{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:PEES3RVDTLCPW5OLX6OOPUUMHK","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":"0fe991e283f43923a225224ea040f689449d335bb577c4344bb17bb885507d48","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.atom-ph","submitted_at":"2025-09-09T03:23:05Z","title_canon_sha256":"7304089818168bb0e2748384a62f22ab4c9124369f9cf5e2c9b71f157f86ad99"},"schema_version":"1.0","source":{"id":"2509.07364","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2509.07364","created_at":"2026-07-05T12:07:20Z"},{"alias_kind":"arxiv_version","alias_value":"2509.07364v1","created_at":"2026-07-05T12:07:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2509.07364","created_at":"2026-07-05T12:07:20Z"},{"alias_kind":"pith_short_12","alias_value":"PEES3RVDTLCP","created_at":"2026-07-05T12:07:20Z"},{"alias_kind":"pith_short_16","alias_value":"PEES3RVDTLCPW5OL","created_at":"2026-07-05T12:07:20Z"},{"alias_kind":"pith_short_8","alias_value":"PEES3RVD","created_at":"2026-07-05T12:07:20Z"}],"graph_snapshots":[{"event_id":"sha256:1d3ef204894d7511c9b6d445df4ba37c14859060315348274561acc2940eb189","target":"graph","created_at":"2026-07-05T12:07:20Z","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/2509.07364/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Ytterbium (Yb) is used in cold-atom systems, including magneto-optical traps and optical lattice clocks. However, the long-term operation of such systems may be associated with substantial degradation of optical transmittance through vacuum chamber viewports due to Yb adsorption. Here, we show that coating the surface with tetracontane effectively suppresses such adsorption.","authors_text":"Atsushi Hatakeyama, Kanta Asakawa, Masami Yasuda, Taichi Kobayashi, Takao Aoki","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.atom-ph","submitted_at":"2025-09-09T03:23:05Z","title":"Prevention of Yb adsorption by paraffin coating"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2509.07364","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":"sha256:9dbe42801ca85c4604b47a5b52cb925c8228b62b70bf49bfd9f447cdede80de5","target":"record","created_at":"2026-07-05T12:07:20Z","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":"0fe991e283f43923a225224ea040f689449d335bb577c4344bb17bb885507d48","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.atom-ph","submitted_at":"2025-09-09T03:23:05Z","title_canon_sha256":"7304089818168bb0e2748384a62f22ab4c9124369f9cf5e2c9b71f157f86ad99"},"schema_version":"1.0","source":{"id":"2509.07364","kind":"arxiv","version":1}},"canonical_sha256":"79092dc6a39ac4fb75cbbf9ce7d28c3aaa13e83027bab24df43187fb8df0f953","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"79092dc6a39ac4fb75cbbf9ce7d28c3aaa13e83027bab24df43187fb8df0f953","first_computed_at":"2026-07-05T12:07:20.316307Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T12:07:20.316307Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"91qi1Vk195pJx33bKMN3LDbGLqqfRrV+oeamgshSub5VbhD1ws4/usD+7itHtp9uBWFQx5vfywNxRt4wtDm9Dw==","signature_status":"signed_v1","signed_at":"2026-07-05T12:07:20.316810Z","signed_message":"canonical_sha256_bytes"},"source_id":"2509.07364","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9dbe42801ca85c4604b47a5b52cb925c8228b62b70bf49bfd9f447cdede80de5","sha256:1d3ef204894d7511c9b6d445df4ba37c14859060315348274561acc2940eb189"],"state_sha256":"c66ff8c3ce6c345d10e6f0aa9530f808e9fb50e6f5a5f148e0d6bf8bcfb9aed1"}