05-17T23:43:29Z"},{"alias_kind":"pith_short_12","alias_value":"4LBQPMCZ4KTP","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_16","alias_value":"4LBQPMCZ4KTPHJ2E","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_8","alias_value":"4LBQPMCZ","created_at":"2026-05-18T12:33:10Z"}],"graph_snapshots":[{"event_id":"sha256:4cde729aeb6e47934ea7d7a4f53644c8323d7bc270ae990c913e5b08f750f5b5","target":"graph","created_at":"2026-05-17T23:43:29Z","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":"Atoms can be extracted from a trapped Bose-Einstein condensate (BEC) by driving spin-flips to untrapped states. The coherence properties of the BEC are transfered to the released atoms, creating a coherent beam of matter refered to as an atom laser. In this work, the extraction of atoms from a BEC is investigated numerically by solving a coupled set of Gross-Pitaevskii equations in up to three dimensions. The result is compared to experimental data and a semiclassical rate model. In the weak-coupling regime, quantitative agreement is reached between theory and experiment and a semiclassical ra","authors_text":"Andreas G\\\"unther, Carola Beck, Caroline Arnold, Daniel Braun, J\\'ozsef Fort\\'agh, Malte Reinschmidt, Peter Federsel","cross_cats":["quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2019-06-12T15:11:18Z","title":"Outcoupling from a Bose-Einstein condensate in the strong-field limit"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.05196","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:a627ce67204c93c486a4bd0b93f4559161a0fd355de523193c63c421b05f2355","target":"record","created_at":"2026-05-17T23:43:29Z","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":"cfb5fb45089b62a801c1a0ec6a9c18b385dd394a25a2938bf92983b18944b5bc","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2019-06-12T15:11:18Z","title_canon_sha256":"9ea3b4756a31d49586bd9c881416a60af3ea7a7986f02d241b557d1d6aa812f7"},"schema_version":"1.0","source":{"id":"1906.05196","kind":"arxiv","version":1}},"canonical_sha256":"e2c307b059e2a6f3a744ee4dd9502fb6ddbf11cd83883c35e89a6d7a30840308","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e2c307b059e2a6f3a744ee4dd9502fb6ddbf11cd83883c35e89a6d7a30840308","first_computed_at":"2026-05-17T23:43:29.221104Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:43:29.221104Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"f/sWIMLJxZTu6aN2/etXidaln8wda3P8XzSPp0ZoERwTGYOCABGU8QiyOR5Bzu/FymGnVd5w+SttYH3MyQX6BA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:43:29.221580Z","signed_message":"canonical_sha256_bytes"},"source_id":"1906.05196","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a627ce67204c93c486a4bd0b93f4559161a0fd355de523193c63c421b05f2355","sha256:4cde729aeb6e47934ea7d7a4f53644c8323d7bc270ae990c913e5b08f750f5b5"],"state_sha256":"90a6c8a371fe52dfc5633c68a25a5e413cffe13ba4900c44fe52286613694057"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jbaKiz3b9O6lqleEjvttYxgmdy+WFCDRotJu19lw/HnIA1UGj0YkeW9syvFlapHmI0WSo36/ewfbz2gQHNBWAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T23:16:18.606895Z","bundle_sha256":"fb1e3275932f08a850275aca4358c90a8855cba4cbf8e87337da0332cbb2babb"}}