{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:7JGRUHESG5B62Y64CEMNUONX3E","short_pith_number":"pith:7JGRUHES","canonical_record":{"source":{"id":"1908.06623","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-08-19T07:34:02Z","cross_cats_sorted":[],"title_canon_sha256":"813417223fdc16841bf8b47bc008be4acf46c40ecdae46dcc77d8b95cc5d9792","abstract_canon_sha256":"0fedbd0befa2c4f7dfa3dad04d059a148670a691471ef9d0110e5d74f221739b"},"schema_version":"1.0"},"canonical_sha256":"fa4d1a1c923743ed63dc1118da39b7d916189b633e243ba275e9793a251264d7","source":{"kind":"arxiv","id":"1908.06623","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.06623","created_at":"2026-07-04T23:58:17Z"},{"alias_kind":"arxiv_version","alias_value":"1908.06623v1","created_at":"2026-07-04T23:58:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.06623","created_at":"2026-07-04T23:58:17Z"},{"alias_kind":"pith_short_12","alias_value":"7JGRUHESG5B6","created_at":"2026-07-04T23:58:17Z"},{"alias_kind":"pith_short_16","alias_value":"7JGRUHESG5B62Y64","created_at":"2026-07-04T23:58:17Z"},{"alias_kind":"pith_short_8","alias_value":"7JGRUHES","created_at":"2026-07-04T23:58:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:7JGRUHESG5B62Y64CEMNUONX3E","target":"record","payload":{"canonical_record":{"source":{"id":"1908.06623","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-08-19T07:34:02Z","cross_cats_sorted":[],"title_canon_sha256":"813417223fdc16841bf8b47bc008be4acf46c40ecdae46dcc77d8b95cc5d9792","abstract_canon_sha256":"0fedbd0befa2c4f7dfa3dad04d059a148670a691471ef9d0110e5d74f221739b"},"schema_version":"1.0"},"canonical_sha256":"fa4d1a1c923743ed63dc1118da39b7d916189b633e243ba275e9793a251264d7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T23:58:17.769207Z","signature_b64":"OqGGgXVtvGJwQ+gSOLDbOctX28J5gzh2Fu8EcHuUzWXJ4CWqDJ+2Umqy4+h0TGpZRjPiNnHaizSKHwCcGTeaCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fa4d1a1c923743ed63dc1118da39b7d916189b633e243ba275e9793a251264d7","last_reissued_at":"2026-07-04T23:58:17.768818Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T23:58:17.768818Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1908.06623","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":"2026-07-04T23:58:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pwBXHUske0USrfXVx7k4Y6cVmUf0npTr6LXGzhQwWJz81icittGX9YlOn0PRpif0vsdcm5nbZdM7B+lj02wZCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T12:12:45.667016Z"},"content_sha256":"8b03a5e9195699780082c0165965ee9cc98fe15c4b6774a445793f35e7ebd755","schema_version":"1.0","event_id":"sha256:8b03a5e9195699780082c0165965ee9cc98fe15c4b6774a445793f35e7ebd755"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:7JGRUHESG5B62Y64CEMNUONX3E","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"IRNet: Instance Relation Network for Overlapping Cervical Cell Segmentation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Hao Chen, Jiaqi Xu, Pheng-Ann Heng, Qi Dou, Yanning Zhou","submitted_at":"2019-08-19T07:34:02Z","abstract_excerpt":"Cell instance segmentation in Pap smear image remains challenging due to the wide existence of occlusion among translucent cytoplasm in cell clumps. Conventional methods heavily rely on accurate nuclei detection results and are easily disturbed by miscellaneous objects. In this paper, we propose a novel Instance Relation Network (IRNet) for robust overlapping cell segmentation by exploring instance relation interaction. Specifically, we propose the Instance Relation Module to construct the cell association matrix for transferring information among individual cell-instance features. With the co"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.06623","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/1908.06623/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":"2026-07-04T23:58:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PUdBCuNj+rbZlBJxdrjZgSR3bWP8PwXdNTPVSSi3mx9+Uv+3RppgJ1oiDTfffS3QpFzS11zBtlke6G1M2NkcBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T12:12:45.667513Z"},"content_sha256":"37e9377401333d4126625b474dc89659eebe23c602084ea7095da1771b148508","schema_version":"1.0","event_id":"sha256:37e9377401333d4126625b474dc89659eebe23c602084ea7095da1771b148508"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7JGRUHESG5B62Y64CEMNUONX3E/bundle.json","state_url":"https://pith.science/pith/7JGRUHESG5B62Y64CEMNUONX3E/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7JGRUHESG5B62Y64CEMNUONX3E/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":"2026-08-16T12:12:45Z","links":{"resolver":"https://pith.science/pith/7JGRUHESG5B62Y64CEMNUONX3E","bundle":"https://pith.science/pith/7JGRUHESG5B62Y64CEMNUONX3E/bundle.json","state":"https://pith.science/pith/7JGRUHESG5B62Y64CEMNUONX3E/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7JGRUHESG5B62Y64CEMNUONX3E/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:7JGRUHESG5B62Y64CEMNUONX3E","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":"0fedbd0befa2c4f7dfa3dad04d059a148670a691471ef9d0110e5d74f221739b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-08-19T07:34:02Z","title_canon_sha256":"813417223fdc16841bf8b47bc008be4acf46c40ecdae46dcc77d8b95cc5d9792"},"schema_version":"1.0","source":{"id":"1908.06623","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.06623","created_at":"2026-07-04T23:58:17Z"},{"alias_kind":"arxiv_version","alias_value":"1908.06623v1","created_at":"2026-07-04T23:58:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.06623","created_at":"2026-07-04T23:58:17Z"},{"alias_kind":"pith_short_12","alias_value":"7JGRUHESG5B6","created_at":"2026-07-04T23:58:17Z"},{"alias_kind":"pith_short_16","alias_value":"7JGRUHESG5B62Y64","created_at":"2026-07-04T23:58:17Z"},{"alias_kind":"pith_short_8","alias_value":"7JGRUHES","created_at":"2026-07-04T23:58:17Z"}],"graph_snapshots":[{"event_id":"sha256:37e9377401333d4126625b474dc89659eebe23c602084ea7095da1771b148508","target":"graph","created_at":"2026-07-04T23:58:17Z","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/1908.06623/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Cell instance segmentation in Pap smear image remains challenging due to the wide existence of occlusion among translucent cytoplasm in cell clumps. Conventional methods heavily rely on accurate nuclei detection results and are easily disturbed by miscellaneous objects. In this paper, we propose a novel Instance Relation Network (IRNet) for robust overlapping cell segmentation by exploring instance relation interaction. Specifically, we propose the Instance Relation Module to construct the cell association matrix for transferring information among individual cell-instance features. With the co","authors_text":"Hao Chen, Jiaqi Xu, Pheng-Ann Heng, Qi Dou, Yanning Zhou","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-08-19T07:34:02Z","title":"IRNet: Instance Relation Network for Overlapping Cervical Cell Segmentation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.06623","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":"sha256:8b03a5e9195699780082c0165965ee9cc98fe15c4b6774a445793f35e7ebd755","target":"record","created_at":"2026-07-04T23:58:17Z","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":"0fedbd0befa2c4f7dfa3dad04d059a148670a691471ef9d0110e5d74f221739b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-08-19T07:34:02Z","title_canon_sha256":"813417223fdc16841bf8b47bc008be4acf46c40ecdae46dcc77d8b95cc5d9792"},"schema_version":"1.0","source":{"id":"1908.06623","kind":"arxiv","version":1}},"canonical_sha256":"fa4d1a1c923743ed63dc1118da39b7d916189b633e243ba275e9793a251264d7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fa4d1a1c923743ed63dc1118da39b7d916189b633e243ba275e9793a251264d7","first_computed_at":"2026-07-04T23:58:17.768818Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T23:58:17.768818Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OqGGgXVtvGJwQ+gSOLDbOctX28J5gzh2Fu8EcHuUzWXJ4CWqDJ+2Umqy4+h0TGpZRjPiNnHaizSKHwCcGTeaCA==","signature_status":"signed_v1","signed_at":"2026-07-04T23:58:17.769207Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.06623","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8b03a5e9195699780082c0165965ee9cc98fe15c4b6774a445793f35e7ebd755","sha256:37e9377401333d4126625b474dc89659eebe23c602084ea7095da1771b148508"],"state_sha256":"ace1abf34564c2c3f582476e81e59a8c035fed4b97f409a9138ef88c8b7b6eca"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"didrpWkhMRyf+VmnNUWmbuIyNHH558xkhENc0EzpOlbBdPhHQvGSuWz9riQEZgFtNDqDnm5ylI2VoRpJbGVZAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-16T12:12:45.672113Z","bundle_sha256":"ce99058350d893905e4c9768dd3d8eec093b893c1800ab99c0479382f6e31463"}}