{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:YBUQ76CW5D3A7ALROMDA4C4VQ6","short_pith_number":"pith:YBUQ76CW","canonical_record":{"source":{"id":"1811.04711","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-11-12T13:19:33Z","cross_cats_sorted":["astro-ph.HE","hep-th"],"title_canon_sha256":"a86427f0a7cdeca6e8b9a5c67604a460f1bb30e7f9e1be5935c265a88efeefa5","abstract_canon_sha256":"3db44d006832d10bded5f2551b324543f147cdc700bda090493bfc1c469b22a0"},"schema_version":"1.0"},"canonical_sha256":"c0690ff856e8f60f817173060e0b958782921252489d48818cd1bfb88ce745b5","source":{"kind":"arxiv","id":"1811.04711","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.04711","created_at":"2026-05-17T23:48:45Z"},{"alias_kind":"arxiv_version","alias_value":"1811.04711v3","created_at":"2026-05-17T23:48:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.04711","created_at":"2026-05-17T23:48:45Z"},{"alias_kind":"pith_short_12","alias_value":"YBUQ76CW5D3A","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_16","alias_value":"YBUQ76CW5D3A7ALR","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_8","alias_value":"YBUQ76CW","created_at":"2026-05-18T12:33:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:YBUQ76CW5D3A7ALROMDA4C4VQ6","target":"record","payload":{"canonical_record":{"source":{"id":"1811.04711","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-11-12T13:19:33Z","cross_cats_sorted":["astro-ph.HE","hep-th"],"title_canon_sha256":"a86427f0a7cdeca6e8b9a5c67604a460f1bb30e7f9e1be5935c265a88efeefa5","abstract_canon_sha256":"3db44d006832d10bded5f2551b324543f147cdc700bda090493bfc1c469b22a0"},"schema_version":"1.0"},"canonical_sha256":"c0690ff856e8f60f817173060e0b958782921252489d48818cd1bfb88ce745b5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:48:45.453994Z","signature_b64":"HEw3z/BS1uJAGQemjHov7NQ85fM/r6SfrDnDdxdPYQXCkXjHASj1rRXnHQM3UmUKt2xkkFwGi2gvP6U1QF5JAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c0690ff856e8f60f817173060e0b958782921252489d48818cd1bfb88ce745b5","last_reissued_at":"2026-05-17T23:48:45.453573Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:48:45.453573Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1811.04711","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:48:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qOmGKNNthyDr4rahYfWRbjlm+NoAilMrYKcGhud2MufoSLcfmukNvfBjdY43MgMps5EE4U5PKXbS1oewH0YmCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T23:32:17.932335Z"},"content_sha256":"5864e53ab6ecda45ee7cca05271925548a49d146fdf68128abba50340e3e74fa","schema_version":"1.0","event_id":"sha256:5864e53ab6ecda45ee7cca05271925548a49d146fdf68128abba50340e3e74fa"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:YBUQ76CW5D3A7ALROMDA4C4VQ6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Kerr Black Holes and Nonlinear Radiation Memory","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE","hep-th"],"primary_cat":"gr-qc","authors_text":"Jeffrey Winicour, Thomas M\\\"adler","submitted_at":"2018-11-12T13:19:33Z","abstract_excerpt":"The Minkowski background intrinsic to the Kerr-Schild version of the Kerr metric provides a definition of a boosted spinning black hole. There are two Kerr-Schild versions corresponding to ingoing or outgoing principal null directions. The two corresponding Minkowski backgrounds and their associated boosts differ drastically. This has an important implication for the gravitational memory effect. A prior analysis of the transition of a non-spinning Schwarzschild black hole to a boosted state showed that the memory effect in the nonlinear regime agrees with the linearised result based upon the r"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.04711","kind":"arxiv","version":3},"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":"2026-05-17T23:48:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RYi3ByQkYKxY/iV8k/ow348LF3gRSG4DxpG0V95CHrO38n6ZiOoR9OWtQnWlEx8Szc1l2PIuHEtFJ5RbPJa+Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T23:32:17.933000Z"},"content_sha256":"66ca8e8adcc000baa520f540716051927ffe1439c91ec24577fb27ee2dcb8e3e","schema_version":"1.0","event_id":"sha256:66ca8e8adcc000baa520f540716051927ffe1439c91ec24577fb27ee2dcb8e3e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YBUQ76CW5D3A7ALROMDA4C4VQ6/bundle.json","state_url":"https://pith.science/pith/YBUQ76CW5D3A7ALROMDA4C4VQ6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YBUQ76CW5D3A7ALROMDA4C4VQ6/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":"2026-06-11T23:32:17Z","links":{"resolver":"https://pith.science/pith/YBUQ76CW5D3A7ALROMDA4C4VQ6","bundle":"https://pith.science/pith/YBUQ76CW5D3A7ALROMDA4C4VQ6/bundle.json","state":"https://pith.science/pith/YBUQ76CW5D3A7ALROMDA4C4VQ6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YBUQ76CW5D3A7ALROMDA4C4VQ6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:YBUQ76CW5D3A7ALROMDA4C4VQ6","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":"3db44d006832d10bded5f2551b324543f147cdc700bda090493bfc1c469b22a0","cross_cats_sorted":["astro-ph.HE","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-11-12T13:19:33Z","title_canon_sha256":"a86427f0a7cdeca6e8b9a5c67604a460f1bb30e7f9e1be5935c265a88efeefa5"},"schema_version":"1.0","source":{"id":"1811.04711","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.04711","created_at":"2026-05-17T23:48:45Z"},{"alias_kind":"arxiv_version","alias_value":"1811.04711v3","created_at":"2026-05-17T23:48:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.04711","created_at":"2026-05-17T23:48:45Z"},{"alias_kind":"pith_short_12","alias_value":"YBUQ76CW5D3A","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_16","alias_value":"YBUQ76CW5D3A7ALR","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_8","alias_value":"YBUQ76CW","created_at":"2026-05-18T12:33:04Z"}],"graph_snapshots":[{"event_id":"sha256:66ca8e8adcc000baa520f540716051927ffe1439c91ec24577fb27ee2dcb8e3e","target":"graph","created_at":"2026-05-17T23:48:45Z","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 Minkowski background intrinsic to the Kerr-Schild version of the Kerr metric provides a definition of a boosted spinning black hole. There are two Kerr-Schild versions corresponding to ingoing or outgoing principal null directions. The two corresponding Minkowski backgrounds and their associated boosts differ drastically. This has an important implication for the gravitational memory effect. A prior analysis of the transition of a non-spinning Schwarzschild black hole to a boosted state showed that the memory effect in the nonlinear regime agrees with the linearised result based upon the r","authors_text":"Jeffrey Winicour, Thomas M\\\"adler","cross_cats":["astro-ph.HE","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-11-12T13:19:33Z","title":"Kerr Black Holes and Nonlinear Radiation Memory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.04711","kind":"arxiv","version":3},"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":"sha256:5864e53ab6ecda45ee7cca05271925548a49d146fdf68128abba50340e3e74fa","target":"record","created_at":"2026-05-17T23:48:45Z","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":"3db44d006832d10bded5f2551b324543f147cdc700bda090493bfc1c469b22a0","cross_cats_sorted":["astro-ph.HE","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-11-12T13:19:33Z","title_canon_sha256":"a86427f0a7cdeca6e8b9a5c67604a460f1bb30e7f9e1be5935c265a88efeefa5"},"schema_version":"1.0","source":{"id":"1811.04711","kind":"arxiv","version":3}},"canonical_sha256":"c0690ff856e8f60f817173060e0b958782921252489d48818cd1bfb88ce745b5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c0690ff856e8f60f817173060e0b958782921252489d48818cd1bfb88ce745b5","first_computed_at":"2026-05-17T23:48:45.453573Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:48:45.453573Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HEw3z/BS1uJAGQemjHov7NQ85fM/r6SfrDnDdxdPYQXCkXjHASj1rRXnHQM3UmUKt2xkkFwGi2gvP6U1QF5JAw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:48:45.453994Z","signed_message":"canonical_sha256_bytes"},"source_id":"1811.04711","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5864e53ab6ecda45ee7cca05271925548a49d146fdf68128abba50340e3e74fa","sha256:66ca8e8adcc000baa520f540716051927ffe1439c91ec24577fb27ee2dcb8e3e"],"state_sha256":"f31af965ced7ce40bf2cb4bbfdeabe784f9aa0b473f7b0a4e510d89977fa9592"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1UiG1yPaIgWBGnI9BJVGk0xgzUPIp4jNM5ZYC+dgK+nCjzZBcZtxiT59DedpjN65QL+BQwFRhFxmc2tLpNEhDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T23:32:17.936733Z","bundle_sha256":"80617bdc7892d140c89934c366052cfe150aea593489a2e0fbdbe8d6de7cc530"}}