{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:Q5QLIELHAZOSGJTBC6WVXPJCFT","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":"abf92b28de0b21ba86858d49ea68593a01a328cdbaeda05141c6c20253679eda","cross_cats_sorted":["gr-qc","hep-ph","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-02-21T18:59:07Z","title_canon_sha256":"e7635507fd363b09639a0020b7391f5bf2da7c83d5161e9bc1f0eef6e6b71d78"},"schema_version":"1.0","source":{"id":"1902.08187","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.08187","created_at":"2026-07-04T23:59:06Z"},{"alias_kind":"arxiv_version","alias_value":"1902.08187v2","created_at":"2026-07-04T23:59:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.08187","created_at":"2026-07-04T23:59:06Z"},{"alias_kind":"pith_short_12","alias_value":"Q5QLIELHAZOS","created_at":"2026-07-04T23:59:06Z"},{"alias_kind":"pith_short_16","alias_value":"Q5QLIELHAZOSGJTB","created_at":"2026-07-04T23:59:06Z"},{"alias_kind":"pith_short_8","alias_value":"Q5QLIELH","created_at":"2026-07-04T23:59:06Z"}],"graph_snapshots":[{"event_id":"sha256:f72cf53b791351e89426d75004916c29042d02852a5dd00f84331f22e21e8145","target":"graph","created_at":"2026-07-04T23:59:06Z","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/1902.08187/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"As potential candidates of dark matter, primordial black holes (PBHs) are within the core scopes of various astronomical observations. In light of the explosive development of gravitational wave (GW) and radio astronomy, we thoroughly analyze a stochastic background of cosmological GWs, induced by over large primordial density perturbations, with several spikes that was inspired by the sound speed resonance effect and can predict a particular pattern on the mass spectrum of PBHs. With a specific mechanicsm for PBHs formation, we for the first time perform the study of such induced GWs that ori","authors_text":"Chao Chen, Dong-Gang Wang, Sheng-Feng Yan, Xi Tong, Yi-Fu Cai","cross_cats":["gr-qc","hep-ph","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-02-21T18:59:07Z","title":"When Primordial Black Holes from Sound Speed Resonance Meet a Stochastic Background of Gravitational Waves"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.08187","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":"sha256:89e03b23b509d4ab9eece0c9cbed1951f42aa3442f5c612486252941447715bc","target":"record","created_at":"2026-07-04T23:59:06Z","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":"abf92b28de0b21ba86858d49ea68593a01a328cdbaeda05141c6c20253679eda","cross_cats_sorted":["gr-qc","hep-ph","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-02-21T18:59:07Z","title_canon_sha256":"e7635507fd363b09639a0020b7391f5bf2da7c83d5161e9bc1f0eef6e6b71d78"},"schema_version":"1.0","source":{"id":"1902.08187","kind":"arxiv","version":2}},"canonical_sha256":"8760b41167065d23266117ad5bbd222ceae5be5d57e0d05ff1b09d06f6dac5b2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8760b41167065d23266117ad5bbd222ceae5be5d57e0d05ff1b09d06f6dac5b2","first_computed_at":"2026-07-04T23:59:06.189390Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T23:59:06.189390Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5Ryxi6pSSgssMLDwvFggf4Ov1dwtdiFi9Qqb0HBiKj7/UqgTUxIFhCzS9z8Ewi0R7w/H1oFiTgjvqs86CcEgAg==","signature_status":"signed_v1","signed_at":"2026-07-04T23:59:06.189925Z","signed_message":"canonical_sha256_bytes"},"source_id":"1902.08187","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:89e03b23b509d4ab9eece0c9cbed1951f42aa3442f5c612486252941447715bc","sha256:f72cf53b791351e89426d75004916c29042d02852a5dd00f84331f22e21e8145"],"state_sha256":"1bf583be87768f2831ddd11a1427c9f5583da8962cced0217b1a3754f8cae6d6"}