{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:RIL7AJFGUFGJ75E6WYRDXWKGVS","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":"73c447fecdc4ae9591723163aeebaf3cae06dbfe8c5c89f38d8457954d1aa6b1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-11-05T16:01:30Z","title_canon_sha256":"866840358aad4cd00d11bc6adcdbb8a8e85bba45591971406d9081fee980b948"},"schema_version":"1.0","source":{"id":"1811.01819","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.01819","created_at":"2026-05-17T23:43:04Z"},{"alias_kind":"arxiv_version","alias_value":"1811.01819v1","created_at":"2026-05-17T23:43:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.01819","created_at":"2026-05-17T23:43:04Z"},{"alias_kind":"pith_short_12","alias_value":"RIL7AJFGUFGJ","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_16","alias_value":"RIL7AJFGUFGJ75E6","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_8","alias_value":"RIL7AJFG","created_at":"2026-05-18T12:32:50Z"}],"graph_snapshots":[{"event_id":"sha256:68bd9a79945bcbbd9bd24a0f04e13740055f9a5837026264751684a21511f902","target":"graph","created_at":"2026-05-17T23:43:04Z","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":"Since its introduction by Sir Michael Berry in 1984, geometric phase became of fundamental importance in physics, with applications ranging from solid state physics to optics. In optics, Pancharatnam-Berry phase allows the tailoring of optical beams by a local control of their polarization. Here we discuss light propagation in the presence of an intensity-dependent local modulation of the Pancharatnam-Berry phase. The corresponding self-modulation of the wavefront counteracts the natural spreading due to diffraction, i.e., self-focusing takes place. No refractive index variation is associated ","authors_text":"A. Alberucci, C.P. Jisha, J. Beeckman, S. Nolte","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-11-05T16:01:30Z","title":"Nonlinear localization of light using the Pancharatnam-Berry phase"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.01819","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:e0ada9f81934aa0355ef1cb09e729a1c6c076c36f96193bc6c78101b6318c96a","target":"record","created_at":"2026-05-17T23:43:04Z","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":"73c447fecdc4ae9591723163aeebaf3cae06dbfe8c5c89f38d8457954d1aa6b1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-11-05T16:01:30Z","title_canon_sha256":"866840358aad4cd00d11bc6adcdbb8a8e85bba45591971406d9081fee980b948"},"schema_version":"1.0","source":{"id":"1811.01819","kind":"arxiv","version":1}},"canonical_sha256":"8a17f024a6a14c9ff49eb6223bd946acb06d34f76900c51455a8d06f3770dd89","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8a17f024a6a14c9ff49eb6223bd946acb06d34f76900c51455a8d06f3770dd89","first_computed_at":"2026-05-17T23:43:04.368958Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:43:04.368958Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"o6GKrbjjFNWZsY0X97s+F7pa/je1nckDGb1OO4xVwm4PRSS4wMlGifpr9rOY0yEu8pUPItXg2jWDtwzCsfhdAQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:43:04.369507Z","signed_message":"canonical_sha256_bytes"},"source_id":"1811.01819","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e0ada9f81934aa0355ef1cb09e729a1c6c076c36f96193bc6c78101b6318c96a","sha256:68bd9a79945bcbbd9bd24a0f04e13740055f9a5837026264751684a21511f902"],"state_sha256":"dd31fef475e812961a95f3414cb41ca0046296099519233a83f23a88895a94bc"}