{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:VGSTYYV5UQ2VDRC3GTNTCXT2KL","short_pith_number":"pith:VGSTYYV5","canonical_record":{"source":{"id":"1105.6085","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-05-30T19:47:14Z","cross_cats_sorted":["gr-qc","hep-ph"],"title_canon_sha256":"d939b3396fa52a5e71d7cea16ebf8ed202eb65a5906ab72137a51641558987a0","abstract_canon_sha256":"d10eba7373623442242057ad1977551eaf20f65259928ab16e7073bf2d93ef93"},"schema_version":"1.0"},"canonical_sha256":"a9a53c62bda43551c45b34db315e7a52f18c54f621d3930e7be805dd0f3a9230","source":{"kind":"arxiv","id":"1105.6085","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1105.6085","created_at":"2026-05-18T03:54:39Z"},{"alias_kind":"arxiv_version","alias_value":"1105.6085v3","created_at":"2026-05-18T03:54:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.6085","created_at":"2026-05-18T03:54:39Z"},{"alias_kind":"pith_short_12","alias_value":"VGSTYYV5UQ2V","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_16","alias_value":"VGSTYYV5UQ2VDRC3","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_8","alias_value":"VGSTYYV5","created_at":"2026-05-18T12:26:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:VGSTYYV5UQ2VDRC3GTNTCXT2KL","target":"record","payload":{"canonical_record":{"source":{"id":"1105.6085","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-05-30T19:47:14Z","cross_cats_sorted":["gr-qc","hep-ph"],"title_canon_sha256":"d939b3396fa52a5e71d7cea16ebf8ed202eb65a5906ab72137a51641558987a0","abstract_canon_sha256":"d10eba7373623442242057ad1977551eaf20f65259928ab16e7073bf2d93ef93"},"schema_version":"1.0"},"canonical_sha256":"a9a53c62bda43551c45b34db315e7a52f18c54f621d3930e7be805dd0f3a9230","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:54:39.443865Z","signature_b64":"Mnty+mKOiCxJgJBravENnc6HYKxqy0y3C7MnLx9he/SJj+8N1/aCYkOVS6U1aYYvZi20yfA54ZLQiSQUf3NPBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a9a53c62bda43551c45b34db315e7a52f18c54f621d3930e7be805dd0f3a9230","last_reissued_at":"2026-05-18T03:54:39.443241Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:54:39.443241Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1105.6085","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:54:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WJxEEnX+racy2xc8hm8Ht4sKeXpnljeZ5x+h5KbW24Qd6jldgE2MHlNfJkd/ZlhTmKsh1yqBR6gZYKZX5uHWBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T22:59:33.852250Z"},"content_sha256":"4fa572e15534e2af53fa9d7e5ac0eac14225f1555076a8c0f684ca34dd3e8241","schema_version":"1.0","event_id":"sha256:4fa572e15534e2af53fa9d7e5ac0eac14225f1555076a8c0f684ca34dd3e8241"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:VGSTYYV5UQ2VDRC3GTNTCXT2KL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Detecting Chameleon Dark Energy via Electrostatic Analogy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc","hep-ph"],"primary_cat":"astro-ph.CO","authors_text":"Francesc Ferrer, Katherine Jones-Smith","submitted_at":"2011-05-30T19:47:14Z","abstract_excerpt":"The late-time accelerated expansion of the universe could be caused by a scalar field that is screened on small scales, as in chameleon or symmetron scenarios. We present an analogy between thin shell configurations of such scalar fields and electrostatics, which allows calculation of the field profile for general extended bodies. Interestingly, the field demonstrates a `lightning rod' effect, where it becomes enhanced near the ends of a pointy or elongated object. Drawing from this correspondence, we show that non-spherical test bodies immersed in a background field will experience a net torq"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.6085","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"2026-05-18T03:54:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RZjCa/1p1EU4iaMBeF8x7687ykl+vm1Hd3VqndSXqBDbQjouI86aSdNvtkYpeFaLAVIXfUfvr8WO2rvY00yLBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T22:59:33.852619Z"},"content_sha256":"920602445731da021ca5d80f0549965f07c6cdddf9d4e90aea3e3bbc70b02d16","schema_version":"1.0","event_id":"sha256:920602445731da021ca5d80f0549965f07c6cdddf9d4e90aea3e3bbc70b02d16"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VGSTYYV5UQ2VDRC3GTNTCXT2KL/bundle.json","state_url":"https://pith.science/pith/VGSTYYV5UQ2VDRC3GTNTCXT2KL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VGSTYYV5UQ2VDRC3GTNTCXT2KL/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":"2026-05-28T22:59:33Z","links":{"resolver":"https://pith.science/pith/VGSTYYV5UQ2VDRC3GTNTCXT2KL","bundle":"https://pith.science/pith/VGSTYYV5UQ2VDRC3GTNTCXT2KL/bundle.json","state":"https://pith.science/pith/VGSTYYV5UQ2VDRC3GTNTCXT2KL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VGSTYYV5UQ2VDRC3GTNTCXT2KL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:VGSTYYV5UQ2VDRC3GTNTCXT2KL","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":"d10eba7373623442242057ad1977551eaf20f65259928ab16e7073bf2d93ef93","cross_cats_sorted":["gr-qc","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-05-30T19:47:14Z","title_canon_sha256":"d939b3396fa52a5e71d7cea16ebf8ed202eb65a5906ab72137a51641558987a0"},"schema_version":"1.0","source":{"id":"1105.6085","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1105.6085","created_at":"2026-05-18T03:54:39Z"},{"alias_kind":"arxiv_version","alias_value":"1105.6085v3","created_at":"2026-05-18T03:54:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.6085","created_at":"2026-05-18T03:54:39Z"},{"alias_kind":"pith_short_12","alias_value":"VGSTYYV5UQ2V","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_16","alias_value":"VGSTYYV5UQ2VDRC3","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_8","alias_value":"VGSTYYV5","created_at":"2026-05-18T12:26:44Z"}],"graph_snapshots":[{"event_id":"sha256:920602445731da021ca5d80f0549965f07c6cdddf9d4e90aea3e3bbc70b02d16","target":"graph","created_at":"2026-05-18T03:54:39Z","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":"The late-time accelerated expansion of the universe could be caused by a scalar field that is screened on small scales, as in chameleon or symmetron scenarios. We present an analogy between thin shell configurations of such scalar fields and electrostatics, which allows calculation of the field profile for general extended bodies. Interestingly, the field demonstrates a `lightning rod' effect, where it becomes enhanced near the ends of a pointy or elongated object. Drawing from this correspondence, we show that non-spherical test bodies immersed in a background field will experience a net torq","authors_text":"Francesc Ferrer, Katherine Jones-Smith","cross_cats":["gr-qc","hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-05-30T19:47:14Z","title":"Detecting Chameleon Dark Energy via Electrostatic Analogy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.6085","kind":"arxiv","version":3},"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":"sha256:4fa572e15534e2af53fa9d7e5ac0eac14225f1555076a8c0f684ca34dd3e8241","target":"record","created_at":"2026-05-18T03:54:39Z","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":"d10eba7373623442242057ad1977551eaf20f65259928ab16e7073bf2d93ef93","cross_cats_sorted":["gr-qc","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-05-30T19:47:14Z","title_canon_sha256":"d939b3396fa52a5e71d7cea16ebf8ed202eb65a5906ab72137a51641558987a0"},"schema_version":"1.0","source":{"id":"1105.6085","kind":"arxiv","version":3}},"canonical_sha256":"a9a53c62bda43551c45b34db315e7a52f18c54f621d3930e7be805dd0f3a9230","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a9a53c62bda43551c45b34db315e7a52f18c54f621d3930e7be805dd0f3a9230","first_computed_at":"2026-05-18T03:54:39.443241Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:54:39.443241Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Mnty+mKOiCxJgJBravENnc6HYKxqy0y3C7MnLx9he/SJj+8N1/aCYkOVS6U1aYYvZi20yfA54ZLQiSQUf3NPBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:54:39.443865Z","signed_message":"canonical_sha256_bytes"},"source_id":"1105.6085","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4fa572e15534e2af53fa9d7e5ac0eac14225f1555076a8c0f684ca34dd3e8241","sha256:920602445731da021ca5d80f0549965f07c6cdddf9d4e90aea3e3bbc70b02d16"],"state_sha256":"7616fb1723c830a62d9f42819ac4e7dfea58108add7de354aede2cdd16206c58"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ge+YIkkC6wGs5hd8c72f00nAhaBmp207rHwyeR3x7DdEgCoSMR/cY80dHfIP7fd4sH0rULfWNFMdwx3uQrW+Dg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T22:59:33.854544Z","bundle_sha256":"0f2fedefcd6ca7e94e766ba6123c2f83e936a345dc02b21c5d0d153c0a9d16de"}}