{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:YK6U5VB2A6GGC4XCBK32RKM7HH","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":"7cd614627ad0de7fc00ceff6fe16a85c94c3f326261fa162f815707d4cf42deb","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2025-03-01T14:22:02Z","title_canon_sha256":"de25d1f8e38ca929b7a9b9e7ac84f63587731e6e1a58ccd8d60831123c94ae05"},"schema_version":"1.0","source":{"id":"2503.00506","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2503.00506","created_at":"2026-07-05T11:38:27Z"},{"alias_kind":"arxiv_version","alias_value":"2503.00506v2","created_at":"2026-07-05T11:38:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.00506","created_at":"2026-07-05T11:38:27Z"},{"alias_kind":"pith_short_12","alias_value":"YK6U5VB2A6GG","created_at":"2026-07-05T11:38:27Z"},{"alias_kind":"pith_short_16","alias_value":"YK6U5VB2A6GGC4XC","created_at":"2026-07-05T11:38:27Z"},{"alias_kind":"pith_short_8","alias_value":"YK6U5VB2","created_at":"2026-07-05T11:38:27Z"}],"graph_snapshots":[{"event_id":"sha256:5dcf1f9f8c98ce295a655f642ccdaed0e364d328daa55860fa5af0fd418e80b8","target":"graph","created_at":"2026-07-05T11:38:27Z","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/2503.00506/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Spatial resolution (SR), a core parameter of Brillouin optical time-domain analysis (BOTDA) sensors, determines the minimum fiber length over which physical perturbations can be accurately detected. However, the phonon lifetime in the fiber imposes an inherent limit on the SR, making sub-meter-level SR challenging in high-SR monitoring scenarios. Conventional SR enhancement approaches, constrained by hardware limitations, often involve complex systems, or increased measurement times. Although traditional deconvolution methods can mitigate hardware constraints, they suffer from distortion due t","authors_text":"Hao Wu, Li Shen, Ming Tang, Zhao Ge, Zhiyong Zhao","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2025-03-01T14:22:02Z","title":"Unsupervised super-spatial-resolution Brillouin frequency shift extraction based on physical enhanced spatial resolution neural network"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.00506","kind":"arxiv","version":2},"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:cd2402995ce4bea0cf8496f07e9b05e443807a5ca4f9e2e3ff4d9f3f9a666de5","target":"record","created_at":"2026-07-05T11:38:27Z","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":"7cd614627ad0de7fc00ceff6fe16a85c94c3f326261fa162f815707d4cf42deb","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2025-03-01T14:22:02Z","title_canon_sha256":"de25d1f8e38ca929b7a9b9e7ac84f63587731e6e1a58ccd8d60831123c94ae05"},"schema_version":"1.0","source":{"id":"2503.00506","kind":"arxiv","version":2}},"canonical_sha256":"c2bd4ed43a078c6172e20ab7a8a99f39f2e166083c75b96f492f422f46a60b31","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c2bd4ed43a078c6172e20ab7a8a99f39f2e166083c75b96f492f422f46a60b31","first_computed_at":"2026-07-05T11:38:27.381928Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:38:27.381928Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"v9KCB3K8FG/h7a3C59bKs2SWbYyhkNvWdNzrvdcOpKb1M1lvpdRoGmLKKwX+g90JKd5ZWhGBHoScq69y/T/JAA==","signature_status":"signed_v1","signed_at":"2026-07-05T11:38:27.382531Z","signed_message":"canonical_sha256_bytes"},"source_id":"2503.00506","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cd2402995ce4bea0cf8496f07e9b05e443807a5ca4f9e2e3ff4d9f3f9a666de5","sha256:5dcf1f9f8c98ce295a655f642ccdaed0e364d328daa55860fa5af0fd418e80b8"],"state_sha256":"8dfcbf09ab045a1a1ec5a9d0493b641c9d44b25f46ac16576034b1a0221f7e0d"}