{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:WCO5JWLILVDQLXO3EFT4VGC6JJ","short_pith_number":"pith:WCO5JWLI","canonical_record":{"source":{"id":"2106.12265","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2021-06-23T09:42:49Z","cross_cats_sorted":[],"title_canon_sha256":"3c98e6840bfe0109890086404146e8f3b185a7e6f227801c9f666ffcc7b6e5a7","abstract_canon_sha256":"6b684a81bbf46770c21d56027207c5ad0a93d3dbe330ababa5bca84d90fc0005"},"schema_version":"1.0"},"canonical_sha256":"b09dd4d9685d4705dddb2167ca985e4a643b6733657e28ca47dd3172f2c6fd5a","source":{"kind":"arxiv","id":"2106.12265","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2106.12265","created_at":"2026-07-05T02:51:44Z"},{"alias_kind":"arxiv_version","alias_value":"2106.12265v1","created_at":"2026-07-05T02:51:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2106.12265","created_at":"2026-07-05T02:51:44Z"},{"alias_kind":"pith_short_12","alias_value":"WCO5JWLILVDQ","created_at":"2026-07-05T02:51:44Z"},{"alias_kind":"pith_short_16","alias_value":"WCO5JWLILVDQLXO3","created_at":"2026-07-05T02:51:44Z"},{"alias_kind":"pith_short_8","alias_value":"WCO5JWLI","created_at":"2026-07-05T02:51:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:WCO5JWLILVDQLXO3EFT4VGC6JJ","target":"record","payload":{"canonical_record":{"source":{"id":"2106.12265","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2021-06-23T09:42:49Z","cross_cats_sorted":[],"title_canon_sha256":"3c98e6840bfe0109890086404146e8f3b185a7e6f227801c9f666ffcc7b6e5a7","abstract_canon_sha256":"6b684a81bbf46770c21d56027207c5ad0a93d3dbe330ababa5bca84d90fc0005"},"schema_version":"1.0"},"canonical_sha256":"b09dd4d9685d4705dddb2167ca985e4a643b6733657e28ca47dd3172f2c6fd5a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:51:44.203165Z","signature_b64":"NVVZGHa7N0TUhtHnG6BBatlvPxI8ZAVL4jygiIA7NRrZFwatJ7rEokrttdWizxIIxsBGLBSE5h1pQNcUk4pIDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b09dd4d9685d4705dddb2167ca985e4a643b6733657e28ca47dd3172f2c6fd5a","last_reissued_at":"2026-07-05T02:51:44.202698Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:51:44.202698Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2106.12265","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":"2026-07-05T02:51:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DBhtrR6/H68navJCX9ZX36izn1HsFlRzQPkezPBro6toZSPS4ajHsaWpmkUalw9dtQ4U0xvWhepe1hT7RfmkAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T18:50:13.646471Z"},"content_sha256":"c5e2d1622807fb368fb51d7d7b0a085846a9673555d594e4eaac2e53af704855","schema_version":"1.0","event_id":"sha256:c5e2d1622807fb368fb51d7d7b0a085846a9673555d594e4eaac2e53af704855"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:WCO5JWLILVDQLXO3EFT4VGC6JJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Instance-based Vision Transformer for Subtyping of Papillary Renal Cell Carcinoma in Histopathological Image","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Bangyang Hong, Chang Jia, Chen Li, Chunbao Wang, Deyu Meng, Jialun Wu, Xianli Zhang, Yang Li, Zeyu Gao","submitted_at":"2021-06-23T09:42:49Z","abstract_excerpt":"Histological subtype of papillary (p) renal cell carcinoma (RCC), type 1 vs. type 2, is an essential prognostic factor. The two subtypes of pRCC have a similar pattern, i.e., the papillary architecture, yet some subtle differences, including cellular and cell-layer level patterns. However, the cellular and cell-layer level patterns almost cannot be captured by existing CNN-based models in large-size histopathological images, which brings obstacles to directly applying these models to such a fine-grained classification task. This paper proposes a novel instance-based Vision Transformer (i-ViT) "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2106.12265","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/2106.12265/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":"2026-07-05T02:51:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mlRB+iCxfD+Ac2dUnPwqbJ3SrwtMs2z3rSThQmwthWnua34qAGwod6Gw4mNZktmQqmMGtuoGlMNfYvk3TXFJAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T18:50:13.646999Z"},"content_sha256":"d5e725aa8798b43ff62d9e232687a7b5e6abcd903fae1609bff07cadf44ee005","schema_version":"1.0","event_id":"sha256:d5e725aa8798b43ff62d9e232687a7b5e6abcd903fae1609bff07cadf44ee005"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WCO5JWLILVDQLXO3EFT4VGC6JJ/bundle.json","state_url":"https://pith.science/pith/WCO5JWLILVDQLXO3EFT4VGC6JJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WCO5JWLILVDQLXO3EFT4VGC6JJ/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":"2026-08-22T18:50:13Z","links":{"resolver":"https://pith.science/pith/WCO5JWLILVDQLXO3EFT4VGC6JJ","bundle":"https://pith.science/pith/WCO5JWLILVDQLXO3EFT4VGC6JJ/bundle.json","state":"https://pith.science/pith/WCO5JWLILVDQLXO3EFT4VGC6JJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WCO5JWLILVDQLXO3EFT4VGC6JJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:WCO5JWLILVDQLXO3EFT4VGC6JJ","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":"6b684a81bbf46770c21d56027207c5ad0a93d3dbe330ababa5bca84d90fc0005","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2021-06-23T09:42:49Z","title_canon_sha256":"3c98e6840bfe0109890086404146e8f3b185a7e6f227801c9f666ffcc7b6e5a7"},"schema_version":"1.0","source":{"id":"2106.12265","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2106.12265","created_at":"2026-07-05T02:51:44Z"},{"alias_kind":"arxiv_version","alias_value":"2106.12265v1","created_at":"2026-07-05T02:51:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2106.12265","created_at":"2026-07-05T02:51:44Z"},{"alias_kind":"pith_short_12","alias_value":"WCO5JWLILVDQ","created_at":"2026-07-05T02:51:44Z"},{"alias_kind":"pith_short_16","alias_value":"WCO5JWLILVDQLXO3","created_at":"2026-07-05T02:51:44Z"},{"alias_kind":"pith_short_8","alias_value":"WCO5JWLI","created_at":"2026-07-05T02:51:44Z"}],"graph_snapshots":[{"event_id":"sha256:d5e725aa8798b43ff62d9e232687a7b5e6abcd903fae1609bff07cadf44ee005","target":"graph","created_at":"2026-07-05T02:51:44Z","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/2106.12265/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Histological subtype of papillary (p) renal cell carcinoma (RCC), type 1 vs. type 2, is an essential prognostic factor. The two subtypes of pRCC have a similar pattern, i.e., the papillary architecture, yet some subtle differences, including cellular and cell-layer level patterns. However, the cellular and cell-layer level patterns almost cannot be captured by existing CNN-based models in large-size histopathological images, which brings obstacles to directly applying these models to such a fine-grained classification task. This paper proposes a novel instance-based Vision Transformer (i-ViT) ","authors_text":"Bangyang Hong, Chang Jia, Chen Li, Chunbao Wang, Deyu Meng, Jialun Wu, Xianli Zhang, Yang Li, Zeyu Gao","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2021-06-23T09:42:49Z","title":"Instance-based Vision Transformer for Subtyping of Papillary Renal Cell Carcinoma in Histopathological Image"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2106.12265","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:c5e2d1622807fb368fb51d7d7b0a085846a9673555d594e4eaac2e53af704855","target":"record","created_at":"2026-07-05T02:51:44Z","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":"6b684a81bbf46770c21d56027207c5ad0a93d3dbe330ababa5bca84d90fc0005","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2021-06-23T09:42:49Z","title_canon_sha256":"3c98e6840bfe0109890086404146e8f3b185a7e6f227801c9f666ffcc7b6e5a7"},"schema_version":"1.0","source":{"id":"2106.12265","kind":"arxiv","version":1}},"canonical_sha256":"b09dd4d9685d4705dddb2167ca985e4a643b6733657e28ca47dd3172f2c6fd5a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b09dd4d9685d4705dddb2167ca985e4a643b6733657e28ca47dd3172f2c6fd5a","first_computed_at":"2026-07-05T02:51:44.202698Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:51:44.202698Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NVVZGHa7N0TUhtHnG6BBatlvPxI8ZAVL4jygiIA7NRrZFwatJ7rEokrttdWizxIIxsBGLBSE5h1pQNcUk4pIDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T02:51:44.203165Z","signed_message":"canonical_sha256_bytes"},"source_id":"2106.12265","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c5e2d1622807fb368fb51d7d7b0a085846a9673555d594e4eaac2e53af704855","sha256:d5e725aa8798b43ff62d9e232687a7b5e6abcd903fae1609bff07cadf44ee005"],"state_sha256":"5405ab8061e6d441d8863733801e9ca4e5ce6c785142f3d3dbf7037a4a6d0be4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XK2XM6No6HnkyOELcXL2sHKdvaAvg5DonOroxit6Xdh533Nro+0WwPto7OLuJRownGo4hS4mJdMGUTMlyGC3Dw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-22T18:50:13.651749Z","bundle_sha256":"8466a5131f35751717c039d45fb33f7e2d768f9196eae27505b11090515f6dea"}}