{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:2HPN3Y36GAKQRTWLBRYYM25QFH","short_pith_number":"pith:2HPN3Y36","canonical_record":{"source":{"id":"2105.00253","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-05-01T14:06:24Z","cross_cats_sorted":[],"title_canon_sha256":"75a5ee674b835c914f561c20d99fb37854fed0207cf47885b040e33a9aad922b","abstract_canon_sha256":"c5fcafadce87fb9f9254efefed05de1a4e6de159de857f4d25e5a0050a84c878"},"schema_version":"1.0"},"canonical_sha256":"d1dedde37e301508cecb0c71866bb029c20c990f294f21251452603e3154b1fa","source":{"kind":"arxiv","id":"2105.00253","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2105.00253","created_at":"2026-07-05T04:17:58Z"},{"alias_kind":"arxiv_version","alias_value":"2105.00253v2","created_at":"2026-07-05T04:17:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2105.00253","created_at":"2026-07-05T04:17:58Z"},{"alias_kind":"pith_short_12","alias_value":"2HPN3Y36GAKQ","created_at":"2026-07-05T04:17:58Z"},{"alias_kind":"pith_short_16","alias_value":"2HPN3Y36GAKQRTWL","created_at":"2026-07-05T04:17:58Z"},{"alias_kind":"pith_short_8","alias_value":"2HPN3Y36","created_at":"2026-07-05T04:17:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:2HPN3Y36GAKQRTWLBRYYM25QFH","target":"record","payload":{"canonical_record":{"source":{"id":"2105.00253","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-05-01T14:06:24Z","cross_cats_sorted":[],"title_canon_sha256":"75a5ee674b835c914f561c20d99fb37854fed0207cf47885b040e33a9aad922b","abstract_canon_sha256":"c5fcafadce87fb9f9254efefed05de1a4e6de159de857f4d25e5a0050a84c878"},"schema_version":"1.0"},"canonical_sha256":"d1dedde37e301508cecb0c71866bb029c20c990f294f21251452603e3154b1fa","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:17:58.759218Z","signature_b64":"7E579tbWhcF0Sez3jREqOKKTOeleO+tQSl5xD57QTRUv1gSboVSjuX74Bum4S7FaBDn5Cc/fOKEhmi9+DAybAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d1dedde37e301508cecb0c71866bb029c20c990f294f21251452603e3154b1fa","last_reissued_at":"2026-07-05T04:17:58.758823Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:17:58.758823Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2105.00253","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":"2026-07-05T04:17:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vQwgSjWADo94215XLQ5y04a25f6yV7mQm+8l1soq90Q0kHptkpKtxP/Cf0fFvbedM9l4BRamnPQ1QS+MzKTXDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T21:51:38.095470Z"},"content_sha256":"dceb50b31a3c5528720433818f31d4e5a44f85e16e396186ee2a1bc0b6324fc3","schema_version":"1.0","event_id":"sha256:dceb50b31a3c5528720433818f31d4e5a44f85e16e396186ee2a1bc0b6324fc3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:2HPN3Y36GAKQRTWLBRYYM25QFH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Scalar-tensor mixed polarization search of gravitational waves","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Atsushi Nishizawa, Hiroki Takeda, Soichiro Morisaki","submitted_at":"2021-05-01T14:06:24Z","abstract_excerpt":"An additional scalar degree of freedom for a gravitational wave is often predicted in theories of gravity beyond general relativity and can be used for a model-agnostic test of gravity. In this letter, we report the direct search for the scalar-tensor mixed polarization modes of gravitational waves from compact binaries in a strong regime of gravity by analyzing the data of GW170814 and GW170817, which are the merger events of binary black holes and binary neutron stars, respectively. Consequently, we obtain the constraints on the ratio of scalar-mode amplitude to tensor-mode amplitude: $\\less"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2105.00253","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2105.00253/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T04:17:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MuUdEW7G8GJuQ3wNu9iDejvyuSq1GTPwHPem1jqfxAEz7lrDjulatqbwlWSh2Aa0oOP2IduuOFPFySsXhsbeCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T21:51:38.096057Z"},"content_sha256":"8ce2ca11102690d25e742eba7c38c8687eae5391090742a7382a22a4fb471de8","schema_version":"1.0","event_id":"sha256:8ce2ca11102690d25e742eba7c38c8687eae5391090742a7382a22a4fb471de8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2HPN3Y36GAKQRTWLBRYYM25QFH/bundle.json","state_url":"https://pith.science/pith/2HPN3Y36GAKQRTWLBRYYM25QFH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2HPN3Y36GAKQRTWLBRYYM25QFH/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":"2026-08-06T21:51:38Z","links":{"resolver":"https://pith.science/pith/2HPN3Y36GAKQRTWLBRYYM25QFH","bundle":"https://pith.science/pith/2HPN3Y36GAKQRTWLBRYYM25QFH/bundle.json","state":"https://pith.science/pith/2HPN3Y36GAKQRTWLBRYYM25QFH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2HPN3Y36GAKQRTWLBRYYM25QFH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:2HPN3Y36GAKQRTWLBRYYM25QFH","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":"c5fcafadce87fb9f9254efefed05de1a4e6de159de857f4d25e5a0050a84c878","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-05-01T14:06:24Z","title_canon_sha256":"75a5ee674b835c914f561c20d99fb37854fed0207cf47885b040e33a9aad922b"},"schema_version":"1.0","source":{"id":"2105.00253","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2105.00253","created_at":"2026-07-05T04:17:58Z"},{"alias_kind":"arxiv_version","alias_value":"2105.00253v2","created_at":"2026-07-05T04:17:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2105.00253","created_at":"2026-07-05T04:17:58Z"},{"alias_kind":"pith_short_12","alias_value":"2HPN3Y36GAKQ","created_at":"2026-07-05T04:17:58Z"},{"alias_kind":"pith_short_16","alias_value":"2HPN3Y36GAKQRTWL","created_at":"2026-07-05T04:17:58Z"},{"alias_kind":"pith_short_8","alias_value":"2HPN3Y36","created_at":"2026-07-05T04:17:58Z"}],"graph_snapshots":[{"event_id":"sha256:8ce2ca11102690d25e742eba7c38c8687eae5391090742a7382a22a4fb471de8","target":"graph","created_at":"2026-07-05T04:17:58Z","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/2105.00253/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"An additional scalar degree of freedom for a gravitational wave is often predicted in theories of gravity beyond general relativity and can be used for a model-agnostic test of gravity. In this letter, we report the direct search for the scalar-tensor mixed polarization modes of gravitational waves from compact binaries in a strong regime of gravity by analyzing the data of GW170814 and GW170817, which are the merger events of binary black holes and binary neutron stars, respectively. Consequently, we obtain the constraints on the ratio of scalar-mode amplitude to tensor-mode amplitude: $\\less","authors_text":"Atsushi Nishizawa, Hiroki Takeda, Soichiro Morisaki","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-05-01T14:06:24Z","title":"Scalar-tensor mixed polarization search of gravitational waves"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2105.00253","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:dceb50b31a3c5528720433818f31d4e5a44f85e16e396186ee2a1bc0b6324fc3","target":"record","created_at":"2026-07-05T04:17:58Z","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":"c5fcafadce87fb9f9254efefed05de1a4e6de159de857f4d25e5a0050a84c878","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-05-01T14:06:24Z","title_canon_sha256":"75a5ee674b835c914f561c20d99fb37854fed0207cf47885b040e33a9aad922b"},"schema_version":"1.0","source":{"id":"2105.00253","kind":"arxiv","version":2}},"canonical_sha256":"d1dedde37e301508cecb0c71866bb029c20c990f294f21251452603e3154b1fa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d1dedde37e301508cecb0c71866bb029c20c990f294f21251452603e3154b1fa","first_computed_at":"2026-07-05T04:17:58.758823Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:17:58.758823Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7E579tbWhcF0Sez3jREqOKKTOeleO+tQSl5xD57QTRUv1gSboVSjuX74Bum4S7FaBDn5Cc/fOKEhmi9+DAybAA==","signature_status":"signed_v1","signed_at":"2026-07-05T04:17:58.759218Z","signed_message":"canonical_sha256_bytes"},"source_id":"2105.00253","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dceb50b31a3c5528720433818f31d4e5a44f85e16e396186ee2a1bc0b6324fc3","sha256:8ce2ca11102690d25e742eba7c38c8687eae5391090742a7382a22a4fb471de8"],"state_sha256":"18699c68e4ebbeced76a15ccf269ef57bbc11fcb51cf99fac5ff429f0efac86f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"J2lYmj4iY54Fdp5E6Cb0S+pwO4EZj6vGuwK14zEDUb7jiyYjVRI1lwQJKxgtpwEoPH7Dkp30Tzfh6W7sGP+XCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T21:51:38.100523Z","bundle_sha256":"1700870a4f37694d39c22b4bf609235f9b88514bf640eed4b4e26b0b0f1c490d"}}