{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:J2MDG5GR7RSYZFOORGASWIVW2E","short_pith_number":"pith:J2MDG5GR","canonical_record":{"source":{"id":"1608.03221","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2016-08-10T15:54:17Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"557c204bd97e5e3a21cab4e88a3650413ae928ea135e5b1c25d2222d49016973","abstract_canon_sha256":"91e349e5c204c78684515249bf53946fee5bd91102de9ccdf605f74f0be40d73"},"schema_version":"1.0"},"canonical_sha256":"4e983374d1fc658c95ce89812b22b6d10e05d0b0faeb3a4d550dd52843c78416","source":{"kind":"arxiv","id":"1608.03221","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1608.03221","created_at":"2026-05-18T01:09:29Z"},{"alias_kind":"arxiv_version","alias_value":"1608.03221v1","created_at":"2026-05-18T01:09:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1608.03221","created_at":"2026-05-18T01:09:29Z"},{"alias_kind":"pith_short_12","alias_value":"J2MDG5GR7RSY","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_16","alias_value":"J2MDG5GR7RSYZFOO","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_8","alias_value":"J2MDG5GR","created_at":"2026-05-18T12:30:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:J2MDG5GR7RSYZFOORGASWIVW2E","target":"record","payload":{"canonical_record":{"source":{"id":"1608.03221","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2016-08-10T15:54:17Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"557c204bd97e5e3a21cab4e88a3650413ae928ea135e5b1c25d2222d49016973","abstract_canon_sha256":"91e349e5c204c78684515249bf53946fee5bd91102de9ccdf605f74f0be40d73"},"schema_version":"1.0"},"canonical_sha256":"4e983374d1fc658c95ce89812b22b6d10e05d0b0faeb3a4d550dd52843c78416","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:09:29.991709Z","signature_b64":"o84ZIcyYX0TK2x2NojF8nq79YDHu8AS2dFMqNuBv6nFX4a1ieoVGYAO6og1Kfyagjdddv//mnjnuUIl7colrAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4e983374d1fc658c95ce89812b22b6d10e05d0b0faeb3a4d550dd52843c78416","last_reissued_at":"2026-05-18T01:09:29.991277Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:09:29.991277Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1608.03221","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":"2026-05-18T01:09:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"i3Kf/bFAb8rrJZzeY+ckadMe4wU8W2cxpQdiGK3NY1joMsTXOGcr44bL9BFz6s8VmtLcafAeZ66sVvcDzfaZDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T14:33:48.777338Z"},"content_sha256":"3a72754cd821dced65df4fdd0b5e9d0eee5f88d95072887df645c840eefc8649","schema_version":"1.0","event_id":"sha256:3a72754cd821dced65df4fdd0b5e9d0eee5f88d95072887df645c840eefc8649"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:J2MDG5GR7RSYZFOORGASWIVW2E","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Compact setup for the production of $^{87}$Rb $|F = 2, m_F = +2\\rangle$ Bose-Einstein condensates in a hybrid trap","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.ins-det"],"primary_cat":"physics.atom-ph","authors_text":"Arne Wickenbrock, Ferruccio Renzoni, Luca Marmugi, Michela Venturelli, Raffaele Nolli","submitted_at":"2016-08-10T15:54:17Z","abstract_excerpt":"We present a compact experimental apparatus for Bose-Einstein condensation of $^{87}$Rb in the $|F = 2, m_F = +2\\rangle$ state. A pre-cooled atomic beam of $^{87}$Rb is obtained by using an unbalanced magneto-optical trap, allowing controlled transfer of trapped atoms from the first vacuum chamber to the science chamber. Here, atoms are transferred to a hybrid trap, as produced by overlapping a magnetic quadrupole trap with a far-detuned optical trap with crossed beam configuration, where forced radiofrequency evaporation is realized. The final evaporation leading to Bose-Einstein condensation"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1608.03221","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":"2026-05-18T01:09:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4draabZCLsZH0j08ow5ztCd6NRK14odYSaYONGEcT1Vw+UxJFpVmrRbYtu7PMglgzxkFxaxjuZ4no3zmz6TLAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T14:33:48.777694Z"},"content_sha256":"4671c51fc70497ae2ce887e40bc8590d5c5924a868e2936da22387d3ecc71403","schema_version":"1.0","event_id":"sha256:4671c51fc70497ae2ce887e40bc8590d5c5924a868e2936da22387d3ecc71403"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/J2MDG5GR7RSYZFOORGASWIVW2E/bundle.json","state_url":"https://pith.science/pith/J2MDG5GR7RSYZFOORGASWIVW2E/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/J2MDG5GR7RSYZFOORGASWIVW2E/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":"2026-06-01T14:33:48Z","links":{"resolver":"https://pith.science/pith/J2MDG5GR7RSYZFOORGASWIVW2E","bundle":"https://pith.science/pith/J2MDG5GR7RSYZFOORGASWIVW2E/bundle.json","state":"https://pith.science/pith/J2MDG5GR7RSYZFOORGASWIVW2E/state.json","well_known_bundle":"https://pith.science/.well-known/pith/J2MDG5GR7RSYZFOORGASWIVW2E/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:J2MDG5GR7RSYZFOORGASWIVW2E","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":"91e349e5c204c78684515249bf53946fee5bd91102de9ccdf605f74f0be40d73","cross_cats_sorted":["physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2016-08-10T15:54:17Z","title_canon_sha256":"557c204bd97e5e3a21cab4e88a3650413ae928ea135e5b1c25d2222d49016973"},"schema_version":"1.0","source":{"id":"1608.03221","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1608.03221","created_at":"2026-05-18T01:09:29Z"},{"alias_kind":"arxiv_version","alias_value":"1608.03221v1","created_at":"2026-05-18T01:09:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1608.03221","created_at":"2026-05-18T01:09:29Z"},{"alias_kind":"pith_short_12","alias_value":"J2MDG5GR7RSY","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_16","alias_value":"J2MDG5GR7RSYZFOO","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_8","alias_value":"J2MDG5GR","created_at":"2026-05-18T12:30:22Z"}],"graph_snapshots":[{"event_id":"sha256:4671c51fc70497ae2ce887e40bc8590d5c5924a868e2936da22387d3ecc71403","target":"graph","created_at":"2026-05-18T01:09:29Z","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":"We present a compact experimental apparatus for Bose-Einstein condensation of $^{87}$Rb in the $|F = 2, m_F = +2\\rangle$ state. A pre-cooled atomic beam of $^{87}$Rb is obtained by using an unbalanced magneto-optical trap, allowing controlled transfer of trapped atoms from the first vacuum chamber to the science chamber. Here, atoms are transferred to a hybrid trap, as produced by overlapping a magnetic quadrupole trap with a far-detuned optical trap with crossed beam configuration, where forced radiofrequency evaporation is realized. The final evaporation leading to Bose-Einstein condensation","authors_text":"Arne Wickenbrock, Ferruccio Renzoni, Luca Marmugi, Michela Venturelli, Raffaele Nolli","cross_cats":["physics.ins-det"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2016-08-10T15:54:17Z","title":"Compact setup for the production of $^{87}$Rb $|F = 2, m_F = +2\\rangle$ Bose-Einstein condensates in a hybrid trap"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1608.03221","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":"sha256:3a72754cd821dced65df4fdd0b5e9d0eee5f88d95072887df645c840eefc8649","target":"record","created_at":"2026-05-18T01:09:29Z","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":"91e349e5c204c78684515249bf53946fee5bd91102de9ccdf605f74f0be40d73","cross_cats_sorted":["physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2016-08-10T15:54:17Z","title_canon_sha256":"557c204bd97e5e3a21cab4e88a3650413ae928ea135e5b1c25d2222d49016973"},"schema_version":"1.0","source":{"id":"1608.03221","kind":"arxiv","version":1}},"canonical_sha256":"4e983374d1fc658c95ce89812b22b6d10e05d0b0faeb3a4d550dd52843c78416","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4e983374d1fc658c95ce89812b22b6d10e05d0b0faeb3a4d550dd52843c78416","first_computed_at":"2026-05-18T01:09:29.991277Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:09:29.991277Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"o84ZIcyYX0TK2x2NojF8nq79YDHu8AS2dFMqNuBv6nFX4a1ieoVGYAO6og1Kfyagjdddv//mnjnuUIl7colrAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:09:29.991709Z","signed_message":"canonical_sha256_bytes"},"source_id":"1608.03221","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3a72754cd821dced65df4fdd0b5e9d0eee5f88d95072887df645c840eefc8649","sha256:4671c51fc70497ae2ce887e40bc8590d5c5924a868e2936da22387d3ecc71403"],"state_sha256":"c20d8ed1ac6825e7ef70229c4c38cefd15632552f33157acc023e70dc7e70d7d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JHPKq0Ae9+YG4m4AoadJJWCdRWG+nXnHWfEmelKCRO9aZLxcBv5zGAX7428VGX+OM6hYzcpU+CmxTGS/DekwCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T14:33:48.779738Z","bundle_sha256":"ab23a7b39f7f6ddd530b2b115252acf302a464410c2e2e96e0033fe387001535"}}