{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:YZVSOHBO3PVG55ILALCCMP43OO","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":"fe0b83961e0185eae45fb0d23690795b952f85fa172367e4bd548b5208a43159","cross_cats_sorted":["physics.space-ph","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2025-09-10T15:03:35Z","title_canon_sha256":"b61c49109540870a38e110a54dcfe8158e5794c5b5c6d4b86dfc24f523e17596"},"schema_version":"1.0","source":{"id":"2509.08666","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2509.08666","created_at":"2026-07-05T12:08:33Z"},{"alias_kind":"arxiv_version","alias_value":"2509.08666v1","created_at":"2026-07-05T12:08:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2509.08666","created_at":"2026-07-05T12:08:33Z"},{"alias_kind":"pith_short_12","alias_value":"YZVSOHBO3PVG","created_at":"2026-07-05T12:08:33Z"},{"alias_kind":"pith_short_16","alias_value":"YZVSOHBO3PVG55IL","created_at":"2026-07-05T12:08:33Z"},{"alias_kind":"pith_short_8","alias_value":"YZVSOHBO","created_at":"2026-07-05T12:08:33Z"}],"graph_snapshots":[{"event_id":"sha256:27dc0ac8cf8158fd729f301d346ffd299e0f66f5b8d0117a93e832d964cb5eb3","target":"graph","created_at":"2026-07-05T12:08:33Z","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/2509.08666/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Optically trapped Silica nanoparticles are a promising tool for precise sensing of gravitational or inertial forces and fundamental physics, including tests of quantum mechanics at 'large' mass scales. This field, called levitated optomechanics can greatly benefit from an application in weightlessness. In this paper we demonstrate the feasibility of such setups in a microgravity environment for the first time. Our experiment is operated in the GraviTower Bremen that provides up to 2.5 s of free fall. System performance and first release-recapture experiments, where the particle is no longer tr","authors_text":"Christian Vogt, Govindarajan Prakash, Ralf B. Bergmann, Sven Herrmann","cross_cats":["physics.space-ph","quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2025-09-10T15:03:35Z","title":"Release and Recapture of Silica Nanoparticles from an Optical Trap in Weightlessness"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2509.08666","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:e1cec00e0488b038cca197c2ea67075d0cbeaccf32caed6797d6ebfe85c5b845","target":"record","created_at":"2026-07-05T12:08:33Z","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":"fe0b83961e0185eae45fb0d23690795b952f85fa172367e4bd548b5208a43159","cross_cats_sorted":["physics.space-ph","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2025-09-10T15:03:35Z","title_canon_sha256":"b61c49109540870a38e110a54dcfe8158e5794c5b5c6d4b86dfc24f523e17596"},"schema_version":"1.0","source":{"id":"2509.08666","kind":"arxiv","version":1}},"canonical_sha256":"c66b271c2edbea6ef50b02c4263f9b738ae7bfe84bd322a5f97d7220e4319b15","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c66b271c2edbea6ef50b02c4263f9b738ae7bfe84bd322a5f97d7220e4319b15","first_computed_at":"2026-07-05T12:08:33.932672Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T12:08:33.932672Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"azeel2/B+/Mqs4QAjZB2ZdnosVxY3ZujMD/pAuj+Xp16+3jPdyi9fStpgeSrHqhgpvp9WhPsVmk80OhW+XXzAg==","signature_status":"signed_v1","signed_at":"2026-07-05T12:08:33.933205Z","signed_message":"canonical_sha256_bytes"},"source_id":"2509.08666","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e1cec00e0488b038cca197c2ea67075d0cbeaccf32caed6797d6ebfe85c5b845","sha256:27dc0ac8cf8158fd729f301d346ffd299e0f66f5b8d0117a93e832d964cb5eb3"],"state_sha256":"d554cb8105acf349469327f7f9d8ef4fef252cb1042c5d718a383b13ac085222"}