{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:M7UCF277XCQ5ZGWKNMPTRDHHDG","short_pith_number":"pith:M7UCF277","canonical_record":{"source":{"id":"1903.02638","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-03-06T22:30:27Z","cross_cats_sorted":[],"title_canon_sha256":"a9af9cf5ab146d1395e8f08d7986cbd100e47ba85e57b1ce5930cb9d84924dbd","abstract_canon_sha256":"f6919bf7a3166a4ea03121051eb3a30af369b5cf88f85c2644236156593a51b6"},"schema_version":"1.0"},"canonical_sha256":"67e822ebffb8a1dc9aca6b1f388ce7199927886f46428c16b39c86fe0657bfbc","source":{"kind":"arxiv","id":"1903.02638","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.02638","created_at":"2026-05-17T23:39:44Z"},{"alias_kind":"arxiv_version","alias_value":"1903.02638v2","created_at":"2026-05-17T23:39:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.02638","created_at":"2026-05-17T23:39:44Z"},{"alias_kind":"pith_short_12","alias_value":"M7UCF277XCQ5","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"M7UCF277XCQ5ZGWK","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"M7UCF277","created_at":"2026-05-18T12:33:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:M7UCF277XCQ5ZGWKNMPTRDHHDG","target":"record","payload":{"canonical_record":{"source":{"id":"1903.02638","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-03-06T22:30:27Z","cross_cats_sorted":[],"title_canon_sha256":"a9af9cf5ab146d1395e8f08d7986cbd100e47ba85e57b1ce5930cb9d84924dbd","abstract_canon_sha256":"f6919bf7a3166a4ea03121051eb3a30af369b5cf88f85c2644236156593a51b6"},"schema_version":"1.0"},"canonical_sha256":"67e822ebffb8a1dc9aca6b1f388ce7199927886f46428c16b39c86fe0657bfbc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:39:44.981684Z","signature_b64":"9ugnLbfCNoHtX07BsLsuooQ8B/yaZ2tZ1C65aWpq6Ls7YrjZsACrc1OWeGMhweu2VpcWAZs/Oa7BrXDic3vZDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"67e822ebffb8a1dc9aca6b1f388ce7199927886f46428c16b39c86fe0657bfbc","last_reissued_at":"2026-05-17T23:39:44.980981Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:39:44.980981Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1903.02638","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:39:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lGeLLSf/K8bst6DYj6mKetuyijXuJ3PzieWUto8BY3K4uVCAWBkq9j1c5Bd1RDWywQJEtMVRvvkx26WpZQBJDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T08:38:35.111640Z"},"content_sha256":"21faec72e9a43599d41b98d89954f706e85026aa0687c9d99c618609e7aef015","schema_version":"1.0","event_id":"sha256:21faec72e9a43599d41b98d89954f706e85026aa0687c9d99c618609e7aef015"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:M7UCF277XCQ5ZGWKNMPTRDHHDG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Search strategies for long gravitational-wave transients: hidden Markov model tracking and seedless clustering","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Andrew Melatos, Ling Sun, Michael W. Coughlin, Sharan Banagiri","submitted_at":"2019-03-06T22:30:27Z","abstract_excerpt":"A number of detections have been made in the past few years of gravitational waves from compact binary coalescences. While there exist well-understood waveform models for signals from compact binary coalescences, many sources of gravitational waves are not well modeled, including potential long-transient signals from a binary neutron star post-merger remnant. Searching for these sources requires robust detection algorithms that make minimal assumptions about any potential signals. In this paper, we compare two unmodeled search schemes for long-transient gravitational waves, operating on cross-"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.02638","kind":"arxiv","version":2},"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:39:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"S7PkTwuvth2mvD5l9904YT/qSDXpP6A23AP8LEkrH5uv9wefWspHwizP+E3lBif5CEpEZCmwc7d3ANP80Z6gDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T08:38:35.112295Z"},"content_sha256":"3182f90ce627ad2f35b8e93b5a6fa6ad14480542515775756219349c0f46de4d","schema_version":"1.0","event_id":"sha256:3182f90ce627ad2f35b8e93b5a6fa6ad14480542515775756219349c0f46de4d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/M7UCF277XCQ5ZGWKNMPTRDHHDG/bundle.json","state_url":"https://pith.science/pith/M7UCF277XCQ5ZGWKNMPTRDHHDG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/M7UCF277XCQ5ZGWKNMPTRDHHDG/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-27T08:38:35Z","links":{"resolver":"https://pith.science/pith/M7UCF277XCQ5ZGWKNMPTRDHHDG","bundle":"https://pith.science/pith/M7UCF277XCQ5ZGWKNMPTRDHHDG/bundle.json","state":"https://pith.science/pith/M7UCF277XCQ5ZGWKNMPTRDHHDG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/M7UCF277XCQ5ZGWKNMPTRDHHDG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:M7UCF277XCQ5ZGWKNMPTRDHHDG","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":"f6919bf7a3166a4ea03121051eb3a30af369b5cf88f85c2644236156593a51b6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-03-06T22:30:27Z","title_canon_sha256":"a9af9cf5ab146d1395e8f08d7986cbd100e47ba85e57b1ce5930cb9d84924dbd"},"schema_version":"1.0","source":{"id":"1903.02638","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.02638","created_at":"2026-05-17T23:39:44Z"},{"alias_kind":"arxiv_version","alias_value":"1903.02638v2","created_at":"2026-05-17T23:39:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.02638","created_at":"2026-05-17T23:39:44Z"},{"alias_kind":"pith_short_12","alias_value":"M7UCF277XCQ5","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"M7UCF277XCQ5ZGWK","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"M7UCF277","created_at":"2026-05-18T12:33:21Z"}],"graph_snapshots":[{"event_id":"sha256:3182f90ce627ad2f35b8e93b5a6fa6ad14480542515775756219349c0f46de4d","target":"graph","created_at":"2026-05-17T23:39:44Z","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":"A number of detections have been made in the past few years of gravitational waves from compact binary coalescences. While there exist well-understood waveform models for signals from compact binary coalescences, many sources of gravitational waves are not well modeled, including potential long-transient signals from a binary neutron star post-merger remnant. Searching for these sources requires robust detection algorithms that make minimal assumptions about any potential signals. In this paper, we compare two unmodeled search schemes for long-transient gravitational waves, operating on cross-","authors_text":"Andrew Melatos, Ling Sun, Michael W. Coughlin, Sharan Banagiri","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-03-06T22:30:27Z","title":"Search strategies for long gravitational-wave transients: hidden Markov model tracking and seedless clustering"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.02638","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":"sha256:21faec72e9a43599d41b98d89954f706e85026aa0687c9d99c618609e7aef015","target":"record","created_at":"2026-05-17T23:39:44Z","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":"f6919bf7a3166a4ea03121051eb3a30af369b5cf88f85c2644236156593a51b6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-03-06T22:30:27Z","title_canon_sha256":"a9af9cf5ab146d1395e8f08d7986cbd100e47ba85e57b1ce5930cb9d84924dbd"},"schema_version":"1.0","source":{"id":"1903.02638","kind":"arxiv","version":2}},"canonical_sha256":"67e822ebffb8a1dc9aca6b1f388ce7199927886f46428c16b39c86fe0657bfbc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"67e822ebffb8a1dc9aca6b1f388ce7199927886f46428c16b39c86fe0657bfbc","first_computed_at":"2026-05-17T23:39:44.980981Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:39:44.980981Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9ugnLbfCNoHtX07BsLsuooQ8B/yaZ2tZ1C65aWpq6Ls7YrjZsACrc1OWeGMhweu2VpcWAZs/Oa7BrXDic3vZDQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:39:44.981684Z","signed_message":"canonical_sha256_bytes"},"source_id":"1903.02638","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:21faec72e9a43599d41b98d89954f706e85026aa0687c9d99c618609e7aef015","sha256:3182f90ce627ad2f35b8e93b5a6fa6ad14480542515775756219349c0f46de4d"],"state_sha256":"7673b65d9f5e40da49f070749886b9f0d869e312ad9cc800d2822599684455c2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6baLgMmN/xzNEwEAW13dCVJDx//BoZABoJf+M+xLnkjb6q9kLkGWmYTBxE02CNHcZShrWLyb2d5Ma3OVw6WcBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T08:38:35.115370Z","bundle_sha256":"aad44822a6fbcbbf0789fc326ea1d79f27c7c8e20f7ca43c544f151476d3eac6"}}