{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2024:P6QL2CBU5TY2UQK56IVXAWER4A","short_pith_number":"pith:P6QL2CBU","schema_version":"1.0","canonical_sha256":"7fa0bd0834ecf1aa415df22b705891e00fa727e50f209c4f7ddeae7c10f772e4","source":{"kind":"arxiv","id":"2404.02864","version":1},"attestation_state":"computed","paper":{"title":"Forecasting the sensitivity of Pulsar Timing Arrays to gravitational wave backgrounds","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE","gr-qc","hep-ph"],"primary_cat":"astro-ph.CO","authors_text":"Gabriele Franciolini, Mauro Pieroni, Mikel Falxa, Stanislav Babak","submitted_at":"2024-04-03T16:57:19Z","abstract_excerpt":"Pulsar Timing Array (PTA) observations hinted towards the existence of a stochastic gravitational wave background (SGWB) in the nHz frequency band. Still, the nature of the SGWB signal cannot be confidently inferred from current data, and the leading explanation invokes mergers of supermassive black holes. If confirmed, such discovery would not only represent a turning point in our understanding of astrophysics, but it may severely limit the capability of searching for additional cosmological sources in the nHz frequency range. In this work, we build a simple framework to forecast the sensitiv"},"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":"2404.02864","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-04-03T16:57:19Z","cross_cats_sorted":["astro-ph.HE","gr-qc","hep-ph"],"title_canon_sha256":"0047dd6fd3b5af94faa782d97907d949a98a424d46e6297f3b5ccae49f212404","abstract_canon_sha256":"a3e383a5bf65c0decdbbbce3b07d0b36c2c126bf8c9f39bc98c2e1a4c9ef545a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:04:02.121297Z","signature_b64":"KK6LbIDax9TRop3Ezl2m7h/WrXcGygxGJvP0uhu6gVGf6djtZbXIloN41AZc2QloJ2VbEvml64FzppXZwBavDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7fa0bd0834ecf1aa415df22b705891e00fa727e50f209c4f7ddeae7c10f772e4","last_reissued_at":"2026-07-05T08:04:02.120881Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:04:02.120881Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Forecasting the sensitivity of Pulsar Timing Arrays to gravitational wave backgrounds","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE","gr-qc","hep-ph"],"primary_cat":"astro-ph.CO","authors_text":"Gabriele Franciolini, Mauro Pieroni, Mikel Falxa, Stanislav Babak","submitted_at":"2024-04-03T16:57:19Z","abstract_excerpt":"Pulsar Timing Array (PTA) observations hinted towards the existence of a stochastic gravitational wave background (SGWB) in the nHz frequency band. Still, the nature of the SGWB signal cannot be confidently inferred from current data, and the leading explanation invokes mergers of supermassive black holes. If confirmed, such discovery would not only represent a turning point in our understanding of astrophysics, but it may severely limit the capability of searching for additional cosmological sources in the nHz frequency range. In this work, we build a simple framework to forecast the sensitiv"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2404.02864","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/2404.02864/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":"2404.02864","created_at":"2026-07-05T08:04:02.120937+00:00"},{"alias_kind":"arxiv_version","alias_value":"2404.02864v1","created_at":"2026-07-05T08:04:02.120937+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2404.02864","created_at":"2026-07-05T08:04:02.120937+00:00"},{"alias_kind":"pith_short_12","alias_value":"P6QL2CBU5TY2","created_at":"2026-07-05T08:04:02.120937+00:00"},{"alias_kind":"pith_short_16","alias_value":"P6QL2CBU5TY2UQK5","created_at":"2026-07-05T08:04:02.120937+00:00"},{"alias_kind":"pith_short_8","alias_value":"P6QL2CBU","created_at":"2026-07-05T08:04:02.120937+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":6,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2605.14684","citing_title":"QCD axion from broken scale symmetry","ref_index":47,"is_internal_anchor":false},{"citing_arxiv_id":"2606.28571","citing_title":"The NANOGrav 15 yr Data Set: Customized Chromatic Noise Models","ref_index":59,"is_internal_anchor":false},{"citing_arxiv_id":"2606.28554","citing_title":"The NANOGrav 15 yr Data Set: Impacts of Customized Chromatic Noise Models on Gravitational Wave Analyses","ref_index":45,"is_internal_anchor":false},{"citing_arxiv_id":"2603.07469","citing_title":"Can Oscillatory and Persistent Nonlinearities Be Bridged in Black Hole Ringdown?","ref_index":36,"is_internal_anchor":false},{"citing_arxiv_id":"2603.07469","citing_title":"Can Oscillatory and Persistent Nonlinearities Be Bridged in Black Hole Ringdown?","ref_index":36,"is_internal_anchor":false},{"citing_arxiv_id":"2605.04487","citing_title":"Gravitational wave emission from nonspherical collapse in an early matter-dominated era using N-body simulations","ref_index":64,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/P6QL2CBU5TY2UQK56IVXAWER4A","json":"https://pith.science/pith/P6QL2CBU5TY2UQK56IVXAWER4A.json","graph_json":"https://pith.science/api/pith-number/P6QL2CBU5TY2UQK56IVXAWER4A/graph.json","events_json":"https://pith.science/api/pith-number/P6QL2CBU5TY2UQK56IVXAWER4A/events.json","paper":"https://pith.science/paper/P6QL2CBU"},"agent_actions":{"view_html":"https://pith.science/pith/P6QL2CBU5TY2UQK56IVXAWER4A","download_json":"https://pith.science/pith/P6QL2CBU5TY2UQK56IVXAWER4A.json","view_paper":"https://pith.science/paper/P6QL2CBU","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2404.02864&json=true","fetch_graph":"https://pith.science/api/pith-number/P6QL2CBU5TY2UQK56IVXAWER4A/graph.json","fetch_events":"https://pith.science/api/pith-number/P6QL2CBU5TY2UQK56IVXAWER4A/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/P6QL2CBU5TY2UQK56IVXAWER4A/action/timestamp_anchor","attest_storage":"https://pith.science/pith/P6QL2CBU5TY2UQK56IVXAWER4A/action/storage_attestation","attest_author":"https://pith.science/pith/P6QL2CBU5TY2UQK56IVXAWER4A/action/author_attestation","sign_citation":"https://pith.science/pith/P6QL2CBU5TY2UQK56IVXAWER4A/action/citation_signature","submit_replication":"https://pith.science/pith/P6QL2CBU5TY2UQK56IVXAWER4A/action/replication_record"}},"created_at":"2026-07-05T08:04:02.120937+00:00","updated_at":"2026-07-05T08:04:02.120937+00:00"}