{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:Q5THVMXDDCKHXDL27VPTCPND6W","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"810fd9e876475f0ec1a1d8504a39ca3947d509aeda47635721befdd2e07bb98f","cross_cats_sorted":["gr-qc","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-07-05T02:17:18Z","title_canon_sha256":"d567cb5c82a8b50aa70241f8ebb8e1ab86b5025c269e3d53c51b35988aee6af7"},"schema_version":"1.0","source":{"id":"2407.04220","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2407.04220","created_at":"2026-07-05T09:43:08Z"},{"alias_kind":"arxiv_version","alias_value":"2407.04220v2","created_at":"2026-07-05T09:43:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.04220","created_at":"2026-07-05T09:43:08Z"},{"alias_kind":"pith_short_12","alias_value":"Q5THVMXDDCKH","created_at":"2026-07-05T09:43:08Z"},{"alias_kind":"pith_short_16","alias_value":"Q5THVMXDDCKHXDL2","created_at":"2026-07-05T09:43:08Z"},{"alias_kind":"pith_short_8","alias_value":"Q5THVMXD","created_at":"2026-07-05T09:43:08Z"}],"graph_snapshots":[{"event_id":"sha256:80d22032ff4d591cb0dd02f6109c019da58a3ad1b8d3b1c00750fdc358db8c84","target":"graph","created_at":"2026-07-05T09:43:08Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2407.04220/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We investigate the evolution of cosmological scalar perturbations in the case that the background radiation is weakly coupled to a light scalar field $\\phi$. The light scalar $\\phi$ is a homogeneous background field with a large initial value. In the radiation-dominated Universe, the coupling term introduces an effective mass to $\\phi$ and the background ultra-relativistic particles. The oscillations of $\\phi$ result in the periodic change of the equation of state parameter and the sound speed, which provides a novel mechanism to amplify subhorizon scalar perturbations through parametric reson","authors_text":"Jing Liu, Rong-Gen Cai, Xiao-Bin Sui, Xing-Yu Yang","cross_cats":["gr-qc","hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-07-05T02:17:18Z","title":"Detecting the dark sector through scalar-induced gravitational waves"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.04220","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:2528421e073b2507bbe51acdaaa84ea7133bb1c6868d0fe0c794e5b9b92aa6a1","target":"record","created_at":"2026-07-05T09:43:08Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"810fd9e876475f0ec1a1d8504a39ca3947d509aeda47635721befdd2e07bb98f","cross_cats_sorted":["gr-qc","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-07-05T02:17:18Z","title_canon_sha256":"d567cb5c82a8b50aa70241f8ebb8e1ab86b5025c269e3d53c51b35988aee6af7"},"schema_version":"1.0","source":{"id":"2407.04220","kind":"arxiv","version":2}},"canonical_sha256":"87667ab2e318947b8d7afd5f313da3f59707fac90f9da864eb230b0107e2c430","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"87667ab2e318947b8d7afd5f313da3f59707fac90f9da864eb230b0107e2c430","first_computed_at":"2026-07-05T09:43:08.404158Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:43:08.404158Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PzPB2GzBO1JcG4elBpah4WqqRdbyADHnj/aE2FXFK7GWY0zsmDlCAF6GEe4eI7ebkXd/G76XLNGuSpdePpTdCw==","signature_status":"signed_v1","signed_at":"2026-07-05T09:43:08.404672Z","signed_message":"canonical_sha256_bytes"},"source_id":"2407.04220","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2528421e073b2507bbe51acdaaa84ea7133bb1c6868d0fe0c794e5b9b92aa6a1","sha256:80d22032ff4d591cb0dd02f6109c019da58a3ad1b8d3b1c00750fdc358db8c84"],"state_sha256":"99dbaa627f160ee7b90b3e11e6dda0de2240df33e0d25b0ab82cc604d7cca16d"}