{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:RXO56AFBGH4TZRYJVKBMN46H55","short_pith_number":"pith:RXO56AFB","schema_version":"1.0","canonical_sha256":"8ddddf00a131f93cc709aa82c6f3c7ef43a4f3e015f645c87c789860e1e541b6","source":{"kind":"arxiv","id":"1904.06727","version":1},"attestation_state":"computed","paper":{"title":"Rotating cylinders with anisotropic fluids in general relativity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"K.A. Bronnikov, M.V. Skvortsova, S.V. Bolokhov","submitted_at":"2019-04-14T17:13:02Z","abstract_excerpt":"We consider anisotropic fluids with directional pressures $p_i = w_i \\rho$ ($\\rho$ is the density, $w_i = $const, $i = 1,2,3$) as sources of gravity in stationary cylindrically symmetric space-times. We describe a general way of obtaining exact solutions with such sources, where the main features are splitting of the Ricci tensor into static and rotational parts and using the harmonic radial coordinate. Depending on the values of $w_i$, it appears possible to obtain general or special solutions to the Einstein equations, thus recovering some known solutions and finding new ones. Three particul"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1904.06727","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2019-04-14T17:13:02Z","cross_cats_sorted":[],"title_canon_sha256":"110a922f97574a3229e2e14dea754bbdd524176df4fa108c701c16f219ca723b","abstract_canon_sha256":"4da7f6dc5a9096215b4a4e64b53030f78cf82cec1cce4642d9dbc0bdf406d25a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:43:02.579983Z","signature_b64":"Ke+60RhZXMwalUHxePLHPYgtK78rErX/2tcxrJSXT/xs0pevG9qZMy2NUDoGpFzD+TJmic7nm3LVd73k/XOwBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8ddddf00a131f93cc709aa82c6f3c7ef43a4f3e015f645c87c789860e1e541b6","last_reissued_at":"2026-05-17T23:43:02.579551Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:43:02.579551Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Rotating cylinders with anisotropic fluids in general relativity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"K.A. Bronnikov, M.V. Skvortsova, S.V. Bolokhov","submitted_at":"2019-04-14T17:13:02Z","abstract_excerpt":"We consider anisotropic fluids with directional pressures $p_i = w_i \\rho$ ($\\rho$ is the density, $w_i = $const, $i = 1,2,3$) as sources of gravity in stationary cylindrically symmetric space-times. We describe a general way of obtaining exact solutions with such sources, where the main features are splitting of the Ricci tensor into static and rotational parts and using the harmonic radial coordinate. Depending on the values of $w_i$, it appears possible to obtain general or special solutions to the Einstein equations, thus recovering some known solutions and finding new ones. Three particul"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.06727","kind":"arxiv","version":1},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1904.06727","created_at":"2026-05-17T23:43:02.579626+00:00"},{"alias_kind":"arxiv_version","alias_value":"1904.06727v1","created_at":"2026-05-17T23:43:02.579626+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.06727","created_at":"2026-05-17T23:43:02.579626+00:00"},{"alias_kind":"pith_short_12","alias_value":"RXO56AFBGH4T","created_at":"2026-05-18T12:33:27.125529+00:00"},{"alias_kind":"pith_short_16","alias_value":"RXO56AFBGH4TZRYJ","created_at":"2026-05-18T12:33:27.125529+00:00"},{"alias_kind":"pith_short_8","alias_value":"RXO56AFB","created_at":"2026-05-18T12:33:27.125529+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/RXO56AFBGH4TZRYJVKBMN46H55","json":"https://pith.science/pith/RXO56AFBGH4TZRYJVKBMN46H55.json","graph_json":"https://pith.science/api/pith-number/RXO56AFBGH4TZRYJVKBMN46H55/graph.json","events_json":"https://pith.science/api/pith-number/RXO56AFBGH4TZRYJVKBMN46H55/events.json","paper":"https://pith.science/paper/RXO56AFB"},"agent_actions":{"view_html":"https://pith.science/pith/RXO56AFBGH4TZRYJVKBMN46H55","download_json":"https://pith.science/pith/RXO56AFBGH4TZRYJVKBMN46H55.json","view_paper":"https://pith.science/paper/RXO56AFB","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1904.06727&json=true","fetch_graph":"https://pith.science/api/pith-number/RXO56AFBGH4TZRYJVKBMN46H55/graph.json","fetch_events":"https://pith.science/api/pith-number/RXO56AFBGH4TZRYJVKBMN46H55/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/RXO56AFBGH4TZRYJVKBMN46H55/action/timestamp_anchor","attest_storage":"https://pith.science/pith/RXO56AFBGH4TZRYJVKBMN46H55/action/storage_attestation","attest_author":"https://pith.science/pith/RXO56AFBGH4TZRYJVKBMN46H55/action/author_attestation","sign_citation":"https://pith.science/pith/RXO56AFBGH4TZRYJVKBMN46H55/action/citation_signature","submit_replication":"https://pith.science/pith/RXO56AFBGH4TZRYJVKBMN46H55/action/replication_record"}},"created_at":"2026-05-17T23:43:02.579626+00:00","updated_at":"2026-05-17T23:43:02.579626+00:00"}