{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:O2N36YDXNUHJZMH6GJEG3O2MPY","short_pith_number":"pith:O2N36YDX","canonical_record":{"source":{"id":"1812.02635","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-12-06T16:15:01Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"9fb9d7e48185365ca9ef62707475efda7d0e158212db2b5ce1b1668fd6a6a9a2","abstract_canon_sha256":"c3f64548551bcf28d235c366522a34e73c3fef388e582915e6a79410a2afabc6"},"schema_version":"1.0"},"canonical_sha256":"769bbf60776d0e9cb0fe32486dbb4c7e0310911211d90cb6a3863aa4141b34aa","source":{"kind":"arxiv","id":"1812.02635","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.02635","created_at":"2026-05-17T23:54:08Z"},{"alias_kind":"arxiv_version","alias_value":"1812.02635v2","created_at":"2026-05-17T23:54:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.02635","created_at":"2026-05-17T23:54:08Z"},{"alias_kind":"pith_short_12","alias_value":"O2N36YDXNUHJ","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_16","alias_value":"O2N36YDXNUHJZMH6","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_8","alias_value":"O2N36YDX","created_at":"2026-05-18T12:32:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:O2N36YDXNUHJZMH6GJEG3O2MPY","target":"record","payload":{"canonical_record":{"source":{"id":"1812.02635","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-12-06T16:15:01Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"9fb9d7e48185365ca9ef62707475efda7d0e158212db2b5ce1b1668fd6a6a9a2","abstract_canon_sha256":"c3f64548551bcf28d235c366522a34e73c3fef388e582915e6a79410a2afabc6"},"schema_version":"1.0"},"canonical_sha256":"769bbf60776d0e9cb0fe32486dbb4c7e0310911211d90cb6a3863aa4141b34aa","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:54:08.289484Z","signature_b64":"qOJ+YQSFVQyJsMMkeEkNi+Fdv0mF8NGeZfBnAVBmDVWRPvSU7s0wKBuUie4EM7xkQiMpFYVTM2bAEA7y6uOEAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"769bbf60776d0e9cb0fe32486dbb4c7e0310911211d90cb6a3863aa4141b34aa","last_reissued_at":"2026-05-17T23:54:08.288970Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:54:08.288970Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1812.02635","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":"2026-05-17T23:54:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FUesez5Hk9Y6W0/FveJXVQ4kah0ragtnjfz74gnTRS+/id+AwC00dFJ6lop86ILOY79zemRHxdeP4XAH86gaBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T22:01:59.574005Z"},"content_sha256":"94da8b94a2d75f323515cb1726cf63ea32cada2e81311a1d179edac309f84881","schema_version":"1.0","event_id":"sha256:94da8b94a2d75f323515cb1726cf63ea32cada2e81311a1d179edac309f84881"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:O2N36YDXNUHJZMH6GJEG3O2MPY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Gyratons in the Robinson-Trautman and Kundt classes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-th"],"primary_cat":"gr-qc","authors_text":"Jiri Podolsky, Robert Svarc","submitted_at":"2018-12-06T16:15:01Z","abstract_excerpt":"In our previous paper [Phys. Rev. D 89 (2014) 124029], cited as [1], we attempted to find Robinson-Trautman-type solutions of Einstein's equations representing gyratonic sources (matter field in the form of an aligned null fluid, or particles propagating with the speed of light, with an additional internal spin). Unfortunately, by making a mistake in our calculations, we came to the wrong conclusion that such solutions do not exist. We are now correcting this mistake. In fact, this allows us to explicitly find a new large family of gyratonic solutions in the Robinson-Trautman class of spacetim"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.02635","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":""},"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":"2026-05-17T23:54:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/DvAGmpDjvHqq2D2yTYjexpt+LP5vi5bdW3lSe8IZlU9VP3j6Rryvbbkv9qiKZIXzQgG+zuCUtTwwFNCAcmdAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T22:01:59.574659Z"},"content_sha256":"c5b14ed564a600f29b86a575d4b295f1107e376f77667eaca22f5c03fcd769fd","schema_version":"1.0","event_id":"sha256:c5b14ed564a600f29b86a575d4b295f1107e376f77667eaca22f5c03fcd769fd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/O2N36YDXNUHJZMH6GJEG3O2MPY/bundle.json","state_url":"https://pith.science/pith/O2N36YDXNUHJZMH6GJEG3O2MPY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/O2N36YDXNUHJZMH6GJEG3O2MPY/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":"2026-05-27T22:01:59Z","links":{"resolver":"https://pith.science/pith/O2N36YDXNUHJZMH6GJEG3O2MPY","bundle":"https://pith.science/pith/O2N36YDXNUHJZMH6GJEG3O2MPY/bundle.json","state":"https://pith.science/pith/O2N36YDXNUHJZMH6GJEG3O2MPY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/O2N36YDXNUHJZMH6GJEG3O2MPY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:O2N36YDXNUHJZMH6GJEG3O2MPY","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":"c3f64548551bcf28d235c366522a34e73c3fef388e582915e6a79410a2afabc6","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-12-06T16:15:01Z","title_canon_sha256":"9fb9d7e48185365ca9ef62707475efda7d0e158212db2b5ce1b1668fd6a6a9a2"},"schema_version":"1.0","source":{"id":"1812.02635","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.02635","created_at":"2026-05-17T23:54:08Z"},{"alias_kind":"arxiv_version","alias_value":"1812.02635v2","created_at":"2026-05-17T23:54:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.02635","created_at":"2026-05-17T23:54:08Z"},{"alias_kind":"pith_short_12","alias_value":"O2N36YDXNUHJ","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_16","alias_value":"O2N36YDXNUHJZMH6","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_8","alias_value":"O2N36YDX","created_at":"2026-05-18T12:32:40Z"}],"graph_snapshots":[{"event_id":"sha256:c5b14ed564a600f29b86a575d4b295f1107e376f77667eaca22f5c03fcd769fd","target":"graph","created_at":"2026-05-17T23:54:08Z","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":"In our previous paper [Phys. Rev. D 89 (2014) 124029], cited as [1], we attempted to find Robinson-Trautman-type solutions of Einstein's equations representing gyratonic sources (matter field in the form of an aligned null fluid, or particles propagating with the speed of light, with an additional internal spin). Unfortunately, by making a mistake in our calculations, we came to the wrong conclusion that such solutions do not exist. We are now correcting this mistake. In fact, this allows us to explicitly find a new large family of gyratonic solutions in the Robinson-Trautman class of spacetim","authors_text":"Jiri Podolsky, Robert Svarc","cross_cats":["hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-12-06T16:15:01Z","title":"Gyratons in the Robinson-Trautman and Kundt classes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.02635","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":"sha256:94da8b94a2d75f323515cb1726cf63ea32cada2e81311a1d179edac309f84881","target":"record","created_at":"2026-05-17T23:54:08Z","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":"c3f64548551bcf28d235c366522a34e73c3fef388e582915e6a79410a2afabc6","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-12-06T16:15:01Z","title_canon_sha256":"9fb9d7e48185365ca9ef62707475efda7d0e158212db2b5ce1b1668fd6a6a9a2"},"schema_version":"1.0","source":{"id":"1812.02635","kind":"arxiv","version":2}},"canonical_sha256":"769bbf60776d0e9cb0fe32486dbb4c7e0310911211d90cb6a3863aa4141b34aa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"769bbf60776d0e9cb0fe32486dbb4c7e0310911211d90cb6a3863aa4141b34aa","first_computed_at":"2026-05-17T23:54:08.288970Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:54:08.288970Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qOJ+YQSFVQyJsMMkeEkNi+Fdv0mF8NGeZfBnAVBmDVWRPvSU7s0wKBuUie4EM7xkQiMpFYVTM2bAEA7y6uOEAg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:54:08.289484Z","signed_message":"canonical_sha256_bytes"},"source_id":"1812.02635","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:94da8b94a2d75f323515cb1726cf63ea32cada2e81311a1d179edac309f84881","sha256:c5b14ed564a600f29b86a575d4b295f1107e376f77667eaca22f5c03fcd769fd"],"state_sha256":"b69da6f44fdb50933ec36ffee6e540efc43c0f60b3aaed622c09451288e3e2cc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0i2sh9IlNtwgphri+2r8zu2rugnyjdZEJ9tBuo3Wrtud/14DCuVDe6ejUJHTuuDdEQQH1ek42Wq+OMWei1g+BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T22:01:59.578426Z","bundle_sha256":"d317987735e065b4b8a452ffebd03a0c4d4174d9eb3bb3dd9279b098cf8d2a3b"}}