{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:JCNWSXG7VUZM3RC2MYAN52XMT5","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":"3491f20c1074aa5315a49b26cc42fd1892319f3ff51e0c959a3e95eb48969447","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2026-06-17T08:46:05Z","title_canon_sha256":"cc26b71c202a21f01b45b6c1bf834ddaf054783a5ee4c2bd1e89012decd4aa9a"},"schema_version":"1.0","source":{"id":"2606.20730","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.20730","created_at":"2026-06-23T00:11:54Z"},{"alias_kind":"arxiv_version","alias_value":"2606.20730v1","created_at":"2026-06-23T00:11:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.20730","created_at":"2026-06-23T00:11:54Z"},{"alias_kind":"pith_short_12","alias_value":"JCNWSXG7VUZM","created_at":"2026-06-23T00:11:54Z"},{"alias_kind":"pith_short_16","alias_value":"JCNWSXG7VUZM3RC2","created_at":"2026-06-23T00:11:54Z"},{"alias_kind":"pith_short_8","alias_value":"JCNWSXG7","created_at":"2026-06-23T00:11:54Z"}],"graph_snapshots":[{"event_id":"sha256:341c21cd6b047043c6638e79cf13ac69d65af6a09d630c80294e2536f799ae55","target":"graph","created_at":"2026-06-23T00:11:54Z","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/2606.20730/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We derive the general cubic action for perturbations about a cosmological background in the quadratic subclass of degenerate higher-order scalar-tensor (DHOST) theories, focusing on scalar-scalar-tensor interactions. We adopt a fully covariant formulation and implement unitary gauge at the level of perturbations. This mixed sector provides the key ingredient for estimating the decay rate of a gravitational wave into two scalar excitations in the quadratic DHOST models of dark energy in the late-time Universe.","authors_text":"S. Mironov, V. Volkova","cross_cats":["hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2026-06-17T08:46:05Z","title":"Scalar-scalar-tensor interaction in DHOST theories"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.20730","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":"sha256:7bdd5a15b35ebad638d12bb3610602f2ed9858d668307c68ff2d0c9df28cb98e","target":"record","created_at":"2026-06-23T00:11:54Z","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":"3491f20c1074aa5315a49b26cc42fd1892319f3ff51e0c959a3e95eb48969447","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2026-06-17T08:46:05Z","title_canon_sha256":"cc26b71c202a21f01b45b6c1bf834ddaf054783a5ee4c2bd1e89012decd4aa9a"},"schema_version":"1.0","source":{"id":"2606.20730","kind":"arxiv","version":1}},"canonical_sha256":"489b695cdfad32cdc45a6600deeaec9f763fc6c71c228f1eda90cf870446dcf7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"489b695cdfad32cdc45a6600deeaec9f763fc6c71c228f1eda90cf870446dcf7","first_computed_at":"2026-06-23T00:11:54.960911Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-23T00:11:54.960911Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tJrYzbe72VoVmWRmS/OIg26yJkvoquVdz30GkDKUTn2B9ZAUUP2iUUkJr7zaRe84e9xuU2bX3QDOreGG8YpGDg==","signature_status":"signed_v1","signed_at":"2026-06-23T00:11:54.961303Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.20730","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7bdd5a15b35ebad638d12bb3610602f2ed9858d668307c68ff2d0c9df28cb98e","sha256:341c21cd6b047043c6638e79cf13ac69d65af6a09d630c80294e2536f799ae55"],"state_sha256":"e43cafd212bfbd5a5541bd2b966df8461999159c210bab564a6246f362f6a64f"}