{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:7R7V2CA5YMEAKYLSTBIFU2SNKI","short_pith_number":"pith:7R7V2CA5","schema_version":"1.0","canonical_sha256":"fc7f5d081dc30805617298505a6a4d52024738b1b1e6b06ec29794fb94dbd4a3","source":{"kind":"arxiv","id":"1901.00240","version":1},"attestation_state":"computed","paper":{"title":"Accountable Tracing Signatures from Lattices","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CR","authors_text":"Huaxiong Wang, Khoa Nguyen, San Ling, Yanhong Xu","submitted_at":"2019-01-02T02:29:12Z","abstract_excerpt":"Group signatures allow users of a group to sign messages anonymously in the name of the group, while incorporating a tracing mechanism to revoke anonymity and identify the signer of any message. Since its introduction by Chaum and van Heyst (EUROCRYPT 1991), numerous proposals have been put forward, yielding various improvements on security, efficiency and functionality. However, a drawback of traditional group signatures is that the opening authority is given too much power, i.e., he can indiscriminately revoke anonymity and there is no mechanism to keep him accountable. To overcome this prob"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1901.00240","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2019-01-02T02:29:12Z","cross_cats_sorted":[],"title_canon_sha256":"d8123e2102f04f2c694245b738a66b4af8cfc39df5539e77548995305177c7fc","abstract_canon_sha256":"cd69b04acac0ba0eebd87334f0e8a75cb89d874e6fff21655117ebbfa11e2938"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:57:06.616651Z","signature_b64":"Vo1Kn89nBRe3/F0nSI2Xf4CswbbHdo5PWOQgUzjwbjl/h5eZhTnfQ/BYIKMsvdgmneOfkdpYbpvJX6nOHwvCAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fc7f5d081dc30805617298505a6a4d52024738b1b1e6b06ec29794fb94dbd4a3","last_reissued_at":"2026-05-17T23:57:06.615834Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:57:06.615834Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Accountable Tracing Signatures from Lattices","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CR","authors_text":"Huaxiong Wang, Khoa Nguyen, San Ling, Yanhong Xu","submitted_at":"2019-01-02T02:29:12Z","abstract_excerpt":"Group signatures allow users of a group to sign messages anonymously in the name of the group, while incorporating a tracing mechanism to revoke anonymity and identify the signer of any message. Since its introduction by Chaum and van Heyst (EUROCRYPT 1991), numerous proposals have been put forward, yielding various improvements on security, efficiency and functionality. However, a drawback of traditional group signatures is that the opening authority is given too much power, i.e., he can indiscriminately revoke anonymity and there is no mechanism to keep him accountable. To overcome this prob"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.00240","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1901.00240","created_at":"2026-05-17T23:57:06.615959+00:00"},{"alias_kind":"arxiv_version","alias_value":"1901.00240v1","created_at":"2026-05-17T23:57:06.615959+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.00240","created_at":"2026-05-17T23:57:06.615959+00:00"},{"alias_kind":"pith_short_12","alias_value":"7R7V2CA5YMEA","created_at":"2026-05-18T12:33:12.712433+00:00"},{"alias_kind":"pith_short_16","alias_value":"7R7V2CA5YMEAKYLS","created_at":"2026-05-18T12:33:12.712433+00:00"},{"alias_kind":"pith_short_8","alias_value":"7R7V2CA5","created_at":"2026-05-18T12:33:12.712433+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/7R7V2CA5YMEAKYLSTBIFU2SNKI","json":"https://pith.science/pith/7R7V2CA5YMEAKYLSTBIFU2SNKI.json","graph_json":"https://pith.science/api/pith-number/7R7V2CA5YMEAKYLSTBIFU2SNKI/graph.json","events_json":"https://pith.science/api/pith-number/7R7V2CA5YMEAKYLSTBIFU2SNKI/events.json","paper":"https://pith.science/paper/7R7V2CA5"},"agent_actions":{"view_html":"https://pith.science/pith/7R7V2CA5YMEAKYLSTBIFU2SNKI","download_json":"https://pith.science/pith/7R7V2CA5YMEAKYLSTBIFU2SNKI.json","view_paper":"https://pith.science/paper/7R7V2CA5","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1901.00240&json=true","fetch_graph":"https://pith.science/api/pith-number/7R7V2CA5YMEAKYLSTBIFU2SNKI/graph.json","fetch_events":"https://pith.science/api/pith-number/7R7V2CA5YMEAKYLSTBIFU2SNKI/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/7R7V2CA5YMEAKYLSTBIFU2SNKI/action/timestamp_anchor","attest_storage":"https://pith.science/pith/7R7V2CA5YMEAKYLSTBIFU2SNKI/action/storage_attestation","attest_author":"https://pith.science/pith/7R7V2CA5YMEAKYLSTBIFU2SNKI/action/author_attestation","sign_citation":"https://pith.science/pith/7R7V2CA5YMEAKYLSTBIFU2SNKI/action/citation_signature","submit_replication":"https://pith.science/pith/7R7V2CA5YMEAKYLSTBIFU2SNKI/action/replication_record"}},"created_at":"2026-05-17T23:57:06.615959+00:00","updated_at":"2026-05-17T23:57:06.615959+00:00"}