{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:KCSC5Y3442ILCMBP5IZD6MPQVQ","short_pith_number":"pith:KCSC5Y34","canonical_record":{"source":{"id":"2201.00601","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2022-01-03T12:10:43Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"e013b2b671610006e2e226df6f8a8855502acce4bc3d294c103fa9768b81c2af","abstract_canon_sha256":"7ca77244a8f88c1b51ffb41457f369c064ba710542c7f62e87e7ec71d61527f3"},"schema_version":"1.0"},"canonical_sha256":"50a42ee37ce690b1302fea323f31f0ac15ba814beaeb47eaf13b621dd6002407","source":{"kind":"arxiv","id":"2201.00601","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2201.00601","created_at":"2026-07-05T05:06:09Z"},{"alias_kind":"arxiv_version","alias_value":"2201.00601v1","created_at":"2026-07-05T05:06:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2201.00601","created_at":"2026-07-05T05:06:09Z"},{"alias_kind":"pith_short_12","alias_value":"KCSC5Y3442IL","created_at":"2026-07-05T05:06:09Z"},{"alias_kind":"pith_short_16","alias_value":"KCSC5Y3442ILCMBP","created_at":"2026-07-05T05:06:09Z"},{"alias_kind":"pith_short_8","alias_value":"KCSC5Y34","created_at":"2026-07-05T05:06:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:KCSC5Y3442ILCMBP5IZD6MPQVQ","target":"record","payload":{"canonical_record":{"source":{"id":"2201.00601","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2022-01-03T12:10:43Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"e013b2b671610006e2e226df6f8a8855502acce4bc3d294c103fa9768b81c2af","abstract_canon_sha256":"7ca77244a8f88c1b51ffb41457f369c064ba710542c7f62e87e7ec71d61527f3"},"schema_version":"1.0"},"canonical_sha256":"50a42ee37ce690b1302fea323f31f0ac15ba814beaeb47eaf13b621dd6002407","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:06:09.298091Z","signature_b64":"Ab4blMcguG7AE/msTp8nWYRgUwkHtLFZ/twQdebkoyfiQ9D8gEmkGY7TUzJgj3ObXJS+53cmQyvciWo2Oje3AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"50a42ee37ce690b1302fea323f31f0ac15ba814beaeb47eaf13b621dd6002407","last_reissued_at":"2026-07-05T05:06:09.297601Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:06:09.297601Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2201.00601","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":"2026-07-05T05:06:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BIT34tmagsji3sp8duyDvNKTkMEVrfpGjDjaDFNyn5KMdDGpSvkF3y5kxR2a8ta91ZqNV5YzwOvEUanjVxIUDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-10T18:22:50.482886Z"},"content_sha256":"09d7eb888c7d969e3aaed4fabf4eb05bc90af7314882ac251290c2e06064b09a","schema_version":"1.0","event_id":"sha256:09d7eb888c7d969e3aaed4fabf4eb05bc90af7314882ac251290c2e06064b09a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:KCSC5Y3442ILCMBP5IZD6MPQVQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Generative adversarial network for super-resolution imaging through a fiber","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"eess.IV","authors_text":"Gerwin Osnabrugge, Ksenia Abrashitova, Lyubov V. Amitonova, Wei Li","submitted_at":"2022-01-03T12:10:43Z","abstract_excerpt":"A multimode fiber represents the ultimate limit in miniaturization of imaging endoscopes. Here we propose a fiber imaging approach employing compressive sensing with a data-driven machine learning framework. We implement a generative adversarial network for image reconstruction without relying on a sample sparsity constraint. The proposed method outperforms the conventional compressive imaging algorithms in terms of image quality and noise robustness. We experimentally demonstrate speckle-based imaging below the diffraction limit at a sub-Nyquist speed through a multimode fiber."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2201.00601","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/2201.00601/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T05:06:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xJxJ+HIZkeEFhIbpm07q3YY/bT+KE95tfz1ocxIPABv0Kx77pwG5oXXes9nw7ZyAnF7MxDWuk8kPyWmeBFYtAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-10T18:22:50.483260Z"},"content_sha256":"e15122fd21d25f129eb05ffc73b80fea2fe1c5cdd766555905694e87c5670671","schema_version":"1.0","event_id":"sha256:e15122fd21d25f129eb05ffc73b80fea2fe1c5cdd766555905694e87c5670671"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KCSC5Y3442ILCMBP5IZD6MPQVQ/bundle.json","state_url":"https://pith.science/pith/KCSC5Y3442ILCMBP5IZD6MPQVQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KCSC5Y3442ILCMBP5IZD6MPQVQ/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":"2026-07-10T18:22:50Z","links":{"resolver":"https://pith.science/pith/KCSC5Y3442ILCMBP5IZD6MPQVQ","bundle":"https://pith.science/pith/KCSC5Y3442ILCMBP5IZD6MPQVQ/bundle.json","state":"https://pith.science/pith/KCSC5Y3442ILCMBP5IZD6MPQVQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KCSC5Y3442ILCMBP5IZD6MPQVQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:KCSC5Y3442ILCMBP5IZD6MPQVQ","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":"7ca77244a8f88c1b51ffb41457f369c064ba710542c7f62e87e7ec71d61527f3","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2022-01-03T12:10:43Z","title_canon_sha256":"e013b2b671610006e2e226df6f8a8855502acce4bc3d294c103fa9768b81c2af"},"schema_version":"1.0","source":{"id":"2201.00601","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2201.00601","created_at":"2026-07-05T05:06:09Z"},{"alias_kind":"arxiv_version","alias_value":"2201.00601v1","created_at":"2026-07-05T05:06:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2201.00601","created_at":"2026-07-05T05:06:09Z"},{"alias_kind":"pith_short_12","alias_value":"KCSC5Y3442IL","created_at":"2026-07-05T05:06:09Z"},{"alias_kind":"pith_short_16","alias_value":"KCSC5Y3442ILCMBP","created_at":"2026-07-05T05:06:09Z"},{"alias_kind":"pith_short_8","alias_value":"KCSC5Y34","created_at":"2026-07-05T05:06:09Z"}],"graph_snapshots":[{"event_id":"sha256:e15122fd21d25f129eb05ffc73b80fea2fe1c5cdd766555905694e87c5670671","target":"graph","created_at":"2026-07-05T05:06:09Z","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/2201.00601/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A multimode fiber represents the ultimate limit in miniaturization of imaging endoscopes. Here we propose a fiber imaging approach employing compressive sensing with a data-driven machine learning framework. We implement a generative adversarial network for image reconstruction without relying on a sample sparsity constraint. The proposed method outperforms the conventional compressive imaging algorithms in terms of image quality and noise robustness. We experimentally demonstrate speckle-based imaging below the diffraction limit at a sub-Nyquist speed through a multimode fiber.","authors_text":"Gerwin Osnabrugge, Ksenia Abrashitova, Lyubov V. Amitonova, Wei Li","cross_cats":["physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2022-01-03T12:10:43Z","title":"Generative adversarial network for super-resolution imaging through a fiber"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2201.00601","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":"sha256:09d7eb888c7d969e3aaed4fabf4eb05bc90af7314882ac251290c2e06064b09a","target":"record","created_at":"2026-07-05T05:06:09Z","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":"7ca77244a8f88c1b51ffb41457f369c064ba710542c7f62e87e7ec71d61527f3","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2022-01-03T12:10:43Z","title_canon_sha256":"e013b2b671610006e2e226df6f8a8855502acce4bc3d294c103fa9768b81c2af"},"schema_version":"1.0","source":{"id":"2201.00601","kind":"arxiv","version":1}},"canonical_sha256":"50a42ee37ce690b1302fea323f31f0ac15ba814beaeb47eaf13b621dd6002407","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"50a42ee37ce690b1302fea323f31f0ac15ba814beaeb47eaf13b621dd6002407","first_computed_at":"2026-07-05T05:06:09.297601Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:06:09.297601Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Ab4blMcguG7AE/msTp8nWYRgUwkHtLFZ/twQdebkoyfiQ9D8gEmkGY7TUzJgj3ObXJS+53cmQyvciWo2Oje3AQ==","signature_status":"signed_v1","signed_at":"2026-07-05T05:06:09.298091Z","signed_message":"canonical_sha256_bytes"},"source_id":"2201.00601","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:09d7eb888c7d969e3aaed4fabf4eb05bc90af7314882ac251290c2e06064b09a","sha256:e15122fd21d25f129eb05ffc73b80fea2fe1c5cdd766555905694e87c5670671"],"state_sha256":"bb5c5caabcc89228976fc7e44c79117d59771a1558839c54fd7deef5355e2aee"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"a8FpGY/rt9O3wqRQWu+epuM5e8i3KHmSUtB7SKkTwrY6atE5d4adWl/t/r78JcopshjXtTcmdHdaGJ+lLMDJDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-10T18:22:50.485622Z","bundle_sha256":"605fafdbd09496a0df85f55f503652439e0b6b3b03e7fde3294fd73fa68c0248"}}