{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2005:RFCNC425BD7LJHVC7I4PSR5FGG","short_pith_number":"pith:RFCNC425","schema_version":"1.0","canonical_sha256":"8944d1735d08feb49ea2fa38f947a531a45fad7ba18f22c892c9474906a0dc16","source":{"kind":"arxiv","id":"astro-ph/0510760","version":2},"attestation_state":"computed","paper":{"title":"Constraints on changes in fundamental constants from a cosmologically distant OH absorber/emitter","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"C. L. Carilli (NRAO), F. Combes (Observatoire de Paris - LERMA), F. H. Briggs (ATNF/ANU), G. I. Langston (NRAO), G. Rocha (Cambridge), J. T. Stocke (University of Colorado), K. M. Menten (MPIfR), N. Kanekar (NRAO), R. Subrahmanyan (ATNF), T. Wiklind (STScI)","submitted_at":"2005-10-27T00:10:37Z","abstract_excerpt":"We have detected the four 18cm OH lines from the $z \\sim 0.765$ gravitational lens toward PMN J0134-0931. The 1612 and 1720 MHz lines are in conjugate absorption and emission, providing a laboratory to test the evolution of fundamental constants over a large lookback time. We compare the HI and OH main line absorption redshifts of the different components in the $z \\sim 0.765$ absorber and the $z \\sim 0.685$ lens toward B0218+357 to place stringent constraints on changes in $F \\equiv g_p [\\alpha^2/\\mu]^{1.57}$. We obtain $[\\Delta F/F] = (0.44 \\pm 0.36^{\\rm stat} \\pm 1.0^{\\rm syst}) \\times 10^{"},"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":"astro-ph/0510760","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-10-27T00:10:37Z","cross_cats_sorted":[],"title_canon_sha256":"fdac0a42984f442c42d80cae968168ccb2844729e4dc8147875cae2e4c937fbd","abstract_canon_sha256":"598c252112bea700778c75f4085b19a2ee7edcce1d427ce5598e0266ff341236"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:31:20.465812Z","signature_b64":"7qcYiqf/lmeXxcbXYLc7KCEt73iIIhnmZJf/UzkensHruMGkxfD6pf2imEuQUhRc91y66naAs81AriNKWnhTCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8944d1735d08feb49ea2fa38f947a531a45fad7ba18f22c892c9474906a0dc16","last_reissued_at":"2026-07-04T15:31:20.465431Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:31:20.465431Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Constraints on changes in fundamental constants from a cosmologically distant OH absorber/emitter","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"C. L. Carilli (NRAO), F. Combes (Observatoire de Paris - LERMA), F. H. Briggs (ATNF/ANU), G. I. Langston (NRAO), G. Rocha (Cambridge), J. T. Stocke (University of Colorado), K. M. Menten (MPIfR), N. Kanekar (NRAO), R. Subrahmanyan (ATNF), T. Wiklind (STScI)","submitted_at":"2005-10-27T00:10:37Z","abstract_excerpt":"We have detected the four 18cm OH lines from the $z \\sim 0.765$ gravitational lens toward PMN J0134-0931. The 1612 and 1720 MHz lines are in conjugate absorption and emission, providing a laboratory to test the evolution of fundamental constants over a large lookback time. We compare the HI and OH main line absorption redshifts of the different components in the $z \\sim 0.765$ absorber and the $z \\sim 0.685$ lens toward B0218+357 to place stringent constraints on changes in $F \\equiv g_p [\\alpha^2/\\mu]^{1.57}$. We obtain $[\\Delta F/F] = (0.44 \\pm 0.36^{\\rm stat} \\pm 1.0^{\\rm syst}) \\times 10^{"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0510760","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/astro-ph/0510760/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":"astro-ph/0510760","created_at":"2026-07-04T15:31:20.465492+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0510760v2","created_at":"2026-07-04T15:31:20.465492+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0510760","created_at":"2026-07-04T15:31:20.465492+00:00"},{"alias_kind":"pith_short_12","alias_value":"RFCNC425BD7L","created_at":"2026-07-04T15:31:20.465492+00:00"},{"alias_kind":"pith_short_16","alias_value":"RFCNC425BD7LJHVC","created_at":"2026-07-04T15:31:20.465492+00:00"},{"alias_kind":"pith_short_8","alias_value":"RFCNC425","created_at":"2026-07-04T15:31:20.465492+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2606.31546","citing_title":"Tracing Cold Gas in Absorption Across Cosmic Time with the SKA","ref_index":16,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/RFCNC425BD7LJHVC7I4PSR5FGG","json":"https://pith.science/pith/RFCNC425BD7LJHVC7I4PSR5FGG.json","graph_json":"https://pith.science/api/pith-number/RFCNC425BD7LJHVC7I4PSR5FGG/graph.json","events_json":"https://pith.science/api/pith-number/RFCNC425BD7LJHVC7I4PSR5FGG/events.json","paper":"https://pith.science/paper/RFCNC425"},"agent_actions":{"view_html":"https://pith.science/pith/RFCNC425BD7LJHVC7I4PSR5FGG","download_json":"https://pith.science/pith/RFCNC425BD7LJHVC7I4PSR5FGG.json","view_paper":"https://pith.science/paper/RFCNC425","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0510760&json=true","fetch_graph":"https://pith.science/api/pith-number/RFCNC425BD7LJHVC7I4PSR5FGG/graph.json","fetch_events":"https://pith.science/api/pith-number/RFCNC425BD7LJHVC7I4PSR5FGG/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/RFCNC425BD7LJHVC7I4PSR5FGG/action/timestamp_anchor","attest_storage":"https://pith.science/pith/RFCNC425BD7LJHVC7I4PSR5FGG/action/storage_attestation","attest_author":"https://pith.science/pith/RFCNC425BD7LJHVC7I4PSR5FGG/action/author_attestation","sign_citation":"https://pith.science/pith/RFCNC425BD7LJHVC7I4PSR5FGG/action/citation_signature","submit_replication":"https://pith.science/pith/RFCNC425BD7LJHVC7I4PSR5FGG/action/replication_record"}},"created_at":"2026-07-04T15:31:20.465492+00:00","updated_at":"2026-07-04T15:31:20.465492+00:00"}