{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:AQUH5UEE2NQSI52D57NBH5YKEB","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":"a64e00d035aa6ce0a35dce1424f6e7689781a4ee3a78368f2dc89c8be3d306db","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-03-31T12:15:01Z","title_canon_sha256":"6f24bf625712fb3b8c360068aa111687a446ab636a01c518fc809cee12ce17b6"},"schema_version":"1.0","source":{"id":"1804.00163","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.00163","created_at":"2026-05-18T00:19:38Z"},{"alias_kind":"arxiv_version","alias_value":"1804.00163v1","created_at":"2026-05-18T00:19:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.00163","created_at":"2026-05-18T00:19:38Z"},{"alias_kind":"pith_short_12","alias_value":"AQUH5UEE2NQS","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_16","alias_value":"AQUH5UEE2NQSI52D","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_8","alias_value":"AQUH5UEE","created_at":"2026-05-18T12:32:13Z"}],"graph_snapshots":[{"event_id":"sha256:e316ea29e30923f2f73ef2ce121a2752999efd76af809f1c3264e263ce2d96e1","target":"graph","created_at":"2026-05-18T00:19:38Z","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"},"paper":{"abstract_excerpt":"Detection of gravitational waves(GW) involves using the network of GW telescopes to observe a large sky region. However, owing to the arrangement of the GW telescopes, even with aLIGO- aVirgo-KAGRA network,parameter estimation accuracy deteriorates depending on the sky region of the GW source due to the ill-posed nature of the inverse operator. A regularization-based method is proposed herein to improve parameter estimation accuracy. Although conventional regularization methods cannot optimize all regulator parameters completely, the proposed method archives full optimization by applying an a-","authors_text":"Kazuhiro Hayama, Kenji Ono","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-03-31T12:15:01Z","title":"Bias-free parameter estimation depending on sky region for targeted gravitational wave"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.00163","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":"sha256:79db6b1bf514b4eaea60d358d5f2643e551b49262b5174d1b917d818c526b96d","target":"record","created_at":"2026-05-18T00:19:38Z","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":"a64e00d035aa6ce0a35dce1424f6e7689781a4ee3a78368f2dc89c8be3d306db","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-03-31T12:15:01Z","title_canon_sha256":"6f24bf625712fb3b8c360068aa111687a446ab636a01c518fc809cee12ce17b6"},"schema_version":"1.0","source":{"id":"1804.00163","kind":"arxiv","version":1}},"canonical_sha256":"04287ed084d361247743efda13f70a2045d873f8a02f57c8658b5741aaefc292","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"04287ed084d361247743efda13f70a2045d873f8a02f57c8658b5741aaefc292","first_computed_at":"2026-05-18T00:19:38.169831Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:19:38.169831Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wbCBqLKBXugX2mp9ilyFB0EWdbTJA941JhEi02b99p0kDycI+HeRQDHZKl6fA4tz+VQs3K5mewa1D/0KnnomAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:19:38.170526Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.00163","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:79db6b1bf514b4eaea60d358d5f2643e551b49262b5174d1b917d818c526b96d","sha256:e316ea29e30923f2f73ef2ce121a2752999efd76af809f1c3264e263ce2d96e1"],"state_sha256":"eae33df26642772ef97341ca780a47803e6aab7ae3fcadba5229bfbcbe2bcb3d"}