{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:1995:PGKMC5BJ5UZPOSVJ4FCMPMCKHF","short_pith_number":"pith:PGKMC5BJ","schema_version":"1.0","canonical_sha256":"7994c17429ed32f74aa9e144c7b04a3950fe4c73f0a2adbc46b8202ed82de5e1","source":{"kind":"arxiv","id":"gr-qc/9510041","version":2},"attestation_state":"computed","paper":{"title":"The Oscillating Universe: an Alternative to Inflation","license":"","headline":"","cross_cats":["astro-ph"],"primary_cat":"gr-qc","authors_text":"Joachim Laukenmann (Institut f\\\"ur Theoretische Physik, Ruth Durrer (D\\'epartement de Physique Theorique, Universit\\\"at Z\\\"urich), Universit\\'e de Gen\\`eve)","submitted_at":"1995-10-19T18:09:33Z","abstract_excerpt":"The aim of this paper is to show, that the 'oscillating universe' is a viable alternative to inflation. We remind that this model provides a natural solution to the flatness or entropy and to the horizon problem of standard cosmology. We study the evolution of density perturbations and determine the power spectrum in a closed universe. The results lead to constraints of how a previous cycle might have looked like. We argue that most of the radiation entropy of the present universe may have originated from gravitational entropy produced in a previous cycle.\n We show that measurements of the pow"},"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":"gr-qc/9510041","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"gr-qc","submitted_at":"1995-10-19T18:09:33Z","cross_cats_sorted":["astro-ph"],"title_canon_sha256":"35ffba174bf748f4f1bb6c99b0c46d4a3df9893e233fc2924adc3ed5c83e9df9","abstract_canon_sha256":"0805ac02465b717b349684303f7daac652fc92313ead3021b50132fb6b0ab387"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:06:44.750290Z","signature_b64":"NU20T/N1FLdfSgru38xgLBF194sArCrzt0LVaKvJss6mL56z6zTQS5CUJEwtmJoE6XsENigkTYmRl7VnFqRADQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7994c17429ed32f74aa9e144c7b04a3950fe4c73f0a2adbc46b8202ed82de5e1","last_reissued_at":"2026-05-18T01:06:44.749853Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:06:44.749853Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The Oscillating Universe: an Alternative to Inflation","license":"","headline":"","cross_cats":["astro-ph"],"primary_cat":"gr-qc","authors_text":"Joachim Laukenmann (Institut f\\\"ur Theoretische Physik, Ruth Durrer (D\\'epartement de Physique Theorique, Universit\\\"at Z\\\"urich), Universit\\'e de Gen\\`eve)","submitted_at":"1995-10-19T18:09:33Z","abstract_excerpt":"The aim of this paper is to show, that the 'oscillating universe' is a viable alternative to inflation. We remind that this model provides a natural solution to the flatness or entropy and to the horizon problem of standard cosmology. We study the evolution of density perturbations and determine the power spectrum in a closed universe. The results lead to constraints of how a previous cycle might have looked like. We argue that most of the radiation entropy of the present universe may have originated from gravitational entropy produced in a previous cycle.\n We show that measurements of the pow"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"gr-qc/9510041","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":"gr-qc/9510041","created_at":"2026-05-18T01:06:44.749921+00:00"},{"alias_kind":"arxiv_version","alias_value":"gr-qc/9510041v2","created_at":"2026-05-18T01:06:44.749921+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.gr-qc/9510041","created_at":"2026-05-18T01:06:44.749921+00:00"},{"alias_kind":"pith_short_12","alias_value":"PGKMC5BJ5UZP","created_at":"2026-05-18T12:25:47.700082+00:00"},{"alias_kind":"pith_short_16","alias_value":"PGKMC5BJ5UZPOSVJ","created_at":"2026-05-18T12:25:47.700082+00:00"},{"alias_kind":"pith_short_8","alias_value":"PGKMC5BJ","created_at":"2026-05-18T12:25:47.700082+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2412.21087","citing_title":"Inflation after Curvature Bounce","ref_index":6,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/PGKMC5BJ5UZPOSVJ4FCMPMCKHF","json":"https://pith.science/pith/PGKMC5BJ5UZPOSVJ4FCMPMCKHF.json","graph_json":"https://pith.science/api/pith-number/PGKMC5BJ5UZPOSVJ4FCMPMCKHF/graph.json","events_json":"https://pith.science/api/pith-number/PGKMC5BJ5UZPOSVJ4FCMPMCKHF/events.json","paper":"https://pith.science/paper/PGKMC5BJ"},"agent_actions":{"view_html":"https://pith.science/pith/PGKMC5BJ5UZPOSVJ4FCMPMCKHF","download_json":"https://pith.science/pith/PGKMC5BJ5UZPOSVJ4FCMPMCKHF.json","view_paper":"https://pith.science/paper/PGKMC5BJ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=gr-qc/9510041&json=true","fetch_graph":"https://pith.science/api/pith-number/PGKMC5BJ5UZPOSVJ4FCMPMCKHF/graph.json","fetch_events":"https://pith.science/api/pith-number/PGKMC5BJ5UZPOSVJ4FCMPMCKHF/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/PGKMC5BJ5UZPOSVJ4FCMPMCKHF/action/timestamp_anchor","attest_storage":"https://pith.science/pith/PGKMC5BJ5UZPOSVJ4FCMPMCKHF/action/storage_attestation","attest_author":"https://pith.science/pith/PGKMC5BJ5UZPOSVJ4FCMPMCKHF/action/author_attestation","sign_citation":"https://pith.science/pith/PGKMC5BJ5UZPOSVJ4FCMPMCKHF/action/citation_signature","submit_replication":"https://pith.science/pith/PGKMC5BJ5UZPOSVJ4FCMPMCKHF/action/replication_record"}},"created_at":"2026-05-18T01:06:44.749921+00:00","updated_at":"2026-05-18T01:06:44.749921+00:00"}