{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:QJEQ4UHWTJGONPAQD3BN2PJBE7","short_pith_number":"pith:QJEQ4UHW","canonical_record":{"source":{"id":"2203.07737","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2022-03-15T09:11:48Z","cross_cats_sorted":["cs.CV"],"title_canon_sha256":"f9fd27de120998f3b2d61eb320650b2d3f48d6347a2ef853b5e2b6ae7ba31fc0","abstract_canon_sha256":"36359cd550c55924c7144c2f646386c0c4ed7e991b8f17df9e0b96118dd44a13"},"schema_version":"1.0"},"canonical_sha256":"82490e50f69a4ce6bc101ec2dd3d2127d2753f560845be9a1e45509e45814be6","source":{"kind":"arxiv","id":"2203.07737","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.07737","created_at":"2026-07-05T05:07:40Z"},{"alias_kind":"arxiv_version","alias_value":"2203.07737v1","created_at":"2026-07-05T05:07:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.07737","created_at":"2026-07-05T05:07:40Z"},{"alias_kind":"pith_short_12","alias_value":"QJEQ4UHWTJGO","created_at":"2026-07-05T05:07:40Z"},{"alias_kind":"pith_short_16","alias_value":"QJEQ4UHWTJGONPAQ","created_at":"2026-07-05T05:07:40Z"},{"alias_kind":"pith_short_8","alias_value":"QJEQ4UHW","created_at":"2026-07-05T05:07:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:QJEQ4UHWTJGONPAQD3BN2PJBE7","target":"record","payload":{"canonical_record":{"source":{"id":"2203.07737","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2022-03-15T09:11:48Z","cross_cats_sorted":["cs.CV"],"title_canon_sha256":"f9fd27de120998f3b2d61eb320650b2d3f48d6347a2ef853b5e2b6ae7ba31fc0","abstract_canon_sha256":"36359cd550c55924c7144c2f646386c0c4ed7e991b8f17df9e0b96118dd44a13"},"schema_version":"1.0"},"canonical_sha256":"82490e50f69a4ce6bc101ec2dd3d2127d2753f560845be9a1e45509e45814be6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:07:40.329034Z","signature_b64":"brTTQAuR8UK2kP+C7iJoKBznDqAuNndfA9ZKmvr08lOfE5PjOiueNfXBtflsvhc8lXXDBwKiKL239QVRKuTjAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"82490e50f69a4ce6bc101ec2dd3d2127d2753f560845be9a1e45509e45814be6","last_reissued_at":"2026-07-05T05:07:40.328542Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:07:40.328542Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2203.07737","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":"2026-07-05T05:07:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lL3owqwZ7DVzKYM4hwaGBRjoKybnHUJ97j+ANhDDwcDsB1kWM15rXFtd33yb068tGUaCJrb+pgdXVdY2+m/mCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T02:39:26.429998Z"},"content_sha256":"0e6def3ab3e09dda46cf40abefa6d00888e4015d3e96e22a3c5513e3ab3b712b","schema_version":"1.0","event_id":"sha256:0e6def3ab3e09dda46cf40abefa6d00888e4015d3e96e22a3c5513e3ab3b712b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:QJEQ4UHWTJGONPAQD3BN2PJBE7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"An Annotation-free Restoration Network for Cataractous Fundus Images","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CV"],"primary_cat":"eess.IV","authors_text":"Hanpei Miao, Haofeng Liu, Heng Li, Huazhu Fu, Jiang Liu, Yan Hu, Yitian Zhao","submitted_at":"2022-03-15T09:11:48Z","abstract_excerpt":"Cataracts are the leading cause of vision loss worldwide. Restoration algorithms are developed to improve the readability of cataract fundus images in order to increase the certainty in diagnosis and treatment for cataract patients. Unfortunately, the requirement of annotation limits the application of these algorithms in clinics. This paper proposes a network to annotation-freely restore cataractous fundus images (ArcNet) so as to boost the clinical practicability of restoration. Annotations are unnecessary in ArcNet, where the high-frequency component is extracted from fundus images to repla"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.07737","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/2203.07737/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":"2026-07-05T05:07:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YUcHXL9V6OUgPM6344EmmCjoYCSQLDQ1nb9DPphV2QbdD3QBysvdf44GLCjTpVqX3HFjU3RO1+HCFlOpQN4zAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T02:39:26.430373Z"},"content_sha256":"ca3c7ef11341746042c0cdf62f42144482a0cb172d2ffa98f6f3c322877564f8","schema_version":"1.0","event_id":"sha256:ca3c7ef11341746042c0cdf62f42144482a0cb172d2ffa98f6f3c322877564f8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QJEQ4UHWTJGONPAQD3BN2PJBE7/bundle.json","state_url":"https://pith.science/pith/QJEQ4UHWTJGONPAQD3BN2PJBE7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QJEQ4UHWTJGONPAQD3BN2PJBE7/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":"2026-08-18T02:39:26Z","links":{"resolver":"https://pith.science/pith/QJEQ4UHWTJGONPAQD3BN2PJBE7","bundle":"https://pith.science/pith/QJEQ4UHWTJGONPAQD3BN2PJBE7/bundle.json","state":"https://pith.science/pith/QJEQ4UHWTJGONPAQD3BN2PJBE7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QJEQ4UHWTJGONPAQD3BN2PJBE7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:QJEQ4UHWTJGONPAQD3BN2PJBE7","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":"36359cd550c55924c7144c2f646386c0c4ed7e991b8f17df9e0b96118dd44a13","cross_cats_sorted":["cs.CV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2022-03-15T09:11:48Z","title_canon_sha256":"f9fd27de120998f3b2d61eb320650b2d3f48d6347a2ef853b5e2b6ae7ba31fc0"},"schema_version":"1.0","source":{"id":"2203.07737","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.07737","created_at":"2026-07-05T05:07:40Z"},{"alias_kind":"arxiv_version","alias_value":"2203.07737v1","created_at":"2026-07-05T05:07:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.07737","created_at":"2026-07-05T05:07:40Z"},{"alias_kind":"pith_short_12","alias_value":"QJEQ4UHWTJGO","created_at":"2026-07-05T05:07:40Z"},{"alias_kind":"pith_short_16","alias_value":"QJEQ4UHWTJGONPAQ","created_at":"2026-07-05T05:07:40Z"},{"alias_kind":"pith_short_8","alias_value":"QJEQ4UHW","created_at":"2026-07-05T05:07:40Z"}],"graph_snapshots":[{"event_id":"sha256:ca3c7ef11341746042c0cdf62f42144482a0cb172d2ffa98f6f3c322877564f8","target":"graph","created_at":"2026-07-05T05:07:40Z","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/2203.07737/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Cataracts are the leading cause of vision loss worldwide. Restoration algorithms are developed to improve the readability of cataract fundus images in order to increase the certainty in diagnosis and treatment for cataract patients. Unfortunately, the requirement of annotation limits the application of these algorithms in clinics. This paper proposes a network to annotation-freely restore cataractous fundus images (ArcNet) so as to boost the clinical practicability of restoration. Annotations are unnecessary in ArcNet, where the high-frequency component is extracted from fundus images to repla","authors_text":"Hanpei Miao, Haofeng Liu, Heng Li, Huazhu Fu, Jiang Liu, Yan Hu, Yitian Zhao","cross_cats":["cs.CV"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2022-03-15T09:11:48Z","title":"An Annotation-free Restoration Network for Cataractous Fundus Images"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.07737","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":"sha256:0e6def3ab3e09dda46cf40abefa6d00888e4015d3e96e22a3c5513e3ab3b712b","target":"record","created_at":"2026-07-05T05:07:40Z","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":"36359cd550c55924c7144c2f646386c0c4ed7e991b8f17df9e0b96118dd44a13","cross_cats_sorted":["cs.CV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2022-03-15T09:11:48Z","title_canon_sha256":"f9fd27de120998f3b2d61eb320650b2d3f48d6347a2ef853b5e2b6ae7ba31fc0"},"schema_version":"1.0","source":{"id":"2203.07737","kind":"arxiv","version":1}},"canonical_sha256":"82490e50f69a4ce6bc101ec2dd3d2127d2753f560845be9a1e45509e45814be6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"82490e50f69a4ce6bc101ec2dd3d2127d2753f560845be9a1e45509e45814be6","first_computed_at":"2026-07-05T05:07:40.328542Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:07:40.328542Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"brTTQAuR8UK2kP+C7iJoKBznDqAuNndfA9ZKmvr08lOfE5PjOiueNfXBtflsvhc8lXXDBwKiKL239QVRKuTjAg==","signature_status":"signed_v1","signed_at":"2026-07-05T05:07:40.329034Z","signed_message":"canonical_sha256_bytes"},"source_id":"2203.07737","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0e6def3ab3e09dda46cf40abefa6d00888e4015d3e96e22a3c5513e3ab3b712b","sha256:ca3c7ef11341746042c0cdf62f42144482a0cb172d2ffa98f6f3c322877564f8"],"state_sha256":"ed1095e385dc8ca2ad12b3ee25f2d11dc6556cc42d4a983f2b64c295bd59ed88"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+AaxDVVypWUGJgyGLGsdWv2z8wpK5qr/64H9FcV0As0NcW9Q9FvwH57Vy7vhjC19ePXGXUemnzYK04gSdbEvDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-18T02:39:26.433099Z","bundle_sha256":"fec5343f1d89daf508c9d0322ac20a7a996f48e38386291140ab50054c9292c4"}}