{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:6LIMPVJ2NITT7CI6RTFQJFOBF4","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":"109af3c3b623aa7670a15a99819c63ad7b797eea85c8521d91455f5032ed9ff0","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-04-16T02:53:06Z","title_canon_sha256":"ea4f94d65205c79d0ab3e789f7e5d1abb984f93acd2c71868bb7bc6658de7fdc"},"schema_version":"1.0","source":{"id":"1804.05485","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.05485","created_at":"2026-05-17T23:53:31Z"},{"alias_kind":"arxiv_version","alias_value":"1804.05485v2","created_at":"2026-05-17T23:53:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.05485","created_at":"2026-05-17T23:53:31Z"},{"alias_kind":"pith_short_12","alias_value":"6LIMPVJ2NITT","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_16","alias_value":"6LIMPVJ2NITT7CI6","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_8","alias_value":"6LIMPVJ2","created_at":"2026-05-18T12:32:08Z"}],"graph_snapshots":[{"event_id":"sha256:3cc6354372568f235fea7670cb44e5d9d218a5b5601294080318c25863cff840","target":"graph","created_at":"2026-05-17T23:53:31Z","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"},"paper":{"abstract_excerpt":"We investigate the validity of screening mechanism of the fifth force for chameleon field in highly inhomogeneous density profile. For simplicity, we consider a static and spherically symmetric system which is composed of concentric infinitely thin shells. We calculate the fifth force profile by using a numerical method for a relatively large Compton wavelength of the chameleon field. An approximate solution is also derived for the small Compton wavelength limit. Our results show that, if the thin-shell condition for the corresponding smoothed density profile is satisfied, the fifth force is s","authors_text":"Chul-Moon Yoo, 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":"2018-04-16T02:53:06Z","title":"Chameleon Field in a Spherical Shell System"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.05485","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":"sha256:8fcc4c994a64cc99b8501c4a5ec620a7a9f594fb4bedb6df60c31ce70e31386c","target":"record","created_at":"2026-05-17T23:53:31Z","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":"109af3c3b623aa7670a15a99819c63ad7b797eea85c8521d91455f5032ed9ff0","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-04-16T02:53:06Z","title_canon_sha256":"ea4f94d65205c79d0ab3e789f7e5d1abb984f93acd2c71868bb7bc6658de7fdc"},"schema_version":"1.0","source":{"id":"1804.05485","kind":"arxiv","version":2}},"canonical_sha256":"f2d0c7d53a6a273f891e8ccb0495c12f2a454b6ad2d6319bc30506cde9e4a668","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f2d0c7d53a6a273f891e8ccb0495c12f2a454b6ad2d6319bc30506cde9e4a668","first_computed_at":"2026-05-17T23:53:31.259092Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:53:31.259092Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xFq4qt0iv6iy92ouJiTApWFIje6WUi5dHBEykzZRLT9gUa3xk6CDAS+Gs++yy6+G1Jntq9xoh33MGuxOOBS5DA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:53:31.259728Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.05485","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8fcc4c994a64cc99b8501c4a5ec620a7a9f594fb4bedb6df60c31ce70e31386c","sha256:3cc6354372568f235fea7670cb44e5d9d218a5b5601294080318c25863cff840"],"state_sha256":"605eead8b285c4ef86f4d26a8b684542dd773350bca4782ffe18dcf5b2409c8c"}