{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:FRJZZFLXZ7X7UIE7YS2SXOJAVE","short_pith_number":"pith:FRJZZFLX","canonical_record":{"source":{"id":"2303.02726","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-03-05T17:46:47Z","cross_cats_sorted":["astro-ph.HE","hep-th"],"title_canon_sha256":"f4347c5f387ecb614e37ba7b6a8e92115c9a412d5ad41b5846db68ec39c75975","abstract_canon_sha256":"cec590b4270465e9cd9cc439231e015a96567ceaafabfd46d452052378aa8665"},"schema_version":"1.0"},"canonical_sha256":"2c539c9577cfeffa209fc4b52bb920a90769da992dac74a56c85b006bc360cab","source":{"kind":"arxiv","id":"2303.02726","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2303.02726","created_at":"2026-07-05T06:25:22Z"},{"alias_kind":"arxiv_version","alias_value":"2303.02726v2","created_at":"2026-07-05T06:25:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.02726","created_at":"2026-07-05T06:25:22Z"},{"alias_kind":"pith_short_12","alias_value":"FRJZZFLXZ7X7","created_at":"2026-07-05T06:25:22Z"},{"alias_kind":"pith_short_16","alias_value":"FRJZZFLXZ7X7UIE7","created_at":"2026-07-05T06:25:22Z"},{"alias_kind":"pith_short_8","alias_value":"FRJZZFLX","created_at":"2026-07-05T06:25:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:FRJZZFLXZ7X7UIE7YS2SXOJAVE","target":"record","payload":{"canonical_record":{"source":{"id":"2303.02726","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-03-05T17:46:47Z","cross_cats_sorted":["astro-ph.HE","hep-th"],"title_canon_sha256":"f4347c5f387ecb614e37ba7b6a8e92115c9a412d5ad41b5846db68ec39c75975","abstract_canon_sha256":"cec590b4270465e9cd9cc439231e015a96567ceaafabfd46d452052378aa8665"},"schema_version":"1.0"},"canonical_sha256":"2c539c9577cfeffa209fc4b52bb920a90769da992dac74a56c85b006bc360cab","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:25:22.040050Z","signature_b64":"jrfYPtuBUvXPIgvQdWdmu7XvLKYUxbmO6DSpPDQoDCklClvNcvVCmWVU+yiwFerykLibePZRZURGOD74Tbx4BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2c539c9577cfeffa209fc4b52bb920a90769da992dac74a56c85b006bc360cab","last_reissued_at":"2026-07-05T06:25:22.039559Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:25:22.039559Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2303.02726","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":"2026-07-05T06:25:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"A1o8etdjHHYhqZ1cPZbaYSIUlUMvRNQurvFZ8uUaTdpXxvMOdnc7OoWw+6FE8c2yOauYFjfCOz6R9dkjUsjhCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T04:06:10.978390Z"},"content_sha256":"a5db0cfb5309580653141755c41f927ebc59e4d7b93fccc31016ac8c18b7f025","schema_version":"1.0","event_id":"sha256:a5db0cfb5309580653141755c41f927ebc59e4d7b93fccc31016ac8c18b7f025"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:FRJZZFLXZ7X7UIE7YS2SXOJAVE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Simulating cosmic string loop captured by a rotating black hole","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE","hep-th"],"primary_cat":"gr-qc","authors_text":"Alexander Vilenkin, Andrei Gruzinov, Heling Deng, Yuri Levin","submitted_at":"2023-03-05T17:46:47Z","abstract_excerpt":"We study the dynamics of a cosmic string loop captured by a rotating black hole, ignoring string reconnections. A loop is numerically evolved in Kerr spacetime, with the result that it turns into one or more growing or contracting double-lines rotating around the black hole in the equatorial plane. This is in good agreement with the approximate analytical treatment of the problem investigated by Xing et al., who studied the evolution of the auxiliary curve associated with the string loop. We confirm that the auxiliary curve deformation can indeed describe the string motion in realistic physica"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.02726","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/2303.02726/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":"2026-07-05T06:25:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PjESTXzmEgoIXqJDJWpPc55i/6lmH0/ulCaPplv8vOVSQXN7VwFdfoiTsjye/wF6p01MxxsULmGVg4kr7ytZAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T04:06:10.978973Z"},"content_sha256":"7a5b5047ac31c5e16e7b2fad49f8601c6be25320dc1e3ebeef5af0c141be2792","schema_version":"1.0","event_id":"sha256:7a5b5047ac31c5e16e7b2fad49f8601c6be25320dc1e3ebeef5af0c141be2792"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FRJZZFLXZ7X7UIE7YS2SXOJAVE/bundle.json","state_url":"https://pith.science/pith/FRJZZFLXZ7X7UIE7YS2SXOJAVE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FRJZZFLXZ7X7UIE7YS2SXOJAVE/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":"2026-08-20T04:06:10Z","links":{"resolver":"https://pith.science/pith/FRJZZFLXZ7X7UIE7YS2SXOJAVE","bundle":"https://pith.science/pith/FRJZZFLXZ7X7UIE7YS2SXOJAVE/bundle.json","state":"https://pith.science/pith/FRJZZFLXZ7X7UIE7YS2SXOJAVE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FRJZZFLXZ7X7UIE7YS2SXOJAVE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:FRJZZFLXZ7X7UIE7YS2SXOJAVE","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":"cec590b4270465e9cd9cc439231e015a96567ceaafabfd46d452052378aa8665","cross_cats_sorted":["astro-ph.HE","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-03-05T17:46:47Z","title_canon_sha256":"f4347c5f387ecb614e37ba7b6a8e92115c9a412d5ad41b5846db68ec39c75975"},"schema_version":"1.0","source":{"id":"2303.02726","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2303.02726","created_at":"2026-07-05T06:25:22Z"},{"alias_kind":"arxiv_version","alias_value":"2303.02726v2","created_at":"2026-07-05T06:25:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.02726","created_at":"2026-07-05T06:25:22Z"},{"alias_kind":"pith_short_12","alias_value":"FRJZZFLXZ7X7","created_at":"2026-07-05T06:25:22Z"},{"alias_kind":"pith_short_16","alias_value":"FRJZZFLXZ7X7UIE7","created_at":"2026-07-05T06:25:22Z"},{"alias_kind":"pith_short_8","alias_value":"FRJZZFLX","created_at":"2026-07-05T06:25:22Z"}],"graph_snapshots":[{"event_id":"sha256:7a5b5047ac31c5e16e7b2fad49f8601c6be25320dc1e3ebeef5af0c141be2792","target":"graph","created_at":"2026-07-05T06:25:22Z","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/2303.02726/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study the dynamics of a cosmic string loop captured by a rotating black hole, ignoring string reconnections. A loop is numerically evolved in Kerr spacetime, with the result that it turns into one or more growing or contracting double-lines rotating around the black hole in the equatorial plane. This is in good agreement with the approximate analytical treatment of the problem investigated by Xing et al., who studied the evolution of the auxiliary curve associated with the string loop. We confirm that the auxiliary curve deformation can indeed describe the string motion in realistic physica","authors_text":"Alexander Vilenkin, Andrei Gruzinov, Heling Deng, Yuri Levin","cross_cats":["astro-ph.HE","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-03-05T17:46:47Z","title":"Simulating cosmic string loop captured by a rotating black hole"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.02726","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:a5db0cfb5309580653141755c41f927ebc59e4d7b93fccc31016ac8c18b7f025","target":"record","created_at":"2026-07-05T06:25:22Z","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":"cec590b4270465e9cd9cc439231e015a96567ceaafabfd46d452052378aa8665","cross_cats_sorted":["astro-ph.HE","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-03-05T17:46:47Z","title_canon_sha256":"f4347c5f387ecb614e37ba7b6a8e92115c9a412d5ad41b5846db68ec39c75975"},"schema_version":"1.0","source":{"id":"2303.02726","kind":"arxiv","version":2}},"canonical_sha256":"2c539c9577cfeffa209fc4b52bb920a90769da992dac74a56c85b006bc360cab","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2c539c9577cfeffa209fc4b52bb920a90769da992dac74a56c85b006bc360cab","first_computed_at":"2026-07-05T06:25:22.039559Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:25:22.039559Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jrfYPtuBUvXPIgvQdWdmu7XvLKYUxbmO6DSpPDQoDCklClvNcvVCmWVU+yiwFerykLibePZRZURGOD74Tbx4BQ==","signature_status":"signed_v1","signed_at":"2026-07-05T06:25:22.040050Z","signed_message":"canonical_sha256_bytes"},"source_id":"2303.02726","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a5db0cfb5309580653141755c41f927ebc59e4d7b93fccc31016ac8c18b7f025","sha256:7a5b5047ac31c5e16e7b2fad49f8601c6be25320dc1e3ebeef5af0c141be2792"],"state_sha256":"aeb03cfcbaba28b42a7e2a2c80683d1d98c451a5aa38717d2e763b2938c098d0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fJL37CwtnK0wKG/lSv8Eks2bpijSxahk0kbf4W5lRCbgy0jDqgQkS0QbvNMlGINpWezxmUlsa8e/K3uzl51oDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-20T04:06:10.983998Z","bundle_sha256":"be907cc86fdbba5bf97eac4fca96399b4c50c5af669a674b4a97c49c511114b1"}}