{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:WB72DKHZ3U75ANSNHG73N2AZ4G","short_pith_number":"pith:WB72DKHZ","canonical_record":{"source":{"id":"2104.06047","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-04-13T09:21:43Z","cross_cats_sorted":[],"title_canon_sha256":"2c62e8316ec0cac220c35bbc148ca191792bdc11a9d8ec6fd782eab14bea040c","abstract_canon_sha256":"df426777ffbb4e670cd9f76f9ce8126255a9ff204ab2f00d052fd3e7467b4dbd"},"schema_version":"1.0"},"canonical_sha256":"b07fa1a8f9dd3fd0364d39bfb6e819e182d0001887fe42f90a8e96c6f518f1fe","source":{"kind":"arxiv","id":"2104.06047","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2104.06047","created_at":"2026-07-05T03:11:12Z"},{"alias_kind":"arxiv_version","alias_value":"2104.06047v2","created_at":"2026-07-05T03:11:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2104.06047","created_at":"2026-07-05T03:11:12Z"},{"alias_kind":"pith_short_12","alias_value":"WB72DKHZ3U75","created_at":"2026-07-05T03:11:12Z"},{"alias_kind":"pith_short_16","alias_value":"WB72DKHZ3U75ANSN","created_at":"2026-07-05T03:11:12Z"},{"alias_kind":"pith_short_8","alias_value":"WB72DKHZ","created_at":"2026-07-05T03:11:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:WB72DKHZ3U75ANSNHG73N2AZ4G","target":"record","payload":{"canonical_record":{"source":{"id":"2104.06047","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-04-13T09:21:43Z","cross_cats_sorted":[],"title_canon_sha256":"2c62e8316ec0cac220c35bbc148ca191792bdc11a9d8ec6fd782eab14bea040c","abstract_canon_sha256":"df426777ffbb4e670cd9f76f9ce8126255a9ff204ab2f00d052fd3e7467b4dbd"},"schema_version":"1.0"},"canonical_sha256":"b07fa1a8f9dd3fd0364d39bfb6e819e182d0001887fe42f90a8e96c6f518f1fe","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:11:12.363108Z","signature_b64":"nTOaY8iKqPfMZLdnT6HJI2a1lX6SPAUlOus2M0Dg2g2+w6nlqZozkUZlteuWr14WsXuZEDAKDPt3dPtPPMOqDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b07fa1a8f9dd3fd0364d39bfb6e819e182d0001887fe42f90a8e96c6f518f1fe","last_reissued_at":"2026-07-05T03:11:12.362647Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:11:12.362647Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2104.06047","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":"2026-07-05T03:11:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"17SfSyFtFK9XqzHtl++FQOjQxFJolpE7gnawMyOXgza1rbcKvHDVw0OnLX0AC+c3iuLhb6DwAKAEvev0K3ttCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-31T17:47:50.614975Z"},"content_sha256":"eda50ea9bee83ad0cd2eb46aaede49991cb4d805c519679f8883d1a0125b2388","schema_version":"1.0","event_id":"sha256:eda50ea9bee83ad0cd2eb46aaede49991cb4d805c519679f8883d1a0125b2388"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:WB72DKHZ3U75ANSNHG73N2AZ4G","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Science with the TianQin Observatory: Preliminary Results on Testing the No-hair Theorem with EMRI","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Changfu Shi, Hui-Min Fan, Jian-dong Zhang, Jianwei Mei, Tie-Guang Zi, Xue-Ting Zhang, Yi-Ming Hu","submitted_at":"2021-04-13T09:21:43Z","abstract_excerpt":"Constituted with a massive black hole and a stellar mass compact object, Extreme Mass Ratio Inspiral (EMRI) events hold unique opportunity for the study of massive black holes, such as by measuring and checking the relations among the mass, spin and quadrupole moment of a massive black hole, putting the no-hair theorem to test. TianQin is a planned space-based gravitational wave observatory and EMRI is one of its main types of sources. It is important to estimate the capacity of TianQin on testing the no-hair theorem with EMRIs. In this work, we use the analytic kludge waveform with quadrupole"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2104.06047","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/2104.06047/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":"2026-07-05T03:11:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lNMBOdCHM9XwBGmamCMWIS1R/M5iCvd5lXDf+BJk6Sv8KMAMIThEnwZpTHwjjsum908ISD3eu7RnABJKrSZhAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-31T17:47:50.615258Z"},"content_sha256":"d5af2e6ed747d2f270832903013e0e3e986b90f47e529311434ceb2deb7b6601","schema_version":"1.0","event_id":"sha256:d5af2e6ed747d2f270832903013e0e3e986b90f47e529311434ceb2deb7b6601"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WB72DKHZ3U75ANSNHG73N2AZ4G/bundle.json","state_url":"https://pith.science/pith/WB72DKHZ3U75ANSNHG73N2AZ4G/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WB72DKHZ3U75ANSNHG73N2AZ4G/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":"2026-07-31T17:47:50Z","links":{"resolver":"https://pith.science/pith/WB72DKHZ3U75ANSNHG73N2AZ4G","bundle":"https://pith.science/pith/WB72DKHZ3U75ANSNHG73N2AZ4G/bundle.json","state":"https://pith.science/pith/WB72DKHZ3U75ANSNHG73N2AZ4G/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WB72DKHZ3U75ANSNHG73N2AZ4G/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:WB72DKHZ3U75ANSNHG73N2AZ4G","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":"df426777ffbb4e670cd9f76f9ce8126255a9ff204ab2f00d052fd3e7467b4dbd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-04-13T09:21:43Z","title_canon_sha256":"2c62e8316ec0cac220c35bbc148ca191792bdc11a9d8ec6fd782eab14bea040c"},"schema_version":"1.0","source":{"id":"2104.06047","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2104.06047","created_at":"2026-07-05T03:11:12Z"},{"alias_kind":"arxiv_version","alias_value":"2104.06047v2","created_at":"2026-07-05T03:11:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2104.06047","created_at":"2026-07-05T03:11:12Z"},{"alias_kind":"pith_short_12","alias_value":"WB72DKHZ3U75","created_at":"2026-07-05T03:11:12Z"},{"alias_kind":"pith_short_16","alias_value":"WB72DKHZ3U75ANSN","created_at":"2026-07-05T03:11:12Z"},{"alias_kind":"pith_short_8","alias_value":"WB72DKHZ","created_at":"2026-07-05T03:11:12Z"}],"graph_snapshots":[{"event_id":"sha256:d5af2e6ed747d2f270832903013e0e3e986b90f47e529311434ceb2deb7b6601","target":"graph","created_at":"2026-07-05T03:11:12Z","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/2104.06047/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Constituted with a massive black hole and a stellar mass compact object, Extreme Mass Ratio Inspiral (EMRI) events hold unique opportunity for the study of massive black holes, such as by measuring and checking the relations among the mass, spin and quadrupole moment of a massive black hole, putting the no-hair theorem to test. TianQin is a planned space-based gravitational wave observatory and EMRI is one of its main types of sources. It is important to estimate the capacity of TianQin on testing the no-hair theorem with EMRIs. In this work, we use the analytic kludge waveform with quadrupole","authors_text":"Changfu Shi, Hui-Min Fan, Jian-dong Zhang, Jianwei Mei, Tie-Guang Zi, Xue-Ting Zhang, Yi-Ming Hu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-04-13T09:21:43Z","title":"Science with the TianQin Observatory: Preliminary Results on Testing the No-hair Theorem with EMRI"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2104.06047","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:eda50ea9bee83ad0cd2eb46aaede49991cb4d805c519679f8883d1a0125b2388","target":"record","created_at":"2026-07-05T03:11:12Z","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":"df426777ffbb4e670cd9f76f9ce8126255a9ff204ab2f00d052fd3e7467b4dbd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-04-13T09:21:43Z","title_canon_sha256":"2c62e8316ec0cac220c35bbc148ca191792bdc11a9d8ec6fd782eab14bea040c"},"schema_version":"1.0","source":{"id":"2104.06047","kind":"arxiv","version":2}},"canonical_sha256":"b07fa1a8f9dd3fd0364d39bfb6e819e182d0001887fe42f90a8e96c6f518f1fe","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b07fa1a8f9dd3fd0364d39bfb6e819e182d0001887fe42f90a8e96c6f518f1fe","first_computed_at":"2026-07-05T03:11:12.362647Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:11:12.362647Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nTOaY8iKqPfMZLdnT6HJI2a1lX6SPAUlOus2M0Dg2g2+w6nlqZozkUZlteuWr14WsXuZEDAKDPt3dPtPPMOqDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T03:11:12.363108Z","signed_message":"canonical_sha256_bytes"},"source_id":"2104.06047","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:eda50ea9bee83ad0cd2eb46aaede49991cb4d805c519679f8883d1a0125b2388","sha256:d5af2e6ed747d2f270832903013e0e3e986b90f47e529311434ceb2deb7b6601"],"state_sha256":"2e04968e23d7d03945e6b7f3f7dab5f70b0e33b22bedb0c89a926db1ac3988f1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TaY4TYL3qbUbBU59W3CrAKBvmlSxKobjTnsmxjKvi2zZaMP3c/H5ZMIiyEp3yBgJxU30+oNp2WKYp8A+pDSUCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-31T17:47:50.617847Z","bundle_sha256":"9da6fa5d97ea0e69fd63c7245712ce457db3bc8d4dc3abd4d4a354fa0401c223"}}