{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2010:PWKFKZB7URYGHXD37X4AMSODZZ","short_pith_number":"pith:PWKFKZB7","schema_version":"1.0","canonical_sha256":"7d9455643fa47063dc7bfdf80649c3ce76b0f3bf93232b269da046e3e6ce5f76","source":{"kind":"arxiv","id":"1006.2796","version":1},"attestation_state":"computed","paper":{"title":"Chameleons with Field Dependent Couplings","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc","hep-th"],"primary_cat":"astro-ph.CO","authors_text":"Carsten van de Bruck, David F. Mota, Hans A. Winther, Nelson J. Nunes, Philippe Brax","submitted_at":"2010-06-14T18:45:20Z","abstract_excerpt":"Certain scalar-tensor theories exhibit the so-called chameleon mechanism, whereby observational signatures of scalar fields are hidden by a combination of self-interactions and interactions with ambient matter. Not all scalar-tensor theories exhibit such a chameleon mechanism, which has been originally found in models with inverse power run-away potentials and field independent couplings to matter. In this paper we investigate field-theories with field-dependent couplings and a power-law potential for the scalar field. We show that the theory indeed is a chameleon field theory. We find the thi"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1006.2796","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-06-14T18:45:20Z","cross_cats_sorted":["gr-qc","hep-th"],"title_canon_sha256":"10235d72178d53740e690ab441545dd3bb9c95d3720a03ece7122df68e7ec236","abstract_canon_sha256":"bc094910d9320b5759ee3aaafd3cbebb0cb39a18b0c0e3e45cdd55d21fc494c1"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:33:16.998258Z","signature_b64":"O1i7MxXN+9nvBjLRt7rVUtt6PHG5a/QrAPBG0weEGxeQI9Ashr0xF5mjn2IftUeHJIdsxSTrT/xg5qJWeQGeCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7d9455643fa47063dc7bfdf80649c3ce76b0f3bf93232b269da046e3e6ce5f76","last_reissued_at":"2026-05-18T02:33:16.997661Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:33:16.997661Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Chameleons with Field Dependent Couplings","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc","hep-th"],"primary_cat":"astro-ph.CO","authors_text":"Carsten van de Bruck, David F. Mota, Hans A. Winther, Nelson J. Nunes, Philippe Brax","submitted_at":"2010-06-14T18:45:20Z","abstract_excerpt":"Certain scalar-tensor theories exhibit the so-called chameleon mechanism, whereby observational signatures of scalar fields are hidden by a combination of self-interactions and interactions with ambient matter. Not all scalar-tensor theories exhibit such a chameleon mechanism, which has been originally found in models with inverse power run-away potentials and field independent couplings to matter. In this paper we investigate field-theories with field-dependent couplings and a power-law potential for the scalar field. We show that the theory indeed is a chameleon field theory. We find the thi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1006.2796","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":""},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1006.2796","created_at":"2026-05-18T02:33:16.997740+00:00"},{"alias_kind":"arxiv_version","alias_value":"1006.2796v1","created_at":"2026-05-18T02:33:16.997740+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1006.2796","created_at":"2026-05-18T02:33:16.997740+00:00"},{"alias_kind":"pith_short_12","alias_value":"PWKFKZB7URYG","created_at":"2026-05-18T12:26:12.377268+00:00"},{"alias_kind":"pith_short_16","alias_value":"PWKFKZB7URYGHXD3","created_at":"2026-05-18T12:26:12.377268+00:00"},{"alias_kind":"pith_short_8","alias_value":"PWKFKZB7","created_at":"2026-05-18T12:26:12.377268+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":2,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2103.01183","citing_title":"In the Realm of the Hubble tension $-$ a Review of Solutions","ref_index":257,"is_internal_anchor":true},{"citing_arxiv_id":"1106.2476","citing_title":"Modified Gravity and Cosmology","ref_index":198,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/PWKFKZB7URYGHXD37X4AMSODZZ","json":"https://pith.science/pith/PWKFKZB7URYGHXD37X4AMSODZZ.json","graph_json":"https://pith.science/api/pith-number/PWKFKZB7URYGHXD37X4AMSODZZ/graph.json","events_json":"https://pith.science/api/pith-number/PWKFKZB7URYGHXD37X4AMSODZZ/events.json","paper":"https://pith.science/paper/PWKFKZB7"},"agent_actions":{"view_html":"https://pith.science/pith/PWKFKZB7URYGHXD37X4AMSODZZ","download_json":"https://pith.science/pith/PWKFKZB7URYGHXD37X4AMSODZZ.json","view_paper":"https://pith.science/paper/PWKFKZB7","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1006.2796&json=true","fetch_graph":"https://pith.science/api/pith-number/PWKFKZB7URYGHXD37X4AMSODZZ/graph.json","fetch_events":"https://pith.science/api/pith-number/PWKFKZB7URYGHXD37X4AMSODZZ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/PWKFKZB7URYGHXD37X4AMSODZZ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/PWKFKZB7URYGHXD37X4AMSODZZ/action/storage_attestation","attest_author":"https://pith.science/pith/PWKFKZB7URYGHXD37X4AMSODZZ/action/author_attestation","sign_citation":"https://pith.science/pith/PWKFKZB7URYGHXD37X4AMSODZZ/action/citation_signature","submit_replication":"https://pith.science/pith/PWKFKZB7URYGHXD37X4AMSODZZ/action/replication_record"}},"created_at":"2026-05-18T02:33:16.997740+00:00","updated_at":"2026-05-18T02:33:16.997740+00:00"}