{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:QV2ZURP6E3HOV4UT3NO633EY57","short_pith_number":"pith:QV2ZURP6","schema_version":"1.0","canonical_sha256":"85759a45fe26ceeaf293db5dedec98effe2049327ed89a05906e0d37a3da858f","source":{"kind":"arxiv","id":"1612.02817","version":3},"attestation_state":"computed","paper":{"title":"Constraints On The Dynamical Environments Of Supermassive Black-hole Binaries Using Pulsar-timing Arrays","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM","gr-qc"],"primary_cat":"astro-ph.GA","authors_text":"Joseph Simon, Laura Sampson, Stephen R. Taylor","submitted_at":"2016-12-08T21:00:00Z","abstract_excerpt":"We introduce a technique for gravitational-wave analysis, where Gaussian process regression is used to emulate the strain spectrum of a stochastic background using population-synthesis simulations. This leads to direct Bayesian inference on astrophysical parameters. For PTAs specifically, we interpolate over the parameter space of supermassive black-hole binary environments, including 3-body stellar scattering, and evolving orbital eccentricity. We illustrate our approach on mock data, and assess the prospects for inference with data similar to the NANOGrav 9-yr data release."},"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":"1612.02817","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-12-08T21:00:00Z","cross_cats_sorted":["astro-ph.IM","gr-qc"],"title_canon_sha256":"cc9018e9272c6c21fbfb8c2ec7f3cb8452adff22de99d0c3e6942ab567b44344","abstract_canon_sha256":"db3d062e568f5abe85cb40d9af7059f066ec632854e897e144572e608cdb3996"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:44:47.255908Z","signature_b64":"XICzpzGSqtf4gIUJ90Ed7eOCsoXUJyTS61VjGvovGCmfuAFxCCq/558lGtdGh7Nw9YFZg/DLNRsdAejm1P6QBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"85759a45fe26ceeaf293db5dedec98effe2049327ed89a05906e0d37a3da858f","last_reissued_at":"2026-05-18T00:44:47.255387Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:44:47.255387Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Constraints On The Dynamical Environments Of Supermassive Black-hole Binaries Using Pulsar-timing Arrays","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM","gr-qc"],"primary_cat":"astro-ph.GA","authors_text":"Joseph Simon, Laura Sampson, Stephen R. Taylor","submitted_at":"2016-12-08T21:00:00Z","abstract_excerpt":"We introduce a technique for gravitational-wave analysis, where Gaussian process regression is used to emulate the strain spectrum of a stochastic background using population-synthesis simulations. This leads to direct Bayesian inference on astrophysical parameters. For PTAs specifically, we interpolate over the parameter space of supermassive black-hole binary environments, including 3-body stellar scattering, and evolving orbital eccentricity. We illustrate our approach on mock data, and assess the prospects for inference with data similar to the NANOGrav 9-yr data release."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.02817","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"1612.02817","created_at":"2026-05-18T00:44:47.255462+00:00"},{"alias_kind":"arxiv_version","alias_value":"1612.02817v3","created_at":"2026-05-18T00:44:47.255462+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.02817","created_at":"2026-05-18T00:44:47.255462+00:00"},{"alias_kind":"pith_short_12","alias_value":"QV2ZURP6E3HO","created_at":"2026-05-18T12:30:41.710351+00:00"},{"alias_kind":"pith_short_16","alias_value":"QV2ZURP6E3HOV4UT","created_at":"2026-05-18T12:30:41.710351+00:00"},{"alias_kind":"pith_short_8","alias_value":"QV2ZURP6","created_at":"2026-05-18T12:30:41.710351+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":2,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2604.08506","citing_title":"The Heavy Tailed Non-Gaussianity of the Supermassive Black Hole Gravitational Wave Background","ref_index":22,"is_internal_anchor":false},{"citing_arxiv_id":"2007.05579","citing_title":"Inferring the properties of a population of compact binaries in presence of selection effects","ref_index":32,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/QV2ZURP6E3HOV4UT3NO633EY57","json":"https://pith.science/pith/QV2ZURP6E3HOV4UT3NO633EY57.json","graph_json":"https://pith.science/api/pith-number/QV2ZURP6E3HOV4UT3NO633EY57/graph.json","events_json":"https://pith.science/api/pith-number/QV2ZURP6E3HOV4UT3NO633EY57/events.json","paper":"https://pith.science/paper/QV2ZURP6"},"agent_actions":{"view_html":"https://pith.science/pith/QV2ZURP6E3HOV4UT3NO633EY57","download_json":"https://pith.science/pith/QV2ZURP6E3HOV4UT3NO633EY57.json","view_paper":"https://pith.science/paper/QV2ZURP6","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1612.02817&json=true","fetch_graph":"https://pith.science/api/pith-number/QV2ZURP6E3HOV4UT3NO633EY57/graph.json","fetch_events":"https://pith.science/api/pith-number/QV2ZURP6E3HOV4UT3NO633EY57/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/QV2ZURP6E3HOV4UT3NO633EY57/action/timestamp_anchor","attest_storage":"https://pith.science/pith/QV2ZURP6E3HOV4UT3NO633EY57/action/storage_attestation","attest_author":"https://pith.science/pith/QV2ZURP6E3HOV4UT3NO633EY57/action/author_attestation","sign_citation":"https://pith.science/pith/QV2ZURP6E3HOV4UT3NO633EY57/action/citation_signature","submit_replication":"https://pith.science/pith/QV2ZURP6E3HOV4UT3NO633EY57/action/replication_record"}},"created_at":"2026-05-18T00:44:47.255462+00:00","updated_at":"2026-05-18T00:44:47.255462+00:00"}