{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1999:FWMSW4MXLZRINKRPQ3HK3RWOVI","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":"e379f261c6e23ef7f6318452cc991f165569012ee1cdc7aee21ef1d41e7121ae","cross_cats_sorted":[],"license":"","primary_cat":"gr-qc","submitted_at":"1999-06-15T17:05:05Z","title_canon_sha256":"57b9feb12baac89a3a28973a0fb9625c82c3206763b21e91ddeb2ab26dfcea85"},"schema_version":"1.0","source":{"id":"gr-qc/9906054","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"gr-qc/9906054","created_at":"2026-05-18T01:08:01Z"},{"alias_kind":"arxiv_version","alias_value":"gr-qc/9906054v2","created_at":"2026-05-18T01:08:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.gr-qc/9906054","created_at":"2026-05-18T01:08:01Z"},{"alias_kind":"pith_short_12","alias_value":"FWMSW4MXLZRI","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"FWMSW4MXLZRINKRP","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"FWMSW4MX","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:793e8d531c8d59479ac70f778ceb4194c57570c142f2e95c69d1435b3bb371e0","target":"graph","created_at":"2026-05-18T01:08:01Z","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":"Grishchuk has shown that the stochastic background of gravitational waves produced by an inflationary phase in the early Universe has an unusual property: it is not a stationary Gaussian random process. Due to squeezing, the phases of the different waves are correlated in a deterministic way, arising from the process of parametric amplification that created them. The resulting random process is Gaussian but non-stationary. This provides a unique signature that could in principle distinguish a background created by inflation from stationary stochastic backgrounds created by other types of proce","authors_text":"Bruce Allen (U. of Wisconsin - Milwaukee), Eanna Flanagan (Cornell University), Frascati), Maria Alessandra Papa (INFN","cross_cats":[],"headline":"","license":"","primary_cat":"gr-qc","submitted_at":"1999-06-15T17:05:05Z","title":"Is the squeezing of relic gravitational waves produced by inflation detectable?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"gr-qc/9906054","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:af024270c8cf3db390ce0ae806693f0aa65a8302256b469c78c8cd6e1cbfa44b","target":"record","created_at":"2026-05-18T01:08:01Z","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":"e379f261c6e23ef7f6318452cc991f165569012ee1cdc7aee21ef1d41e7121ae","cross_cats_sorted":[],"license":"","primary_cat":"gr-qc","submitted_at":"1999-06-15T17:05:05Z","title_canon_sha256":"57b9feb12baac89a3a28973a0fb9625c82c3206763b21e91ddeb2ab26dfcea85"},"schema_version":"1.0","source":{"id":"gr-qc/9906054","kind":"arxiv","version":2}},"canonical_sha256":"2d992b71975e6286aa2f86ceadc6ceaa1623c145d95639c961f394968765da89","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2d992b71975e6286aa2f86ceadc6ceaa1623c145d95639c961f394968765da89","first_computed_at":"2026-05-18T01:08:01.058619Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:08:01.058619Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pFBbcrEtMHdb5Go51st+ulO2BDYhJV6uUzU6gdWBeANnRGE9mxBxJhgIb/jzYDgFBU0oLW0+YomyEsHIMX6ZAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:08:01.059043Z","signed_message":"canonical_sha256_bytes"},"source_id":"gr-qc/9906054","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:af024270c8cf3db390ce0ae806693f0aa65a8302256b469c78c8cd6e1cbfa44b","sha256:793e8d531c8d59479ac70f778ceb4194c57570c142f2e95c69d1435b3bb371e0"],"state_sha256":"e7e2964be7e63fa45295e3207029ec482f5dd33968eb1dc0f74b0f28b0d99738"}