{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:LMSRBYZ3HLV7POSLB3IME6V5JI","short_pith_number":"pith:LMSRBYZ3","canonical_record":{"source":{"id":"2010.05932","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-10-12T18:01:01Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"786ac5aac4351be8484452cb7f4d2672ea9c264ed2508c08db0bf532565ed4c8","abstract_canon_sha256":"fc1b15d266a5e32a20cfab6400adaec7d4a3865d7e534aa85bfc7de2f9b595cc"},"schema_version":"1.0"},"canonical_sha256":"5b2510e33b3aebf7ba4b0ed0c27abd4a0e7dbc3a663b17ad75cea87cc84cca20","source":{"kind":"arxiv","id":"2010.05932","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2010.05932","created_at":"2026-07-05T02:03:49Z"},{"alias_kind":"arxiv_version","alias_value":"2010.05932v2","created_at":"2026-07-05T02:03:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2010.05932","created_at":"2026-07-05T02:03:49Z"},{"alias_kind":"pith_short_12","alias_value":"LMSRBYZ3HLV7","created_at":"2026-07-05T02:03:49Z"},{"alias_kind":"pith_short_16","alias_value":"LMSRBYZ3HLV7POSL","created_at":"2026-07-05T02:03:49Z"},{"alias_kind":"pith_short_8","alias_value":"LMSRBYZ3","created_at":"2026-07-05T02:03:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:LMSRBYZ3HLV7POSLB3IME6V5JI","target":"record","payload":{"canonical_record":{"source":{"id":"2010.05932","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-10-12T18:01:01Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"786ac5aac4351be8484452cb7f4d2672ea9c264ed2508c08db0bf532565ed4c8","abstract_canon_sha256":"fc1b15d266a5e32a20cfab6400adaec7d4a3865d7e534aa85bfc7de2f9b595cc"},"schema_version":"1.0"},"canonical_sha256":"5b2510e33b3aebf7ba4b0ed0c27abd4a0e7dbc3a663b17ad75cea87cc84cca20","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:03:49.697068Z","signature_b64":"x8oTxyyAxUU6IVCyY4+T1ZEKgOA3mV5SfAUFr8MVWpR9f+YkE53t8zEQlngnlwvk9tK0k45Y2P+NCB8LRBGmBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5b2510e33b3aebf7ba4b0ed0c27abd4a0e7dbc3a663b17ad75cea87cc84cca20","last_reissued_at":"2026-07-05T02:03:49.696726Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:03:49.696726Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2010.05932","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":"2026-07-05T02:03:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"STAY2cf92eM4jtOw6JperEkhZJIQfiYylnVsTOxGHZw9RDB8K249q/9pAdwKws9bsjijHQpdbqZvMtOhTtynCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-09T06:48:39.371702Z"},"content_sha256":"b4a9d74d03bc7f03de952e8506a959c8804136bf5e77fde2ad9725ac723c7df0","schema_version":"1.0","event_id":"sha256:b4a9d74d03bc7f03de952e8506a959c8804136bf5e77fde2ad9725ac723c7df0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:LMSRBYZ3HLV7POSLB3IME6V5JI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Constraining the spin parameter of near-extremal black holes using LISA","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-th"],"primary_cat":"gr-qc","authors_text":"Joan Sim\\'on, Jonathan R. Gair, Matthew C. Edwards, Ollie Burke","submitted_at":"2020-10-12T18:01:01Z","abstract_excerpt":"We describe a model that generates first order adiabatic EMRI waveforms for quasi-circular equatorial inspirals of compact objects into rapidly rotating (near-extremal) black holes. Using our model, we show that LISA could measure the spin parameter of near-extremal black holes (for $a \\gtrsim 0.9999$) with extraordinary precision, $\\sim$ 3-4 orders of magnitude better than for moderate spins, $a \\sim 0.9$. Such spin measurements would be one of the tightest measurements of an astrophysical parameter within a gravitational wave context. Our results are primarily based off a Fisher matrix analy"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2010.05932","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/2010.05932/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":"2026-07-05T02:03:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NfkME1HjqaALRLOBEB2gvCVc+5mfbwHlbBaoYbizJ0Wzn4l3+IfVTw+QdkSeQaXS3eAZ+TxsSnc6+Z8VCAtABQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-09T06:48:39.372373Z"},"content_sha256":"55b58096ddd19c4348674e0012bc1a7d9ba1ff68cfb63bf8096ed178610c027f","schema_version":"1.0","event_id":"sha256:55b58096ddd19c4348674e0012bc1a7d9ba1ff68cfb63bf8096ed178610c027f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LMSRBYZ3HLV7POSLB3IME6V5JI/bundle.json","state_url":"https://pith.science/pith/LMSRBYZ3HLV7POSLB3IME6V5JI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LMSRBYZ3HLV7POSLB3IME6V5JI/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":"2026-07-09T06:48:39Z","links":{"resolver":"https://pith.science/pith/LMSRBYZ3HLV7POSLB3IME6V5JI","bundle":"https://pith.science/pith/LMSRBYZ3HLV7POSLB3IME6V5JI/bundle.json","state":"https://pith.science/pith/LMSRBYZ3HLV7POSLB3IME6V5JI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LMSRBYZ3HLV7POSLB3IME6V5JI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:LMSRBYZ3HLV7POSLB3IME6V5JI","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":"fc1b15d266a5e32a20cfab6400adaec7d4a3865d7e534aa85bfc7de2f9b595cc","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-10-12T18:01:01Z","title_canon_sha256":"786ac5aac4351be8484452cb7f4d2672ea9c264ed2508c08db0bf532565ed4c8"},"schema_version":"1.0","source":{"id":"2010.05932","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2010.05932","created_at":"2026-07-05T02:03:49Z"},{"alias_kind":"arxiv_version","alias_value":"2010.05932v2","created_at":"2026-07-05T02:03:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2010.05932","created_at":"2026-07-05T02:03:49Z"},{"alias_kind":"pith_short_12","alias_value":"LMSRBYZ3HLV7","created_at":"2026-07-05T02:03:49Z"},{"alias_kind":"pith_short_16","alias_value":"LMSRBYZ3HLV7POSL","created_at":"2026-07-05T02:03:49Z"},{"alias_kind":"pith_short_8","alias_value":"LMSRBYZ3","created_at":"2026-07-05T02:03:49Z"}],"graph_snapshots":[{"event_id":"sha256:55b58096ddd19c4348674e0012bc1a7d9ba1ff68cfb63bf8096ed178610c027f","target":"graph","created_at":"2026-07-05T02:03:49Z","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/2010.05932/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We describe a model that generates first order adiabatic EMRI waveforms for quasi-circular equatorial inspirals of compact objects into rapidly rotating (near-extremal) black holes. Using our model, we show that LISA could measure the spin parameter of near-extremal black holes (for $a \\gtrsim 0.9999$) with extraordinary precision, $\\sim$ 3-4 orders of magnitude better than for moderate spins, $a \\sim 0.9$. Such spin measurements would be one of the tightest measurements of an astrophysical parameter within a gravitational wave context. Our results are primarily based off a Fisher matrix analy","authors_text":"Joan Sim\\'on, Jonathan R. Gair, Matthew C. Edwards, Ollie Burke","cross_cats":["hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-10-12T18:01:01Z","title":"Constraining the spin parameter of near-extremal black holes using LISA"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2010.05932","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:b4a9d74d03bc7f03de952e8506a959c8804136bf5e77fde2ad9725ac723c7df0","target":"record","created_at":"2026-07-05T02:03:49Z","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":"fc1b15d266a5e32a20cfab6400adaec7d4a3865d7e534aa85bfc7de2f9b595cc","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-10-12T18:01:01Z","title_canon_sha256":"786ac5aac4351be8484452cb7f4d2672ea9c264ed2508c08db0bf532565ed4c8"},"schema_version":"1.0","source":{"id":"2010.05932","kind":"arxiv","version":2}},"canonical_sha256":"5b2510e33b3aebf7ba4b0ed0c27abd4a0e7dbc3a663b17ad75cea87cc84cca20","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5b2510e33b3aebf7ba4b0ed0c27abd4a0e7dbc3a663b17ad75cea87cc84cca20","first_computed_at":"2026-07-05T02:03:49.696726Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:03:49.696726Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"x8oTxyyAxUU6IVCyY4+T1ZEKgOA3mV5SfAUFr8MVWpR9f+YkE53t8zEQlngnlwvk9tK0k45Y2P+NCB8LRBGmBw==","signature_status":"signed_v1","signed_at":"2026-07-05T02:03:49.697068Z","signed_message":"canonical_sha256_bytes"},"source_id":"2010.05932","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b4a9d74d03bc7f03de952e8506a959c8804136bf5e77fde2ad9725ac723c7df0","sha256:55b58096ddd19c4348674e0012bc1a7d9ba1ff68cfb63bf8096ed178610c027f"],"state_sha256":"679a6b404c1ead0db9fb0cb4d254d3df59117db6a94f2e9c35cd5324e6d73b8a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"C+/xAypUE5dRrdPQX6P0GT3RO/wzjCuHNtCe/DkpMetrV08MeQlIBWg40gcY2uh3tmd7OKJpwcx4oGWjWhQNBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-09T06:48:39.375614Z","bundle_sha256":"9a2c7c35d5068586bddb8a9e90ea73b8dfb18f2d364cb27a25fc5ac5d660da90"}}