{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:Q7DYAV6RT4IBO4O5FUYQIGAOKI","short_pith_number":"pith:Q7DYAV6R","canonical_record":{"source":{"id":"2104.03857","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-04-08T16:00:59Z","cross_cats_sorted":["cond-mat.other"],"title_canon_sha256":"0fd104774899cc87c71dfefb9e5ce6ca976f881ab8693ff2eae8185627bdb19e","abstract_canon_sha256":"2e9df3848f79fce238bce0b7da823d0071ebf2aa3c8b88355e7df24dd5e9c730"},"schema_version":"1.0"},"canonical_sha256":"87c78057d19f101771dd2d3104180e52083d1df68a0aafbc29be19e89534ce9f","source":{"kind":"arxiv","id":"2104.03857","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2104.03857","created_at":"2026-07-05T02:30:24Z"},{"alias_kind":"arxiv_version","alias_value":"2104.03857v1","created_at":"2026-07-05T02:30:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2104.03857","created_at":"2026-07-05T02:30:24Z"},{"alias_kind":"pith_short_12","alias_value":"Q7DYAV6RT4IB","created_at":"2026-07-05T02:30:24Z"},{"alias_kind":"pith_short_16","alias_value":"Q7DYAV6RT4IBO4O5","created_at":"2026-07-05T02:30:24Z"},{"alias_kind":"pith_short_8","alias_value":"Q7DYAV6R","created_at":"2026-07-05T02:30:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:Q7DYAV6RT4IBO4O5FUYQIGAOKI","target":"record","payload":{"canonical_record":{"source":{"id":"2104.03857","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-04-08T16:00:59Z","cross_cats_sorted":["cond-mat.other"],"title_canon_sha256":"0fd104774899cc87c71dfefb9e5ce6ca976f881ab8693ff2eae8185627bdb19e","abstract_canon_sha256":"2e9df3848f79fce238bce0b7da823d0071ebf2aa3c8b88355e7df24dd5e9c730"},"schema_version":"1.0"},"canonical_sha256":"87c78057d19f101771dd2d3104180e52083d1df68a0aafbc29be19e89534ce9f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:30:24.343678Z","signature_b64":"BbkEdciivjtTpg+1MOXZ4NbkNpTRZXpFbmIRNbQkbGOEQXN7IUy/72carkZqjb0Lmz7nuWwLwRnf8YPvbaJ2DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"87c78057d19f101771dd2d3104180e52083d1df68a0aafbc29be19e89534ce9f","last_reissued_at":"2026-07-05T02:30:24.343170Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:30:24.343170Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2104.03857","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":"2026-07-05T02:30:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GKTApbYlSCraa4OOtIHgp07AIOzzSDUizgoeF5twnypb+3m/i/djbGfJ48uKu0+P5TaSXMx5OzDt9zYpqQaLCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T23:16:19.025304Z"},"content_sha256":"7f73f45a1aec597d8ca4a53a29754e6599fc15856f0d548e34bdcff08f5a064f","schema_version":"1.0","event_id":"sha256:7f73f45a1aec597d8ca4a53a29754e6599fc15856f0d548e34bdcff08f5a064f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:Q7DYAV6RT4IBO4O5FUYQIGAOKI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Measurement of the Casimir Force between 0.2 and 8 mum: Experimental Procedures and Comparison with Theory","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.other"],"primary_cat":"quant-ph","authors_text":"Benjamin Spreng, Galina L. Klimchitskaya, Gert-Ludwig Ingold, Giuseppe Bimonte, Paulo A. Maia Neto, Ricardo S. Decca, Vladimir M. Mostepanenko","submitted_at":"2021-04-08T16:00:59Z","abstract_excerpt":"We present results on the determination of the differential Casimir force between an Au-coated sapphire sphere and the top and bottom of Au-coated deep silicon trenches performed by means of the micromechanical torsional oscillator in the range of separations from 0.2 to 8 $\\upmu$m. The random and systematic errors in the measured force signal are determined at the 95\\% confidence level and combined into the total experimental error. The role of surface roughness and edge effects is investigated and shown to be negligibly small. The distribution of patch potentials is characterized by Kelvin p"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2104.03857","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2104.03857/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T02:30:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fmoAyRBdNVR7yAI4oatgqEs/6AaYSZk/v5o+G7x5VruHyr5q77fx54dPLrc545g6LWftMERwGkkvN7CIW+exDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T23:16:19.026335Z"},"content_sha256":"ca71e18fad02bf3634d26c1b309ecfcf2a84706a3e0cda5ca3c92f82b3d8f37c","schema_version":"1.0","event_id":"sha256:ca71e18fad02bf3634d26c1b309ecfcf2a84706a3e0cda5ca3c92f82b3d8f37c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Q7DYAV6RT4IBO4O5FUYQIGAOKI/bundle.json","state_url":"https://pith.science/pith/Q7DYAV6RT4IBO4O5FUYQIGAOKI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Q7DYAV6RT4IBO4O5FUYQIGAOKI/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":"2026-08-05T23:16:19Z","links":{"resolver":"https://pith.science/pith/Q7DYAV6RT4IBO4O5FUYQIGAOKI","bundle":"https://pith.science/pith/Q7DYAV6RT4IBO4O5FUYQIGAOKI/bundle.json","state":"https://pith.science/pith/Q7DYAV6RT4IBO4O5FUYQIGAOKI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Q7DYAV6RT4IBO4O5FUYQIGAOKI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:Q7DYAV6RT4IBO4O5FUYQIGAOKI","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":"2e9df3848f79fce238bce0b7da823d0071ebf2aa3c8b88355e7df24dd5e9c730","cross_cats_sorted":["cond-mat.other"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-04-08T16:00:59Z","title_canon_sha256":"0fd104774899cc87c71dfefb9e5ce6ca976f881ab8693ff2eae8185627bdb19e"},"schema_version":"1.0","source":{"id":"2104.03857","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2104.03857","created_at":"2026-07-05T02:30:24Z"},{"alias_kind":"arxiv_version","alias_value":"2104.03857v1","created_at":"2026-07-05T02:30:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2104.03857","created_at":"2026-07-05T02:30:24Z"},{"alias_kind":"pith_short_12","alias_value":"Q7DYAV6RT4IB","created_at":"2026-07-05T02:30:24Z"},{"alias_kind":"pith_short_16","alias_value":"Q7DYAV6RT4IBO4O5","created_at":"2026-07-05T02:30:24Z"},{"alias_kind":"pith_short_8","alias_value":"Q7DYAV6R","created_at":"2026-07-05T02:30:24Z"}],"graph_snapshots":[{"event_id":"sha256:ca71e18fad02bf3634d26c1b309ecfcf2a84706a3e0cda5ca3c92f82b3d8f37c","target":"graph","created_at":"2026-07-05T02:30:24Z","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/2104.03857/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present results on the determination of the differential Casimir force between an Au-coated sapphire sphere and the top and bottom of Au-coated deep silicon trenches performed by means of the micromechanical torsional oscillator in the range of separations from 0.2 to 8 $\\upmu$m. The random and systematic errors in the measured force signal are determined at the 95\\% confidence level and combined into the total experimental error. The role of surface roughness and edge effects is investigated and shown to be negligibly small. The distribution of patch potentials is characterized by Kelvin p","authors_text":"Benjamin Spreng, Galina L. Klimchitskaya, Gert-Ludwig Ingold, Giuseppe Bimonte, Paulo A. Maia Neto, Ricardo S. Decca, Vladimir M. Mostepanenko","cross_cats":["cond-mat.other"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-04-08T16:00:59Z","title":"Measurement of the Casimir Force between 0.2 and 8 mum: Experimental Procedures and Comparison with Theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2104.03857","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":"sha256:7f73f45a1aec597d8ca4a53a29754e6599fc15856f0d548e34bdcff08f5a064f","target":"record","created_at":"2026-07-05T02:30:24Z","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":"2e9df3848f79fce238bce0b7da823d0071ebf2aa3c8b88355e7df24dd5e9c730","cross_cats_sorted":["cond-mat.other"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-04-08T16:00:59Z","title_canon_sha256":"0fd104774899cc87c71dfefb9e5ce6ca976f881ab8693ff2eae8185627bdb19e"},"schema_version":"1.0","source":{"id":"2104.03857","kind":"arxiv","version":1}},"canonical_sha256":"87c78057d19f101771dd2d3104180e52083d1df68a0aafbc29be19e89534ce9f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"87c78057d19f101771dd2d3104180e52083d1df68a0aafbc29be19e89534ce9f","first_computed_at":"2026-07-05T02:30:24.343170Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:30:24.343170Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BbkEdciivjtTpg+1MOXZ4NbkNpTRZXpFbmIRNbQkbGOEQXN7IUy/72carkZqjb0Lmz7nuWwLwRnf8YPvbaJ2DA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:30:24.343678Z","signed_message":"canonical_sha256_bytes"},"source_id":"2104.03857","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7f73f45a1aec597d8ca4a53a29754e6599fc15856f0d548e34bdcff08f5a064f","sha256:ca71e18fad02bf3634d26c1b309ecfcf2a84706a3e0cda5ca3c92f82b3d8f37c"],"state_sha256":"1a275679e83b053a4e08fe8b7dce933957fbf524d7a9b50ec4c496626335f583"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"T7Hfy4WEiOU992QYgwxc0aIWC5oIX6DnnEwgUV0Qf/OmoFRFm3cDZkjR/TtWzYM5L/X/NBi6l2MuS2bRfQI/CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T23:16:19.033973Z","bundle_sha256":"ae44f1ea46a7bc41ecaa99d22ee4500b3a4c540ca5ec3547e0992fa2be948de5"}}