{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:2LO4QOLPCWUZ3O2AGCPEF36UC2","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":"f500ac1290d82ff7b6eb8b3ae1e4b22b066aaa1eef2769017ea02d5c0556bddc","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":"2026-05-26T17:58:12Z","title_canon_sha256":"1408211ea06521697fc909b709133b155f42cdb135afa051618c5e5d42c3884d"},"schema_version":"1.0","source":{"id":"2605.27357","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.27357","created_at":"2026-05-27T02:06:19Z"},{"alias_kind":"arxiv_version","alias_value":"2605.27357v1","created_at":"2026-05-27T02:06:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.27357","created_at":"2026-05-27T02:06:19Z"},{"alias_kind":"pith_short_12","alias_value":"2LO4QOLPCWUZ","created_at":"2026-05-27T02:06:19Z"},{"alias_kind":"pith_short_16","alias_value":"2LO4QOLPCWUZ3O2A","created_at":"2026-05-27T02:06:19Z"},{"alias_kind":"pith_short_8","alias_value":"2LO4QOLP","created_at":"2026-05-27T02:06:19Z"}],"graph_snapshots":[{"event_id":"sha256:900eb4dbb8b432b045dc18e90a8903125e68ee51b3fcba3ded96103822ebacf3","target":"graph","created_at":"2026-05-27T02:06:19Z","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/2605.27357/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Future gravitational wave (GW) standard siren catalogues will probe the late-time expansion history of the Universe across redshift ranges largely inaccessible to traditional electromagnetic observations. To determine how effectively this background distance information can distinguish between viable cosmological models, we introduce a model-independent reconstruction framework utilizing Gaussian Process Regression (GPR). Analyzing mock LISA and Einstein Telescope (ET) catalogues across six fiducial cosmological backgrounds-$\\Lambda$CDM, CPL, CPL+$\\Lambda$, interacting dark matter, interacting","authors_text":"Anish Ghoshal, David F. Mota, Gourab Nandi","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":"2026-05-26T17:58:12Z","title":"Gaussian Process Reconstruction of Cosmological Parameters with Gravitational Wave Sirens using Machine Learning"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.27357","kind":"arxiv","version":1},"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":"sha256:45741c290aecd044a206755964a9d60c33f09023082e4c2f76713a52cf1987f5","target":"record","created_at":"2026-05-27T02:06:19Z","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":"f500ac1290d82ff7b6eb8b3ae1e4b22b066aaa1eef2769017ea02d5c0556bddc","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":"2026-05-26T17:58:12Z","title_canon_sha256":"1408211ea06521697fc909b709133b155f42cdb135afa051618c5e5d42c3884d"},"schema_version":"1.0","source":{"id":"2605.27357","kind":"arxiv","version":1}},"canonical_sha256":"d2ddc8396f15a99dbb40309e42efd416af361bc7ed1e1ce734559b9561cae5d5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d2ddc8396f15a99dbb40309e42efd416af361bc7ed1e1ce734559b9561cae5d5","first_computed_at":"2026-05-27T02:06:19.657478Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-27T02:06:19.657478Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GwxA8BCHoR75MW6M6mvaD2QWd1NtklffICETVbfwHadGzrR40q5iGkNCjIm+jMyKEPs4AGp0uXlvG30A9szECQ==","signature_status":"signed_v1","signed_at":"2026-05-27T02:06:19.658403Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.27357","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:45741c290aecd044a206755964a9d60c33f09023082e4c2f76713a52cf1987f5","sha256:900eb4dbb8b432b045dc18e90a8903125e68ee51b3fcba3ded96103822ebacf3"],"state_sha256":"b131cf4431f18ba195996d0e2db39496abfca9649baceb6ec539eae5156c47b4"}