{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:ZJPV35NTYZTS7AY7MILVA5DW64","short_pith_number":"pith:ZJPV35NT","canonical_record":{"source":{"id":"2002.01028","kind":"arxiv","version":7},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-02-03T22:10:11Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"cea04b42bf088ec5ae55c2affb3ee4aeb57df7cd321f995a2ed96ab0ab6fc744","abstract_canon_sha256":"992e37f8aaaa00ab34d567e9eb35d6de09cbec8f3f04d16f608fafe24aefc7b6"},"schema_version":"1.0"},"canonical_sha256":"ca5f5df5b3c6672f831f6217507476f725289d1e844e00dacb342ae0831a3140","source":{"kind":"arxiv","id":"2002.01028","version":7},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2002.01028","created_at":"2026-07-05T02:42:00Z"},{"alias_kind":"arxiv_version","alias_value":"2002.01028v7","created_at":"2026-07-05T02:42:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2002.01028","created_at":"2026-07-05T02:42:00Z"},{"alias_kind":"pith_short_12","alias_value":"ZJPV35NTYZTS","created_at":"2026-07-05T02:42:00Z"},{"alias_kind":"pith_short_16","alias_value":"ZJPV35NTYZTS7AY7","created_at":"2026-07-05T02:42:00Z"},{"alias_kind":"pith_short_8","alias_value":"ZJPV35NT","created_at":"2026-07-05T02:42:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:ZJPV35NTYZTS7AY7MILVA5DW64","target":"record","payload":{"canonical_record":{"source":{"id":"2002.01028","kind":"arxiv","version":7},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-02-03T22:10:11Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"cea04b42bf088ec5ae55c2affb3ee4aeb57df7cd321f995a2ed96ab0ab6fc744","abstract_canon_sha256":"992e37f8aaaa00ab34d567e9eb35d6de09cbec8f3f04d16f608fafe24aefc7b6"},"schema_version":"1.0"},"canonical_sha256":"ca5f5df5b3c6672f831f6217507476f725289d1e844e00dacb342ae0831a3140","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:42:00.124980Z","signature_b64":"uavlE7PLkcK8892xfcPofn9kO2qgso9zBV1ZCLRXwUWxnTJWkB3bybTUmRPCW6ryFBPQTgE2sDHxn5EltzxXBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ca5f5df5b3c6672f831f6217507476f725289d1e844e00dacb342ae0831a3140","last_reissued_at":"2026-07-05T02:42:00.124513Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:42:00.124513Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2002.01028","source_version":7,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T02:42:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9THHMiK84ij3vjUxcoVLgG5Sc2nF0zVfZODLBdK/H+/XlcbCEiko8LLWMfBoXrVxbrrm9X1Dty7FB6xnOIRHAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T23:49:49.495834Z"},"content_sha256":"bd4709583680ffe302ba6618e8ad61350d6c4f1840fa62e91d57d475eda49fc7","schema_version":"1.0","event_id":"sha256:bd4709583680ffe302ba6618e8ad61350d6c4f1840fa62e91d57d475eda49fc7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:ZJPV35NTYZTS7AY7MILVA5DW64","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Asymptotically flat, parameterized black hole metric preserving Kerr symmetries","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"gr-qc","authors_text":"Kent Yagi, Zack Carson","submitted_at":"2020-02-03T22:10:11Z","abstract_excerpt":"Recently the Event Horizon Telescope Collaboration, with very-long baseline interferometric observations, resolved structure at the scale of $\\sim5$ Schwarzschild radii about the center of M87$^*$, the supermassive black hole resident at the center of Messier 87. This important observation has paved the way for testing what is known as the \"no-hair\" theorem, stating that isolated black holes are described by the Kerr metric, parameterized only by their mass and spin. Generic, parameterized spacetimes beyond Kerr allow one to arbitrarily test the no-hair theorem for deviations from the Kerr res"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2002.01028","kind":"arxiv","version":7},"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/2002.01028/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":"2026-07-05T02:42:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ChNNbfB0vsxI0DQzU3nYdoU3xlA28kFDqY3UnkVvZXp4gKNvTudsnxZ2Hdo2qTTZzGW3iHmcXiPour+t3N9wAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T23:49:49.496405Z"},"content_sha256":"37d7dfce476d02c9ec48a22b59bc1e10015ec80c0c0b3fdc1240bff895a2ec0a","schema_version":"1.0","event_id":"sha256:37d7dfce476d02c9ec48a22b59bc1e10015ec80c0c0b3fdc1240bff895a2ec0a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZJPV35NTYZTS7AY7MILVA5DW64/bundle.json","state_url":"https://pith.science/pith/ZJPV35NTYZTS7AY7MILVA5DW64/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZJPV35NTYZTS7AY7MILVA5DW64/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":"2026-08-07T23:49:49Z","links":{"resolver":"https://pith.science/pith/ZJPV35NTYZTS7AY7MILVA5DW64","bundle":"https://pith.science/pith/ZJPV35NTYZTS7AY7MILVA5DW64/bundle.json","state":"https://pith.science/pith/ZJPV35NTYZTS7AY7MILVA5DW64/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZJPV35NTYZTS7AY7MILVA5DW64/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:ZJPV35NTYZTS7AY7MILVA5DW64","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":"992e37f8aaaa00ab34d567e9eb35d6de09cbec8f3f04d16f608fafe24aefc7b6","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-02-03T22:10:11Z","title_canon_sha256":"cea04b42bf088ec5ae55c2affb3ee4aeb57df7cd321f995a2ed96ab0ab6fc744"},"schema_version":"1.0","source":{"id":"2002.01028","kind":"arxiv","version":7}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2002.01028","created_at":"2026-07-05T02:42:00Z"},{"alias_kind":"arxiv_version","alias_value":"2002.01028v7","created_at":"2026-07-05T02:42:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2002.01028","created_at":"2026-07-05T02:42:00Z"},{"alias_kind":"pith_short_12","alias_value":"ZJPV35NTYZTS","created_at":"2026-07-05T02:42:00Z"},{"alias_kind":"pith_short_16","alias_value":"ZJPV35NTYZTS7AY7","created_at":"2026-07-05T02:42:00Z"},{"alias_kind":"pith_short_8","alias_value":"ZJPV35NT","created_at":"2026-07-05T02:42:00Z"}],"graph_snapshots":[{"event_id":"sha256:37d7dfce476d02c9ec48a22b59bc1e10015ec80c0c0b3fdc1240bff895a2ec0a","target":"graph","created_at":"2026-07-05T02:42:00Z","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/2002.01028/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Recently the Event Horizon Telescope Collaboration, with very-long baseline interferometric observations, resolved structure at the scale of $\\sim5$ Schwarzschild radii about the center of M87$^*$, the supermassive black hole resident at the center of Messier 87. This important observation has paved the way for testing what is known as the \"no-hair\" theorem, stating that isolated black holes are described by the Kerr metric, parameterized only by their mass and spin. Generic, parameterized spacetimes beyond Kerr allow one to arbitrarily test the no-hair theorem for deviations from the Kerr res","authors_text":"Kent Yagi, Zack Carson","cross_cats":["hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-02-03T22:10:11Z","title":"Asymptotically flat, parameterized black hole metric preserving Kerr symmetries"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2002.01028","kind":"arxiv","version":7},"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:bd4709583680ffe302ba6618e8ad61350d6c4f1840fa62e91d57d475eda49fc7","target":"record","created_at":"2026-07-05T02:42:00Z","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":"992e37f8aaaa00ab34d567e9eb35d6de09cbec8f3f04d16f608fafe24aefc7b6","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-02-03T22:10:11Z","title_canon_sha256":"cea04b42bf088ec5ae55c2affb3ee4aeb57df7cd321f995a2ed96ab0ab6fc744"},"schema_version":"1.0","source":{"id":"2002.01028","kind":"arxiv","version":7}},"canonical_sha256":"ca5f5df5b3c6672f831f6217507476f725289d1e844e00dacb342ae0831a3140","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ca5f5df5b3c6672f831f6217507476f725289d1e844e00dacb342ae0831a3140","first_computed_at":"2026-07-05T02:42:00.124513Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:42:00.124513Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uavlE7PLkcK8892xfcPofn9kO2qgso9zBV1ZCLRXwUWxnTJWkB3bybTUmRPCW6ryFBPQTgE2sDHxn5EltzxXBw==","signature_status":"signed_v1","signed_at":"2026-07-05T02:42:00.124980Z","signed_message":"canonical_sha256_bytes"},"source_id":"2002.01028","source_kind":"arxiv","source_version":7}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bd4709583680ffe302ba6618e8ad61350d6c4f1840fa62e91d57d475eda49fc7","sha256:37d7dfce476d02c9ec48a22b59bc1e10015ec80c0c0b3fdc1240bff895a2ec0a"],"state_sha256":"78500ca7cc72168c9ee171bbc0431cba840887513aec32af5ae180a324cf2571"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TwJPeqoGYevxnsFhaly8e1kKMLuvG0SFYharFvGjVAwddJrOlx2m6l8K8ec9y6wXQLWVJtwKnzLkbWxVpUXcDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T23:49:49.502122Z","bundle_sha256":"2760c0fcb4f88a74a081d598531a97c85dc4265d96ab227f7f5b14f596a2103d"}}