{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:H6ZER7EDWYCBA4EIBICDNGSMB5","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":"5098768be8d5795b580c26c8eca50932a3205f9bfb456199b154ae05d8ebd87f","cross_cats_sorted":["cs.AI"],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2026-07-28T09:34:30Z","title_canon_sha256":"bd93c1ad34df7c3ba704d389a631cce992125ce5dfa532e6eb4cb176bef4961e"},"schema_version":"1.0","source":{"id":"2607.25497","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.25497","created_at":"2026-07-29T01:25:18Z"},{"alias_kind":"arxiv_version","alias_value":"2607.25497v1","created_at":"2026-07-29T01:25:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.25497","created_at":"2026-07-29T01:25:18Z"},{"alias_kind":"pith_short_12","alias_value":"H6ZER7EDWYCB","created_at":"2026-07-29T01:25:18Z"},{"alias_kind":"pith_short_16","alias_value":"H6ZER7EDWYCBA4EI","created_at":"2026-07-29T01:25:18Z"},{"alias_kind":"pith_short_8","alias_value":"H6ZER7ED","created_at":"2026-07-29T01:25:18Z"}],"graph_snapshots":[{"event_id":"sha256:62bf62dc96e4647ff0c366ef6e7994ff01c56409ab92ac05a3b472e10b21dbd3","target":"graph","created_at":"2026-07-29T01:25:18Z","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/2607.25497/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Pathology foundation models are approaching clinical deployment, yet remain vulnerable to systematic non-biological variation across centres. Differences in tissue preparation, staining and scanning are strongly encoded in their representations, enabling shortcut learning and weakening generalisation across cohorts and institutions. The Robustness Index (RI) quantifies whether local representation geometry is dominated by biology or by non-biological variation, but its count-based formulation discards distance information. We show that adding distance weights changes little because the deeper ","authors_text":"Cl\\'ement Grisi, Geert Litjens, Jeroen van der Laak","cross_cats":["cs.AI"],"headline":"","license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2026-07-28T09:34:30Z","title":"Beyond Counts: A Distributional Robustness Margin For Pathology Foundation Models"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.25497","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":"sha256:14ca5d9ef0783a4f72a7d87a9ff4c217b5cb9a7fe63e684e4cae55b756385940","target":"record","created_at":"2026-07-29T01:25:18Z","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":"5098768be8d5795b580c26c8eca50932a3205f9bfb456199b154ae05d8ebd87f","cross_cats_sorted":["cs.AI"],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2026-07-28T09:34:30Z","title_canon_sha256":"bd93c1ad34df7c3ba704d389a631cce992125ce5dfa532e6eb4cb176bef4961e"},"schema_version":"1.0","source":{"id":"2607.25497","kind":"arxiv","version":1}},"canonical_sha256":"3fb248fc83b6041070880a04369a4c0f5606a827aedc29aa5c0fe09b52ce6a27","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3fb248fc83b6041070880a04369a4c0f5606a827aedc29aa5c0fe09b52ce6a27","first_computed_at":"2026-07-29T01:25:18.342759Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-29T01:25:18.342759Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UO2RYVON9LEsNTrjYc1tLR2c3kcSsAEQErL48/GwCLj1uwHq6M6JX+jCuFCzCAMUsBUymC4nfdMtM8ml2D4+CA==","signature_status":"signed_v1","signed_at":"2026-07-29T01:25:18.343635Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.25497","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:14ca5d9ef0783a4f72a7d87a9ff4c217b5cb9a7fe63e684e4cae55b756385940","sha256:62bf62dc96e4647ff0c366ef6e7994ff01c56409ab92ac05a3b472e10b21dbd3"],"state_sha256":"903281e350e1ceabc935c1b112a4beebe70efad32785c0ffcc4fedddd104081d"}