{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:Y7ETMHUQXHSA6RXDE2UM3TTQZL","short_pith_number":"pith:Y7ETMHUQ","canonical_record":{"source":{"id":"1111.1644","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2011-11-07T17:02:04Z","cross_cats_sorted":[],"title_canon_sha256":"eca9d19b12cdb07b46054113a95f18b9f72ef5b611d9de39d7187c05d31a8bad","abstract_canon_sha256":"14b260a735cffe05bb14bc182ddbebb28c1c2c89726292cf8b407eaddf8844e5"},"schema_version":"1.0"},"canonical_sha256":"c7c9361e90b9e40f46e326a8cdce70cac76296d604dc043f69b9123d4ec79b40","source":{"kind":"arxiv","id":"1111.1644","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1111.1644","created_at":"2026-05-18T04:09:25Z"},{"alias_kind":"arxiv_version","alias_value":"1111.1644v1","created_at":"2026-05-18T04:09:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.1644","created_at":"2026-05-18T04:09:25Z"},{"alias_kind":"pith_short_12","alias_value":"Y7ETMHUQXHSA","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_16","alias_value":"Y7ETMHUQXHSA6RXD","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_8","alias_value":"Y7ETMHUQ","created_at":"2026-05-18T12:26:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:Y7ETMHUQXHSA6RXDE2UM3TTQZL","target":"record","payload":{"canonical_record":{"source":{"id":"1111.1644","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2011-11-07T17:02:04Z","cross_cats_sorted":[],"title_canon_sha256":"eca9d19b12cdb07b46054113a95f18b9f72ef5b611d9de39d7187c05d31a8bad","abstract_canon_sha256":"14b260a735cffe05bb14bc182ddbebb28c1c2c89726292cf8b407eaddf8844e5"},"schema_version":"1.0"},"canonical_sha256":"c7c9361e90b9e40f46e326a8cdce70cac76296d604dc043f69b9123d4ec79b40","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:09:25.625004Z","signature_b64":"ldthgFBENYzWxabqJ+zQbZdqcoaaYGXiFbvL8PMJcBNufUbWMjE/zCSM6HOsHqhW8tE8PEnvg3n9kMsDRts8AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c7c9361e90b9e40f46e326a8cdce70cac76296d604dc043f69b9123d4ec79b40","last_reissued_at":"2026-05-18T04:09:25.624358Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:09:25.624358Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1111.1644","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":"2026-05-18T04:09:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"y0kZ0ipJMZZ8mbE5Ty2x2WzBx/yeiLeX+ndlFQvNaBqcGxhTa9se2zrHHziIDcED3eZ4x08MKCln5+A9WVmnAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T03:02:26.334858Z"},"content_sha256":"3d6374be35c71617893e86f51383c0191bc07099230bdb466a60c36ad839e7da","schema_version":"1.0","event_id":"sha256:3d6374be35c71617893e86f51383c0191bc07099230bdb466a60c36ad839e7da"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:Y7ETMHUQXHSA6RXDE2UM3TTQZL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A new zero-knowledge code based identification scheme with reduced communication","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CR","authors_text":"Carlos Aguilar, Julien Schrek, Philippe Gaborit","submitted_at":"2011-11-07T17:02:04Z","abstract_excerpt":"In this paper we present a new 5-pass identification scheme with asymptotic cheating probability 1/2 based on the syndrome decoding problem. Our protocol is related to the Stern identification scheme but has a reduced communication cost compared to previous code-based zero-knowledge schemes, moreover our scheme permits to obtain a very low size of public key and secret key. The contribution of this paper is twofold, first we propose a variation on the Stern authentication scheme which permits to decrease asymptotically the cheating probability to 1/2 rather than 2/3 (and very close to 1/2 in p"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.1644","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":""},"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":"2026-05-18T04:09:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2HL2GKj18SkEhRKMcD1/9r+5ijt6sVTSx9U2TuUu+Ljj7A1SKlSJfpW9DbpmVZ2axsk1WX5OXXU/a2GmlRURAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T03:02:26.335200Z"},"content_sha256":"afe15fdfd80676680879f6b99834c9c31fef73f7b6b1a59795ee43b7b87d277b","schema_version":"1.0","event_id":"sha256:afe15fdfd80676680879f6b99834c9c31fef73f7b6b1a59795ee43b7b87d277b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Y7ETMHUQXHSA6RXDE2UM3TTQZL/bundle.json","state_url":"https://pith.science/pith/Y7ETMHUQXHSA6RXDE2UM3TTQZL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Y7ETMHUQXHSA6RXDE2UM3TTQZL/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":"2026-06-02T03:02:26Z","links":{"resolver":"https://pith.science/pith/Y7ETMHUQXHSA6RXDE2UM3TTQZL","bundle":"https://pith.science/pith/Y7ETMHUQXHSA6RXDE2UM3TTQZL/bundle.json","state":"https://pith.science/pith/Y7ETMHUQXHSA6RXDE2UM3TTQZL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Y7ETMHUQXHSA6RXDE2UM3TTQZL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:Y7ETMHUQXHSA6RXDE2UM3TTQZL","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":"14b260a735cffe05bb14bc182ddbebb28c1c2c89726292cf8b407eaddf8844e5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2011-11-07T17:02:04Z","title_canon_sha256":"eca9d19b12cdb07b46054113a95f18b9f72ef5b611d9de39d7187c05d31a8bad"},"schema_version":"1.0","source":{"id":"1111.1644","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1111.1644","created_at":"2026-05-18T04:09:25Z"},{"alias_kind":"arxiv_version","alias_value":"1111.1644v1","created_at":"2026-05-18T04:09:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.1644","created_at":"2026-05-18T04:09:25Z"},{"alias_kind":"pith_short_12","alias_value":"Y7ETMHUQXHSA","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_16","alias_value":"Y7ETMHUQXHSA6RXD","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_8","alias_value":"Y7ETMHUQ","created_at":"2026-05-18T12:26:47Z"}],"graph_snapshots":[{"event_id":"sha256:afe15fdfd80676680879f6b99834c9c31fef73f7b6b1a59795ee43b7b87d277b","target":"graph","created_at":"2026-05-18T04:09:25Z","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"},"paper":{"abstract_excerpt":"In this paper we present a new 5-pass identification scheme with asymptotic cheating probability 1/2 based on the syndrome decoding problem. Our protocol is related to the Stern identification scheme but has a reduced communication cost compared to previous code-based zero-knowledge schemes, moreover our scheme permits to obtain a very low size of public key and secret key. The contribution of this paper is twofold, first we propose a variation on the Stern authentication scheme which permits to decrease asymptotically the cheating probability to 1/2 rather than 2/3 (and very close to 1/2 in p","authors_text":"Carlos Aguilar, Julien Schrek, Philippe Gaborit","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2011-11-07T17:02:04Z","title":"A new zero-knowledge code based identification scheme with reduced communication"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.1644","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":"sha256:3d6374be35c71617893e86f51383c0191bc07099230bdb466a60c36ad839e7da","target":"record","created_at":"2026-05-18T04:09:25Z","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":"14b260a735cffe05bb14bc182ddbebb28c1c2c89726292cf8b407eaddf8844e5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2011-11-07T17:02:04Z","title_canon_sha256":"eca9d19b12cdb07b46054113a95f18b9f72ef5b611d9de39d7187c05d31a8bad"},"schema_version":"1.0","source":{"id":"1111.1644","kind":"arxiv","version":1}},"canonical_sha256":"c7c9361e90b9e40f46e326a8cdce70cac76296d604dc043f69b9123d4ec79b40","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c7c9361e90b9e40f46e326a8cdce70cac76296d604dc043f69b9123d4ec79b40","first_computed_at":"2026-05-18T04:09:25.624358Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:09:25.624358Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ldthgFBENYzWxabqJ+zQbZdqcoaaYGXiFbvL8PMJcBNufUbWMjE/zCSM6HOsHqhW8tE8PEnvg3n9kMsDRts8AQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:09:25.625004Z","signed_message":"canonical_sha256_bytes"},"source_id":"1111.1644","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3d6374be35c71617893e86f51383c0191bc07099230bdb466a60c36ad839e7da","sha256:afe15fdfd80676680879f6b99834c9c31fef73f7b6b1a59795ee43b7b87d277b"],"state_sha256":"0b22381fb048ff5741a41055a603e174b7ef9729a0854cd00846d6c07e02ed7a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JSA77OADsj7S92IrdnvR1WEgE3W9tPL0Kvz3H2qEdkhD9ibwjGS0ZKGBiK/IMA/oCQ7fgUQgheU1+VaTfYZfCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T03:02:26.337260Z","bundle_sha256":"611f7bcb52a81c355a858c637ec11ccd65e99d8c6c9f96b053023e0d8f6b8903"}}