{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:ERRYF3M2HKKU36WWGHNNYX3246","short_pith_number":"pith:ERRYF3M2","schema_version":"1.0","canonical_sha256":"246382ed9a3a954dfad631dadc5f7ae79f20b5e1ad8e0e4fac42d94efeddb515","source":{"kind":"arxiv","id":"1604.03398","version":2},"attestation_state":"computed","paper":{"title":"Recovering a redshift-extended VSL signal from galaxy surveys","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Vincenzo Salzano","submitted_at":"2016-04-12T13:25:25Z","abstract_excerpt":"We investigate a new method to recover (if any) a possible varying speed of light (VSL) signal from cosmological data. It comes as an upgrade of [1,2], where it was argued that such signal could be detected at a single redshift location only. Here, we show how it is possible to extract information on a VSL signal on an extended redshift range. We use mock cosmological data from future galaxy surveys (BOSS, DESI, \\emph{WFirst-2.4} and SKA): the sound horizon at decoupling imprinted in the clustering of galaxies (BAO) as an angular diameter distance, and the expansion rate derived from those gal"},"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":"1604.03398","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2016-04-12T13:25:25Z","cross_cats_sorted":[],"title_canon_sha256":"c8bb0edc300d87b32e2a007b42f734a268c24da8a00f53f222654294fb31e904","abstract_canon_sha256":"f15bec3e6e803a10ff2d160aea8994534b8d1b84dd83e3234dd5f9e9d06046f1"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:45:36.485643Z","signature_b64":"ZsHTQwhZg2qZo30p45YxTv/suO4DB8b3kszfBf+bAXkHEGQ8e1vmJ4GjvP2ORq2pTnuK/IBYTX50+OzaB6lKDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"246382ed9a3a954dfad631dadc5f7ae79f20b5e1ad8e0e4fac42d94efeddb515","last_reissued_at":"2026-05-18T00:45:36.485109Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:45:36.485109Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Recovering a redshift-extended VSL signal from galaxy surveys","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Vincenzo Salzano","submitted_at":"2016-04-12T13:25:25Z","abstract_excerpt":"We investigate a new method to recover (if any) a possible varying speed of light (VSL) signal from cosmological data. It comes as an upgrade of [1,2], where it was argued that such signal could be detected at a single redshift location only. Here, we show how it is possible to extract information on a VSL signal on an extended redshift range. We use mock cosmological data from future galaxy surveys (BOSS, DESI, \\emph{WFirst-2.4} and SKA): the sound horizon at decoupling imprinted in the clustering of galaxies (BAO) as an angular diameter distance, and the expansion rate derived from those gal"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1604.03398","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":""},"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":"1604.03398","created_at":"2026-05-18T00:45:36.485193+00:00"},{"alias_kind":"arxiv_version","alias_value":"1604.03398v2","created_at":"2026-05-18T00:45:36.485193+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1604.03398","created_at":"2026-05-18T00:45:36.485193+00:00"},{"alias_kind":"pith_short_12","alias_value":"ERRYF3M2HKKU","created_at":"2026-05-18T12:30:12.583610+00:00"},{"alias_kind":"pith_short_16","alias_value":"ERRYF3M2HKKU36WW","created_at":"2026-05-18T12:30:12.583610+00:00"},{"alias_kind":"pith_short_8","alias_value":"ERRYF3M2","created_at":"2026-05-18T12:30:12.583610+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2605.06267","citing_title":"Revisiting the Constancy of the Speed of Light: Galaxy Cluster Mass Bias Implications","ref_index":9,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/ERRYF3M2HKKU36WWGHNNYX3246","json":"https://pith.science/pith/ERRYF3M2HKKU36WWGHNNYX3246.json","graph_json":"https://pith.science/api/pith-number/ERRYF3M2HKKU36WWGHNNYX3246/graph.json","events_json":"https://pith.science/api/pith-number/ERRYF3M2HKKU36WWGHNNYX3246/events.json","paper":"https://pith.science/paper/ERRYF3M2"},"agent_actions":{"view_html":"https://pith.science/pith/ERRYF3M2HKKU36WWGHNNYX3246","download_json":"https://pith.science/pith/ERRYF3M2HKKU36WWGHNNYX3246.json","view_paper":"https://pith.science/paper/ERRYF3M2","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1604.03398&json=true","fetch_graph":"https://pith.science/api/pith-number/ERRYF3M2HKKU36WWGHNNYX3246/graph.json","fetch_events":"https://pith.science/api/pith-number/ERRYF3M2HKKU36WWGHNNYX3246/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ERRYF3M2HKKU36WWGHNNYX3246/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ERRYF3M2HKKU36WWGHNNYX3246/action/storage_attestation","attest_author":"https://pith.science/pith/ERRYF3M2HKKU36WWGHNNYX3246/action/author_attestation","sign_citation":"https://pith.science/pith/ERRYF3M2HKKU36WWGHNNYX3246/action/citation_signature","submit_replication":"https://pith.science/pith/ERRYF3M2HKKU36WWGHNNYX3246/action/replication_record"}},"created_at":"2026-05-18T00:45:36.485193+00:00","updated_at":"2026-05-18T00:45:36.485193+00:00"}