{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:XPAOZX5LW3QJH5XGJF75HGKFBC","short_pith_number":"pith:XPAOZX5L","canonical_record":{"source":{"id":"2405.04021","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2024-05-07T05:48:02Z","cross_cats_sorted":[],"title_canon_sha256":"47791b3280d045efb194dcfe33f9eb1a017820634debe4f86c36593c6e4e9178","abstract_canon_sha256":"8b2eeba35f7bff2163f19d4f88b7618bd3372682545d8d7f119b34abcd7176f3"},"schema_version":"1.0"},"canonical_sha256":"bbc0ecdfabb6e093f6e6497fd3994508bd8efbad4757e2e3e4dace3269208607","source":{"kind":"arxiv","id":"2405.04021","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2405.04021","created_at":"2026-07-05T08:16:30Z"},{"alias_kind":"arxiv_version","alias_value":"2405.04021v1","created_at":"2026-07-05T08:16:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2405.04021","created_at":"2026-07-05T08:16:30Z"},{"alias_kind":"pith_short_12","alias_value":"XPAOZX5LW3QJ","created_at":"2026-07-05T08:16:30Z"},{"alias_kind":"pith_short_16","alias_value":"XPAOZX5LW3QJH5XG","created_at":"2026-07-05T08:16:30Z"},{"alias_kind":"pith_short_8","alias_value":"XPAOZX5L","created_at":"2026-07-05T08:16:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:XPAOZX5LW3QJH5XGJF75HGKFBC","target":"record","payload":{"canonical_record":{"source":{"id":"2405.04021","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2024-05-07T05:48:02Z","cross_cats_sorted":[],"title_canon_sha256":"47791b3280d045efb194dcfe33f9eb1a017820634debe4f86c36593c6e4e9178","abstract_canon_sha256":"8b2eeba35f7bff2163f19d4f88b7618bd3372682545d8d7f119b34abcd7176f3"},"schema_version":"1.0"},"canonical_sha256":"bbc0ecdfabb6e093f6e6497fd3994508bd8efbad4757e2e3e4dace3269208607","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:16:30.626771Z","signature_b64":"nPNgyiKe32yHeXHovziTqmvAd/Rz8ggq3lz/3PTNZ3EzbNwFEswOQzVWgeRlEa0v3PyqAHusyrAwZNLiXTWHCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bbc0ecdfabb6e093f6e6497fd3994508bd8efbad4757e2e3e4dace3269208607","last_reissued_at":"2026-07-05T08:16:30.626233Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:16:30.626233Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2405.04021","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":"2026-07-05T08:16:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fXZonb88/FX1DDvxcMbo+TAbFVePNVdF5ELNrGsn5dJNu/p8Kk/DliISRkqciz8bhxgk7xpQ/SX1ae9EP60WAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T16:16:51.750024Z"},"content_sha256":"088263b85835ae048cd343064cc176d8cb268bfd7a93c9931fb254f9a715b243","schema_version":"1.0","event_id":"sha256:088263b85835ae048cd343064cc176d8cb268bfd7a93c9931fb254f9a715b243"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:XPAOZX5LW3QJH5XGJF75HGKFBC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Robust and Reusable Fuzzy Extractors for Low-entropy Rate Randomness Sources","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CR","authors_text":"Reihaneh Safavi-Naini, Shaoquan Jiang, Somnath Panja","submitted_at":"2024-05-07T05:48:02Z","abstract_excerpt":"Fuzzy extractors (FE) are cryptographic primitives that extract reliable cryptographic key from noisy real world random sources such as biometric sources. The FE generation algorithm takes a source sample, extracts a key and generates some helper data that will be used by the reproduction algorithm to recover the key. Reusability of FE guarantees that security holds when FE is used multiple times with the same source, and robustness of FE requires tampering with the helper data be detectable.\n  In this paper, we consider information theoretic FEs, define a strong notion of reusability, and pro"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2405.04021","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/2405.04021/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":"2026-07-05T08:16:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z8ErC8koKjedglK15nCZ0Sg5wadOhsufl3Dq5tlLrlaIcLwmjhwUIxGG7FlYXs7OZZdNd/Eh6+zh09J42NPTAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T16:16:51.751187Z"},"content_sha256":"ef719b556a50a21c06dcc585411847aced3522c19c7d652b9be6bcd340d7e48d","schema_version":"1.0","event_id":"sha256:ef719b556a50a21c06dcc585411847aced3522c19c7d652b9be6bcd340d7e48d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XPAOZX5LW3QJH5XGJF75HGKFBC/bundle.json","state_url":"https://pith.science/pith/XPAOZX5LW3QJH5XGJF75HGKFBC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XPAOZX5LW3QJH5XGJF75HGKFBC/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":"2026-08-03T16:16:51Z","links":{"resolver":"https://pith.science/pith/XPAOZX5LW3QJH5XGJF75HGKFBC","bundle":"https://pith.science/pith/XPAOZX5LW3QJH5XGJF75HGKFBC/bundle.json","state":"https://pith.science/pith/XPAOZX5LW3QJH5XGJF75HGKFBC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XPAOZX5LW3QJH5XGJF75HGKFBC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:XPAOZX5LW3QJH5XGJF75HGKFBC","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":"8b2eeba35f7bff2163f19d4f88b7618bd3372682545d8d7f119b34abcd7176f3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2024-05-07T05:48:02Z","title_canon_sha256":"47791b3280d045efb194dcfe33f9eb1a017820634debe4f86c36593c6e4e9178"},"schema_version":"1.0","source":{"id":"2405.04021","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2405.04021","created_at":"2026-07-05T08:16:30Z"},{"alias_kind":"arxiv_version","alias_value":"2405.04021v1","created_at":"2026-07-05T08:16:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2405.04021","created_at":"2026-07-05T08:16:30Z"},{"alias_kind":"pith_short_12","alias_value":"XPAOZX5LW3QJ","created_at":"2026-07-05T08:16:30Z"},{"alias_kind":"pith_short_16","alias_value":"XPAOZX5LW3QJH5XG","created_at":"2026-07-05T08:16:30Z"},{"alias_kind":"pith_short_8","alias_value":"XPAOZX5L","created_at":"2026-07-05T08:16:30Z"}],"graph_snapshots":[{"event_id":"sha256:ef719b556a50a21c06dcc585411847aced3522c19c7d652b9be6bcd340d7e48d","target":"graph","created_at":"2026-07-05T08:16:30Z","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/2405.04021/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Fuzzy extractors (FE) are cryptographic primitives that extract reliable cryptographic key from noisy real world random sources such as biometric sources. The FE generation algorithm takes a source sample, extracts a key and generates some helper data that will be used by the reproduction algorithm to recover the key. Reusability of FE guarantees that security holds when FE is used multiple times with the same source, and robustness of FE requires tampering with the helper data be detectable.\n  In this paper, we consider information theoretic FEs, define a strong notion of reusability, and pro","authors_text":"Reihaneh Safavi-Naini, Shaoquan Jiang, Somnath Panja","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2024-05-07T05:48:02Z","title":"Robust and Reusable Fuzzy Extractors for Low-entropy Rate Randomness Sources"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2405.04021","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":"sha256:088263b85835ae048cd343064cc176d8cb268bfd7a93c9931fb254f9a715b243","target":"record","created_at":"2026-07-05T08:16:30Z","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":"8b2eeba35f7bff2163f19d4f88b7618bd3372682545d8d7f119b34abcd7176f3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2024-05-07T05:48:02Z","title_canon_sha256":"47791b3280d045efb194dcfe33f9eb1a017820634debe4f86c36593c6e4e9178"},"schema_version":"1.0","source":{"id":"2405.04021","kind":"arxiv","version":1}},"canonical_sha256":"bbc0ecdfabb6e093f6e6497fd3994508bd8efbad4757e2e3e4dace3269208607","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bbc0ecdfabb6e093f6e6497fd3994508bd8efbad4757e2e3e4dace3269208607","first_computed_at":"2026-07-05T08:16:30.626233Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:16:30.626233Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nPNgyiKe32yHeXHovziTqmvAd/Rz8ggq3lz/3PTNZ3EzbNwFEswOQzVWgeRlEa0v3PyqAHusyrAwZNLiXTWHCg==","signature_status":"signed_v1","signed_at":"2026-07-05T08:16:30.626771Z","signed_message":"canonical_sha256_bytes"},"source_id":"2405.04021","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:088263b85835ae048cd343064cc176d8cb268bfd7a93c9931fb254f9a715b243","sha256:ef719b556a50a21c06dcc585411847aced3522c19c7d652b9be6bcd340d7e48d"],"state_sha256":"a3f689c52b7298beb3dd1e7930c1f336fea743cee644975c76b853a39d1c258b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"s1Y9o1oM30QFJa60z0zvOU9w+NIH6630k8dhRZK5Adz8kAArdvADnCGdONG2jJWupIk83JDnZCtKZ+u35W93Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T16:16:51.757913Z","bundle_sha256":"54bf454028bce7e4d02d5476eed926989b470976868c122754b9ed3bd75083ed"}}