{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:7QAW2QGBZDT445UCRL5XA4R73C","short_pith_number":"pith:7QAW2QGB","schema_version":"1.0","canonical_sha256":"fc016d40c1c8e7ce76828afb70723fd896264720e6860c6fa5c097feb74a9bec","source":{"kind":"arxiv","id":"1608.01960","version":3},"attestation_state":"computed","paper":{"title":"Observational Constraints on $f(T)$ gravity from varying fundamental constants","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","hep-th"],"primary_cat":"gr-qc","authors_text":"Alexander Bonilla, Emmanuel N. Saridakis, Rafael C. Nunes, Supriya Pan","submitted_at":"2016-08-05T18:07:27Z","abstract_excerpt":"We use observations related to the variation of fundamental constants, in order to impose constraints on the viable and most used $f(T)$ gravity models. In particular, for the fine-structure constant we use direct measurements obtained by different spectrographic methods, while for the effective Newton's constant we use a model-dependent reconstruction, using direct observational Hubble parameter data, in order to investigate its temporal evolution. We consider two $f(T)$ models and we quantify their deviation from $\\Lambda$CDM cosmology through a sole parameter. Our analysis reveals that this"},"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":"1608.01960","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2016-08-05T18:07:27Z","cross_cats_sorted":["astro-ph.CO","hep-th"],"title_canon_sha256":"6b457b93509490577a8f2f6baa7f9d644989d804dc8e6e68f3503abaa8c4a8a4","abstract_canon_sha256":"21ccb19cfa0295e1f743f3c7042ec55de8cf284d0fde62671a6fc22c4b4487c7"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:46:20.848784Z","signature_b64":"KMQAsntAXwCi0K5qMJyvFc7TK83RIslsxqwgjdNShEjcttJyyooKB8Pmeev04H6npYb47rWfQoKQPpQHiaSGAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fc016d40c1c8e7ce76828afb70723fd896264720e6860c6fa5c097feb74a9bec","last_reissued_at":"2026-05-18T00:46:20.848391Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:46:20.848391Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Observational Constraints on $f(T)$ gravity from varying fundamental constants","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","hep-th"],"primary_cat":"gr-qc","authors_text":"Alexander Bonilla, Emmanuel N. Saridakis, Rafael C. Nunes, Supriya Pan","submitted_at":"2016-08-05T18:07:27Z","abstract_excerpt":"We use observations related to the variation of fundamental constants, in order to impose constraints on the viable and most used $f(T)$ gravity models. In particular, for the fine-structure constant we use direct measurements obtained by different spectrographic methods, while for the effective Newton's constant we use a model-dependent reconstruction, using direct observational Hubble parameter data, in order to investigate its temporal evolution. We consider two $f(T)$ models and we quantify their deviation from $\\Lambda$CDM cosmology through a sole parameter. Our analysis reveals that this"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1608.01960","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1608.01960","created_at":"2026-05-18T00:46:20.848460+00:00"},{"alias_kind":"arxiv_version","alias_value":"1608.01960v3","created_at":"2026-05-18T00:46:20.848460+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1608.01960","created_at":"2026-05-18T00:46:20.848460+00:00"},{"alias_kind":"pith_short_12","alias_value":"7QAW2QGBZDT4","created_at":"2026-05-18T12:30:04.600751+00:00"},{"alias_kind":"pith_short_16","alias_value":"7QAW2QGBZDT445UC","created_at":"2026-05-18T12:30:04.600751+00:00"},{"alias_kind":"pith_short_8","alias_value":"7QAW2QGB","created_at":"2026-05-18T12:30:04.600751+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2203.06142","citing_title":"Cosmology Intertwined: A Review of the Particle Physics, Astrophysics, and Cosmology Associated with the Cosmological Tensions and Anomalies","ref_index":184,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/7QAW2QGBZDT445UCRL5XA4R73C","json":"https://pith.science/pith/7QAW2QGBZDT445UCRL5XA4R73C.json","graph_json":"https://pith.science/api/pith-number/7QAW2QGBZDT445UCRL5XA4R73C/graph.json","events_json":"https://pith.science/api/pith-number/7QAW2QGBZDT445UCRL5XA4R73C/events.json","paper":"https://pith.science/paper/7QAW2QGB"},"agent_actions":{"view_html":"https://pith.science/pith/7QAW2QGBZDT445UCRL5XA4R73C","download_json":"https://pith.science/pith/7QAW2QGBZDT445UCRL5XA4R73C.json","view_paper":"https://pith.science/paper/7QAW2QGB","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1608.01960&json=true","fetch_graph":"https://pith.science/api/pith-number/7QAW2QGBZDT445UCRL5XA4R73C/graph.json","fetch_events":"https://pith.science/api/pith-number/7QAW2QGBZDT445UCRL5XA4R73C/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/7QAW2QGBZDT445UCRL5XA4R73C/action/timestamp_anchor","attest_storage":"https://pith.science/pith/7QAW2QGBZDT445UCRL5XA4R73C/action/storage_attestation","attest_author":"https://pith.science/pith/7QAW2QGBZDT445UCRL5XA4R73C/action/author_attestation","sign_citation":"https://pith.science/pith/7QAW2QGBZDT445UCRL5XA4R73C/action/citation_signature","submit_replication":"https://pith.science/pith/7QAW2QGBZDT445UCRL5XA4R73C/action/replication_record"}},"created_at":"2026-05-18T00:46:20.848460+00:00","updated_at":"2026-05-18T00:46:20.848460+00:00"}