{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:7XNDCDV5W7TLDOT7VGHRFEOKWB","short_pith_number":"pith:7XNDCDV5","canonical_record":{"source":{"id":"2607.13928","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2026-07-15T15:09:55Z","cross_cats_sorted":["cs.LG","stat.ML"],"title_canon_sha256":"5e405f6b6194d488cc72151cd80fe58504f04f00ba5e02e2795c8997630f9c3c","abstract_canon_sha256":"5bd50c04813f354fddcac2c44074646ff01ac9b43c5679039b95bd281d9d4e65"},"schema_version":"1.0"},"canonical_sha256":"fdda310ebdb7e6b1ba7fa98f1291cab0712f064ce97b18d6a9aaf5da7a5fdc9f","source":{"kind":"arxiv","id":"2607.13928","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.13928","created_at":"2026-07-16T01:23:14Z"},{"alias_kind":"arxiv_version","alias_value":"2607.13928v1","created_at":"2026-07-16T01:23:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.13928","created_at":"2026-07-16T01:23:14Z"},{"alias_kind":"pith_short_12","alias_value":"7XNDCDV5W7TL","created_at":"2026-07-16T01:23:14Z"},{"alias_kind":"pith_short_16","alias_value":"7XNDCDV5W7TLDOT7","created_at":"2026-07-16T01:23:14Z"},{"alias_kind":"pith_short_8","alias_value":"7XNDCDV5","created_at":"2026-07-16T01:23:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:7XNDCDV5W7TLDOT7VGHRFEOKWB","target":"record","payload":{"canonical_record":{"source":{"id":"2607.13928","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2026-07-15T15:09:55Z","cross_cats_sorted":["cs.LG","stat.ML"],"title_canon_sha256":"5e405f6b6194d488cc72151cd80fe58504f04f00ba5e02e2795c8997630f9c3c","abstract_canon_sha256":"5bd50c04813f354fddcac2c44074646ff01ac9b43c5679039b95bd281d9d4e65"},"schema_version":"1.0"},"canonical_sha256":"fdda310ebdb7e6b1ba7fa98f1291cab0712f064ce97b18d6a9aaf5da7a5fdc9f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-16T01:23:14.233309Z","signature_b64":"S+RrXQmnQpdn3gxnMegiP9i6TbSBewd2lnwZa/KvNy+rMKxuKSSgd6IaMvxW3BP9LvehXoJy/Riw0b4kI8rBCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fdda310ebdb7e6b1ba7fa98f1291cab0712f064ce97b18d6a9aaf5da7a5fdc9f","last_reissued_at":"2026-07-16T01:23:14.232486Z","signature_status":"signed_v1","first_computed_at":"2026-07-16T01:23:14.232486Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.13928","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":"2026-07-16T01:23:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bf5FpV3PCaE0U8yYPmBX9X8uLhKx//9P8eLV/QnMMs+g0Yd/m+mtToQt8LsBrOsc8OCKsZ8KVZKcHh+5O7EOCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T21:43:23.668405Z"},"content_sha256":"5a77f80b47acf8d97bc7e9f8673df8dbb7eb50b5a293415da61680558f9935bf","schema_version":"1.0","event_id":"sha256:5a77f80b47acf8d97bc7e9f8673df8dbb7eb50b5a293415da61680558f9935bf"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:7XNDCDV5W7TLDOT7VGHRFEOKWB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Plausible Deniability Guarantees for Whistleblowers","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.LG","stat.ML"],"primary_cat":"cs.CR","authors_text":"Leo Richter, Matt J. Kusner","submitted_at":"2026-07-15T15:09:55Z","abstract_excerpt":"Whistleblowers are a key safeguard against organizational wrongdoing, but the threat of retaliation deters reporting. Existing whistleblower-protection proposals lack formal privacy guarantees, and existing differential privacy mechanisms do not directly target the natural threat model -- one in which the audited organization itself observes auditor selection decisions and uses them to identify reporters. We formalize protection against a strong-adversary threat model as per-report $(0, \\delta)$-differential privacy on the transcript of audit selections. Within this framework we prove that a n"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.13928","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/2607.13928/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":"2026-07-16T01:23:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"V44+5g+SFpGIxIbiPFVyVUq+nzS6/G4+qeJTsCHjLVtgQ6r2K0Z+Zp2bmA2ONSshCw4135nGTS94Rv+DD/4LBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T21:43:23.668927Z"},"content_sha256":"a177e502fe058064022d6f22da9c3558d097f41be4de59de68d1fad95dd47610","schema_version":"1.0","event_id":"sha256:a177e502fe058064022d6f22da9c3558d097f41be4de59de68d1fad95dd47610"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7XNDCDV5W7TLDOT7VGHRFEOKWB/bundle.json","state_url":"https://pith.science/pith/7XNDCDV5W7TLDOT7VGHRFEOKWB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7XNDCDV5W7TLDOT7VGHRFEOKWB/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":"2026-08-05T21:43:23Z","links":{"resolver":"https://pith.science/pith/7XNDCDV5W7TLDOT7VGHRFEOKWB","bundle":"https://pith.science/pith/7XNDCDV5W7TLDOT7VGHRFEOKWB/bundle.json","state":"https://pith.science/pith/7XNDCDV5W7TLDOT7VGHRFEOKWB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7XNDCDV5W7TLDOT7VGHRFEOKWB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:7XNDCDV5W7TLDOT7VGHRFEOKWB","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":"5bd50c04813f354fddcac2c44074646ff01ac9b43c5679039b95bd281d9d4e65","cross_cats_sorted":["cs.LG","stat.ML"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2026-07-15T15:09:55Z","title_canon_sha256":"5e405f6b6194d488cc72151cd80fe58504f04f00ba5e02e2795c8997630f9c3c"},"schema_version":"1.0","source":{"id":"2607.13928","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.13928","created_at":"2026-07-16T01:23:14Z"},{"alias_kind":"arxiv_version","alias_value":"2607.13928v1","created_at":"2026-07-16T01:23:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.13928","created_at":"2026-07-16T01:23:14Z"},{"alias_kind":"pith_short_12","alias_value":"7XNDCDV5W7TL","created_at":"2026-07-16T01:23:14Z"},{"alias_kind":"pith_short_16","alias_value":"7XNDCDV5W7TLDOT7","created_at":"2026-07-16T01:23:14Z"},{"alias_kind":"pith_short_8","alias_value":"7XNDCDV5","created_at":"2026-07-16T01:23:14Z"}],"graph_snapshots":[{"event_id":"sha256:a177e502fe058064022d6f22da9c3558d097f41be4de59de68d1fad95dd47610","target":"graph","created_at":"2026-07-16T01:23:14Z","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/2607.13928/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Whistleblowers are a key safeguard against organizational wrongdoing, but the threat of retaliation deters reporting. Existing whistleblower-protection proposals lack formal privacy guarantees, and existing differential privacy mechanisms do not directly target the natural threat model -- one in which the audited organization itself observes auditor selection decisions and uses them to identify reporters. We formalize protection against a strong-adversary threat model as per-report $(0, \\delta)$-differential privacy on the transcript of audit selections. Within this framework we prove that a n","authors_text":"Leo Richter, Matt J. Kusner","cross_cats":["cs.LG","stat.ML"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2026-07-15T15:09:55Z","title":"Plausible Deniability Guarantees for Whistleblowers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.13928","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":"sha256:5a77f80b47acf8d97bc7e9f8673df8dbb7eb50b5a293415da61680558f9935bf","target":"record","created_at":"2026-07-16T01:23:14Z","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":"5bd50c04813f354fddcac2c44074646ff01ac9b43c5679039b95bd281d9d4e65","cross_cats_sorted":["cs.LG","stat.ML"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2026-07-15T15:09:55Z","title_canon_sha256":"5e405f6b6194d488cc72151cd80fe58504f04f00ba5e02e2795c8997630f9c3c"},"schema_version":"1.0","source":{"id":"2607.13928","kind":"arxiv","version":1}},"canonical_sha256":"fdda310ebdb7e6b1ba7fa98f1291cab0712f064ce97b18d6a9aaf5da7a5fdc9f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fdda310ebdb7e6b1ba7fa98f1291cab0712f064ce97b18d6a9aaf5da7a5fdc9f","first_computed_at":"2026-07-16T01:23:14.232486Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-16T01:23:14.232486Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"S+RrXQmnQpdn3gxnMegiP9i6TbSBewd2lnwZa/KvNy+rMKxuKSSgd6IaMvxW3BP9LvehXoJy/Riw0b4kI8rBCg==","signature_status":"signed_v1","signed_at":"2026-07-16T01:23:14.233309Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.13928","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5a77f80b47acf8d97bc7e9f8673df8dbb7eb50b5a293415da61680558f9935bf","sha256:a177e502fe058064022d6f22da9c3558d097f41be4de59de68d1fad95dd47610"],"state_sha256":"935bd219f089b9606046323eb2f33751e3367b21261b52569de29a3914fb8e2b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jaBREt9212hQE8weufobfn5R4KYO0/rBvc9qnPumUVtOiD4mHmoAGgWAx2OvKZYmtzevHdizEIitMU9HwArUCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T21:43:23.673071Z","bundle_sha256":"99d3d7e888c352c4bed1923f47e07ff08e074219aae378609da75aa817092ec3"}}