{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:KNSNVL72ADCHTI3KJPVGXV7RNC","short_pith_number":"pith:KNSNVL72","canonical_record":{"source":{"id":"2108.02841","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2021-08-05T20:47:46Z","cross_cats_sorted":[],"title_canon_sha256":"425e53ae0361289da0b7471b787e3c04cd50c09ddde2dcdbb707a4d483508fea","abstract_canon_sha256":"f900c25e4209c596466d33a806683acae4652e115d996f9c6285b0edc4500888"},"schema_version":"1.0"},"canonical_sha256":"5364daaffa00c479a36a4bea6bd7f16894674d9a3cddd9fd9b9ed4b0da398a6e","source":{"kind":"arxiv","id":"2108.02841","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.02841","created_at":"2026-07-05T03:45:39Z"},{"alias_kind":"arxiv_version","alias_value":"2108.02841v2","created_at":"2026-07-05T03:45:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.02841","created_at":"2026-07-05T03:45:39Z"},{"alias_kind":"pith_short_12","alias_value":"KNSNVL72ADCH","created_at":"2026-07-05T03:45:39Z"},{"alias_kind":"pith_short_16","alias_value":"KNSNVL72ADCHTI3K","created_at":"2026-07-05T03:45:39Z"},{"alias_kind":"pith_short_8","alias_value":"KNSNVL72","created_at":"2026-07-05T03:45:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:KNSNVL72ADCHTI3KJPVGXV7RNC","target":"record","payload":{"canonical_record":{"source":{"id":"2108.02841","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2021-08-05T20:47:46Z","cross_cats_sorted":[],"title_canon_sha256":"425e53ae0361289da0b7471b787e3c04cd50c09ddde2dcdbb707a4d483508fea","abstract_canon_sha256":"f900c25e4209c596466d33a806683acae4652e115d996f9c6285b0edc4500888"},"schema_version":"1.0"},"canonical_sha256":"5364daaffa00c479a36a4bea6bd7f16894674d9a3cddd9fd9b9ed4b0da398a6e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:45:39.995381Z","signature_b64":"3I7Cmz6UdOeAXmefGCreyNG1PKn65waJcEAfpyuJ8E9IgeezRvbNslkIcKk1S1/Rn/m9NuIdZrZN0y3tq3VHDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5364daaffa00c479a36a4bea6bd7f16894674d9a3cddd9fd9b9ed4b0da398a6e","last_reissued_at":"2026-07-05T03:45:39.994974Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:45:39.994974Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2108.02841","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":"2026-07-05T03:45:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TF8Wpip9qS46sAI5N8/AioRQlKqOROD1iY6fWdOHy43WEVqSs80zzFVnxjP7S58e8VQY09xcQXuRd7whQTsyCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T04:27:43.022070Z"},"content_sha256":"9b3e46ab400e94aa7e9ded2e23f0b7af282100047496ecfddd816f78ada5a442","schema_version":"1.0","event_id":"sha256:9b3e46ab400e94aa7e9ded2e23f0b7af282100047496ecfddd816f78ada5a442"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:KNSNVL72ADCHTI3KJPVGXV7RNC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Physical interpretation of Newman-Janis rotating systems. II. General systems","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Paolo Gondolo, Philip Beltracchi","submitted_at":"2021-08-05T20:47:46Z","abstract_excerpt":"Drake and Szekeres have extended the Newman-Janis algorithm to produce stationary axisymmetric spacetimes from general static spherically symmetric solutions of the Einstein equations. The algorithm mathematically generates an energy-momentum tensor for the rotating solution, but the rotating and nonrotating system may or may not represent the same physical system, in the sense of both being a perfect fluid, or an electromagnetic field, or a $\\Lambda$-term, and so on. In Part I (arxiv:2104.02255), we compared the structure of the eigenvalues and eigenvectors of the rotating and nonrotating ene"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.02841","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/2108.02841/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":"2026-07-05T03:45:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"78ZXl2h8/ZZlefhobcjnNPN+fVfL3xEqHjLJgsTDmsp0Hjq1poNHH6TNyb2Ie/xC1Bhq4j05rpEWPD84ohBZDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T04:27:43.022985Z"},"content_sha256":"20eac77c625fa16d338df173318a278c24e1d965b65a1bf6ee6dad8523e28590","schema_version":"1.0","event_id":"sha256:20eac77c625fa16d338df173318a278c24e1d965b65a1bf6ee6dad8523e28590"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KNSNVL72ADCHTI3KJPVGXV7RNC/bundle.json","state_url":"https://pith.science/pith/KNSNVL72ADCHTI3KJPVGXV7RNC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KNSNVL72ADCHTI3KJPVGXV7RNC/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":"2026-08-04T04:27:43Z","links":{"resolver":"https://pith.science/pith/KNSNVL72ADCHTI3KJPVGXV7RNC","bundle":"https://pith.science/pith/KNSNVL72ADCHTI3KJPVGXV7RNC/bundle.json","state":"https://pith.science/pith/KNSNVL72ADCHTI3KJPVGXV7RNC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KNSNVL72ADCHTI3KJPVGXV7RNC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:KNSNVL72ADCHTI3KJPVGXV7RNC","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":"f900c25e4209c596466d33a806683acae4652e115d996f9c6285b0edc4500888","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2021-08-05T20:47:46Z","title_canon_sha256":"425e53ae0361289da0b7471b787e3c04cd50c09ddde2dcdbb707a4d483508fea"},"schema_version":"1.0","source":{"id":"2108.02841","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.02841","created_at":"2026-07-05T03:45:39Z"},{"alias_kind":"arxiv_version","alias_value":"2108.02841v2","created_at":"2026-07-05T03:45:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.02841","created_at":"2026-07-05T03:45:39Z"},{"alias_kind":"pith_short_12","alias_value":"KNSNVL72ADCH","created_at":"2026-07-05T03:45:39Z"},{"alias_kind":"pith_short_16","alias_value":"KNSNVL72ADCHTI3K","created_at":"2026-07-05T03:45:39Z"},{"alias_kind":"pith_short_8","alias_value":"KNSNVL72","created_at":"2026-07-05T03:45:39Z"}],"graph_snapshots":[{"event_id":"sha256:20eac77c625fa16d338df173318a278c24e1d965b65a1bf6ee6dad8523e28590","target":"graph","created_at":"2026-07-05T03:45:39Z","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/2108.02841/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Drake and Szekeres have extended the Newman-Janis algorithm to produce stationary axisymmetric spacetimes from general static spherically symmetric solutions of the Einstein equations. The algorithm mathematically generates an energy-momentum tensor for the rotating solution, but the rotating and nonrotating system may or may not represent the same physical system, in the sense of both being a perfect fluid, or an electromagnetic field, or a $\\Lambda$-term, and so on. In Part I (arxiv:2104.02255), we compared the structure of the eigenvalues and eigenvectors of the rotating and nonrotating ene","authors_text":"Paolo Gondolo, Philip Beltracchi","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2021-08-05T20:47:46Z","title":"Physical interpretation of Newman-Janis rotating systems. II. General systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.02841","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":"sha256:9b3e46ab400e94aa7e9ded2e23f0b7af282100047496ecfddd816f78ada5a442","target":"record","created_at":"2026-07-05T03:45:39Z","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":"f900c25e4209c596466d33a806683acae4652e115d996f9c6285b0edc4500888","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2021-08-05T20:47:46Z","title_canon_sha256":"425e53ae0361289da0b7471b787e3c04cd50c09ddde2dcdbb707a4d483508fea"},"schema_version":"1.0","source":{"id":"2108.02841","kind":"arxiv","version":2}},"canonical_sha256":"5364daaffa00c479a36a4bea6bd7f16894674d9a3cddd9fd9b9ed4b0da398a6e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5364daaffa00c479a36a4bea6bd7f16894674d9a3cddd9fd9b9ed4b0da398a6e","first_computed_at":"2026-07-05T03:45:39.994974Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:45:39.994974Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3I7Cmz6UdOeAXmefGCreyNG1PKn65waJcEAfpyuJ8E9IgeezRvbNslkIcKk1S1/Rn/m9NuIdZrZN0y3tq3VHDA==","signature_status":"signed_v1","signed_at":"2026-07-05T03:45:39.995381Z","signed_message":"canonical_sha256_bytes"},"source_id":"2108.02841","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9b3e46ab400e94aa7e9ded2e23f0b7af282100047496ecfddd816f78ada5a442","sha256:20eac77c625fa16d338df173318a278c24e1d965b65a1bf6ee6dad8523e28590"],"state_sha256":"8224c4d0dbd35a90934a4a3099d3f0415da160d6c035c2e081a5b5c43edb7ac6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MHJoasQMFjOkYhjt7sJeCgtunF/ZaPg+yAreM7Yd3/UUqEPC+8iOa6Nzb6xvC/Hhp5GsXCUNqg6HOQ/8UO4ICA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T04:27:43.028497Z","bundle_sha256":"a9b1005398454a72da1fa32167bf0f41c436fbe4616611975e6f90ca846179c8"}}