{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:Z4UJODEGE3MUIJ22R3A6GUWDOQ","short_pith_number":"pith:Z4UJODEG","canonical_record":{"source":{"id":"1902.01040","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2019-02-04T05:46:47Z","cross_cats_sorted":["cs.LG","stat.ML"],"title_canon_sha256":"fb5b699e8dae642665619a7c19d9a07725cb60b2ed18e743ea6e24f7350e8b25","abstract_canon_sha256":"176f7524d288f35e4872a34d8ca1913d8deb2cf90cf6abed38a1dcfe86556a2b"},"schema_version":"1.0"},"canonical_sha256":"cf28970c8626d944275a8ec1e352c3742d67b5575dd9705783031846623e56e5","source":{"kind":"arxiv","id":"1902.01040","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.01040","created_at":"2026-05-17T23:54:49Z"},{"alias_kind":"arxiv_version","alias_value":"1902.01040v1","created_at":"2026-05-17T23:54:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.01040","created_at":"2026-05-17T23:54:49Z"},{"alias_kind":"pith_short_12","alias_value":"Z4UJODEGE3MU","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"Z4UJODEGE3MUIJ22","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"Z4UJODEG","created_at":"2026-05-18T12:33:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:Z4UJODEGE3MUIJ22R3A6GUWDOQ","target":"record","payload":{"canonical_record":{"source":{"id":"1902.01040","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2019-02-04T05:46:47Z","cross_cats_sorted":["cs.LG","stat.ML"],"title_canon_sha256":"fb5b699e8dae642665619a7c19d9a07725cb60b2ed18e743ea6e24f7350e8b25","abstract_canon_sha256":"176f7524d288f35e4872a34d8ca1913d8deb2cf90cf6abed38a1dcfe86556a2b"},"schema_version":"1.0"},"canonical_sha256":"cf28970c8626d944275a8ec1e352c3742d67b5575dd9705783031846623e56e5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:54:49.830422Z","signature_b64":"9pPBQ/FI/0BweCmrLhXd3whuU15BXOJzss75V5MJnfykZuFP+HYdjBjrNkmUx7XCsXOU2bcq0FOaC3M0xNOEAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cf28970c8626d944275a8ec1e352c3742d67b5575dd9705783031846623e56e5","last_reissued_at":"2026-05-17T23:54:49.829812Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:54:49.829812Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1902.01040","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":"2026-05-17T23:54:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QR/qAu60/UPrDGf4uYTGM7IL3FeP5ivU5BBo/x3+IbnJoOl6yoxPbI8dGP/P7a+jKY0AoXotFUgu6DAtQYArBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T01:32:06.112642Z"},"content_sha256":"a327c54cd09eb06c3a62ef7f750a2e9c2bc744c2de0f260d95c43ea06dc9b991","schema_version":"1.0","event_id":"sha256:a327c54cd09eb06c3a62ef7f750a2e9c2bc744c2de0f260d95c43ea06dc9b991"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:Z4UJODEGE3MUIJ22R3A6GUWDOQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Fully Convolutional Networks for Monocular Retinal Depth Estimation and Optic Disc-Cup Segmentation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.LG","stat.ML"],"primary_cat":"eess.IV","authors_text":"Kaushik Mitra, Keerthi Ram, Mohanasankar Sivaprakasam, Sharath M Shankaranarayana","submitted_at":"2019-02-04T05:46:47Z","abstract_excerpt":"Glaucoma is a serious ocular disorder for which the screening and diagnosis are carried out by the examination of the optic nerve head (ONH). The color fundus image (CFI) is the most common modality used for ocular screening. In CFI, the central r"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.01040","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":""},"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":"2026-05-17T23:54:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O9dMQfJiP2e1JBsUCdKx2T5JRsIhemyhFJ9XXvv4Sq6NxUcRUahrP3qFcToUxeKGSjnyVHWRkDl6uZdfQdShCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T01:32:06.113140Z"},"content_sha256":"9d1f4f795c4330e33f20769fdafaf6aa459ee431a6b83b0ab1c8ae0480d62c7c","schema_version":"1.0","event_id":"sha256:9d1f4f795c4330e33f20769fdafaf6aa459ee431a6b83b0ab1c8ae0480d62c7c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Z4UJODEGE3MUIJ22R3A6GUWDOQ/bundle.json","state_url":"https://pith.science/pith/Z4UJODEGE3MUIJ22R3A6GUWDOQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Z4UJODEGE3MUIJ22R3A6GUWDOQ/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":"2026-05-28T01:32:06Z","links":{"resolver":"https://pith.science/pith/Z4UJODEGE3MUIJ22R3A6GUWDOQ","bundle":"https://pith.science/pith/Z4UJODEGE3MUIJ22R3A6GUWDOQ/bundle.json","state":"https://pith.science/pith/Z4UJODEGE3MUIJ22R3A6GUWDOQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Z4UJODEGE3MUIJ22R3A6GUWDOQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:Z4UJODEGE3MUIJ22R3A6GUWDOQ","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":"176f7524d288f35e4872a34d8ca1913d8deb2cf90cf6abed38a1dcfe86556a2b","cross_cats_sorted":["cs.LG","stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2019-02-04T05:46:47Z","title_canon_sha256":"fb5b699e8dae642665619a7c19d9a07725cb60b2ed18e743ea6e24f7350e8b25"},"schema_version":"1.0","source":{"id":"1902.01040","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.01040","created_at":"2026-05-17T23:54:49Z"},{"alias_kind":"arxiv_version","alias_value":"1902.01040v1","created_at":"2026-05-17T23:54:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.01040","created_at":"2026-05-17T23:54:49Z"},{"alias_kind":"pith_short_12","alias_value":"Z4UJODEGE3MU","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"Z4UJODEGE3MUIJ22","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"Z4UJODEG","created_at":"2026-05-18T12:33:33Z"}],"graph_snapshots":[{"event_id":"sha256:9d1f4f795c4330e33f20769fdafaf6aa459ee431a6b83b0ab1c8ae0480d62c7c","target":"graph","created_at":"2026-05-17T23:54:49Z","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"},"paper":{"abstract_excerpt":"Glaucoma is a serious ocular disorder for which the screening and diagnosis are carried out by the examination of the optic nerve head (ONH). The color fundus image (CFI) is the most common modality used for ocular screening. In CFI, the central r","authors_text":"Kaushik Mitra, Keerthi Ram, Mohanasankar Sivaprakasam, Sharath M Shankaranarayana","cross_cats":["cs.LG","stat.ML"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2019-02-04T05:46:47Z","title":"Fully Convolutional Networks for Monocular Retinal Depth Estimation and Optic Disc-Cup Segmentation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.01040","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:a327c54cd09eb06c3a62ef7f750a2e9c2bc744c2de0f260d95c43ea06dc9b991","target":"record","created_at":"2026-05-17T23:54:49Z","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":"176f7524d288f35e4872a34d8ca1913d8deb2cf90cf6abed38a1dcfe86556a2b","cross_cats_sorted":["cs.LG","stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2019-02-04T05:46:47Z","title_canon_sha256":"fb5b699e8dae642665619a7c19d9a07725cb60b2ed18e743ea6e24f7350e8b25"},"schema_version":"1.0","source":{"id":"1902.01040","kind":"arxiv","version":1}},"canonical_sha256":"cf28970c8626d944275a8ec1e352c3742d67b5575dd9705783031846623e56e5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cf28970c8626d944275a8ec1e352c3742d67b5575dd9705783031846623e56e5","first_computed_at":"2026-05-17T23:54:49.829812Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:54:49.829812Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9pPBQ/FI/0BweCmrLhXd3whuU15BXOJzss75V5MJnfykZuFP+HYdjBjrNkmUx7XCsXOU2bcq0FOaC3M0xNOEAQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:54:49.830422Z","signed_message":"canonical_sha256_bytes"},"source_id":"1902.01040","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a327c54cd09eb06c3a62ef7f750a2e9c2bc744c2de0f260d95c43ea06dc9b991","sha256:9d1f4f795c4330e33f20769fdafaf6aa459ee431a6b83b0ab1c8ae0480d62c7c"],"state_sha256":"98605a7f613b45a5adebbc31566b095b56f30fe5ecf39ce70202e08aa5083346"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8fJIqQs7JWAszyZtPVWfZcEvDR7oPPwB9geNQbCmBXb17acoxchuGOmv0ZZtQLJ61z2uSmmoWVKEIiRRwsiBDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T01:32:06.115365Z","bundle_sha256":"4743abfcc8c6f59d140b47835beeb1bfc7e4f6c84527f3d380c359d2f8546b7b"}}