{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:FMKBRF4QBWMVNI3F42JCNHT7T2","short_pith_number":"pith:FMKBRF4Q","schema_version":"1.0","canonical_sha256":"2b141897900d9956a365e692269e7f9e9faf11c32faceb2cea24a5f2a1061799","source":{"kind":"arxiv","id":"2507.04787","version":1},"attestation_state":"computed","paper":{"title":"Experimental observation of the spatio-temporal dynamics of breather gases in a recirculating fiber loop","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"nlin.PS","authors_text":"Fran\\c{c}ois Copie, Gennady El, Gino Biondini, Jeffrey Oregero, Pierre Suret, St\\'ephane Randoux","submitted_at":"2025-07-07T09:06:18Z","abstract_excerpt":"We report the first experimental observation of breather gases (BGs) in optics, realized in a recirculating fiber loop enabling virtually lossless propagation over $1200$ km. Initiated by a slowly modulated optical background perturbed by noise, the BGs form through a nonlinear fission process and demonstrate spatiotemporal dynamics that align closely with numerical simulations of the focusing one-dimensional nonlinear Schr\\\"odinger equation. The minimal dissipation in our setup enables a statistical characterization of the BGs and confirms the theoretically predicted doubling of kurtosis duri"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2507.04787","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nlin.PS","submitted_at":"2025-07-07T09:06:18Z","cross_cats_sorted":[],"title_canon_sha256":"b126681dc2fbbd65c4ae37d55f3556ae384488cfe0c9242ca2efdf96e701fa72","abstract_canon_sha256":"0bc117dad652bc7e5e9caac4ae75f8160a231a28f171e60de1daad3659194c7b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:32:54.145811Z","signature_b64":"Z4bGn7N8cksWpBOlqXSCmMnK62PAA8NDsNZ6ZwC0/euQW0ghHbl1E7KRhja8ygpCMmD9VAFH5z6ar4dosBaVCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2b141897900d9956a365e692269e7f9e9faf11c32faceb2cea24a5f2a1061799","last_reissued_at":"2026-07-05T11:32:54.145291Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:32:54.145291Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Experimental observation of the spatio-temporal dynamics of breather gases in a recirculating fiber loop","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"nlin.PS","authors_text":"Fran\\c{c}ois Copie, Gennady El, Gino Biondini, Jeffrey Oregero, Pierre Suret, St\\'ephane Randoux","submitted_at":"2025-07-07T09:06:18Z","abstract_excerpt":"We report the first experimental observation of breather gases (BGs) in optics, realized in a recirculating fiber loop enabling virtually lossless propagation over $1200$ km. Initiated by a slowly modulated optical background perturbed by noise, the BGs form through a nonlinear fission process and demonstrate spatiotemporal dynamics that align closely with numerical simulations of the focusing one-dimensional nonlinear Schr\\\"odinger equation. The minimal dissipation in our setup enables a statistical characterization of the BGs and confirms the theoretically predicted doubling of kurtosis duri"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.04787","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2507.04787/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2507.04787","created_at":"2026-07-05T11:32:54.145375+00:00"},{"alias_kind":"arxiv_version","alias_value":"2507.04787v1","created_at":"2026-07-05T11:32:54.145375+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.04787","created_at":"2026-07-05T11:32:54.145375+00:00"},{"alias_kind":"pith_short_12","alias_value":"FMKBRF4QBWMV","created_at":"2026-07-05T11:32:54.145375+00:00"},{"alias_kind":"pith_short_16","alias_value":"FMKBRF4QBWMVNI3F","created_at":"2026-07-05T11:32:54.145375+00:00"},{"alias_kind":"pith_short_8","alias_value":"FMKBRF4Q","created_at":"2026-07-05T11:32:54.145375+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/FMKBRF4QBWMVNI3F42JCNHT7T2","json":"https://pith.science/pith/FMKBRF4QBWMVNI3F42JCNHT7T2.json","graph_json":"https://pith.science/api/pith-number/FMKBRF4QBWMVNI3F42JCNHT7T2/graph.json","events_json":"https://pith.science/api/pith-number/FMKBRF4QBWMVNI3F42JCNHT7T2/events.json","paper":"https://pith.science/paper/FMKBRF4Q"},"agent_actions":{"view_html":"https://pith.science/pith/FMKBRF4QBWMVNI3F42JCNHT7T2","download_json":"https://pith.science/pith/FMKBRF4QBWMVNI3F42JCNHT7T2.json","view_paper":"https://pith.science/paper/FMKBRF4Q","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2507.04787&json=true","fetch_graph":"https://pith.science/api/pith-number/FMKBRF4QBWMVNI3F42JCNHT7T2/graph.json","fetch_events":"https://pith.science/api/pith-number/FMKBRF4QBWMVNI3F42JCNHT7T2/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/FMKBRF4QBWMVNI3F42JCNHT7T2/action/timestamp_anchor","attest_storage":"https://pith.science/pith/FMKBRF4QBWMVNI3F42JCNHT7T2/action/storage_attestation","attest_author":"https://pith.science/pith/FMKBRF4QBWMVNI3F42JCNHT7T2/action/author_attestation","sign_citation":"https://pith.science/pith/FMKBRF4QBWMVNI3F42JCNHT7T2/action/citation_signature","submit_replication":"https://pith.science/pith/FMKBRF4QBWMVNI3F42JCNHT7T2/action/replication_record"}},"created_at":"2026-07-05T11:32:54.145375+00:00","updated_at":"2026-07-05T11:32:54.145375+00:00"}