{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:6JB6DDZU6JBJ4V5JYNBP5TSKO2","short_pith_number":"pith:6JB6DDZU","schema_version":"1.0","canonical_sha256":"f243e18f34f2429e57a9c342fece4a76bdab9aa71143c955847c75b8c481e2a1","source":{"kind":"arxiv","id":"1708.01482","version":1},"attestation_state":"computed","paper":{"title":"Short-range test of the universality of gravitational constant $G$ at the millimeter scale using a digital image sensor","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"H. Kawamura, H. Murakami, H. Nishio, J. Murata, J. Onishi, K. Ninomiya, K. Watanabe, M. Hata, M. Hatori, N. Ogawa, R. Kishi, R. Tanuma, R. Tsutsui, S. Inaba, S. Saiba, S. Tanaka, T. Akiyama, T. Iguri, T. Sakuta, Y. Ikeda, Y. Nakaya, Y. Totsuka","submitted_at":"2017-08-04T13:12:26Z","abstract_excerpt":"The composition dependence of gravitational constant $G$ is measured at the millimeter scale to test the weak equivalence principle, which may be violated at short range through new Yukawa interactions such as the dilaton exchange force. A torsion balance on a turning table with two identical tungsten targets surrounded by two different attractor materials (copper and aluminum) is used to measure gravitational torque by means of digital measurements of a position sensor. Values of the ratios $\\tilde{G}_{Al-W}/\\tilde{G}_{Cu-W} -1$ and $\\tilde{G}_{Cu-W}/G_{N} -1$ were $(0.9 \\pm 1.1_{\\mathrm{sta}"},"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":"1708.01482","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2017-08-04T13:12:26Z","cross_cats_sorted":[],"title_canon_sha256":"f1a5404d74bfa21537298b8edee7a79c1ce5f379b175381d714e5380f515a346","abstract_canon_sha256":"f2830806e0c2cae2dcfeb4d29dbaf184ea8a651d4747c288d837ebdddbfbba71"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:36:47.230140Z","signature_b64":"lfIvye9zE3jjMAsqFxsydgFcNWw4RybaAFEGETWAjdMEgIGFtA9OGanTUQwpW1Jhzryg+CzMLohxKcF8X481Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f243e18f34f2429e57a9c342fece4a76bdab9aa71143c955847c75b8c481e2a1","last_reissued_at":"2026-05-18T00:36:47.229514Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:36:47.229514Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Short-range test of the universality of gravitational constant $G$ at the millimeter scale using a digital image sensor","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"H. Kawamura, H. Murakami, H. Nishio, J. Murata, J. Onishi, K. Ninomiya, K. Watanabe, M. Hata, M. Hatori, N. Ogawa, R. Kishi, R. Tanuma, R. Tsutsui, S. Inaba, S. Saiba, S. Tanaka, T. Akiyama, T. Iguri, T. Sakuta, Y. Ikeda, Y. Nakaya, Y. Totsuka","submitted_at":"2017-08-04T13:12:26Z","abstract_excerpt":"The composition dependence of gravitational constant $G$ is measured at the millimeter scale to test the weak equivalence principle, which may be violated at short range through new Yukawa interactions such as the dilaton exchange force. A torsion balance on a turning table with two identical tungsten targets surrounded by two different attractor materials (copper and aluminum) is used to measure gravitational torque by means of digital measurements of a position sensor. Values of the ratios $\\tilde{G}_{Al-W}/\\tilde{G}_{Cu-W} -1$ and $\\tilde{G}_{Cu-W}/G_{N} -1$ were $(0.9 \\pm 1.1_{\\mathrm{sta}"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.01482","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":"1708.01482","created_at":"2026-05-18T00:36:47.229603+00:00"},{"alias_kind":"arxiv_version","alias_value":"1708.01482v1","created_at":"2026-05-18T00:36:47.229603+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.01482","created_at":"2026-05-18T00:36:47.229603+00:00"},{"alias_kind":"pith_short_12","alias_value":"6JB6DDZU6JBJ","created_at":"2026-05-18T12:31:03.183658+00:00"},{"alias_kind":"pith_short_16","alias_value":"6JB6DDZU6JBJ4V5J","created_at":"2026-05-18T12:31:03.183658+00:00"},{"alias_kind":"pith_short_8","alias_value":"6JB6DDZU","created_at":"2026-05-18T12:31:03.183658+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/6JB6DDZU6JBJ4V5JYNBP5TSKO2","json":"https://pith.science/pith/6JB6DDZU6JBJ4V5JYNBP5TSKO2.json","graph_json":"https://pith.science/api/pith-number/6JB6DDZU6JBJ4V5JYNBP5TSKO2/graph.json","events_json":"https://pith.science/api/pith-number/6JB6DDZU6JBJ4V5JYNBP5TSKO2/events.json","paper":"https://pith.science/paper/6JB6DDZU"},"agent_actions":{"view_html":"https://pith.science/pith/6JB6DDZU6JBJ4V5JYNBP5TSKO2","download_json":"https://pith.science/pith/6JB6DDZU6JBJ4V5JYNBP5TSKO2.json","view_paper":"https://pith.science/paper/6JB6DDZU","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1708.01482&json=true","fetch_graph":"https://pith.science/api/pith-number/6JB6DDZU6JBJ4V5JYNBP5TSKO2/graph.json","fetch_events":"https://pith.science/api/pith-number/6JB6DDZU6JBJ4V5JYNBP5TSKO2/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/6JB6DDZU6JBJ4V5JYNBP5TSKO2/action/timestamp_anchor","attest_storage":"https://pith.science/pith/6JB6DDZU6JBJ4V5JYNBP5TSKO2/action/storage_attestation","attest_author":"https://pith.science/pith/6JB6DDZU6JBJ4V5JYNBP5TSKO2/action/author_attestation","sign_citation":"https://pith.science/pith/6JB6DDZU6JBJ4V5JYNBP5TSKO2/action/citation_signature","submit_replication":"https://pith.science/pith/6JB6DDZU6JBJ4V5JYNBP5TSKO2/action/replication_record"}},"created_at":"2026-05-18T00:36:47.229603+00:00","updated_at":"2026-05-18T00:36:47.229603+00:00"}