{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:WMMRL46LGTDKRUIMRB75PYPF2U","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":"65ae4e9ac54a399cb043f12dd97e4457c02ba099c2d0a9872d9ea06b05936610","cross_cats_sorted":["gr-qc","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2026-06-10T11:03:14Z","title_canon_sha256":"dc392c66483790d48590d3618dbc1c6d5f60b1043db8436c4bde4c0c5da86f85"},"schema_version":"1.0","source":{"id":"2606.11929","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.11929","created_at":"2026-06-11T01:10:16Z"},{"alias_kind":"arxiv_version","alias_value":"2606.11929v1","created_at":"2026-06-11T01:10:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.11929","created_at":"2026-06-11T01:10:16Z"},{"alias_kind":"pith_short_12","alias_value":"WMMRL46LGTDK","created_at":"2026-06-11T01:10:16Z"},{"alias_kind":"pith_short_16","alias_value":"WMMRL46LGTDKRUIM","created_at":"2026-06-11T01:10:16Z"},{"alias_kind":"pith_short_8","alias_value":"WMMRL46L","created_at":"2026-06-11T01:10:16Z"}],"graph_snapshots":[{"event_id":"sha256:dc19f6cc7454fc0ab23112e2e0979fe71624b5eed9c2817be5a6f82e291f9866","target":"graph","created_at":"2026-06-11T01:10:16Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2606.11929/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study the effects of dimension-four and dimension-six nonminimal Higgs couplings to the Ricci scalar $R$ in the $R^2$-Higgs inflation model in light of the recent ACT and SPT observations. We show that the dimension-six operators $|\\Phi|^2 R^2$ and $|\\Phi|^4 R$ can accommodate the enhanced scalar spectral index $n_s$ preferred by the combined CMB+BAO analyses. Using a doubly covariant formalism, we find that the same region of parameter space that explains the observed value of $n_s$ can also induce rapid preheating through the production of the Goldstone modes. If thermalization proceeds e","authors_text":"Arnab Samanta, Haneesh Gonuguntla, Tanmoy Modak","cross_cats":["gr-qc","hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2026-06-10T11:03:14Z","title":"Nonminimal couplings and preheating effects in $R^2$-Higgs inflation after ACT and SPT"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.11929","kind":"arxiv","version":1},"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":"sha256:2c6750ceba168479f5e1eba64b8200a06ed862a8b9700a4983f47fb64de6cf2e","target":"record","created_at":"2026-06-11T01:10:16Z","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":"65ae4e9ac54a399cb043f12dd97e4457c02ba099c2d0a9872d9ea06b05936610","cross_cats_sorted":["gr-qc","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2026-06-10T11:03:14Z","title_canon_sha256":"dc392c66483790d48590d3618dbc1c6d5f60b1043db8436c4bde4c0c5da86f85"},"schema_version":"1.0","source":{"id":"2606.11929","kind":"arxiv","version":1}},"canonical_sha256":"b31915f3cb34c6a8d10c887fd7e1e5d52ff5a3f863954f08781f92d265ec06fe","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b31915f3cb34c6a8d10c887fd7e1e5d52ff5a3f863954f08781f92d265ec06fe","first_computed_at":"2026-06-11T01:10:16.476860Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-11T01:10:16.476860Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hrSNG1dtjB4V6cx4JSvAvazhSOheI8es1UKpX4CWGOFgSfNwnkyzHdKtiXBrPOzxmMq1CJ2SeYfwlcIyMi+oBg==","signature_status":"signed_v1","signed_at":"2026-06-11T01:10:16.477999Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.11929","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2c6750ceba168479f5e1eba64b8200a06ed862a8b9700a4983f47fb64de6cf2e","sha256:dc19f6cc7454fc0ab23112e2e0979fe71624b5eed9c2817be5a6f82e291f9866"],"state_sha256":"421074bffd5818297dca0a60a0bce26ead67ace065b1a9b3fd95343c16a97e71"}