{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:52OIKVPHSY6JCBHNCVHZQQOF6F","short_pith_number":"pith:52OIKVPH","schema_version":"1.0","canonical_sha256":"ee9c8555e7963c9104ed154f9841c5f14efcd1ca09101ffaf45c87598b3da5de","source":{"kind":"arxiv","id":"2509.07976","version":1},"attestation_state":"computed","paper":{"title":"Dynamical Dark Energy or Modified Gravity? Signatures in Gravitational Wave Propagation","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"gr-qc","authors_text":"Purnendu Karmakar, Sandeep Haridasu","submitted_at":"2025-09-09T17:57:33Z","abstract_excerpt":"We discuss the implications of the most recent DESI Baryon Acoustic Oscillations (BAO) DR2 and DESyr5 compilation of supernovae (SNe) datasets for modified gravity focusing on non-metricity based $f(Q)$ theory, by employing a `model-independent' approach. We reconstruct of dark energy density which is then extended to estimate the perturbation-level quantities, sourced by the modified gravity, namely the effective gravitational coupling, $\\mu$, and the amplitude damping parameter of gravitational wave propagation, $\\nu$. In light of the remarkable hints for a dynamical dark energy emerging fro"},"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":"2509.07976","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2025-09-09T17:57:33Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"11952da5101460772757d8e5ffbc14d164f3c7cca8afc5f878982e7e0b1a3814","abstract_canon_sha256":"ef62eec3d2be1c6e03b359bd4c7d8ac2ab2b8be21c928e5c49c4a23b3dcd7b2c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T12:07:43.717120Z","signature_b64":"3Gw/V7w91QfwuzLs4JlgRCCAS66F68VEi0Wr2T1E10d48lVuOIrBjt4rQJ44zPu+VzRhuwM86Ui1l20emPnDBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ee9c8555e7963c9104ed154f9841c5f14efcd1ca09101ffaf45c87598b3da5de","last_reissued_at":"2026-07-05T12:07:43.716397Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T12:07:43.716397Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Dynamical Dark Energy or Modified Gravity? Signatures in Gravitational Wave Propagation","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"gr-qc","authors_text":"Purnendu Karmakar, Sandeep Haridasu","submitted_at":"2025-09-09T17:57:33Z","abstract_excerpt":"We discuss the implications of the most recent DESI Baryon Acoustic Oscillations (BAO) DR2 and DESyr5 compilation of supernovae (SNe) datasets for modified gravity focusing on non-metricity based $f(Q)$ theory, by employing a `model-independent' approach. We reconstruct of dark energy density which is then extended to estimate the perturbation-level quantities, sourced by the modified gravity, namely the effective gravitational coupling, $\\mu$, and the amplitude damping parameter of gravitational wave propagation, $\\nu$. In light of the remarkable hints for a dynamical dark energy emerging fro"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2509.07976","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2509.07976/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":"2509.07976","created_at":"2026-07-05T12:07:43.716463+00:00"},{"alias_kind":"arxiv_version","alias_value":"2509.07976v1","created_at":"2026-07-05T12:07:43.716463+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2509.07976","created_at":"2026-07-05T12:07:43.716463+00:00"},{"alias_kind":"pith_short_12","alias_value":"52OIKVPHSY6J","created_at":"2026-07-05T12:07:43.716463+00:00"},{"alias_kind":"pith_short_16","alias_value":"52OIKVPHSY6JCBHN","created_at":"2026-07-05T12:07:43.716463+00:00"},{"alias_kind":"pith_short_8","alias_value":"52OIKVPH","created_at":"2026-07-05T12:07:43.716463+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/52OIKVPHSY6JCBHNCVHZQQOF6F","json":"https://pith.science/pith/52OIKVPHSY6JCBHNCVHZQQOF6F.json","graph_json":"https://pith.science/api/pith-number/52OIKVPHSY6JCBHNCVHZQQOF6F/graph.json","events_json":"https://pith.science/api/pith-number/52OIKVPHSY6JCBHNCVHZQQOF6F/events.json","paper":"https://pith.science/paper/52OIKVPH"},"agent_actions":{"view_html":"https://pith.science/pith/52OIKVPHSY6JCBHNCVHZQQOF6F","download_json":"https://pith.science/pith/52OIKVPHSY6JCBHNCVHZQQOF6F.json","view_paper":"https://pith.science/paper/52OIKVPH","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2509.07976&json=true","fetch_graph":"https://pith.science/api/pith-number/52OIKVPHSY6JCBHNCVHZQQOF6F/graph.json","fetch_events":"https://pith.science/api/pith-number/52OIKVPHSY6JCBHNCVHZQQOF6F/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/52OIKVPHSY6JCBHNCVHZQQOF6F/action/timestamp_anchor","attest_storage":"https://pith.science/pith/52OIKVPHSY6JCBHNCVHZQQOF6F/action/storage_attestation","attest_author":"https://pith.science/pith/52OIKVPHSY6JCBHNCVHZQQOF6F/action/author_attestation","sign_citation":"https://pith.science/pith/52OIKVPHSY6JCBHNCVHZQQOF6F/action/citation_signature","submit_replication":"https://pith.science/pith/52OIKVPHSY6JCBHNCVHZQQOF6F/action/replication_record"}},"created_at":"2026-07-05T12:07:43.716463+00:00","updated_at":"2026-07-05T12:07:43.716463+00:00"}