{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2004:TYOXOPKXEZC35K6Q4UXNCKIB2T","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":"de7967f5bab1f603d69271156f658942a3a518bfa78a473bcc81b43be835d51f","cross_cats_sorted":[],"license":"","primary_cat":"physics.optics","submitted_at":"2004-06-10T14:18:14Z","title_canon_sha256":"14cd2d5651b89bf0d34c71a4800dcccb9fdd4d6861705a2b2a39edc3b8054153"},"schema_version":"1.0","source":{"id":"physics/0406049","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"physics/0406049","created_at":"2026-07-04T16:49:52Z"},{"alias_kind":"arxiv_version","alias_value":"physics/0406049v1","created_at":"2026-07-04T16:49:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.physics/0406049","created_at":"2026-07-04T16:49:52Z"},{"alias_kind":"pith_short_12","alias_value":"TYOXOPKXEZC3","created_at":"2026-07-04T16:49:52Z"},{"alias_kind":"pith_short_16","alias_value":"TYOXOPKXEZC35K6Q","created_at":"2026-07-04T16:49:52Z"},{"alias_kind":"pith_short_8","alias_value":"TYOXOPKX","created_at":"2026-07-04T16:49:52Z"}],"graph_snapshots":[{"event_id":"sha256:f43b4032c43279f834babd9bbb78783866d9cd46f8954aa187fa5fd0e87e966e","target":"graph","created_at":"2026-07-04T16:49:52Z","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/physics/0406049/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We describe an experiment showing a spontaneous symmetry breaking phenomenon between the intensities of the ordinary and extraordinary components of the fundamental field in intracavity type-II harmonic generation. It is based on a triply resonant dual cavity containing a type II phase matched $\\chi^{(2)}$ crystal pumped at the fundamental frequency $\\omega_0$. The pump beam generates in the cavity a second harmonic mode at frequency $2\\omega_0$ which acts as a pump for frequency degenerate type II parametric down conversion. Under operating conditions which are precisely symmetric with respec","authors_text":"Claude Fabre, Julien Laurat, Laurent Longchambon, Nicolas Treps, Thomas Coudreau","cross_cats":[],"headline":"","license":"","primary_cat":"physics.optics","submitted_at":"2004-06-10T14:18:14Z","title":"Experimental evidence of spontaneous symmetry breaking in intracavity type-II second harmonic generation with triple resonance"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"physics/0406049","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:aeca26e820b004f5012d82898c9e2d07b8eb97db36128f54859623dc52e41536","target":"record","created_at":"2026-07-04T16:49:52Z","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":"de7967f5bab1f603d69271156f658942a3a518bfa78a473bcc81b43be835d51f","cross_cats_sorted":[],"license":"","primary_cat":"physics.optics","submitted_at":"2004-06-10T14:18:14Z","title_canon_sha256":"14cd2d5651b89bf0d34c71a4800dcccb9fdd4d6861705a2b2a39edc3b8054153"},"schema_version":"1.0","source":{"id":"physics/0406049","kind":"arxiv","version":1}},"canonical_sha256":"9e1d773d572645beabd0e52ed12901d4f09e1b30d1030e71f26e09b891302c05","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9e1d773d572645beabd0e52ed12901d4f09e1b30d1030e71f26e09b891302c05","first_computed_at":"2026-07-04T16:49:52.501779Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:49:52.501779Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5hasWMRwTGIxywVNL3NJro1bIjxoLHOxbw26UqEHlJ85WDKBOIXL0ls4SG4N7WY8RUmeguO7+Nl+Y7W9x5U7BQ==","signature_status":"signed_v1","signed_at":"2026-07-04T16:49:52.502192Z","signed_message":"canonical_sha256_bytes"},"source_id":"physics/0406049","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:aeca26e820b004f5012d82898c9e2d07b8eb97db36128f54859623dc52e41536","sha256:f43b4032c43279f834babd9bbb78783866d9cd46f8954aa187fa5fd0e87e966e"],"state_sha256":"94a4a553fc852e891f978f1998c3b2915942307f10582f832c6db61a164450ea"}