{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:QY6FHDU5L57QGSKMGV7JJ52LZL","short_pith_number":"pith:QY6FHDU5","schema_version":"1.0","canonical_sha256":"863c538e9d5f7f03494c357e94f74bcadceb711a37804dcdb35c632e90089dfd","source":{"kind":"arxiv","id":"0912.4421","version":2},"attestation_state":"computed","paper":{"title":"Thermal Relics in Modified Cosmologies: Bounds on Evolution Histories of the Early Universe and Cosmological Boosts for PAMELA","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph.CO","authors_text":"A. Masiero (Padova Univ., IAP/Paris, INFN/Padova), INFN/Torino), L. Pieri (Padova Univ., M. Pato (Padova Univ., N. Fornengo (Torino Univ., R. Catena (Heidelberg Univ.), Univ. de Paris VII)","submitted_at":"2009-12-22T16:34:26Z","abstract_excerpt":"Alternative cosmologies, based on extensions of General Relativity, predict modified thermal histories in the Early Universe during the pre Big Bang Nucleosynthesis (BBN) era, epoch which is not directly constrained by cosmological observations. When the expansion rate is enhanced with respect to the standard case, thermal relics typically decouple with larger relic abundances. The correct value of the relic abundance is therefore obtained for larger annihilation cross--sections, as compared to standard cosmology. A direct consequence is that indirect detection rates are enhanced. Extending pr"},"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":"0912.4421","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-12-22T16:34:26Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"2c1e9fcee0ad27dbcc5a701543eb92fb3741cf5a692748d30206007fd7a061fb","abstract_canon_sha256":"8562e4724a5f79a7dad3855b79ae209e07fa46c166f069cfe00f7952ab2db31d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:24:45.488837Z","signature_b64":"LW4HUrJhUXehh96g17JE9Rq0f6YAZnwqmxCZiDPBtSn/HoF20dzP7uGhYi0XIAfF5P6Q7kJbCQJB7r+D9m+iDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"863c538e9d5f7f03494c357e94f74bcadceb711a37804dcdb35c632e90089dfd","last_reissued_at":"2026-05-18T02:24:45.488156Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:24:45.488156Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Thermal Relics in Modified Cosmologies: Bounds on Evolution Histories of the Early Universe and Cosmological Boosts for PAMELA","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph.CO","authors_text":"A. Masiero (Padova Univ., IAP/Paris, INFN/Padova), INFN/Torino), L. Pieri (Padova Univ., M. Pato (Padova Univ., N. Fornengo (Torino Univ., R. Catena (Heidelberg Univ.), Univ. de Paris VII)","submitted_at":"2009-12-22T16:34:26Z","abstract_excerpt":"Alternative cosmologies, based on extensions of General Relativity, predict modified thermal histories in the Early Universe during the pre Big Bang Nucleosynthesis (BBN) era, epoch which is not directly constrained by cosmological observations. When the expansion rate is enhanced with respect to the standard case, thermal relics typically decouple with larger relic abundances. The correct value of the relic abundance is therefore obtained for larger annihilation cross--sections, as compared to standard cosmology. A direct consequence is that indirect detection rates are enhanced. Extending pr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0912.4421","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":"0912.4421","created_at":"2026-05-18T02:24:45.488246+00:00"},{"alias_kind":"arxiv_version","alias_value":"0912.4421v2","created_at":"2026-05-18T02:24:45.488246+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0912.4421","created_at":"2026-05-18T02:24:45.488246+00:00"},{"alias_kind":"pith_short_12","alias_value":"QY6FHDU5L57Q","created_at":"2026-05-18T12:26:01.383474+00:00"},{"alias_kind":"pith_short_16","alias_value":"QY6FHDU5L57QGSKM","created_at":"2026-05-18T12:26:01.383474+00:00"},{"alias_kind":"pith_short_8","alias_value":"QY6FHDU5","created_at":"2026-05-18T12:26:01.383474+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":2,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2605.21050","citing_title":"Constraints on Kaniadakis Cosmology from Starobinsky Inflation and Primordial Tensor Perturbations","ref_index":70,"is_internal_anchor":true},{"citing_arxiv_id":"2604.05362","citing_title":"Towards Testable Type-III Leptogenesis in Non-Standard Early Universe Scenarios","ref_index":46,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/QY6FHDU5L57QGSKMGV7JJ52LZL","json":"https://pith.science/pith/QY6FHDU5L57QGSKMGV7JJ52LZL.json","graph_json":"https://pith.science/api/pith-number/QY6FHDU5L57QGSKMGV7JJ52LZL/graph.json","events_json":"https://pith.science/api/pith-number/QY6FHDU5L57QGSKMGV7JJ52LZL/events.json","paper":"https://pith.science/paper/QY6FHDU5"},"agent_actions":{"view_html":"https://pith.science/pith/QY6FHDU5L57QGSKMGV7JJ52LZL","download_json":"https://pith.science/pith/QY6FHDU5L57QGSKMGV7JJ52LZL.json","view_paper":"https://pith.science/paper/QY6FHDU5","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0912.4421&json=true","fetch_graph":"https://pith.science/api/pith-number/QY6FHDU5L57QGSKMGV7JJ52LZL/graph.json","fetch_events":"https://pith.science/api/pith-number/QY6FHDU5L57QGSKMGV7JJ52LZL/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/QY6FHDU5L57QGSKMGV7JJ52LZL/action/timestamp_anchor","attest_storage":"https://pith.science/pith/QY6FHDU5L57QGSKMGV7JJ52LZL/action/storage_attestation","attest_author":"https://pith.science/pith/QY6FHDU5L57QGSKMGV7JJ52LZL/action/author_attestation","sign_citation":"https://pith.science/pith/QY6FHDU5L57QGSKMGV7JJ52LZL/action/citation_signature","submit_replication":"https://pith.science/pith/QY6FHDU5L57QGSKMGV7JJ52LZL/action/replication_record"}},"created_at":"2026-05-18T02:24:45.488246+00:00","updated_at":"2026-05-18T02:24:45.488246+00:00"}