{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1995:PGKMC5BJ5UZPOSVJ4FCMPMCKHF","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":"0805ac02465b717b349684303f7daac652fc92313ead3021b50132fb6b0ab387","cross_cats_sorted":["astro-ph"],"license":"","primary_cat":"gr-qc","submitted_at":"1995-10-19T18:09:33Z","title_canon_sha256":"35ffba174bf748f4f1bb6c99b0c46d4a3df9893e233fc2924adc3ed5c83e9df9"},"schema_version":"1.0","source":{"id":"gr-qc/9510041","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"gr-qc/9510041","created_at":"2026-05-18T01:06:44Z"},{"alias_kind":"arxiv_version","alias_value":"gr-qc/9510041v2","created_at":"2026-05-18T01:06:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.gr-qc/9510041","created_at":"2026-05-18T01:06:44Z"},{"alias_kind":"pith_short_12","alias_value":"PGKMC5BJ5UZP","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_16","alias_value":"PGKMC5BJ5UZPOSVJ","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_8","alias_value":"PGKMC5BJ","created_at":"2026-05-18T12:25:47Z"}],"graph_snapshots":[{"event_id":"sha256:2487a4d064b5eb454bdef76acaaccfcf9a08ac673963e17b3b89f9df673557f0","target":"graph","created_at":"2026-05-18T01:06:44Z","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":"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","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)","cross_cats":["astro-ph"],"headline":"","license":"","primary_cat":"gr-qc","submitted_at":"1995-10-19T18:09:33Z","title":"The Oscillating Universe: an Alternative to Inflation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"gr-qc/9510041","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":"sha256:8d5e89129c144bcbb43d6c1f686304e71d1636ba1eec566275890648765209a1","target":"record","created_at":"2026-05-18T01:06:44Z","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":"0805ac02465b717b349684303f7daac652fc92313ead3021b50132fb6b0ab387","cross_cats_sorted":["astro-ph"],"license":"","primary_cat":"gr-qc","submitted_at":"1995-10-19T18:09:33Z","title_canon_sha256":"35ffba174bf748f4f1bb6c99b0c46d4a3df9893e233fc2924adc3ed5c83e9df9"},"schema_version":"1.0","source":{"id":"gr-qc/9510041","kind":"arxiv","version":2}},"canonical_sha256":"7994c17429ed32f74aa9e144c7b04a3950fe4c73f0a2adbc46b8202ed82de5e1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7994c17429ed32f74aa9e144c7b04a3950fe4c73f0a2adbc46b8202ed82de5e1","first_computed_at":"2026-05-18T01:06:44.749853Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:06:44.749853Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NU20T/N1FLdfSgru38xgLBF194sArCrzt0LVaKvJss6mL56z6zTQS5CUJEwtmJoE6XsENigkTYmRl7VnFqRADQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:06:44.750290Z","signed_message":"canonical_sha256_bytes"},"source_id":"gr-qc/9510041","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8d5e89129c144bcbb43d6c1f686304e71d1636ba1eec566275890648765209a1","sha256:2487a4d064b5eb454bdef76acaaccfcf9a08ac673963e17b3b89f9df673557f0"],"state_sha256":"28dbc54af10a5164e5b1a1828ba6162801c48b6ecb0933e99b950d0da6bd4ba4"}