{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:QDZ2SS7433DTSIS37TFKL2NXK4","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":"9f191989c825e0f39ca41cd08971febdaee2cf9ba901aa08b6c02b6913fcc0bd","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2021-08-20T17:54:10Z","title_canon_sha256":"0c3c40f5fe70b8788b2288cc63868c95eda41c64de322cf18e3cd43896ca583f"},"schema_version":"1.0","source":{"id":"2108.09299","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.09299","created_at":"2026-07-05T09:37:27Z"},{"alias_kind":"arxiv_version","alias_value":"2108.09299v4","created_at":"2026-07-05T09:37:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.09299","created_at":"2026-07-05T09:37:27Z"},{"alias_kind":"pith_short_12","alias_value":"QDZ2SS7433DT","created_at":"2026-07-05T09:37:27Z"},{"alias_kind":"pith_short_16","alias_value":"QDZ2SS7433DTSIS3","created_at":"2026-07-05T09:37:27Z"},{"alias_kind":"pith_short_8","alias_value":"QDZ2SS74","created_at":"2026-07-05T09:37:27Z"}],"graph_snapshots":[{"event_id":"sha256:434c3c498bdb24874555f092d289ec1cce34a26539c4a1e61431b21c8cd5470c","target":"graph","created_at":"2026-07-05T09:37:27Z","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/2108.09299/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Rotations of an axion field in field space provide a natural origin for an era of kination domination, where the energy density is dominated by the kinetic term of the axion field, preceded by an early era of matter domination. Remarkably, no entropy is produced at the end of matter domination and hence these eras of matter and kination domination may occur even after Big Bang Nucleosynthesis. We derive constraints on these eras from both the cosmic microwave background and Big Bang Nucleosynthesis. We investigate how this cosmological scenario affects the spectrum of possible primordial gravi","authors_text":"Akshay Ghalsasi, David Dunsky, Jessie Shelton, Keisuke Harigaya, Lawrence J. Hall, Nicolas Fernandez, Raymond T. Co","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2021-08-20T17:54:10Z","title":"Gravitational Wave and CMB Probes of Axion Kination"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.09299","kind":"arxiv","version":4},"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":"sha256:9a12f146e811c45f557529056bd8e5e128572f33a7c89f1cb23ba1e2d7efbef4","target":"record","created_at":"2026-07-05T09:37:27Z","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":"9f191989c825e0f39ca41cd08971febdaee2cf9ba901aa08b6c02b6913fcc0bd","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2021-08-20T17:54:10Z","title_canon_sha256":"0c3c40f5fe70b8788b2288cc63868c95eda41c64de322cf18e3cd43896ca583f"},"schema_version":"1.0","source":{"id":"2108.09299","kind":"arxiv","version":4}},"canonical_sha256":"80f3a94bfcdec739225bfccaa5e9b7572852149d61b487c5964f86b88820bb20","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"80f3a94bfcdec739225bfccaa5e9b7572852149d61b487c5964f86b88820bb20","first_computed_at":"2026-07-05T09:37:27.563399Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:37:27.563399Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dMUFoz78TQsIYVjWCz18FXLJCNUVFGyu0s2+KYaydB+4BfVgnFNClXpx47z7b8Iet5iXeRr421dhc4rWVmXsAA==","signature_status":"signed_v1","signed_at":"2026-07-05T09:37:27.563813Z","signed_message":"canonical_sha256_bytes"},"source_id":"2108.09299","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9a12f146e811c45f557529056bd8e5e128572f33a7c89f1cb23ba1e2d7efbef4","sha256:434c3c498bdb24874555f092d289ec1cce34a26539c4a1e61431b21c8cd5470c"],"state_sha256":"d4797a3d7c38c8cc2f50c637045fbc3814d8a3ca8c67a0cd4979372705df20ee"}