{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2005:J6VB5UKARROS7QEBCC2IMFWJEN","short_pith_number":"pith:J6VB5UKA","schema_version":"1.0","canonical_sha256":"4faa1ed1408c5d2fc08110b48616c9235d8eb7f159b5321ac64ff72319a4d93d","source":{"kind":"arxiv","id":"astro-ph/0506392","version":1},"attestation_state":"computed","paper":{"title":"Cosmological constraints on a classical limit of quantum gravity","license":"","headline":"","cross_cats":["gr-qc","hep-th"],"primary_cat":"astro-ph","authors_text":"Damien A. Easson, Frederic P. Schuller, Mark Trodden, Mattias N.R. Wohlfarth","submitted_at":"2005-06-16T18:55:00Z","abstract_excerpt":"We investigate the cosmology of a recently proposed deformation of Einstein gravity, emerging from quantum gravity heuristics. The theory is constructed to have de Sitter space as a vacuum solution, and thus to be relevant to the accelerating universe. However, this solution turns out to be unstable, and the true phase space of cosmological solutions is significantly more complex, displaying two late-time power-law attractors -- one accelerating and the other dramatically decelerating. It is also shown that non-accelerating cosmologies sit on a separatrix between the two basins of attraction o"},"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":"astro-ph/0506392","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-06-16T18:55:00Z","cross_cats_sorted":["gr-qc","hep-th"],"title_canon_sha256":"a115d6e3bef0493462a50cbfe1602d099239f9c7483f8add519a7dfad7c7d02e","abstract_canon_sha256":"9350ea61d17619377c1fff235aeeac8e9d5aad8c484d08ee5911f4832abd85ea"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:52:34.661834Z","signature_b64":"NIQPxacUub5akfMcQGaZN+fbsssDCFLPhstVSDBkkmIxVmjnNW60FAp6gcd6VuGtN5wGJ22AoVzD3Ys0xcu7CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4faa1ed1408c5d2fc08110b48616c9235d8eb7f159b5321ac64ff72319a4d93d","last_reissued_at":"2026-07-04T16:52:34.661427Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:52:34.661427Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Cosmological constraints on a classical limit of quantum gravity","license":"","headline":"","cross_cats":["gr-qc","hep-th"],"primary_cat":"astro-ph","authors_text":"Damien A. Easson, Frederic P. Schuller, Mark Trodden, Mattias N.R. Wohlfarth","submitted_at":"2005-06-16T18:55:00Z","abstract_excerpt":"We investigate the cosmology of a recently proposed deformation of Einstein gravity, emerging from quantum gravity heuristics. The theory is constructed to have de Sitter space as a vacuum solution, and thus to be relevant to the accelerating universe. However, this solution turns out to be unstable, and the true phase space of cosmological solutions is significantly more complex, displaying two late-time power-law attractors -- one accelerating and the other dramatically decelerating. It is also shown that non-accelerating cosmologies sit on a separatrix between the two basins of attraction o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0506392","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/0506392/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"astro-ph/0506392","created_at":"2026-07-04T16:52:34.661494+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0506392v1","created_at":"2026-07-04T16:52:34.661494+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0506392","created_at":"2026-07-04T16:52:34.661494+00:00"},{"alias_kind":"pith_short_12","alias_value":"J6VB5UKARROS","created_at":"2026-07-04T16:52:34.661494+00:00"},{"alias_kind":"pith_short_16","alias_value":"J6VB5UKARROS7QEB","created_at":"2026-07-04T16:52:34.661494+00:00"},{"alias_kind":"pith_short_8","alias_value":"J6VB5UKA","created_at":"2026-07-04T16:52:34.661494+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/J6VB5UKARROS7QEBCC2IMFWJEN","json":"https://pith.science/pith/J6VB5UKARROS7QEBCC2IMFWJEN.json","graph_json":"https://pith.science/api/pith-number/J6VB5UKARROS7QEBCC2IMFWJEN/graph.json","events_json":"https://pith.science/api/pith-number/J6VB5UKARROS7QEBCC2IMFWJEN/events.json","paper":"https://pith.science/paper/J6VB5UKA"},"agent_actions":{"view_html":"https://pith.science/pith/J6VB5UKARROS7QEBCC2IMFWJEN","download_json":"https://pith.science/pith/J6VB5UKARROS7QEBCC2IMFWJEN.json","view_paper":"https://pith.science/paper/J6VB5UKA","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0506392&json=true","fetch_graph":"https://pith.science/api/pith-number/J6VB5UKARROS7QEBCC2IMFWJEN/graph.json","fetch_events":"https://pith.science/api/pith-number/J6VB5UKARROS7QEBCC2IMFWJEN/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/J6VB5UKARROS7QEBCC2IMFWJEN/action/timestamp_anchor","attest_storage":"https://pith.science/pith/J6VB5UKARROS7QEBCC2IMFWJEN/action/storage_attestation","attest_author":"https://pith.science/pith/J6VB5UKARROS7QEBCC2IMFWJEN/action/author_attestation","sign_citation":"https://pith.science/pith/J6VB5UKARROS7QEBCC2IMFWJEN/action/citation_signature","submit_replication":"https://pith.science/pith/J6VB5UKARROS7QEBCC2IMFWJEN/action/replication_record"}},"created_at":"2026-07-04T16:52:34.661494+00:00","updated_at":"2026-07-04T16:52:34.661494+00:00"}