{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:IW5QEOVOG2VX76ZL3EY7Z5OJSU","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":"553f0ca0b7dbdbb7da9ea1f80937945bf44be157177870068cb32e42b451b37a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2026-06-05T16:46:01Z","title_canon_sha256":"ed5753f9c39cc7d5c4e8e9541a8ae03d78ef82b3b1328410f2620c08ec2f2ea4"},"schema_version":"1.0","source":{"id":"2606.07444","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.07444","created_at":"2026-06-08T01:05:27Z"},{"alias_kind":"arxiv_version","alias_value":"2606.07444v1","created_at":"2026-06-08T01:05:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.07444","created_at":"2026-06-08T01:05:27Z"},{"alias_kind":"pith_short_12","alias_value":"IW5QEOVOG2VX","created_at":"2026-06-08T01:05:27Z"},{"alias_kind":"pith_short_16","alias_value":"IW5QEOVOG2VX76ZL","created_at":"2026-06-08T01:05:27Z"},{"alias_kind":"pith_short_8","alias_value":"IW5QEOVO","created_at":"2026-06-08T01:05:27Z"}],"graph_snapshots":[{"event_id":"sha256:399333b4dbfa03dfdd4e5f27d5f23b3b3a3de4d33f9e6b3642dc8ca25a94b767","target":"graph","created_at":"2026-06-08T01:05:27Z","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/2606.07444/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Optical poling is a well-established technique for inducing \\chi^{(2)} nonlinearity, yet its impact on silica's molecular structure remains unexplored. Here, we report the first direct observation of molecular restructuring in large-core graded-index multimode fibers (MMFs) induced by optical poling, transforming the silica tetrahedral ring network. Through coherent light beating, this process converts large rings of more than four SiO_4 tetrahedra into smaller ones, altering both linear and nonlinear optical susceptibilities. Contrary to the assumption that poling efficiency stems solely from","authors_text":"Alessandro Tonello, Claire Lefort, C. Sandt, Dan-Esli Bouyou Bouyou, Jean-Ren\\'e Ducl\\`ere, Julie Cornette, Maggy Colas, Marc Fabert, Maxime Jonard, Thomas Larqu\\'e, Tigran Mansuryan, Vincent Couderc, Yago Arosa","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2026-06-05T16:46:01Z","title":"Optical Poling Reveals Hidden Molecular Restructuring in Multimode Fibers, Unlocking Ultra-Efficient Third-Order Nonlinearities"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.07444","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":"sha256:97227b4a59209d67f310331b5bd4196547e1a4e2992cefad8b4a5fcfa9f9fce8","target":"record","created_at":"2026-06-08T01:05:27Z","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":"553f0ca0b7dbdbb7da9ea1f80937945bf44be157177870068cb32e42b451b37a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2026-06-05T16:46:01Z","title_canon_sha256":"ed5753f9c39cc7d5c4e8e9541a8ae03d78ef82b3b1328410f2620c08ec2f2ea4"},"schema_version":"1.0","source":{"id":"2606.07444","kind":"arxiv","version":1}},"canonical_sha256":"45bb023aae36ab7ffb2bd931fcf5c99535a4a3ede6a39acfe17cf2dcb6f3c4b5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"45bb023aae36ab7ffb2bd931fcf5c99535a4a3ede6a39acfe17cf2dcb6f3c4b5","first_computed_at":"2026-06-08T01:05:27.503249Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-08T01:05:27.503249Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jHCaK7awUzkDbbKGBnMmeSl1Zf9va/6wmV7QRy5M2GUc6jS3kUPnP632pBwsuPGZ64fBkG/XAtU5zw/vYVunDA==","signature_status":"signed_v1","signed_at":"2026-06-08T01:05:27.504110Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.07444","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:97227b4a59209d67f310331b5bd4196547e1a4e2992cefad8b4a5fcfa9f9fce8","sha256:399333b4dbfa03dfdd4e5f27d5f23b3b3a3de4d33f9e6b3642dc8ca25a94b767"],"state_sha256":"1b299b9012bfe0cb0dab52d8e78de14376c277ffcca4252162c8ee246d7d4142"}