{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2010:QPDS55DWE5WAHVUWAUWGXJTIHG","short_pith_number":"pith:QPDS55DW","schema_version":"1.0","canonical_sha256":"83c72ef476276c03d696052c6ba66839a134bddfbb3b2723b0a353d3b709c694","source":{"kind":"arxiv","id":"1004.2066","version":1},"attestation_state":"computed","paper":{"title":"Let's talk about varying G","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Adam Moss, Ali Narimani, Douglas Scott","submitted_at":"2010-04-12T21:41:03Z","abstract_excerpt":"It is possible that fundamental constants may not be constant at all.  There is a generally accepted view that one can only talk about variations of dimensionless quantities, such as the fine structure constant $\\alpha_{\\rm e}\\equiv e^2/4\\pi\\epsilon_0\\hbar c$.  However, constraints on the strength of gravity tend to focus on G itself, which is problematic. We stress that G needs to be multiplied by the square of a mass, and hence, for example, one should be constraining $\\alpha_{\\rm g}\\equiv G m_{\\rm p}^2/\\hbar c$, where $m_{\\rm p}$ is the proton mass.  Failure to focus on such dimensionless q"},"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":"1004.2066","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-04-12T21:41:03Z","cross_cats_sorted":[],"title_canon_sha256":"eeb02f70dbf2ba719943ae201ac21d1057d3b014b99f5e716b9736aa3a0f0374","abstract_canon_sha256":"8e2dc42e5883c20cb8ca58fdb435461e28698232860a7f9bb132f1f826ac840f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:30:48.582524Z","signature_b64":"b3s23+kVGuM0RkG4qXv2CZRvVMKHHfH9foFzd6vrZAz4BOt9ZRUov3AMjHX0LVUU2RfQHW37LvxV0UiMpINyAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"83c72ef476276c03d696052c6ba66839a134bddfbb3b2723b0a353d3b709c694","last_reissued_at":"2026-05-18T04:30:48.582072Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:30:48.582072Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Let's talk about varying G","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Adam Moss, Ali Narimani, Douglas Scott","submitted_at":"2010-04-12T21:41:03Z","abstract_excerpt":"It is possible that fundamental constants may not be constant at all.  There is a generally accepted view that one can only talk about variations of dimensionless quantities, such as the fine structure constant $\\alpha_{\\rm e}\\equiv e^2/4\\pi\\epsilon_0\\hbar c$.  However, constraints on the strength of gravity tend to focus on G itself, which is problematic. We stress that G needs to be multiplied by the square of a mass, and hence, for example, one should be constraining $\\alpha_{\\rm g}\\equiv G m_{\\rm p}^2/\\hbar c$, where $m_{\\rm p}$ is the proton mass.  Failure to focus on such dimensionless q"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1004.2066","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":"1004.2066","created_at":"2026-05-18T04:30:48.582139+00:00"},{"alias_kind":"arxiv_version","alias_value":"1004.2066v1","created_at":"2026-05-18T04:30:48.582139+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1004.2066","created_at":"2026-05-18T04:30:48.582139+00:00"},{"alias_kind":"pith_short_12","alias_value":"QPDS55DWE5WA","created_at":"2026-05-18T12:26:12.377268+00:00"},{"alias_kind":"pith_short_16","alias_value":"QPDS55DWE5WAHVUW","created_at":"2026-05-18T12:26:12.377268+00:00"},{"alias_kind":"pith_short_8","alias_value":"QPDS55DW","created_at":"2026-05-18T12:26:12.377268+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/QPDS55DWE5WAHVUWAUWGXJTIHG","json":"https://pith.science/pith/QPDS55DWE5WAHVUWAUWGXJTIHG.json","graph_json":"https://pith.science/api/pith-number/QPDS55DWE5WAHVUWAUWGXJTIHG/graph.json","events_json":"https://pith.science/api/pith-number/QPDS55DWE5WAHVUWAUWGXJTIHG/events.json","paper":"https://pith.science/paper/QPDS55DW"},"agent_actions":{"view_html":"https://pith.science/pith/QPDS55DWE5WAHVUWAUWGXJTIHG","download_json":"https://pith.science/pith/QPDS55DWE5WAHVUWAUWGXJTIHG.json","view_paper":"https://pith.science/paper/QPDS55DW","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1004.2066&json=true","fetch_graph":"https://pith.science/api/pith-number/QPDS55DWE5WAHVUWAUWGXJTIHG/graph.json","fetch_events":"https://pith.science/api/pith-number/QPDS55DWE5WAHVUWAUWGXJTIHG/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/QPDS55DWE5WAHVUWAUWGXJTIHG/action/timestamp_anchor","attest_storage":"https://pith.science/pith/QPDS55DWE5WAHVUWAUWGXJTIHG/action/storage_attestation","attest_author":"https://pith.science/pith/QPDS55DWE5WAHVUWAUWGXJTIHG/action/author_attestation","sign_citation":"https://pith.science/pith/QPDS55DWE5WAHVUWAUWGXJTIHG/action/citation_signature","submit_replication":"https://pith.science/pith/QPDS55DWE5WAHVUWAUWGXJTIHG/action/replication_record"}},"created_at":"2026-05-18T04:30:48.582139+00:00","updated_at":"2026-05-18T04:30:48.582139+00:00"}