{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:HLIEDYBFLSUPATGQKLKQZ5E5XR","short_pith_number":"pith:HLIEDYBF","schema_version":"1.0","canonical_sha256":"3ad041e0255ca8f04cd052d50cf49dbc48d6308ef9f34048478ef4c5686826df","source":{"kind":"arxiv","id":"1604.01099","version":1},"attestation_state":"computed","paper":{"title":"A new estimator of the deceleration parameter from galaxy rotation curves","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Maurice H.P.M. van Putten","submitted_at":"2016-04-05T00:30:40Z","abstract_excerpt":"The nature of dark energy may be probed by the derivative $Q=\\left.dq(z)/dz\\right|_0$ at redshift $z=0$ of the deceleration parameter $q(z)$. It is probably static if $Q<1$ or dynamic if $Q>2.5$, supporting $\\Lambda$CDM or, respectively, $\\Lambda=(1-q)H^2$, where $H$ denotes the Hubble parameter. We derive $q=1-\\left(4\\pi a_0/cH\\right)^{2}$, enabling a determination of $q(z)$ by measurement of Milgrom's parameter $a_0(z)$ in galaxy rotation curves, equivalent to the coefficient $A$ in the Tully-Fisher relation $V^4_c=AM_b$ between rotation velocity $V_c$ and baryonic mass $M_b$. We infer that "},"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":"1604.01099","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-04-05T00:30:40Z","cross_cats_sorted":[],"title_canon_sha256":"41b4989b87308fff3e71e4bf50d2b73f9c4b3c0da5a7a57857ba62fa0dd38dbe","abstract_canon_sha256":"48eb0ed61fb51421611f22cb37bc6bcd4f7ccca2e355286b2ea60c508400401b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:12:29.618244Z","signature_b64":"lhUGVWgQFslQN4vmjLw/wue6wuTIj39Bklum+eh1rqNEUbc4+xVEcgPQKb160XPMeJlvq5bsphNPPCnQSA3GCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3ad041e0255ca8f04cd052d50cf49dbc48d6308ef9f34048478ef4c5686826df","last_reissued_at":"2026-05-18T01:12:29.617871Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:12:29.617871Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A new estimator of the deceleration parameter from galaxy rotation curves","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Maurice H.P.M. van Putten","submitted_at":"2016-04-05T00:30:40Z","abstract_excerpt":"The nature of dark energy may be probed by the derivative $Q=\\left.dq(z)/dz\\right|_0$ at redshift $z=0$ of the deceleration parameter $q(z)$. It is probably static if $Q<1$ or dynamic if $Q>2.5$, supporting $\\Lambda$CDM or, respectively, $\\Lambda=(1-q)H^2$, where $H$ denotes the Hubble parameter. We derive $q=1-\\left(4\\pi a_0/cH\\right)^{2}$, enabling a determination of $q(z)$ by measurement of Milgrom's parameter $a_0(z)$ in galaxy rotation curves, equivalent to the coefficient $A$ in the Tully-Fisher relation $V^4_c=AM_b$ between rotation velocity $V_c$ and baryonic mass $M_b$. We infer that "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1604.01099","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":"1604.01099","created_at":"2026-05-18T01:12:29.617927+00:00"},{"alias_kind":"arxiv_version","alias_value":"1604.01099v1","created_at":"2026-05-18T01:12:29.617927+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1604.01099","created_at":"2026-05-18T01:12:29.617927+00:00"},{"alias_kind":"pith_short_12","alias_value":"HLIEDYBFLSUP","created_at":"2026-05-18T12:30:19.053100+00:00"},{"alias_kind":"pith_short_16","alias_value":"HLIEDYBFLSUPATGQ","created_at":"2026-05-18T12:30:19.053100+00:00"},{"alias_kind":"pith_short_8","alias_value":"HLIEDYBF","created_at":"2026-05-18T12:30:19.053100+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2608.07112","citing_title":"Parameter-free prediction of the asymptotic acceleration scale confirmed by weak lensing","ref_index":9,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/HLIEDYBFLSUPATGQKLKQZ5E5XR","json":"https://pith.science/pith/HLIEDYBFLSUPATGQKLKQZ5E5XR.json","graph_json":"https://pith.science/api/pith-number/HLIEDYBFLSUPATGQKLKQZ5E5XR/graph.json","events_json":"https://pith.science/api/pith-number/HLIEDYBFLSUPATGQKLKQZ5E5XR/events.json","paper":"https://pith.science/paper/HLIEDYBF"},"agent_actions":{"view_html":"https://pith.science/pith/HLIEDYBFLSUPATGQKLKQZ5E5XR","download_json":"https://pith.science/pith/HLIEDYBFLSUPATGQKLKQZ5E5XR.json","view_paper":"https://pith.science/paper/HLIEDYBF","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1604.01099&json=true","fetch_graph":"https://pith.science/api/pith-number/HLIEDYBFLSUPATGQKLKQZ5E5XR/graph.json","fetch_events":"https://pith.science/api/pith-number/HLIEDYBFLSUPATGQKLKQZ5E5XR/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/HLIEDYBFLSUPATGQKLKQZ5E5XR/action/timestamp_anchor","attest_storage":"https://pith.science/pith/HLIEDYBFLSUPATGQKLKQZ5E5XR/action/storage_attestation","attest_author":"https://pith.science/pith/HLIEDYBFLSUPATGQKLKQZ5E5XR/action/author_attestation","sign_citation":"https://pith.science/pith/HLIEDYBFLSUPATGQKLKQZ5E5XR/action/citation_signature","submit_replication":"https://pith.science/pith/HLIEDYBFLSUPATGQKLKQZ5E5XR/action/replication_record"}},"created_at":"2026-05-18T01:12:29.617927+00:00","updated_at":"2026-05-18T01:12:29.617927+00:00"}