{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:PY6EQ6BFUW5HFEK77BDMUYHHTO","short_pith_number":"pith:PY6EQ6BF","canonical_record":{"source":{"id":"2501.12048","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2025-01-21T11:21:16Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"485017cfacbb6b96b3e380d9035828bb745c6305fa26c442e00960f830f9cb6f","abstract_canon_sha256":"fb3975c110f2eb16f83fe589cc2e70c247024c28d7ef123ff318dcd64d1d6097"},"schema_version":"1.0"},"canonical_sha256":"7e3c487825a5ba72915ff846ca60e79b9a323fc9125e9b2a6a09fac6a0624798","source":{"kind":"arxiv","id":"2501.12048","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2501.12048","created_at":"2026-07-05T10:03:31Z"},{"alias_kind":"arxiv_version","alias_value":"2501.12048v1","created_at":"2026-07-05T10:03:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2501.12048","created_at":"2026-07-05T10:03:31Z"},{"alias_kind":"pith_short_12","alias_value":"PY6EQ6BFUW5H","created_at":"2026-07-05T10:03:31Z"},{"alias_kind":"pith_short_16","alias_value":"PY6EQ6BFUW5HFEK7","created_at":"2026-07-05T10:03:31Z"},{"alias_kind":"pith_short_8","alias_value":"PY6EQ6BF","created_at":"2026-07-05T10:03:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:PY6EQ6BFUW5HFEK77BDMUYHHTO","target":"record","payload":{"canonical_record":{"source":{"id":"2501.12048","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2025-01-21T11:21:16Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"485017cfacbb6b96b3e380d9035828bb745c6305fa26c442e00960f830f9cb6f","abstract_canon_sha256":"fb3975c110f2eb16f83fe589cc2e70c247024c28d7ef123ff318dcd64d1d6097"},"schema_version":"1.0"},"canonical_sha256":"7e3c487825a5ba72915ff846ca60e79b9a323fc9125e9b2a6a09fac6a0624798","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:03:31.094946Z","signature_b64":"02d3QTpgWHlueYGpn40XnbM6H4292ozXRkHCdMm0NbJgPDrcofs+JfF/yQoWa4OIW/tHpQY/WXELsT3svh7/AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7e3c487825a5ba72915ff846ca60e79b9a323fc9125e9b2a6a09fac6a0624798","last_reissued_at":"2026-07-05T10:03:31.094603Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:03:31.094603Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2501.12048","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":"2026-07-05T10:03:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XPst0MOw8uU3FsQb3/UCmDui+6oy5DPaREvD0eidsFCbv0YP9b5Uq88HFcw9Oj3H+QZj+eg6OvLdmjV+OsqZAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T21:05:48.577437Z"},"content_sha256":"ce78d51a650521dbca17ce340e5f32989735a60b7195ff76f85bf310a237898a","schema_version":"1.0","event_id":"sha256:ce78d51a650521dbca17ce340e5f32989735a60b7195ff76f85bf310a237898a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:PY6EQ6BFUW5HFEK77BDMUYHHTO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Adaptive Class Learning to Screen Diabetic Disorders in Fundus Images of Eye","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.AI"],"primary_cat":"cs.CV","authors_text":"Pallabi Dutta, Rajiv Raman, Riddhasree Bhattacharyya, Shramana Dey, Surochita Pal, Sushmita Mitra","submitted_at":"2025-01-21T11:21:16Z","abstract_excerpt":"The prevalence of ocular illnesses is growing globally, presenting a substantial public health challenge. Early detection and timely intervention are crucial for averting visual impairment and enhancing patient prognosis. This research introduces a new framework called Class Extension with Limited Data (CELD) to train a classifier to categorize retinal fundus images. The classifier is initially trained to identify relevant features concerning Healthy and Diabetic Retinopathy (DR) classes and later fine-tuned to adapt to the task of classifying the input images into three classes: Healthy, DR, "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2501.12048","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/2501.12048/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":"2026-07-05T10:03:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IXE/yHNX4cJbDRbKi+45EfSFj4b10VxXd3hM/UFtzO2wUEWzfkzv/IYQVdvQ2KM0SwcPwPQS95ho1zWDoCtdCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T21:05:48.577958Z"},"content_sha256":"79045dcf11f85b26db23fb613a20d67905ce95f447ba2c449dd2226cc7e7c2e3","schema_version":"1.0","event_id":"sha256:79045dcf11f85b26db23fb613a20d67905ce95f447ba2c449dd2226cc7e7c2e3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PY6EQ6BFUW5HFEK77BDMUYHHTO/bundle.json","state_url":"https://pith.science/pith/PY6EQ6BFUW5HFEK77BDMUYHHTO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PY6EQ6BFUW5HFEK77BDMUYHHTO/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":"2026-08-04T21:05:48Z","links":{"resolver":"https://pith.science/pith/PY6EQ6BFUW5HFEK77BDMUYHHTO","bundle":"https://pith.science/pith/PY6EQ6BFUW5HFEK77BDMUYHHTO/bundle.json","state":"https://pith.science/pith/PY6EQ6BFUW5HFEK77BDMUYHHTO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PY6EQ6BFUW5HFEK77BDMUYHHTO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:PY6EQ6BFUW5HFEK77BDMUYHHTO","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":"fb3975c110f2eb16f83fe589cc2e70c247024c28d7ef123ff318dcd64d1d6097","cross_cats_sorted":["cs.AI"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2025-01-21T11:21:16Z","title_canon_sha256":"485017cfacbb6b96b3e380d9035828bb745c6305fa26c442e00960f830f9cb6f"},"schema_version":"1.0","source":{"id":"2501.12048","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2501.12048","created_at":"2026-07-05T10:03:31Z"},{"alias_kind":"arxiv_version","alias_value":"2501.12048v1","created_at":"2026-07-05T10:03:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2501.12048","created_at":"2026-07-05T10:03:31Z"},{"alias_kind":"pith_short_12","alias_value":"PY6EQ6BFUW5H","created_at":"2026-07-05T10:03:31Z"},{"alias_kind":"pith_short_16","alias_value":"PY6EQ6BFUW5HFEK7","created_at":"2026-07-05T10:03:31Z"},{"alias_kind":"pith_short_8","alias_value":"PY6EQ6BF","created_at":"2026-07-05T10:03:31Z"}],"graph_snapshots":[{"event_id":"sha256:79045dcf11f85b26db23fb613a20d67905ce95f447ba2c449dd2226cc7e7c2e3","target":"graph","created_at":"2026-07-05T10:03:31Z","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/2501.12048/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The prevalence of ocular illnesses is growing globally, presenting a substantial public health challenge. Early detection and timely intervention are crucial for averting visual impairment and enhancing patient prognosis. This research introduces a new framework called Class Extension with Limited Data (CELD) to train a classifier to categorize retinal fundus images. The classifier is initially trained to identify relevant features concerning Healthy and Diabetic Retinopathy (DR) classes and later fine-tuned to adapt to the task of classifying the input images into three classes: Healthy, DR, ","authors_text":"Pallabi Dutta, Rajiv Raman, Riddhasree Bhattacharyya, Shramana Dey, Surochita Pal, Sushmita Mitra","cross_cats":["cs.AI"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2025-01-21T11:21:16Z","title":"Adaptive Class Learning to Screen Diabetic Disorders in Fundus Images of Eye"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2501.12048","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:ce78d51a650521dbca17ce340e5f32989735a60b7195ff76f85bf310a237898a","target":"record","created_at":"2026-07-05T10:03:31Z","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":"fb3975c110f2eb16f83fe589cc2e70c247024c28d7ef123ff318dcd64d1d6097","cross_cats_sorted":["cs.AI"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2025-01-21T11:21:16Z","title_canon_sha256":"485017cfacbb6b96b3e380d9035828bb745c6305fa26c442e00960f830f9cb6f"},"schema_version":"1.0","source":{"id":"2501.12048","kind":"arxiv","version":1}},"canonical_sha256":"7e3c487825a5ba72915ff846ca60e79b9a323fc9125e9b2a6a09fac6a0624798","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7e3c487825a5ba72915ff846ca60e79b9a323fc9125e9b2a6a09fac6a0624798","first_computed_at":"2026-07-05T10:03:31.094603Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:03:31.094603Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"02d3QTpgWHlueYGpn40XnbM6H4292ozXRkHCdMm0NbJgPDrcofs+JfF/yQoWa4OIW/tHpQY/WXELsT3svh7/AA==","signature_status":"signed_v1","signed_at":"2026-07-05T10:03:31.094946Z","signed_message":"canonical_sha256_bytes"},"source_id":"2501.12048","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ce78d51a650521dbca17ce340e5f32989735a60b7195ff76f85bf310a237898a","sha256:79045dcf11f85b26db23fb613a20d67905ce95f447ba2c449dd2226cc7e7c2e3"],"state_sha256":"945ab2b4f4e35572642c4ef627a49a7eda1b496dab5e56cf09dd28cdf26bfb0c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"usA8orZ64vgNCWDd/O6gDxiY8pjfimcjvG5xJnG5tnBMk8YnChR7rei8/RgYVivk07gg5WIkP+2CeKMdaxkQBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T21:05:48.584194Z","bundle_sha256":"cc7a1553fc52fb3fd88f53e4f768ce7eda117dd12645cdd48e5afe8d38ae3dfa"}}