{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:E7WG6CXM7WXZKT3RXB2ZJYBSHG","short_pith_number":"pith:E7WG6CXM","schema_version":"1.0","canonical_sha256":"27ec6f0aecfdaf954f71b87594e03239aa3b519bf741f7186d53ab4d64d255d1","source":{"kind":"arxiv","id":"1812.05493","version":2},"attestation_state":"computed","paper":{"title":"Two-fluid solutions of particle-creation cosmologies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","hep-ph"],"primary_cat":"gr-qc","authors_text":"Andronikos Paliathanasis, John D. Barrow, Supriya Pan","submitted_at":"2018-12-13T15:59:51Z","abstract_excerpt":"Cosmological evolution driven incorporating continuous particle creation by the time-varying gravitational field is investigated. We consider a spatially flat, homogeneous and isotropic universe with two matter fluids in the context of general relativity. One fluid is endowed with gravitationally induced `adiabatic' particle creation, while the second fluid simply satisfies the conservation of energy. We show that the dynamics of the two fluids is entirely controlled by a single nonlinear differential equation involving the particle creation rate, $\\Gamma (t)$. We consider a very general parti"},"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":"1812.05493","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-12-13T15:59:51Z","cross_cats_sorted":["astro-ph.CO","hep-ph"],"title_canon_sha256":"2e3128455b1ce981a45203e091f36dfba98865d0522670df888838373a875464","abstract_canon_sha256":"d544b614059648b88653ab179fd5d3f668dddfd3aba0c79ab59a015351407cdb"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:53:23.601134Z","signature_b64":"NdHpt9tjJ8JTj0CwC/HozfwClVnqhOvkUeGbZrmFKUW9N77XeHiOfuDVK6BWHiEl4jZXfUa8gFA8bgAS39gJAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"27ec6f0aecfdaf954f71b87594e03239aa3b519bf741f7186d53ab4d64d255d1","last_reissued_at":"2026-05-17T23:53:23.600594Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:53:23.600594Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Two-fluid solutions of particle-creation cosmologies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","hep-ph"],"primary_cat":"gr-qc","authors_text":"Andronikos Paliathanasis, John D. Barrow, Supriya Pan","submitted_at":"2018-12-13T15:59:51Z","abstract_excerpt":"Cosmological evolution driven incorporating continuous particle creation by the time-varying gravitational field is investigated. We consider a spatially flat, homogeneous and isotropic universe with two matter fluids in the context of general relativity. One fluid is endowed with gravitationally induced `adiabatic' particle creation, while the second fluid simply satisfies the conservation of energy. We show that the dynamics of the two fluids is entirely controlled by a single nonlinear differential equation involving the particle creation rate, $\\Gamma (t)$. We consider a very general parti"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.05493","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1812.05493","created_at":"2026-05-17T23:53:23.600672+00:00"},{"alias_kind":"arxiv_version","alias_value":"1812.05493v2","created_at":"2026-05-17T23:53:23.600672+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.05493","created_at":"2026-05-17T23:53:23.600672+00:00"},{"alias_kind":"pith_short_12","alias_value":"E7WG6CXM7WXZ","created_at":"2026-05-18T12:32:22.470017+00:00"},{"alias_kind":"pith_short_16","alias_value":"E7WG6CXM7WXZKT3R","created_at":"2026-05-18T12:32:22.470017+00:00"},{"alias_kind":"pith_short_8","alias_value":"E7WG6CXM","created_at":"2026-05-18T12:32:22.470017+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2604.21770","citing_title":"Accelerating scaling solutions from dark matter particle creation","ref_index":118,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/E7WG6CXM7WXZKT3RXB2ZJYBSHG","json":"https://pith.science/pith/E7WG6CXM7WXZKT3RXB2ZJYBSHG.json","graph_json":"https://pith.science/api/pith-number/E7WG6CXM7WXZKT3RXB2ZJYBSHG/graph.json","events_json":"https://pith.science/api/pith-number/E7WG6CXM7WXZKT3RXB2ZJYBSHG/events.json","paper":"https://pith.science/paper/E7WG6CXM"},"agent_actions":{"view_html":"https://pith.science/pith/E7WG6CXM7WXZKT3RXB2ZJYBSHG","download_json":"https://pith.science/pith/E7WG6CXM7WXZKT3RXB2ZJYBSHG.json","view_paper":"https://pith.science/paper/E7WG6CXM","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1812.05493&json=true","fetch_graph":"https://pith.science/api/pith-number/E7WG6CXM7WXZKT3RXB2ZJYBSHG/graph.json","fetch_events":"https://pith.science/api/pith-number/E7WG6CXM7WXZKT3RXB2ZJYBSHG/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/E7WG6CXM7WXZKT3RXB2ZJYBSHG/action/timestamp_anchor","attest_storage":"https://pith.science/pith/E7WG6CXM7WXZKT3RXB2ZJYBSHG/action/storage_attestation","attest_author":"https://pith.science/pith/E7WG6CXM7WXZKT3RXB2ZJYBSHG/action/author_attestation","sign_citation":"https://pith.science/pith/E7WG6CXM7WXZKT3RXB2ZJYBSHG/action/citation_signature","submit_replication":"https://pith.science/pith/E7WG6CXM7WXZKT3RXB2ZJYBSHG/action/replication_record"}},"created_at":"2026-05-17T23:53:23.600672+00:00","updated_at":"2026-05-17T23:53:23.600672+00:00"}