{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2022:Y4PV5K5CPNIHQSLFGIERLOFGU4","short_pith_number":"pith:Y4PV5K5C","schema_version":"1.0","canonical_sha256":"c71f5eaba27b50784965320915b8a6a7317284b1f8c75009ef61316f90fcfda8","source":{"kind":"arxiv","id":"2212.09932","version":2},"attestation_state":"computed","paper":{"title":"Newtonian Fractional-Dimension Gravity and Galaxies without Dark Matter","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"gr-qc","authors_text":"Gabriele U. Varieschi","submitted_at":"2022-12-20T00:51:46Z","abstract_excerpt":"We apply Newtonian Fractional-Dimension Gravity (NFDG), an alternative gravitational model, to some notable cases of galaxies with little or no dark matter. In the case of the ultra-diffuse galaxy AGC 114905, we show that NFDG methods can effectively reproduce the observed rotation curve, by using a variable fractional dimension $D\\left (R\\right )$ as was done for other galaxies in previous studies. For AGC 114905, we obtain a variable dimension in the range $D \\approx 2.2 -3.2$, but our fixed $D =3$ curve can still fit all the experimental data within their error bars. This confirms other stu"},"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":"2212.09932","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2022-12-20T00:51:46Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"8cb734a9ed4e51ead5bdbe700e8bcfdc2323ecac7f62dc730d10df6acd0459fd","abstract_canon_sha256":"2ed130fdf9a7c208e55f71f0d9b33f6a9d4845313e575ace4037bd2c81964c41"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:14:57.027028Z","signature_b64":"KT3i/Llfn24dHmtXwfZbIRX7iJFpZmEAjfqCB+b2IKmwb4XnWaP/Sp1ALergC3JN5vcmL/NdN8n3AIREJIM0BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c71f5eaba27b50784965320915b8a6a7317284b1f8c75009ef61316f90fcfda8","last_reissued_at":"2026-07-05T06:14:57.026688Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:14:57.026688Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Newtonian Fractional-Dimension Gravity and Galaxies without Dark Matter","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"gr-qc","authors_text":"Gabriele U. Varieschi","submitted_at":"2022-12-20T00:51:46Z","abstract_excerpt":"We apply Newtonian Fractional-Dimension Gravity (NFDG), an alternative gravitational model, to some notable cases of galaxies with little or no dark matter. In the case of the ultra-diffuse galaxy AGC 114905, we show that NFDG methods can effectively reproduce the observed rotation curve, by using a variable fractional dimension $D\\left (R\\right )$ as was done for other galaxies in previous studies. For AGC 114905, we obtain a variable dimension in the range $D \\approx 2.2 -3.2$, but our fixed $D =3$ curve can still fit all the experimental data within their error bars. This confirms other stu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2212.09932","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2212.09932/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2212.09932","created_at":"2026-07-05T06:14:57.026742+00:00"},{"alias_kind":"arxiv_version","alias_value":"2212.09932v2","created_at":"2026-07-05T06:14:57.026742+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2212.09932","created_at":"2026-07-05T06:14:57.026742+00:00"},{"alias_kind":"pith_short_12","alias_value":"Y4PV5K5CPNIH","created_at":"2026-07-05T06:14:57.026742+00:00"},{"alias_kind":"pith_short_16","alias_value":"Y4PV5K5CPNIHQSLF","created_at":"2026-07-05T06:14:57.026742+00:00"},{"alias_kind":"pith_short_8","alias_value":"Y4PV5K5C","created_at":"2026-07-05T06:14:57.026742+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2607.01412","citing_title":"Fractional-Dimension Gravity and the Milky Way Galaxy","ref_index":31,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/Y4PV5K5CPNIHQSLFGIERLOFGU4","json":"https://pith.science/pith/Y4PV5K5CPNIHQSLFGIERLOFGU4.json","graph_json":"https://pith.science/api/pith-number/Y4PV5K5CPNIHQSLFGIERLOFGU4/graph.json","events_json":"https://pith.science/api/pith-number/Y4PV5K5CPNIHQSLFGIERLOFGU4/events.json","paper":"https://pith.science/paper/Y4PV5K5C"},"agent_actions":{"view_html":"https://pith.science/pith/Y4PV5K5CPNIHQSLFGIERLOFGU4","download_json":"https://pith.science/pith/Y4PV5K5CPNIHQSLFGIERLOFGU4.json","view_paper":"https://pith.science/paper/Y4PV5K5C","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2212.09932&json=true","fetch_graph":"https://pith.science/api/pith-number/Y4PV5K5CPNIHQSLFGIERLOFGU4/graph.json","fetch_events":"https://pith.science/api/pith-number/Y4PV5K5CPNIHQSLFGIERLOFGU4/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/Y4PV5K5CPNIHQSLFGIERLOFGU4/action/timestamp_anchor","attest_storage":"https://pith.science/pith/Y4PV5K5CPNIHQSLFGIERLOFGU4/action/storage_attestation","attest_author":"https://pith.science/pith/Y4PV5K5CPNIHQSLFGIERLOFGU4/action/author_attestation","sign_citation":"https://pith.science/pith/Y4PV5K5CPNIHQSLFGIERLOFGU4/action/citation_signature","submit_replication":"https://pith.science/pith/Y4PV5K5CPNIHQSLFGIERLOFGU4/action/replication_record"}},"created_at":"2026-07-05T06:14:57.026742+00:00","updated_at":"2026-07-05T06:14:57.026742+00:00"}