{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2003:5JQVQWZYKOQPZKQYXSN5ENPOUR","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":"38627a081e67208d2c61a2a0e5cdd5c27eded2d05d24f16b6795ca351b82d71b","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2003-06-20T17:41:09Z","title_canon_sha256":"83f9c2705a79c856ab54a95f707da830614587a6f7e574c67c0a0d1b798ffdf3"},"schema_version":"1.0","source":{"id":"quant-ph/0306136","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/0306136","created_at":"2026-07-04T16:42:32Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0306136v2","created_at":"2026-07-04T16:42:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0306136","created_at":"2026-07-04T16:42:32Z"},{"alias_kind":"pith_short_12","alias_value":"5JQVQWZYKOQP","created_at":"2026-07-04T16:42:32Z"},{"alias_kind":"pith_short_16","alias_value":"5JQVQWZYKOQPZKQY","created_at":"2026-07-04T16:42:32Z"},{"alias_kind":"pith_short_8","alias_value":"5JQVQWZY","created_at":"2026-07-04T16:42:32Z"}],"graph_snapshots":[{"event_id":"sha256:df577147865ad927ebc2d34007559020deb5ae8f0b7b6fc39f2e02867dd2df6d","target":"graph","created_at":"2026-07-04T16:42:32Z","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/quant-ph/0306136/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The first precise measurement of the Casimir force between dissimilar metals is reported. The attractive force, between a Cu layer evaporated on a microelectromechanical torsional oscillator, and an Au layer deposited on an Al$_2$O$_3$ sphere, was measured dynamically with a noise level of 6 fN/$\\sqrt{\\rm{Hz}}$. Measurements were performed for separations in the 0.2-2 $\\mu$m range. The results agree to better than 1% in the 0.2-0.5 $\\mu$m range with a theoretical model that takes into account the finite conductivity and roughness of the two metals. The observed discrepancies, which are much la","authors_text":"D. E. Krause, D. L\\'opez, E. Fischbach, R. S. Decca","cross_cats":[],"headline":"","license":"","primary_cat":"quant-ph","submitted_at":"2003-06-20T17:41:09Z","title":"Measurement of the Casimir force between dissimilar metals"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0306136","kind":"arxiv","version":2},"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":"sha256:6399bf13f4afa2b1649d03548593db89452e4a9821c7ca12d65aa8f65aafb839","target":"record","created_at":"2026-07-04T16:42:32Z","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":"38627a081e67208d2c61a2a0e5cdd5c27eded2d05d24f16b6795ca351b82d71b","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2003-06-20T17:41:09Z","title_canon_sha256":"83f9c2705a79c856ab54a95f707da830614587a6f7e574c67c0a0d1b798ffdf3"},"schema_version":"1.0","source":{"id":"quant-ph/0306136","kind":"arxiv","version":2}},"canonical_sha256":"ea61585b3853a0fcaa18bc9bd235eea45b0d33e6e1d50d6b900799b3cd6b51c0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ea61585b3853a0fcaa18bc9bd235eea45b0d33e6e1d50d6b900799b3cd6b51c0","first_computed_at":"2026-07-04T16:42:32.262538Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:42:32.262538Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Q4NIT1PiDCcyLU16L1hnD+xBMCATQrF5WeBOQude8vkzxHvk7L3czBEJ7kckkxkautfwvyOBzitXosFyVBR7CA==","signature_status":"signed_v1","signed_at":"2026-07-04T16:42:32.262970Z","signed_message":"canonical_sha256_bytes"},"source_id":"quant-ph/0306136","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6399bf13f4afa2b1649d03548593db89452e4a9821c7ca12d65aa8f65aafb839","sha256:df577147865ad927ebc2d34007559020deb5ae8f0b7b6fc39f2e02867dd2df6d"],"state_sha256":"db61a04df9c9a85dd0b65baa06f11acd808b043ec3939eaf591c3112aa7e9be6"}