{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:QG5BVGKPHEFE4XYXDPASWTHTLI","short_pith_number":"pith:QG5BVGKP","canonical_record":{"source":{"id":"2211.07840","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2022-11-15T01:45:44Z","cross_cats_sorted":["astro-ph.CO","hep-ph"],"title_canon_sha256":"d7f2b9cd82cffe579f16e0b25e425899f26203868911e5f5f1c02ed693d47edd","abstract_canon_sha256":"1f48559130b280191cffdb41c08e1fdd679b839f36f2268d1173fec89be80ba5"},"schema_version":"1.0"},"canonical_sha256":"81ba1a994f390a4e5f171bc12b4cf35a35b377125298285ff65f56690aa840da","source":{"kind":"arxiv","id":"2211.07840","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2211.07840","created_at":"2026-07-05T06:04:02Z"},{"alias_kind":"arxiv_version","alias_value":"2211.07840v1","created_at":"2026-07-05T06:04:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2211.07840","created_at":"2026-07-05T06:04:02Z"},{"alias_kind":"pith_short_12","alias_value":"QG5BVGKPHEFE","created_at":"2026-07-05T06:04:02Z"},{"alias_kind":"pith_short_16","alias_value":"QG5BVGKPHEFE4XYX","created_at":"2026-07-05T06:04:02Z"},{"alias_kind":"pith_short_8","alias_value":"QG5BVGKP","created_at":"2026-07-05T06:04:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:QG5BVGKPHEFE4XYXDPASWTHTLI","target":"record","payload":{"canonical_record":{"source":{"id":"2211.07840","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2022-11-15T01:45:44Z","cross_cats_sorted":["astro-ph.CO","hep-ph"],"title_canon_sha256":"d7f2b9cd82cffe579f16e0b25e425899f26203868911e5f5f1c02ed693d47edd","abstract_canon_sha256":"1f48559130b280191cffdb41c08e1fdd679b839f36f2268d1173fec89be80ba5"},"schema_version":"1.0"},"canonical_sha256":"81ba1a994f390a4e5f171bc12b4cf35a35b377125298285ff65f56690aa840da","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:04:02.103061Z","signature_b64":"mnuLzu+uIyH6x2OmuoKZRU/LNdfMay2zBqyhbuzrPpBBhiPeyzXHmhYFMaq/v+7HaA3Ijsgtcx5gIwX0vUG/Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"81ba1a994f390a4e5f171bc12b4cf35a35b377125298285ff65f56690aa840da","last_reissued_at":"2026-07-05T06:04:02.102577Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:04:02.102577Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2211.07840","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":"2026-07-05T06:04:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vKNbVy4yfn0vAdgtrUb6vSqGkKQIDtsxjM+n6op8/Wa0dr+tUwfhaXtRbUE0yaxXDfNFkJMwH9BBcM3i8mH4Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T03:24:08.665569Z"},"content_sha256":"f3d347c6260214a06d6989c8422033d33b32971b20e30961e83c240632a26954","schema_version":"1.0","event_id":"sha256:f3d347c6260214a06d6989c8422033d33b32971b20e30961e83c240632a26954"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:QG5BVGKPHEFE4XYXDPASWTHTLI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Casimir Tests of Scalar-Tensor Theories","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","hep-ph"],"primary_cat":"gr-qc","authors_text":"Anne-Christine Davis, Benjamin Elder, Philippe Brax","submitted_at":"2022-11-15T01:45:44Z","abstract_excerpt":"We compute bounds and forecasts on screened modified gravity theories, specialising to the chameleon model in Casimir force experiments. In particular, we investigate the classical interaction between a plate and sphere subject to a screened interaction of the chameleon type. We compare numerical simulations of the field profile and the classical pressure exerted on the sphere to analytical approximations for these non-linear field theories. In particular, we focus on the proximity force approximation (PFA) and show that, within the range of sphere sizes $R$ and plate-sphere distance $D$ simul"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2211.07840","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/2211.07840/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":"2026-07-05T06:04:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4CMaw6bKemGx2uo3ALP1Z/9JmA6Zjy/VGq0jkV6VsBeZ4yG6pT/wcf1fY4QitRNbFLhbU5+iytUg35PWKB/1Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T03:24:08.666092Z"},"content_sha256":"9f118d7cc3a6b2e2f2a87fd0bed8277b8a3cd494d5f9bbbb059e73019ae58287","schema_version":"1.0","event_id":"sha256:9f118d7cc3a6b2e2f2a87fd0bed8277b8a3cd494d5f9bbbb059e73019ae58287"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QG5BVGKPHEFE4XYXDPASWTHTLI/bundle.json","state_url":"https://pith.science/pith/QG5BVGKPHEFE4XYXDPASWTHTLI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QG5BVGKPHEFE4XYXDPASWTHTLI/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":"2026-08-07T03:24:08Z","links":{"resolver":"https://pith.science/pith/QG5BVGKPHEFE4XYXDPASWTHTLI","bundle":"https://pith.science/pith/QG5BVGKPHEFE4XYXDPASWTHTLI/bundle.json","state":"https://pith.science/pith/QG5BVGKPHEFE4XYXDPASWTHTLI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QG5BVGKPHEFE4XYXDPASWTHTLI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:QG5BVGKPHEFE4XYXDPASWTHTLI","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":"1f48559130b280191cffdb41c08e1fdd679b839f36f2268d1173fec89be80ba5","cross_cats_sorted":["astro-ph.CO","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2022-11-15T01:45:44Z","title_canon_sha256":"d7f2b9cd82cffe579f16e0b25e425899f26203868911e5f5f1c02ed693d47edd"},"schema_version":"1.0","source":{"id":"2211.07840","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2211.07840","created_at":"2026-07-05T06:04:02Z"},{"alias_kind":"arxiv_version","alias_value":"2211.07840v1","created_at":"2026-07-05T06:04:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2211.07840","created_at":"2026-07-05T06:04:02Z"},{"alias_kind":"pith_short_12","alias_value":"QG5BVGKPHEFE","created_at":"2026-07-05T06:04:02Z"},{"alias_kind":"pith_short_16","alias_value":"QG5BVGKPHEFE4XYX","created_at":"2026-07-05T06:04:02Z"},{"alias_kind":"pith_short_8","alias_value":"QG5BVGKP","created_at":"2026-07-05T06:04:02Z"}],"graph_snapshots":[{"event_id":"sha256:9f118d7cc3a6b2e2f2a87fd0bed8277b8a3cd494d5f9bbbb059e73019ae58287","target":"graph","created_at":"2026-07-05T06:04:02Z","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/2211.07840/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We compute bounds and forecasts on screened modified gravity theories, specialising to the chameleon model in Casimir force experiments. In particular, we investigate the classical interaction between a plate and sphere subject to a screened interaction of the chameleon type. We compare numerical simulations of the field profile and the classical pressure exerted on the sphere to analytical approximations for these non-linear field theories. In particular, we focus on the proximity force approximation (PFA) and show that, within the range of sphere sizes $R$ and plate-sphere distance $D$ simul","authors_text":"Anne-Christine Davis, Benjamin Elder, Philippe Brax","cross_cats":["astro-ph.CO","hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2022-11-15T01:45:44Z","title":"Casimir Tests of Scalar-Tensor Theories"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2211.07840","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:f3d347c6260214a06d6989c8422033d33b32971b20e30961e83c240632a26954","target":"record","created_at":"2026-07-05T06:04:02Z","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":"1f48559130b280191cffdb41c08e1fdd679b839f36f2268d1173fec89be80ba5","cross_cats_sorted":["astro-ph.CO","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2022-11-15T01:45:44Z","title_canon_sha256":"d7f2b9cd82cffe579f16e0b25e425899f26203868911e5f5f1c02ed693d47edd"},"schema_version":"1.0","source":{"id":"2211.07840","kind":"arxiv","version":1}},"canonical_sha256":"81ba1a994f390a4e5f171bc12b4cf35a35b377125298285ff65f56690aa840da","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"81ba1a994f390a4e5f171bc12b4cf35a35b377125298285ff65f56690aa840da","first_computed_at":"2026-07-05T06:04:02.102577Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:04:02.102577Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mnuLzu+uIyH6x2OmuoKZRU/LNdfMay2zBqyhbuzrPpBBhiPeyzXHmhYFMaq/v+7HaA3Ijsgtcx5gIwX0vUG/Aw==","signature_status":"signed_v1","signed_at":"2026-07-05T06:04:02.103061Z","signed_message":"canonical_sha256_bytes"},"source_id":"2211.07840","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f3d347c6260214a06d6989c8422033d33b32971b20e30961e83c240632a26954","sha256:9f118d7cc3a6b2e2f2a87fd0bed8277b8a3cd494d5f9bbbb059e73019ae58287"],"state_sha256":"e3c29937e77bd2f370cfc231fd353910905268d9d0ca851ab625f4a8834c0a9a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XVweCV/FJcq9T9dAhWc6+ADq0/6dV88t0xrBNuiFMaiYKup/rSDCyrVdJlBpZrC+cveC5yNtXbqGRrb+JzJBDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T03:24:08.676493Z","bundle_sha256":"51cc9751976cbcc3f8c571780562f2eb5e01ac07d33c84e6cc86c4fdc73f409e"}}