{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:JXU6QDLQ3OUF3X6JDMJP5GS4EL","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":"d1e49dde732038e35bc1b642b8e0e7ca4b753023a77681d8e050d342f4a858b0","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2010-07-19T22:27:33Z","title_canon_sha256":"8847aafd19d84baa6feda225f7d4a47e88b12dfa5d667366bb0ecd68dce0ff45"},"schema_version":"1.0","source":{"id":"1007.3299","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1007.3299","created_at":"2026-05-18T04:25:49Z"},{"alias_kind":"arxiv_version","alias_value":"1007.3299v2","created_at":"2026-05-18T04:25:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1007.3299","created_at":"2026-05-18T04:25:49Z"},{"alias_kind":"pith_short_12","alias_value":"JXU6QDLQ3OUF","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_16","alias_value":"JXU6QDLQ3OUF3X6J","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_8","alias_value":"JXU6QDLQ","created_at":"2026-05-18T12:26:09Z"}],"graph_snapshots":[{"event_id":"sha256:568e1abc4e34cc4fbacbcb4a8c7cb67963b7a5ffab571d8248e486dabd64b1fc","target":"graph","created_at":"2026-05-18T04:25:49Z","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":"In this paper, we investigate the back-reaction of $U(1)$ gauge fields into a class of inflationary settings. To be more precise, we employ a Bianchi-I geometry (taken as an anisotropic perturbation of a flat FRW model) within two types of Born-Infeld theories. Firstly we consider pure Born-Infeld electromagnetism. For either a constant or a $b(\\phi)$ coupling, inflationary trajectories are modified but anisotropies increase; In particular, for the former coupling we find that a quadratic inflaton potential, within a constant ratio for the scalar and gauge energy densities, does not induce suf","authors_text":"John Ward, Paulo Vargas Moniz","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2010-07-19T22:27:33Z","title":"Gauge field back-reaction in Born Infeld cosmologies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1007.3299","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:a84f1c93f6a7cd4772f3701681db5d98b9461e5755603f5b7fbedd6dfad27e5b","target":"record","created_at":"2026-05-18T04:25:49Z","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":"d1e49dde732038e35bc1b642b8e0e7ca4b753023a77681d8e050d342f4a858b0","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2010-07-19T22:27:33Z","title_canon_sha256":"8847aafd19d84baa6feda225f7d4a47e88b12dfa5d667366bb0ecd68dce0ff45"},"schema_version":"1.0","source":{"id":"1007.3299","kind":"arxiv","version":2}},"canonical_sha256":"4de9e80d70dba85ddfc91b12fe9a5c22c8008a596c42e159675ac090e394c7c8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4de9e80d70dba85ddfc91b12fe9a5c22c8008a596c42e159675ac090e394c7c8","first_computed_at":"2026-05-18T04:25:49.795016Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:25:49.795016Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Fm09X1tkBpKUtDKkGaZR70LwIyEPNEDeU4Ok8TuvxLVrz6lal0SZCHHNyKRkAGao8nhyA3I8O+0WT+kQHzEVBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:25:49.795850Z","signed_message":"canonical_sha256_bytes"},"source_id":"1007.3299","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a84f1c93f6a7cd4772f3701681db5d98b9461e5755603f5b7fbedd6dfad27e5b","sha256:568e1abc4e34cc4fbacbcb4a8c7cb67963b7a5ffab571d8248e486dabd64b1fc"],"state_sha256":"c14a80c17ddae18059b46f50df02caa57f6c35cb9d102288d64fede5e575946a"}