{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:K74LCIJJA7JMSFQNXSDNMGL3IM","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":"b72bd2d3480bed6d411456ed18fabb46768f6fd5b676d09ac30f5529d0aa71b7","cross_cats_sorted":["physics.optics"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.atom-ph","submitted_at":"2021-08-26T19:32:11Z","title_canon_sha256":"d1923239e9b50af6d0288ca8aa65dbee846fb8fbec5dad2068789beb2fb7a464"},"schema_version":"1.0","source":{"id":"2108.12008","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.12008","created_at":"2026-07-05T03:34:33Z"},{"alias_kind":"arxiv_version","alias_value":"2108.12008v1","created_at":"2026-07-05T03:34:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.12008","created_at":"2026-07-05T03:34:33Z"},{"alias_kind":"pith_short_12","alias_value":"K74LCIJJA7JM","created_at":"2026-07-05T03:34:33Z"},{"alias_kind":"pith_short_16","alias_value":"K74LCIJJA7JMSFQN","created_at":"2026-07-05T03:34:33Z"},{"alias_kind":"pith_short_8","alias_value":"K74LCIJJ","created_at":"2026-07-05T03:34:33Z"}],"graph_snapshots":[{"event_id":"sha256:a17cc035d8088b45ea6cd4d64735c15e832aac546bc3b80cc00275e87526a651","target":"graph","created_at":"2026-07-05T03:34:33Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2108.12008/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We demonstrate a simple stacked scheme that enables absorption imaging through a hole in the surface of a grating magneto-optical trap (GMOT) chip, placed immediately below a micro-fabricated vacuum cell. The imaging scheme is capable of overcoming the reduced optical access and surface scatter that is associated with this chip-scale platform, while further permitting both trapping and imaging of the atoms from a single incident laser beam. The through-hole imaging is used to characterise the impact of the reduced optical overlap volume of the GMOT in the chip-scale cell, with an outlook to an","authors_text":"A. Bregazzi, A. S. Arnold, D. P. Burt, E. Riis, G. Martinez, J. Kitching, J. P. McGilligan, P. F. Griffin, R. Boudot","cross_cats":["physics.optics"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.atom-ph","submitted_at":"2021-08-26T19:32:11Z","title":"A simple imaging solution for chip-scale laser cooling"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.12008","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:e115f0b975f419e87cd7c7830e8498e2da03e029311c31a0cedfc622dff4c61c","target":"record","created_at":"2026-07-05T03:34:33Z","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":"b72bd2d3480bed6d411456ed18fabb46768f6fd5b676d09ac30f5529d0aa71b7","cross_cats_sorted":["physics.optics"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.atom-ph","submitted_at":"2021-08-26T19:32:11Z","title_canon_sha256":"d1923239e9b50af6d0288ca8aa65dbee846fb8fbec5dad2068789beb2fb7a464"},"schema_version":"1.0","source":{"id":"2108.12008","kind":"arxiv","version":1}},"canonical_sha256":"57f8b1212907d2c9160dbc86d6197b431813380c0ea5ebbd949b3f6f79c4674b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"57f8b1212907d2c9160dbc86d6197b431813380c0ea5ebbd949b3f6f79c4674b","first_computed_at":"2026-07-05T03:34:33.821006Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:34:33.821006Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ux8p+TbxsFwfpn/3IyJbtNv2QvRuhiWL7+acqzBbI15PMTmd8qc43W+I/PhDq0/u7SMl29mCx8e9nndT87QlAg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:34:33.821452Z","signed_message":"canonical_sha256_bytes"},"source_id":"2108.12008","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e115f0b975f419e87cd7c7830e8498e2da03e029311c31a0cedfc622dff4c61c","sha256:a17cc035d8088b45ea6cd4d64735c15e832aac546bc3b80cc00275e87526a651"],"state_sha256":"571030faa21a970d66dbc734cba641bfe70026d390318c6396c6ee0e3dd1b852"}