{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:3L6NKOF27KUHB4IKIMPTGVA6IT","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":"ea3bd209a7e79b770f674985672ce0b412dc5b28dc7d8a881ca5be405b22321f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-01-01T17:49:30Z","title_canon_sha256":"6a0311e5d87a7439d01ed2bf3c3e2bf7b40a49c6f5fb9eda962702bfe4f9e368"},"schema_version":"1.0","source":{"id":"1201.0367","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.0367","created_at":"2026-05-18T01:58:59Z"},{"alias_kind":"arxiv_version","alias_value":"1201.0367v1","created_at":"2026-05-18T01:58:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.0367","created_at":"2026-05-18T01:58:59Z"},{"alias_kind":"pith_short_12","alias_value":"3L6NKOF27KUH","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"3L6NKOF27KUHB4IK","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"3L6NKOF2","created_at":"2026-05-18T12:26:50Z"}],"graph_snapshots":[{"event_id":"sha256:f615e8a0c4fff9f269b597a519ab986c872d95d3e8b8249007c4b32b0ff5c252","target":"graph","created_at":"2026-05-18T01:58:59Z","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":"High-gain parametric down-conversion (PDC) is a source of bright squeezed vacuum, which is a macroscopic nonclassical state of light and a promising candidate for quantum information applications. Here we study its properties, such as the intensity spectral width and the spectral width of pairwise correlations.","authors_text":"Kirill Yu. Spasibko, Maria V. Chekhova, Timur Sh. Iskhakov","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-01-01T17:49:30Z","title":"Spectral properties of high-gain parametric down-conversion"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.0367","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":"sha256:6934a3a6c476c99be369f1d6b8d9b45f55d751b6785063a5a660af289da7a701","target":"record","created_at":"2026-05-18T01:58:59Z","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":"ea3bd209a7e79b770f674985672ce0b412dc5b28dc7d8a881ca5be405b22321f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-01-01T17:49:30Z","title_canon_sha256":"6a0311e5d87a7439d01ed2bf3c3e2bf7b40a49c6f5fb9eda962702bfe4f9e368"},"schema_version":"1.0","source":{"id":"1201.0367","kind":"arxiv","version":1}},"canonical_sha256":"dafcd538bafaa870f10a431f33541e44dcdea4b55427974abc11f28a1203c538","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dafcd538bafaa870f10a431f33541e44dcdea4b55427974abc11f28a1203c538","first_computed_at":"2026-05-18T01:58:59.090376Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:59.090376Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0lf0Mtgh5yHWuf8Ie9KgmBSNY/dCd25lQxWMCyYPQelL88oz798tL/SsbpN1zyKqmtkfNySSYLoMxAYtccJJBw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:59.091043Z","signed_message":"canonical_sha256_bytes"},"source_id":"1201.0367","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6934a3a6c476c99be369f1d6b8d9b45f55d751b6785063a5a660af289da7a701","sha256:f615e8a0c4fff9f269b597a519ab986c872d95d3e8b8249007c4b32b0ff5c252"],"state_sha256":"4908620af7e41a67c53575fc74173213d0d126e2891a87c9aee9cd1430676501"}