{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:UCXJM2F5BLLPDWNKCOTZBN5J5A","short_pith_number":"pith:UCXJM2F5","canonical_record":{"source":{"id":"1305.5714","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-05-24T12:45:18Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"6f261d4abaec28385f96d82cbeace86561ddaa9f5d6cc192077aa804fee1a29c","abstract_canon_sha256":"11ae73d81f08ada139fd89a3161a8941563426e580283d05c8328d9687ef79e1"},"schema_version":"1.0"},"canonical_sha256":"a0ae9668bd0ad6f1d9aa13a790b7a9e835b540d843e5425fe44643ac6850ccdd","source":{"kind":"arxiv","id":"1305.5714","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1305.5714","created_at":"2026-05-18T03:11:46Z"},{"alias_kind":"arxiv_version","alias_value":"1305.5714v3","created_at":"2026-05-18T03:11:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.5714","created_at":"2026-05-18T03:11:46Z"},{"alias_kind":"pith_short_12","alias_value":"UCXJM2F5BLLP","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_16","alias_value":"UCXJM2F5BLLPDWNK","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_8","alias_value":"UCXJM2F5","created_at":"2026-05-18T12:28:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:UCXJM2F5BLLPDWNKCOTZBN5J5A","target":"record","payload":{"canonical_record":{"source":{"id":"1305.5714","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-05-24T12:45:18Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"6f261d4abaec28385f96d82cbeace86561ddaa9f5d6cc192077aa804fee1a29c","abstract_canon_sha256":"11ae73d81f08ada139fd89a3161a8941563426e580283d05c8328d9687ef79e1"},"schema_version":"1.0"},"canonical_sha256":"a0ae9668bd0ad6f1d9aa13a790b7a9e835b540d843e5425fe44643ac6850ccdd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:11:46.597079Z","signature_b64":"i61tBua/T3SXKaHORSB+ZFarRi2d8VPbmHJomsD6OdkOs1u1KByp0fKYUI0PUz1fKP03a+ggKl2V/2zm3wZYCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a0ae9668bd0ad6f1d9aa13a790b7a9e835b540d843e5425fe44643ac6850ccdd","last_reissued_at":"2026-05-18T03:11:46.596329Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:11:46.596329Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1305.5714","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:11:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HWihOZ2KTyt+ZnRmZjWXehoYomO957gl9TXB4pEveWTYhSaB9/88Yx6M5cQt7pHgRefyHnDYlahJ8CV47GuLCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T03:50:17.892364Z"},"content_sha256":"1b792bd68cda459fe3a4224054a52ccf5809933967c7a33007da0a686419fa5a","schema_version":"1.0","event_id":"sha256:1b792bd68cda459fe3a4224054a52ccf5809933967c7a33007da0a686419fa5a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:UCXJM2F5BLLPDWNKCOTZBN5J5A","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Gravitational-Wave Detection using Multivariate Analysis","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"gr-qc","authors_text":"Ariana Minot, Duncan Meacher, Gareth Jones, James Clark, Patrick J. Sutton, Thomas S. Adams","submitted_at":"2013-05-24T12:45:18Z","abstract_excerpt":"Searches for gravitational-wave bursts (transient signals, typically of unknown waveform) require identification of weak signals in background detector noise. The sensitivity of such searches is often critically limited by non-Gaussian noise fluctuations which are difficult to distinguish from real signals, posing a key problem for transient gravitational-wave astronomy. Current noise rejection tests are based on the analysis of a relatively small number of measured properties of the candidate signal, typically correlations between detectors. Multivariate analysis (MVA) techniques probe the fu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.5714","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:11:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"x95JbSLZz01bGw6nU4wQeR/Vh1KapZYMHccEyRaP8G0A1ioLoEkhM1TO9N1kY2GwwqDka7WOZz9L7Hrn9zjOCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T03:50:17.893039Z"},"content_sha256":"4b6a515aab1a502ad0c1626d81681f210e71e67241d13d575d2a41cd4a626ada","schema_version":"1.0","event_id":"sha256:4b6a515aab1a502ad0c1626d81681f210e71e67241d13d575d2a41cd4a626ada"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UCXJM2F5BLLPDWNKCOTZBN5J5A/bundle.json","state_url":"https://pith.science/pith/UCXJM2F5BLLPDWNKCOTZBN5J5A/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UCXJM2F5BLLPDWNKCOTZBN5J5A/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":"2026-05-30T03:50:17Z","links":{"resolver":"https://pith.science/pith/UCXJM2F5BLLPDWNKCOTZBN5J5A","bundle":"https://pith.science/pith/UCXJM2F5BLLPDWNKCOTZBN5J5A/bundle.json","state":"https://pith.science/pith/UCXJM2F5BLLPDWNKCOTZBN5J5A/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UCXJM2F5BLLPDWNKCOTZBN5J5A/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:UCXJM2F5BLLPDWNKCOTZBN5J5A","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":"11ae73d81f08ada139fd89a3161a8941563426e580283d05c8328d9687ef79e1","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-05-24T12:45:18Z","title_canon_sha256":"6f261d4abaec28385f96d82cbeace86561ddaa9f5d6cc192077aa804fee1a29c"},"schema_version":"1.0","source":{"id":"1305.5714","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1305.5714","created_at":"2026-05-18T03:11:46Z"},{"alias_kind":"arxiv_version","alias_value":"1305.5714v3","created_at":"2026-05-18T03:11:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.5714","created_at":"2026-05-18T03:11:46Z"},{"alias_kind":"pith_short_12","alias_value":"UCXJM2F5BLLP","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_16","alias_value":"UCXJM2F5BLLPDWNK","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_8","alias_value":"UCXJM2F5","created_at":"2026-05-18T12:28:02Z"}],"graph_snapshots":[{"event_id":"sha256:4b6a515aab1a502ad0c1626d81681f210e71e67241d13d575d2a41cd4a626ada","target":"graph","created_at":"2026-05-18T03:11:46Z","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":"Searches for gravitational-wave bursts (transient signals, typically of unknown waveform) require identification of weak signals in background detector noise. The sensitivity of such searches is often critically limited by non-Gaussian noise fluctuations which are difficult to distinguish from real signals, posing a key problem for transient gravitational-wave astronomy. Current noise rejection tests are based on the analysis of a relatively small number of measured properties of the candidate signal, typically correlations between detectors. Multivariate analysis (MVA) techniques probe the fu","authors_text":"Ariana Minot, Duncan Meacher, Gareth Jones, James Clark, Patrick J. Sutton, Thomas S. Adams","cross_cats":["astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-05-24T12:45:18Z","title":"Gravitational-Wave Detection using Multivariate Analysis"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.5714","kind":"arxiv","version":3},"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":"sha256:1b792bd68cda459fe3a4224054a52ccf5809933967c7a33007da0a686419fa5a","target":"record","created_at":"2026-05-18T03:11:46Z","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":"11ae73d81f08ada139fd89a3161a8941563426e580283d05c8328d9687ef79e1","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-05-24T12:45:18Z","title_canon_sha256":"6f261d4abaec28385f96d82cbeace86561ddaa9f5d6cc192077aa804fee1a29c"},"schema_version":"1.0","source":{"id":"1305.5714","kind":"arxiv","version":3}},"canonical_sha256":"a0ae9668bd0ad6f1d9aa13a790b7a9e835b540d843e5425fe44643ac6850ccdd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a0ae9668bd0ad6f1d9aa13a790b7a9e835b540d843e5425fe44643ac6850ccdd","first_computed_at":"2026-05-18T03:11:46.596329Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:11:46.596329Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"i61tBua/T3SXKaHORSB+ZFarRi2d8VPbmHJomsD6OdkOs1u1KByp0fKYUI0PUz1fKP03a+ggKl2V/2zm3wZYCA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:11:46.597079Z","signed_message":"canonical_sha256_bytes"},"source_id":"1305.5714","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1b792bd68cda459fe3a4224054a52ccf5809933967c7a33007da0a686419fa5a","sha256:4b6a515aab1a502ad0c1626d81681f210e71e67241d13d575d2a41cd4a626ada"],"state_sha256":"3e33b307ab18fde62d9eb1ee4c0080b1b61a19267ac6ec9e88363632a68bc377"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"p8Jee8nsMsqVcssZ35VKroZNgH/GdDVuiLhSlQJZXeULaNEoZcALpaYhqZQ6PlVSRgynfBkxJYG7N56NWgS/CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T03:50:17.896289Z","bundle_sha256":"10dee199fd13608678250f6d5d8a7a770bf2ac6cd0940ce66cc744a2f5e6bcfb"}}