{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2007:PRQJ24P4AVQJT54IF3VMPVPXDD","short_pith_number":"pith:PRQJ24P4","schema_version":"1.0","canonical_sha256":"7c609d71fc056099f7882eeac7d5f718df1062f39d5f1858e7538fc95ed93c05","source":{"kind":"arxiv","id":"0712.1820","version":2},"attestation_state":"computed","paper":{"title":"Geometric Precipices in String Cosmology","license":"","headline":"","cross_cats":["astro-ph","gr-qc","hep-ph"],"primary_cat":"hep-th","authors_text":"Nemanja Kaloper, Scott Watson","submitted_at":"2007-12-12T03:53:52Z","abstract_excerpt":"We consider the effects of graviton multiplet fields on transitions between string gas phases. Focusing on the dilaton field, we show that it may obstruct transitions between different thermodynamic phases of the string gas, because the sign of its dimensionally reduced, $T$-duality invariant, part is conserved when the energy density of the universe is positive. Thus, many interesting solutions for which this sign is positive end up in a future curvature singularity. Because of this, some of the thermodynamic phases of the usual gravitating string gases behave like superselection sectors. For"},"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":"0712.1820","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-th","submitted_at":"2007-12-12T03:53:52Z","cross_cats_sorted":["astro-ph","gr-qc","hep-ph"],"title_canon_sha256":"38453880c6c28002ccbf27c49a995b0cf94e70267b688fa8cc67bd69e376b6a2","abstract_canon_sha256":"9c46367cb64d622186d1efcde90db4faf249abc7dac79d3cae8c6448778f1ad9"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:28:03.272596Z","signature_b64":"ZOHtPGq1dr9qSnDM/ncSHb9XBikrOj+00hliDtlPCD8wSbdiHYIAIxNw+PI6VfkGFqiWf57N8GhpiFrkYvyrAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7c609d71fc056099f7882eeac7d5f718df1062f39d5f1858e7538fc95ed93c05","last_reissued_at":"2026-07-04T15:28:03.272182Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:28:03.272182Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Geometric Precipices in String Cosmology","license":"","headline":"","cross_cats":["astro-ph","gr-qc","hep-ph"],"primary_cat":"hep-th","authors_text":"Nemanja Kaloper, Scott Watson","submitted_at":"2007-12-12T03:53:52Z","abstract_excerpt":"We consider the effects of graviton multiplet fields on transitions between string gas phases. Focusing on the dilaton field, we show that it may obstruct transitions between different thermodynamic phases of the string gas, because the sign of its dimensionally reduced, $T$-duality invariant, part is conserved when the energy density of the universe is positive. Thus, many interesting solutions for which this sign is positive end up in a future curvature singularity. Because of this, some of the thermodynamic phases of the usual gravitating string gases behave like superselection sectors. For"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0712.1820","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/0712.1820/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":"0712.1820","created_at":"2026-07-04T15:28:03.272242+00:00"},{"alias_kind":"arxiv_version","alias_value":"0712.1820v2","created_at":"2026-07-04T15:28:03.272242+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0712.1820","created_at":"2026-07-04T15:28:03.272242+00:00"},{"alias_kind":"pith_short_12","alias_value":"PRQJ24P4AVQJ","created_at":"2026-07-04T15:28:03.272242+00:00"},{"alias_kind":"pith_short_16","alias_value":"PRQJ24P4AVQJT54I","created_at":"2026-07-04T15:28:03.272242+00:00"},{"alias_kind":"pith_short_8","alias_value":"PRQJ24P4","created_at":"2026-07-04T15:28:03.272242+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2606.13611","citing_title":"Cosmological Dynamics of the Thermal Scalar Near the Hagedorn Temperature","ref_index":6,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/PRQJ24P4AVQJT54IF3VMPVPXDD","json":"https://pith.science/pith/PRQJ24P4AVQJT54IF3VMPVPXDD.json","graph_json":"https://pith.science/api/pith-number/PRQJ24P4AVQJT54IF3VMPVPXDD/graph.json","events_json":"https://pith.science/api/pith-number/PRQJ24P4AVQJT54IF3VMPVPXDD/events.json","paper":"https://pith.science/paper/PRQJ24P4"},"agent_actions":{"view_html":"https://pith.science/pith/PRQJ24P4AVQJT54IF3VMPVPXDD","download_json":"https://pith.science/pith/PRQJ24P4AVQJT54IF3VMPVPXDD.json","view_paper":"https://pith.science/paper/PRQJ24P4","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0712.1820&json=true","fetch_graph":"https://pith.science/api/pith-number/PRQJ24P4AVQJT54IF3VMPVPXDD/graph.json","fetch_events":"https://pith.science/api/pith-number/PRQJ24P4AVQJT54IF3VMPVPXDD/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/PRQJ24P4AVQJT54IF3VMPVPXDD/action/timestamp_anchor","attest_storage":"https://pith.science/pith/PRQJ24P4AVQJT54IF3VMPVPXDD/action/storage_attestation","attest_author":"https://pith.science/pith/PRQJ24P4AVQJT54IF3VMPVPXDD/action/author_attestation","sign_citation":"https://pith.science/pith/PRQJ24P4AVQJT54IF3VMPVPXDD/action/citation_signature","submit_replication":"https://pith.science/pith/PRQJ24P4AVQJT54IF3VMPVPXDD/action/replication_record"}},"created_at":"2026-07-04T15:28:03.272242+00:00","updated_at":"2026-07-04T15:28:03.272242+00:00"}