{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:M75PR7X6C3VYTTGMEYLVWDEAED","short_pith_number":"pith:M75PR7X6","canonical_record":{"source":{"id":"1701.05808","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2017-01-20T14:39:34Z","cross_cats_sorted":[],"title_canon_sha256":"3dbacd0a5b01d5d2d4317f74bb2159ca0404d4b0fa5a590247d6b5a15ee01712","abstract_canon_sha256":"13e968887f83a570ee295369f9f4dcfded3e0be5178aefb3b119365144d87ddc"},"schema_version":"1.0"},"canonical_sha256":"67faf8fefe16eb89cccc26175b0c8020fee3c82cfa80ec0ee52594ae6fb18570","source":{"kind":"arxiv","id":"1701.05808","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1701.05808","created_at":"2026-05-18T00:45:35Z"},{"alias_kind":"arxiv_version","alias_value":"1701.05808v1","created_at":"2026-05-18T00:45:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.05808","created_at":"2026-05-18T00:45:35Z"},{"alias_kind":"pith_short_12","alias_value":"M75PR7X6C3VY","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_16","alias_value":"M75PR7X6C3VYTTGM","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_8","alias_value":"M75PR7X6","created_at":"2026-05-18T12:31:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:M75PR7X6C3VYTTGMEYLVWDEAED","target":"record","payload":{"canonical_record":{"source":{"id":"1701.05808","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2017-01-20T14:39:34Z","cross_cats_sorted":[],"title_canon_sha256":"3dbacd0a5b01d5d2d4317f74bb2159ca0404d4b0fa5a590247d6b5a15ee01712","abstract_canon_sha256":"13e968887f83a570ee295369f9f4dcfded3e0be5178aefb3b119365144d87ddc"},"schema_version":"1.0"},"canonical_sha256":"67faf8fefe16eb89cccc26175b0c8020fee3c82cfa80ec0ee52594ae6fb18570","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:45:35.833596Z","signature_b64":"ICItiGx904hEtx5aKWRJ8oWbZmVgGkiHDCO3uVx/XnNuMEE9vh6tPlrqj0UMDBEFlNo2LWfYTT8Puc653naIDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"67faf8fefe16eb89cccc26175b0c8020fee3c82cfa80ec0ee52594ae6fb18570","last_reissued_at":"2026-05-18T00:45:35.832152Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:45:35.832152Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1701.05808","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:45:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"i+2fgwKLgcTRFkmai09cqPuUB21M1RR3Hbi6HIaMQIdLPl0jKxKXO3r3blkbBpz3YTM/5cYYhAuA6+Zh07OZBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T08:14:25.052034Z"},"content_sha256":"ae8a936fc7de8d6f1b15bc07ca5fe8afe3df4df51bdf4d2ca8b5ed2149259adf","schema_version":"1.0","event_id":"sha256:ae8a936fc7de8d6f1b15bc07ca5fe8afe3df4df51bdf4d2ca8b5ed2149259adf"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:M75PR7X6C3VYTTGMEYLVWDEAED","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Black hole spectroscopy with coherent mode stacking","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Frans Pretorius, Huan Yang, Jonathan Blackman, Kent Yagi, Luis Lehner, Nicolas Yunes, Vasileios Paschalidis","submitted_at":"2017-01-20T14:39:34Z","abstract_excerpt":"The measurement of multiple ringdown modes in gravitational waves from binary black hole mergers will allow for testing fundamental properties of black holes in General Relativity, and to constrain modified theories of gravity. To enhance the ability of Advanced LIGO/Virgo to perform such tasks, we propose a coherent mode stacking method to search for a chosen target mode within a collection of multiple merger events. We first rescale each signal so that the target mode in each of them has the same frequency, and then sum the waveforms constructively. A crucial element to realize this coherent"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.05808","kind":"arxiv","version":1},"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":"2026-05-18T00:45:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KIvy1fXE6fI5GXN1MdhUDFLYcxJs6j6J9BUi+2NrH7u9SQRou9LyPMU4nCHr8DwR9sCBHdA5BOSMrTWbdtyTDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T08:14:25.052391Z"},"content_sha256":"4ff682d7d2307510f1842b7746cf1e4d124548a5cf74be31c5cc0eec241bbe44","schema_version":"1.0","event_id":"sha256:4ff682d7d2307510f1842b7746cf1e4d124548a5cf74be31c5cc0eec241bbe44"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/M75PR7X6C3VYTTGMEYLVWDEAED/bundle.json","state_url":"https://pith.science/pith/M75PR7X6C3VYTTGMEYLVWDEAED/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/M75PR7X6C3VYTTGMEYLVWDEAED/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":"2026-05-28T08:14:25Z","links":{"resolver":"https://pith.science/pith/M75PR7X6C3VYTTGMEYLVWDEAED","bundle":"https://pith.science/pith/M75PR7X6C3VYTTGMEYLVWDEAED/bundle.json","state":"https://pith.science/pith/M75PR7X6C3VYTTGMEYLVWDEAED/state.json","well_known_bundle":"https://pith.science/.well-known/pith/M75PR7X6C3VYTTGMEYLVWDEAED/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:M75PR7X6C3VYTTGMEYLVWDEAED","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":"13e968887f83a570ee295369f9f4dcfded3e0be5178aefb3b119365144d87ddc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2017-01-20T14:39:34Z","title_canon_sha256":"3dbacd0a5b01d5d2d4317f74bb2159ca0404d4b0fa5a590247d6b5a15ee01712"},"schema_version":"1.0","source":{"id":"1701.05808","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1701.05808","created_at":"2026-05-18T00:45:35Z"},{"alias_kind":"arxiv_version","alias_value":"1701.05808v1","created_at":"2026-05-18T00:45:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.05808","created_at":"2026-05-18T00:45:35Z"},{"alias_kind":"pith_short_12","alias_value":"M75PR7X6C3VY","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_16","alias_value":"M75PR7X6C3VYTTGM","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_8","alias_value":"M75PR7X6","created_at":"2026-05-18T12:31:31Z"}],"graph_snapshots":[{"event_id":"sha256:4ff682d7d2307510f1842b7746cf1e4d124548a5cf74be31c5cc0eec241bbe44","target":"graph","created_at":"2026-05-18T00:45:35Z","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":"The measurement of multiple ringdown modes in gravitational waves from binary black hole mergers will allow for testing fundamental properties of black holes in General Relativity, and to constrain modified theories of gravity. To enhance the ability of Advanced LIGO/Virgo to perform such tasks, we propose a coherent mode stacking method to search for a chosen target mode within a collection of multiple merger events. We first rescale each signal so that the target mode in each of them has the same frequency, and then sum the waveforms constructively. A crucial element to realize this coherent","authors_text":"Frans Pretorius, Huan Yang, Jonathan Blackman, Kent Yagi, Luis Lehner, Nicolas Yunes, Vasileios Paschalidis","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2017-01-20T14:39:34Z","title":"Black hole spectroscopy with coherent mode stacking"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.05808","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:ae8a936fc7de8d6f1b15bc07ca5fe8afe3df4df51bdf4d2ca8b5ed2149259adf","target":"record","created_at":"2026-05-18T00:45:35Z","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":"13e968887f83a570ee295369f9f4dcfded3e0be5178aefb3b119365144d87ddc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2017-01-20T14:39:34Z","title_canon_sha256":"3dbacd0a5b01d5d2d4317f74bb2159ca0404d4b0fa5a590247d6b5a15ee01712"},"schema_version":"1.0","source":{"id":"1701.05808","kind":"arxiv","version":1}},"canonical_sha256":"67faf8fefe16eb89cccc26175b0c8020fee3c82cfa80ec0ee52594ae6fb18570","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"67faf8fefe16eb89cccc26175b0c8020fee3c82cfa80ec0ee52594ae6fb18570","first_computed_at":"2026-05-18T00:45:35.832152Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:45:35.832152Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ICItiGx904hEtx5aKWRJ8oWbZmVgGkiHDCO3uVx/XnNuMEE9vh6tPlrqj0UMDBEFlNo2LWfYTT8Puc653naIDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:45:35.833596Z","signed_message":"canonical_sha256_bytes"},"source_id":"1701.05808","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ae8a936fc7de8d6f1b15bc07ca5fe8afe3df4df51bdf4d2ca8b5ed2149259adf","sha256:4ff682d7d2307510f1842b7746cf1e4d124548a5cf74be31c5cc0eec241bbe44"],"state_sha256":"4a89989a5ade1dc0b8d4d12d934cfab5acd67552d7d9bf209431599c50b8d84a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ERBJG+Xa2SUOTKSbspBgH6O/nBsUyCW0ikmjCOUOoGMylHG0iHqu6PQjy8S7bs3ilRYOO99wE5cxxoboXHY2DA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T08:14:25.054353Z","bundle_sha256":"a62160ab076ef3323ef1d47a05bee0a6ee469ddd094ee5855588ac3ae32f5cab"}}