{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:C7ZEXKSAQF2BFX4ZPVELJOZFRW","short_pith_number":"pith:C7ZEXKSA","canonical_record":{"source":{"id":"2606.11606","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2026-06-10T03:06:32Z","cross_cats_sorted":[],"title_canon_sha256":"7c18f5f8a54faf75d516a0fa6f399297db47dd5213788eefae133275ce96cf08","abstract_canon_sha256":"b6851ff729fa2cae300970f64700747e99d7dda0e35eb5b2f9903a080b03b6e0"},"schema_version":"1.0"},"canonical_sha256":"17f24baa40817412df997d48b4bb258db65249d7512773315aba13cafaa4dd3c","source":{"kind":"arxiv","id":"2606.11606","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.11606","created_at":"2026-06-11T01:09:58Z"},{"alias_kind":"arxiv_version","alias_value":"2606.11606v1","created_at":"2026-06-11T01:09:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.11606","created_at":"2026-06-11T01:09:58Z"},{"alias_kind":"pith_short_12","alias_value":"C7ZEXKSAQF2B","created_at":"2026-06-11T01:09:58Z"},{"alias_kind":"pith_short_16","alias_value":"C7ZEXKSAQF2BFX4Z","created_at":"2026-06-11T01:09:58Z"},{"alias_kind":"pith_short_8","alias_value":"C7ZEXKSA","created_at":"2026-06-11T01:09:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:C7ZEXKSAQF2BFX4ZPVELJOZFRW","target":"record","payload":{"canonical_record":{"source":{"id":"2606.11606","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2026-06-10T03:06:32Z","cross_cats_sorted":[],"title_canon_sha256":"7c18f5f8a54faf75d516a0fa6f399297db47dd5213788eefae133275ce96cf08","abstract_canon_sha256":"b6851ff729fa2cae300970f64700747e99d7dda0e35eb5b2f9903a080b03b6e0"},"schema_version":"1.0"},"canonical_sha256":"17f24baa40817412df997d48b4bb258db65249d7512773315aba13cafaa4dd3c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-11T01:09:58.762623Z","signature_b64":"pCj84TOhuqz4CkuE8B19uBKgOBwAbpZcmogtFjPniM33a9UdijELg6x8jVONbQZShC69fpqBFk2U1b3BftY7AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"17f24baa40817412df997d48b4bb258db65249d7512773315aba13cafaa4dd3c","last_reissued_at":"2026-06-11T01:09:58.761585Z","signature_status":"signed_v1","first_computed_at":"2026-06-11T01:09:58.761585Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.11606","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":"2026-06-11T01:09:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jb80Kkn2aqaBG+zbr/dpFdhm2ChOJsjpPVtspJR4amxxRb0vLAc8bCtt/j7oMSVYsljj/ng6ZgnOKA2SxZBJBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-03T15:01:43.532003Z"},"content_sha256":"7ffd00e91351780605ba70bfa1862b00320d0e8420658236881b2f88308c6b2b","schema_version":"1.0","event_id":"sha256:7ffd00e91351780605ba70bfa1862b00320d0e8420658236881b2f88308c6b2b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:C7ZEXKSAQF2BFX4ZPVELJOZFRW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Frozen Foundation-Model Embeddings Discard Small-Lesion Signal in Chest Radiography: Implications for Pre-Deployment Evaluation","license":"http://creativecommons.org/licenses/by-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Alekhya Jilla, Bardia Khosravi, Frank Li, Judy Gichoya, Mohammadreza Chavoshi, Raajitha Muthyala, Saptarshi Purkayastha, Theo Dapamede, Zhenan Yin","submitted_at":"2026-06-10T03:06:32Z","abstract_excerpt":"Frozen vision-transformer (ViT) foundation-model embeddings increasingly serve as the substrate for downstream chest-radiography (CXR) pipelines, yet where small-scale, low-contrast signal is retained or lost in the frozen forward pass has not been systematically quantified across architectures, pretraining domains, and objectives. We probed five frozen ViTs (RAD-DINO, DINOv2-B/14, DINOv3 ViT-7B, BiomedCLIP, MedSigLIP) and a frozen DINO-pretrained ResNet-50 architectural control across three large CXR cohorts (NIH-CXR14, MIMIC-CXR, Emory-CXR; aggregate pool n=492,724) and ChestX-Det10 (n=3,543"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.11606","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/2606.11606/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":"2026-06-11T01:09:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1o5kMQwmwUXKOOfTznGXwOPAA/V9bbBaY1XYIRxcn3djfayGizOpxiM2Oqjr5yk1uWGUk/YisOAGWcOqrijeBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-03T15:01:43.532399Z"},"content_sha256":"de22244c5d5fbad25f85acce089ed4c8c72bb2f3480c6bf4039b51516af7ce82","schema_version":"1.0","event_id":"sha256:de22244c5d5fbad25f85acce089ed4c8c72bb2f3480c6bf4039b51516af7ce82"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/C7ZEXKSAQF2BFX4ZPVELJOZFRW/bundle.json","state_url":"https://pith.science/pith/C7ZEXKSAQF2BFX4ZPVELJOZFRW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/C7ZEXKSAQF2BFX4ZPVELJOZFRW/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":"2026-07-03T15:01:43Z","links":{"resolver":"https://pith.science/pith/C7ZEXKSAQF2BFX4ZPVELJOZFRW","bundle":"https://pith.science/pith/C7ZEXKSAQF2BFX4ZPVELJOZFRW/bundle.json","state":"https://pith.science/pith/C7ZEXKSAQF2BFX4ZPVELJOZFRW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/C7ZEXKSAQF2BFX4ZPVELJOZFRW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:C7ZEXKSAQF2BFX4ZPVELJOZFRW","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":"b6851ff729fa2cae300970f64700747e99d7dda0e35eb5b2f9903a080b03b6e0","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2026-06-10T03:06:32Z","title_canon_sha256":"7c18f5f8a54faf75d516a0fa6f399297db47dd5213788eefae133275ce96cf08"},"schema_version":"1.0","source":{"id":"2606.11606","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.11606","created_at":"2026-06-11T01:09:58Z"},{"alias_kind":"arxiv_version","alias_value":"2606.11606v1","created_at":"2026-06-11T01:09:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.11606","created_at":"2026-06-11T01:09:58Z"},{"alias_kind":"pith_short_12","alias_value":"C7ZEXKSAQF2B","created_at":"2026-06-11T01:09:58Z"},{"alias_kind":"pith_short_16","alias_value":"C7ZEXKSAQF2BFX4Z","created_at":"2026-06-11T01:09:58Z"},{"alias_kind":"pith_short_8","alias_value":"C7ZEXKSA","created_at":"2026-06-11T01:09:58Z"}],"graph_snapshots":[{"event_id":"sha256:de22244c5d5fbad25f85acce089ed4c8c72bb2f3480c6bf4039b51516af7ce82","target":"graph","created_at":"2026-06-11T01:09:58Z","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/2606.11606/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Frozen vision-transformer (ViT) foundation-model embeddings increasingly serve as the substrate for downstream chest-radiography (CXR) pipelines, yet where small-scale, low-contrast signal is retained or lost in the frozen forward pass has not been systematically quantified across architectures, pretraining domains, and objectives. We probed five frozen ViTs (RAD-DINO, DINOv2-B/14, DINOv3 ViT-7B, BiomedCLIP, MedSigLIP) and a frozen DINO-pretrained ResNet-50 architectural control across three large CXR cohorts (NIH-CXR14, MIMIC-CXR, Emory-CXR; aggregate pool n=492,724) and ChestX-Det10 (n=3,543","authors_text":"Alekhya Jilla, Bardia Khosravi, Frank Li, Judy Gichoya, Mohammadreza Chavoshi, Raajitha Muthyala, Saptarshi Purkayastha, Theo Dapamede, Zhenan Yin","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2026-06-10T03:06:32Z","title":"Frozen Foundation-Model Embeddings Discard Small-Lesion Signal in Chest Radiography: Implications for Pre-Deployment Evaluation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.11606","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":"sha256:7ffd00e91351780605ba70bfa1862b00320d0e8420658236881b2f88308c6b2b","target":"record","created_at":"2026-06-11T01:09:58Z","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":"b6851ff729fa2cae300970f64700747e99d7dda0e35eb5b2f9903a080b03b6e0","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2026-06-10T03:06:32Z","title_canon_sha256":"7c18f5f8a54faf75d516a0fa6f399297db47dd5213788eefae133275ce96cf08"},"schema_version":"1.0","source":{"id":"2606.11606","kind":"arxiv","version":1}},"canonical_sha256":"17f24baa40817412df997d48b4bb258db65249d7512773315aba13cafaa4dd3c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"17f24baa40817412df997d48b4bb258db65249d7512773315aba13cafaa4dd3c","first_computed_at":"2026-06-11T01:09:58.761585Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-11T01:09:58.761585Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pCj84TOhuqz4CkuE8B19uBKgOBwAbpZcmogtFjPniM33a9UdijELg6x8jVONbQZShC69fpqBFk2U1b3BftY7AQ==","signature_status":"signed_v1","signed_at":"2026-06-11T01:09:58.762623Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.11606","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7ffd00e91351780605ba70bfa1862b00320d0e8420658236881b2f88308c6b2b","sha256:de22244c5d5fbad25f85acce089ed4c8c72bb2f3480c6bf4039b51516af7ce82"],"state_sha256":"f41ee5ff1bc818f2ce75628f0f2971793b4c4339cdf9ba7a294c975ca2d0c24c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4cm1CFErHb0+jfO6DwuM8pPfNsfe4LV0a+PEcVfFtbWedUQswOtsVdmRorGD1xpSDZ3ZpB7ygXL54dmzk4QMCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-03T15:01:43.534512Z","bundle_sha256":"2587a0a5a4147cf619b08321958b39785771155743805d7f649674b08dfbcab7"}}