{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:C3I4NR7BDUDF4FW35OMIRMLB2H","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":"4cc58c729422192849fc7fbc6e315b89283eb93ae720e0165c35b941f62614c7","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2013-07-30T08:14:42Z","title_canon_sha256":"fd92bdffb79b7b904614a707b7b42690da5650abc192ba83969df31b149bdc8b"},"schema_version":"1.0","source":{"id":"1307.7864","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.7864","created_at":"2026-05-18T01:48:33Z"},{"alias_kind":"arxiv_version","alias_value":"1307.7864v2","created_at":"2026-05-18T01:48:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.7864","created_at":"2026-05-18T01:48:33Z"},{"alias_kind":"pith_short_12","alias_value":"C3I4NR7BDUDF","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_16","alias_value":"C3I4NR7BDUDF4FW3","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_8","alias_value":"C3I4NR7B","created_at":"2026-05-18T12:27:40Z"}],"graph_snapshots":[{"event_id":"sha256:d829238baf4a2f546b2ec751c55f45a0443b7048cfd60e889a02a20c6e9f0f23","target":"graph","created_at":"2026-05-18T01:48:33Z","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":"We show a curvaton model, in which the curvaton has a nonminimal derivative coupling to gravity. Thanks to such a coupling, we find that the scale-invariance of the perturbations can be achieved for arbitrary values of the equation-of-state of background, provided that it is nearly a constant. We also discussed about tensor perturbations, the local non-Gaussianities generated by the nonminimal derivative coupling curvaton model, as well as the adiabatic perturbations which are transferred from the field perturbations during the curvaton decay.","authors_text":"Kaixi Feng, Taotao Qiu, Yun-Song Piao","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2013-07-30T08:14:42Z","title":"Curvaton with nonminimal derivative coupling to gravity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.7864","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":"sha256:2a6e7840f870cf3399c1310d775fae9e7ee18f2c98ac4404a4fef4daac536850","target":"record","created_at":"2026-05-18T01:48:33Z","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":"4cc58c729422192849fc7fbc6e315b89283eb93ae720e0165c35b941f62614c7","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2013-07-30T08:14:42Z","title_canon_sha256":"fd92bdffb79b7b904614a707b7b42690da5650abc192ba83969df31b149bdc8b"},"schema_version":"1.0","source":{"id":"1307.7864","kind":"arxiv","version":2}},"canonical_sha256":"16d1c6c7e11d065e16dbeb9888b161d1e4e4a42b0e049dfdf15c7e25ecf18003","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"16d1c6c7e11d065e16dbeb9888b161d1e4e4a42b0e049dfdf15c7e25ecf18003","first_computed_at":"2026-05-18T01:48:33.013180Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:48:33.013180Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YkMwZHmBI4XhWen49IAuv60Ve0FNZFcbXUC03F8WC8+ciwjv+De/draYA+fKtzTAE8Le9dKMCJp0V0Fc/masDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:48:33.013773Z","signed_message":"canonical_sha256_bytes"},"source_id":"1307.7864","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2a6e7840f870cf3399c1310d775fae9e7ee18f2c98ac4404a4fef4daac536850","sha256:d829238baf4a2f546b2ec751c55f45a0443b7048cfd60e889a02a20c6e9f0f23"],"state_sha256":"0c45cfd3e139c242c556148bfa89788393d8ee029c136031026d001d7cd07af4"}