{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2021:7L45ZXPQLQYNISHWAFQETFZCDC","short_pith_number":"pith:7L45ZXPQ","schema_version":"1.0","canonical_sha256":"faf9dcddf05c30d448f6016049972218a10ccd5ef9da08a4664b84a415bffbb8","source":{"kind":"arxiv","id":"2108.09524","version":3},"attestation_state":"computed","paper":{"title":"Classical and Semiclassical Stability of Emergent Universes in Jordan-Brans-Dicke Theory","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.CO","hep-th"],"primary_cat":"gr-qc","authors_text":"Juan Ortiz, Pedro Labra\\~na","submitted_at":"2021-08-21T15:01:47Z","abstract_excerpt":"The Emergent Universe scenario is based on the assumption that the universe originates from a past-eternal Einstein static (ES) state, subsequently evolving toward an inflationary phase and a hot Big Bang era. Such models are appealing as they provide nonsingular and geodesically complete cosmological histories. However, it has been argued by Mithani and Vilenkin that, even when the ES state is classically stable, certain models can admit semiclassical tunneling channels leading to quantum decay toward configurations of vanishing scale factor. In this work, we investigate the classical and sem"},"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":"2108.09524","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2021-08-21T15:01:47Z","cross_cats_sorted":["astro-ph.CO","hep-th"],"title_canon_sha256":"f2e87bdaedf7ba11bebafeb8e7c4f0402b33258a91cd7d4e3a59a1e2a00395ef","abstract_canon_sha256":"2887bc1316f1679c7768c16b998b9fe503af1d8b1472c7f1ce53a3cbe41f540b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-20T01:04:47.568126Z","signature_b64":"oNajBDRRlOQKe7EtR/YJGcK7kybzUQTmObLLzhPHUSD1V5k1iWtZXmQVqjdkbhTOXL/qpAh70VAsnZYtrOD7Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"faf9dcddf05c30d448f6016049972218a10ccd5ef9da08a4664b84a415bffbb8","last_reissued_at":"2026-05-20T01:04:47.567527Z","signature_status":"signed_v1","first_computed_at":"2026-05-20T01:04:47.567527Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Classical and Semiclassical Stability of Emergent Universes in Jordan-Brans-Dicke Theory","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.CO","hep-th"],"primary_cat":"gr-qc","authors_text":"Juan Ortiz, Pedro Labra\\~na","submitted_at":"2021-08-21T15:01:47Z","abstract_excerpt":"The Emergent Universe scenario is based on the assumption that the universe originates from a past-eternal Einstein static (ES) state, subsequently evolving toward an inflationary phase and a hot Big Bang era. Such models are appealing as they provide nonsingular and geodesically complete cosmological histories. However, it has been argued by Mithani and Vilenkin that, even when the ES state is classically stable, certain models can admit semiclassical tunneling channels leading to quantum decay toward configurations of vanishing scale factor. In this work, we investigate the classical and sem"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.09524","kind":"arxiv","version":3},"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/2108.09524/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":"2108.09524","created_at":"2026-05-20T01:04:47.567602+00:00"},{"alias_kind":"arxiv_version","alias_value":"2108.09524v3","created_at":"2026-05-20T01:04:47.567602+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.09524","created_at":"2026-05-20T01:04:47.567602+00:00"},{"alias_kind":"pith_short_12","alias_value":"7L45ZXPQLQYN","created_at":"2026-05-20T01:04:47.567602+00:00"},{"alias_kind":"pith_short_16","alias_value":"7L45ZXPQLQYNISHW","created_at":"2026-05-20T01:04:47.567602+00:00"},{"alias_kind":"pith_short_8","alias_value":"7L45ZXPQ","created_at":"2026-05-20T01:04:47.567602+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/7L45ZXPQLQYNISHWAFQETFZCDC","json":"https://pith.science/pith/7L45ZXPQLQYNISHWAFQETFZCDC.json","graph_json":"https://pith.science/api/pith-number/7L45ZXPQLQYNISHWAFQETFZCDC/graph.json","events_json":"https://pith.science/api/pith-number/7L45ZXPQLQYNISHWAFQETFZCDC/events.json","paper":"https://pith.science/paper/7L45ZXPQ"},"agent_actions":{"view_html":"https://pith.science/pith/7L45ZXPQLQYNISHWAFQETFZCDC","download_json":"https://pith.science/pith/7L45ZXPQLQYNISHWAFQETFZCDC.json","view_paper":"https://pith.science/paper/7L45ZXPQ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2108.09524&json=true","fetch_graph":"https://pith.science/api/pith-number/7L45ZXPQLQYNISHWAFQETFZCDC/graph.json","fetch_events":"https://pith.science/api/pith-number/7L45ZXPQLQYNISHWAFQETFZCDC/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/7L45ZXPQLQYNISHWAFQETFZCDC/action/timestamp_anchor","attest_storage":"https://pith.science/pith/7L45ZXPQLQYNISHWAFQETFZCDC/action/storage_attestation","attest_author":"https://pith.science/pith/7L45ZXPQLQYNISHWAFQETFZCDC/action/author_attestation","sign_citation":"https://pith.science/pith/7L45ZXPQLQYNISHWAFQETFZCDC/action/citation_signature","submit_replication":"https://pith.science/pith/7L45ZXPQLQYNISHWAFQETFZCDC/action/replication_record"}},"created_at":"2026-05-20T01:04:47.567602+00:00","updated_at":"2026-05-20T01:04:47.567602+00:00"}