{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:YGGYOG62Z4D4D4RK43J724D2VB","short_pith_number":"pith:YGGYOG62","canonical_record":{"source":{"id":"1810.08935","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-10-21T12:49:30Z","cross_cats_sorted":[],"title_canon_sha256":"54a682ed50c4a0f5a818439901ef0451c13f396d5c278c4e585ab14b2f2d6c4f","abstract_canon_sha256":"f1af4247a3467e22c60945cde0717301c1c4109162ddc5baf97c695783c51605"},"schema_version":"1.0"},"canonical_sha256":"c18d871bdacf07c1f22ae6d3fd707aa85158bf985d8bc2874da0d73f491d4a8f","source":{"kind":"arxiv","id":"1810.08935","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.08935","created_at":"2026-05-17T23:55:11Z"},{"alias_kind":"arxiv_version","alias_value":"1810.08935v1","created_at":"2026-05-17T23:55:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.08935","created_at":"2026-05-17T23:55:11Z"},{"alias_kind":"pith_short_12","alias_value":"YGGYOG62Z4D4","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_16","alias_value":"YGGYOG62Z4D4D4RK","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_8","alias_value":"YGGYOG62","created_at":"2026-05-18T12:33:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:YGGYOG62Z4D4D4RK43J724D2VB","target":"record","payload":{"canonical_record":{"source":{"id":"1810.08935","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-10-21T12:49:30Z","cross_cats_sorted":[],"title_canon_sha256":"54a682ed50c4a0f5a818439901ef0451c13f396d5c278c4e585ab14b2f2d6c4f","abstract_canon_sha256":"f1af4247a3467e22c60945cde0717301c1c4109162ddc5baf97c695783c51605"},"schema_version":"1.0"},"canonical_sha256":"c18d871bdacf07c1f22ae6d3fd707aa85158bf985d8bc2874da0d73f491d4a8f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:55:11.322940Z","signature_b64":"CHJmw0SEGk86mJsBru0Kiohz4QELqkbyUQDbtBFDORfyEHAVTkscqb23plmI7jjXYXH3jMHmCxAzjvMXvfL6CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c18d871bdacf07c1f22ae6d3fd707aa85158bf985d8bc2874da0d73f491d4a8f","last_reissued_at":"2026-05-17T23:55:11.322612Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:55:11.322612Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1810.08935","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:55:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VvOXG+Q53SJOn46XzG7Hf7jYNR5g6oPPZxp0yAM0Q/XJ6GhaK+rYJIDW+BMEJv2B0ghvJC0eWlV2Cg7gOg2sCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T20:49:09.098757Z"},"content_sha256":"d417c510e40562736838326732c5a94bdc392a6478c6f5ee23d3855c42ac1bde","schema_version":"1.0","event_id":"sha256:d417c510e40562736838326732c5a94bdc392a6478c6f5ee23d3855c42ac1bde"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:YGGYOG62Z4D4D4RK43J724D2VB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nonlinear polarization dynamics of Kerr beam self-cleaning in a GRIN multimode optical fiber","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Alessandro Tonello, Alioune Niang, Daniele Modotto, Denis S. Kharenko, Graciela Garmendia Casta\\~neda, Guy Millot, Katarzyna Krupa, Marc Fabert, Stefan Wabnitz, Umberto Minoni, Vincent Couderc","submitted_at":"2018-10-21T12:49:30Z","abstract_excerpt":"We experimentally study polarization dynamics of Kerr beam self-cleaning in a graded-index multimode optical fiber. We show that spatial beam cleaning is accompanied by nonlinear polarization rotation, and a substantial increase of the degree of linear polarization."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.08935","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:55:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"clqfPYwe5+Khd3yZA+jtIDe/s3R5dvd25KlO1iEq/2ijn279M9CJSbp0Jeq2OaN2HLFUHini0w8huKdXNd0fAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T20:49:09.099104Z"},"content_sha256":"3544e3585ec8a4c24b94c85289c52810ea9559d9d88f967fe850707e90cbe73f","schema_version":"1.0","event_id":"sha256:3544e3585ec8a4c24b94c85289c52810ea9559d9d88f967fe850707e90cbe73f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YGGYOG62Z4D4D4RK43J724D2VB/bundle.json","state_url":"https://pith.science/pith/YGGYOG62Z4D4D4RK43J724D2VB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YGGYOG62Z4D4D4RK43J724D2VB/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-02T20:49:09Z","links":{"resolver":"https://pith.science/pith/YGGYOG62Z4D4D4RK43J724D2VB","bundle":"https://pith.science/pith/YGGYOG62Z4D4D4RK43J724D2VB/bundle.json","state":"https://pith.science/pith/YGGYOG62Z4D4D4RK43J724D2VB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YGGYOG62Z4D4D4RK43J724D2VB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:YGGYOG62Z4D4D4RK43J724D2VB","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":"f1af4247a3467e22c60945cde0717301c1c4109162ddc5baf97c695783c51605","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-10-21T12:49:30Z","title_canon_sha256":"54a682ed50c4a0f5a818439901ef0451c13f396d5c278c4e585ab14b2f2d6c4f"},"schema_version":"1.0","source":{"id":"1810.08935","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.08935","created_at":"2026-05-17T23:55:11Z"},{"alias_kind":"arxiv_version","alias_value":"1810.08935v1","created_at":"2026-05-17T23:55:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.08935","created_at":"2026-05-17T23:55:11Z"},{"alias_kind":"pith_short_12","alias_value":"YGGYOG62Z4D4","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_16","alias_value":"YGGYOG62Z4D4D4RK","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_8","alias_value":"YGGYOG62","created_at":"2026-05-18T12:33:04Z"}],"graph_snapshots":[{"event_id":"sha256:3544e3585ec8a4c24b94c85289c52810ea9559d9d88f967fe850707e90cbe73f","target":"graph","created_at":"2026-05-17T23:55:11Z","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":"We experimentally study polarization dynamics of Kerr beam self-cleaning in a graded-index multimode optical fiber. We show that spatial beam cleaning is accompanied by nonlinear polarization rotation, and a substantial increase of the degree of linear polarization.","authors_text":"Alessandro Tonello, Alioune Niang, Daniele Modotto, Denis S. Kharenko, Graciela Garmendia Casta\\~neda, Guy Millot, Katarzyna Krupa, Marc Fabert, Stefan Wabnitz, Umberto Minoni, Vincent Couderc","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-10-21T12:49:30Z","title":"Nonlinear polarization dynamics of Kerr beam self-cleaning in a GRIN multimode optical fiber"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.08935","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:d417c510e40562736838326732c5a94bdc392a6478c6f5ee23d3855c42ac1bde","target":"record","created_at":"2026-05-17T23:55:11Z","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":"f1af4247a3467e22c60945cde0717301c1c4109162ddc5baf97c695783c51605","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-10-21T12:49:30Z","title_canon_sha256":"54a682ed50c4a0f5a818439901ef0451c13f396d5c278c4e585ab14b2f2d6c4f"},"schema_version":"1.0","source":{"id":"1810.08935","kind":"arxiv","version":1}},"canonical_sha256":"c18d871bdacf07c1f22ae6d3fd707aa85158bf985d8bc2874da0d73f491d4a8f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c18d871bdacf07c1f22ae6d3fd707aa85158bf985d8bc2874da0d73f491d4a8f","first_computed_at":"2026-05-17T23:55:11.322612Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:55:11.322612Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CHJmw0SEGk86mJsBru0Kiohz4QELqkbyUQDbtBFDORfyEHAVTkscqb23plmI7jjXYXH3jMHmCxAzjvMXvfL6CQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:55:11.322940Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.08935","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d417c510e40562736838326732c5a94bdc392a6478c6f5ee23d3855c42ac1bde","sha256:3544e3585ec8a4c24b94c85289c52810ea9559d9d88f967fe850707e90cbe73f"],"state_sha256":"a1f3594588b9b5798ec2283a7ef46ac142be66065fe11f0f8097ce6a70b3d9f0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ID/GcyohriVuyrhjbZacA3oc2NYtgAlyyUGO7GJvzQfoJOUKz+nk8/l+Ihb+sfWRBh8uopdwkt84qPkrxZGSAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T20:49:09.101198Z","bundle_sha256":"e05bdb6e6fc4529478986c389c014abe3e462f6718eb1d8902ed2dda6f6a62ac"}}