{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:NLAELPX4V4QCWBC7GYJAFQSZMN","short_pith_number":"pith:NLAELPX4","canonical_record":{"source":{"id":"2010.14329","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-10-27T14:41:29Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"51aed2030a85ef84fec7ae1890bce3b7f809080e013762c27e84213aa0e80e73","abstract_canon_sha256":"7db57e33e370de3a6fbff792d95fb02722e50eaea4581b905066916445645532"},"schema_version":"1.0"},"canonical_sha256":"6ac045befcaf202b045f361202c25963642e0b48265b4b3741916d8855d7cfa1","source":{"kind":"arxiv","id":"2010.14329","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2010.14329","created_at":"2026-07-05T02:05:44Z"},{"alias_kind":"arxiv_version","alias_value":"2010.14329v2","created_at":"2026-07-05T02:05:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2010.14329","created_at":"2026-07-05T02:05:44Z"},{"alias_kind":"pith_short_12","alias_value":"NLAELPX4V4QC","created_at":"2026-07-05T02:05:44Z"},{"alias_kind":"pith_short_16","alias_value":"NLAELPX4V4QCWBC7","created_at":"2026-07-05T02:05:44Z"},{"alias_kind":"pith_short_8","alias_value":"NLAELPX4","created_at":"2026-07-05T02:05:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:NLAELPX4V4QCWBC7GYJAFQSZMN","target":"record","payload":{"canonical_record":{"source":{"id":"2010.14329","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-10-27T14:41:29Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"51aed2030a85ef84fec7ae1890bce3b7f809080e013762c27e84213aa0e80e73","abstract_canon_sha256":"7db57e33e370de3a6fbff792d95fb02722e50eaea4581b905066916445645532"},"schema_version":"1.0"},"canonical_sha256":"6ac045befcaf202b045f361202c25963642e0b48265b4b3741916d8855d7cfa1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:05:44.696091Z","signature_b64":"blkHPwny8jCLi7yrByJ1AeAQAHlwNd2XEKy980hHN6n2d6tyDBUKXhju+3fL/iGU/4msRKpFQV0OZYTq0j7yCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6ac045befcaf202b045f361202c25963642e0b48265b4b3741916d8855d7cfa1","last_reissued_at":"2026-07-05T02:05:44.695735Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:05:44.695735Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2010.14329","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T02:05:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"x3Ow5ZxjkHX55TqNxUhp43pspbEaKJ8rtyfDm4FQQ9UWdzhRwqvoaKZt5niMgTuRbJrAkqupQyHEU0ZKtZ4wBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T01:22:56.505502Z"},"content_sha256":"c4b8519b694320de0ce2fbb5246b112427059deeff6d84e87a3c3e9a0782e06e","schema_version":"1.0","event_id":"sha256:c4b8519b694320de0ce2fbb5246b112427059deeff6d84e87a3c3e9a0782e06e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:NLAELPX4V4QCWBC7GYJAFQSZMN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Dynamical Analysis of Screening in Scalar-Tensor Theory","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"gr-qc","authors_text":"Chul-Moon Yoo, Norihiro Tanahashi, Ryo Saito, Taishi Ikeda, Tomohiro Nakamura","submitted_at":"2020-10-27T14:41:29Z","abstract_excerpt":"We investigate linear and non-linear dynamics of spherically symmetric perturbations on a static configuration in scalar-tensor theories focusing on the chameleon screening mechanism. We particularly address two questions: how much the perturbations can source the fifth force when the static background is well screened, and whether the resultant fifth force can change the stability and structure of the background configuration. For linear perturbations, we derive a lower bound for the square of the Fourier mode frequency $\\omega^2$ using the adiabatic approximation. There may be unstable modes"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2010.14329","kind":"arxiv","version":2},"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/2010.14329/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":"2026-07-05T02:05:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MBUtj+jPyjdJYkNqPr2wxqizG8SbE4RISf9Ffnq7+SPKM8iSwshBvKJ253Rtoax+fz4GtqPU44LcfdV18t/QCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T01:22:56.506009Z"},"content_sha256":"55df127f6c9dc0620d64f965fd9a3399a3a34c418b8d87b26eb10d06abab9b4a","schema_version":"1.0","event_id":"sha256:55df127f6c9dc0620d64f965fd9a3399a3a34c418b8d87b26eb10d06abab9b4a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NLAELPX4V4QCWBC7GYJAFQSZMN/bundle.json","state_url":"https://pith.science/pith/NLAELPX4V4QCWBC7GYJAFQSZMN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NLAELPX4V4QCWBC7GYJAFQSZMN/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":"2026-08-06T01:22:56Z","links":{"resolver":"https://pith.science/pith/NLAELPX4V4QCWBC7GYJAFQSZMN","bundle":"https://pith.science/pith/NLAELPX4V4QCWBC7GYJAFQSZMN/bundle.json","state":"https://pith.science/pith/NLAELPX4V4QCWBC7GYJAFQSZMN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NLAELPX4V4QCWBC7GYJAFQSZMN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:NLAELPX4V4QCWBC7GYJAFQSZMN","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":"7db57e33e370de3a6fbff792d95fb02722e50eaea4581b905066916445645532","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-10-27T14:41:29Z","title_canon_sha256":"51aed2030a85ef84fec7ae1890bce3b7f809080e013762c27e84213aa0e80e73"},"schema_version":"1.0","source":{"id":"2010.14329","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2010.14329","created_at":"2026-07-05T02:05:44Z"},{"alias_kind":"arxiv_version","alias_value":"2010.14329v2","created_at":"2026-07-05T02:05:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2010.14329","created_at":"2026-07-05T02:05:44Z"},{"alias_kind":"pith_short_12","alias_value":"NLAELPX4V4QC","created_at":"2026-07-05T02:05:44Z"},{"alias_kind":"pith_short_16","alias_value":"NLAELPX4V4QCWBC7","created_at":"2026-07-05T02:05:44Z"},{"alias_kind":"pith_short_8","alias_value":"NLAELPX4","created_at":"2026-07-05T02:05:44Z"}],"graph_snapshots":[{"event_id":"sha256:55df127f6c9dc0620d64f965fd9a3399a3a34c418b8d87b26eb10d06abab9b4a","target":"graph","created_at":"2026-07-05T02:05:44Z","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/2010.14329/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We investigate linear and non-linear dynamics of spherically symmetric perturbations on a static configuration in scalar-tensor theories focusing on the chameleon screening mechanism. We particularly address two questions: how much the perturbations can source the fifth force when the static background is well screened, and whether the resultant fifth force can change the stability and structure of the background configuration. For linear perturbations, we derive a lower bound for the square of the Fourier mode frequency $\\omega^2$ using the adiabatic approximation. There may be unstable modes","authors_text":"Chul-Moon Yoo, Norihiro Tanahashi, Ryo Saito, Taishi Ikeda, Tomohiro Nakamura","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-10-27T14:41:29Z","title":"Dynamical Analysis of Screening in Scalar-Tensor Theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2010.14329","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:c4b8519b694320de0ce2fbb5246b112427059deeff6d84e87a3c3e9a0782e06e","target":"record","created_at":"2026-07-05T02:05:44Z","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":"7db57e33e370de3a6fbff792d95fb02722e50eaea4581b905066916445645532","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-10-27T14:41:29Z","title_canon_sha256":"51aed2030a85ef84fec7ae1890bce3b7f809080e013762c27e84213aa0e80e73"},"schema_version":"1.0","source":{"id":"2010.14329","kind":"arxiv","version":2}},"canonical_sha256":"6ac045befcaf202b045f361202c25963642e0b48265b4b3741916d8855d7cfa1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6ac045befcaf202b045f361202c25963642e0b48265b4b3741916d8855d7cfa1","first_computed_at":"2026-07-05T02:05:44.695735Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:05:44.695735Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"blkHPwny8jCLi7yrByJ1AeAQAHlwNd2XEKy980hHN6n2d6tyDBUKXhju+3fL/iGU/4msRKpFQV0OZYTq0j7yCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T02:05:44.696091Z","signed_message":"canonical_sha256_bytes"},"source_id":"2010.14329","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c4b8519b694320de0ce2fbb5246b112427059deeff6d84e87a3c3e9a0782e06e","sha256:55df127f6c9dc0620d64f965fd9a3399a3a34c418b8d87b26eb10d06abab9b4a"],"state_sha256":"6b88fc798f682d0aea4d62df65926679da4103548c5445da56b581d523b79744"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"H8TtMwWuDioraStq+wfliOd+HhN2SgaJmGCuJm5F6PIEeVT/OEmE20hAAP8x4UyCQpbYwlTOhbToS7XY62b5DA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T01:22:56.511153Z","bundle_sha256":"dd9300365cb9fb6cc0737a7a103ed2f3633e3494ce76f19e1ce281c2a02c698d"}}