{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:QTJXJP5C6ZY5PY7KEARLFRQCHS","short_pith_number":"pith:QTJXJP5C","canonical_record":{"source":{"id":"2607.19403","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2026-07-07T18:51:13Z","cross_cats_sorted":["cs.AI","cs.CR","cs.CY"],"title_canon_sha256":"b99a32b026444bd9eba4f50094173235cbe65ddd813861af75aec6ad08a8b281","abstract_canon_sha256":"0facf0c44bc5a1bec74cd72c4e543fe49f1e9cc5b5f641af31f12bfd7916cb08"},"schema_version":"1.0"},"canonical_sha256":"84d374bfa2f671d7e3ea2022b2c6023cb95871f2598ee80c05d1dd3f3dcbda38","source":{"kind":"arxiv","id":"2607.19403","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.19403","created_at":"2026-07-23T00:23:48Z"},{"alias_kind":"arxiv_version","alias_value":"2607.19403v1","created_at":"2026-07-23T00:23:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.19403","created_at":"2026-07-23T00:23:48Z"},{"alias_kind":"pith_short_12","alias_value":"QTJXJP5C6ZY5","created_at":"2026-07-23T00:23:48Z"},{"alias_kind":"pith_short_16","alias_value":"QTJXJP5C6ZY5PY7K","created_at":"2026-07-23T00:23:48Z"},{"alias_kind":"pith_short_8","alias_value":"QTJXJP5C","created_at":"2026-07-23T00:23:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:QTJXJP5C6ZY5PY7KEARLFRQCHS","target":"record","payload":{"canonical_record":{"source":{"id":"2607.19403","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2026-07-07T18:51:13Z","cross_cats_sorted":["cs.AI","cs.CR","cs.CY"],"title_canon_sha256":"b99a32b026444bd9eba4f50094173235cbe65ddd813861af75aec6ad08a8b281","abstract_canon_sha256":"0facf0c44bc5a1bec74cd72c4e543fe49f1e9cc5b5f641af31f12bfd7916cb08"},"schema_version":"1.0"},"canonical_sha256":"84d374bfa2f671d7e3ea2022b2c6023cb95871f2598ee80c05d1dd3f3dcbda38","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-23T00:23:48.293085Z","signature_b64":"8TwwxDR0+V/MHsmQyHlSaeRyNoKeDBAgHErVMWmZUCecfgQH2BQdYLsn3olkSVrpeVtsahYZ/GkEQ3cs5jKXAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"84d374bfa2f671d7e3ea2022b2c6023cb95871f2598ee80c05d1dd3f3dcbda38","last_reissued_at":"2026-07-23T00:23:48.292208Z","signature_status":"signed_v1","first_computed_at":"2026-07-23T00:23:48.292208Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.19403","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":"2026-07-23T00:23:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gHRNjfiPzaZJDkaBJW4KNWHASDfcHH2i8DbMR71/AkXMOPGqjJ/H3WSwr2Ec7Wxjbgi0Tv+VRDEHyi8Ljb7PDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T10:49:31.464611Z"},"content_sha256":"f793c5e962a85d3008dcb1f707bffe3a96e64480d2d560f2516266d814e363ab","schema_version":"1.0","event_id":"sha256:f793c5e962a85d3008dcb1f707bffe3a96e64480d2d560f2516266d814e363ab"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:QTJXJP5C6ZY5PY7KEARLFRQCHS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Recovering Clinical Utility Under Differential Privacy: Empirical Validation of Adaptive Federated Aggregation on Heterogeneous Cardiovascular Datasets","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.AI","cs.CR","cs.CY"],"primary_cat":"cs.LG","authors_text":"Laercio Alencar, Ricardo Almeida, Rodrigo Tertulino","submitted_at":"2026-07-07T18:51:13Z","abstract_excerpt":"Validating federated learning frameworks on real clinical data is an essential step between proof-of-concept demonstrations in controlled synthetic environments and deployment in real multicenter healthcare settings. A prior architectural study by the same authors (Tertulino and Alencar, 2026) demonstrated, on a synthetic six-feature benchmark, that server-side adaptive optimization acts as a temporal denoiser for Differential Privacy noise, answering an open challenge identified in the original pipeline work (Tertulino, 2025). That study used synthetically generated data and explicitly identi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.19403","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/2607.19403/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":"2026-07-23T00:23:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"445T3E0yT8vagyKiVdumWdtiDhFQlTjNb3/zpLTid8spWYvVF6epPCSMotOXtHn95Vl558YKuELJTi70n8vGCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T10:49:31.465111Z"},"content_sha256":"e2e83899195f8d23d1b1c2b1d31a02aa3a14c0bce8cf05d601391defbf59c211","schema_version":"1.0","event_id":"sha256:e2e83899195f8d23d1b1c2b1d31a02aa3a14c0bce8cf05d601391defbf59c211"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QTJXJP5C6ZY5PY7KEARLFRQCHS/bundle.json","state_url":"https://pith.science/pith/QTJXJP5C6ZY5PY7KEARLFRQCHS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QTJXJP5C6ZY5PY7KEARLFRQCHS/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":"2026-08-14T10:49:31Z","links":{"resolver":"https://pith.science/pith/QTJXJP5C6ZY5PY7KEARLFRQCHS","bundle":"https://pith.science/pith/QTJXJP5C6ZY5PY7KEARLFRQCHS/bundle.json","state":"https://pith.science/pith/QTJXJP5C6ZY5PY7KEARLFRQCHS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QTJXJP5C6ZY5PY7KEARLFRQCHS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:QTJXJP5C6ZY5PY7KEARLFRQCHS","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":"0facf0c44bc5a1bec74cd72c4e543fe49f1e9cc5b5f641af31f12bfd7916cb08","cross_cats_sorted":["cs.AI","cs.CR","cs.CY"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2026-07-07T18:51:13Z","title_canon_sha256":"b99a32b026444bd9eba4f50094173235cbe65ddd813861af75aec6ad08a8b281"},"schema_version":"1.0","source":{"id":"2607.19403","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.19403","created_at":"2026-07-23T00:23:48Z"},{"alias_kind":"arxiv_version","alias_value":"2607.19403v1","created_at":"2026-07-23T00:23:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.19403","created_at":"2026-07-23T00:23:48Z"},{"alias_kind":"pith_short_12","alias_value":"QTJXJP5C6ZY5","created_at":"2026-07-23T00:23:48Z"},{"alias_kind":"pith_short_16","alias_value":"QTJXJP5C6ZY5PY7K","created_at":"2026-07-23T00:23:48Z"},{"alias_kind":"pith_short_8","alias_value":"QTJXJP5C","created_at":"2026-07-23T00:23:48Z"}],"graph_snapshots":[{"event_id":"sha256:e2e83899195f8d23d1b1c2b1d31a02aa3a14c0bce8cf05d601391defbf59c211","target":"graph","created_at":"2026-07-23T00:23:48Z","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/2607.19403/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Validating federated learning frameworks on real clinical data is an essential step between proof-of-concept demonstrations in controlled synthetic environments and deployment in real multicenter healthcare settings. A prior architectural study by the same authors (Tertulino and Alencar, 2026) demonstrated, on a synthetic six-feature benchmark, that server-side adaptive optimization acts as a temporal denoiser for Differential Privacy noise, answering an open challenge identified in the original pipeline work (Tertulino, 2025). That study used synthetically generated data and explicitly identi","authors_text":"Laercio Alencar, Ricardo Almeida, Rodrigo Tertulino","cross_cats":["cs.AI","cs.CR","cs.CY"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2026-07-07T18:51:13Z","title":"Recovering Clinical Utility Under Differential Privacy: Empirical Validation of Adaptive Federated Aggregation on Heterogeneous Cardiovascular Datasets"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.19403","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:f793c5e962a85d3008dcb1f707bffe3a96e64480d2d560f2516266d814e363ab","target":"record","created_at":"2026-07-23T00:23:48Z","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":"0facf0c44bc5a1bec74cd72c4e543fe49f1e9cc5b5f641af31f12bfd7916cb08","cross_cats_sorted":["cs.AI","cs.CR","cs.CY"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2026-07-07T18:51:13Z","title_canon_sha256":"b99a32b026444bd9eba4f50094173235cbe65ddd813861af75aec6ad08a8b281"},"schema_version":"1.0","source":{"id":"2607.19403","kind":"arxiv","version":1}},"canonical_sha256":"84d374bfa2f671d7e3ea2022b2c6023cb95871f2598ee80c05d1dd3f3dcbda38","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"84d374bfa2f671d7e3ea2022b2c6023cb95871f2598ee80c05d1dd3f3dcbda38","first_computed_at":"2026-07-23T00:23:48.292208Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-23T00:23:48.292208Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8TwwxDR0+V/MHsmQyHlSaeRyNoKeDBAgHErVMWmZUCecfgQH2BQdYLsn3olkSVrpeVtsahYZ/GkEQ3cs5jKXAg==","signature_status":"signed_v1","signed_at":"2026-07-23T00:23:48.293085Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.19403","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f793c5e962a85d3008dcb1f707bffe3a96e64480d2d560f2516266d814e363ab","sha256:e2e83899195f8d23d1b1c2b1d31a02aa3a14c0bce8cf05d601391defbf59c211"],"state_sha256":"1703bedf2457768434187452c4527be12455fc7a3fe0206a75315a819f4e393e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4zyMJYJp4NE6tMAcloJ3/1RZNACghTy8SDISOfNnpnfXLy5EfgqU+pVMP9cM157LK86gpayiyrpEwEpkqT7MCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-14T10:49:31.469538Z","bundle_sha256":"7b83c899b80f3606b9a47852475f43189bc71e11620238fe91b58ae27507bf64"}}