{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:HGBCTGDJLHZG55N4QMZBXOKRUB","short_pith_number":"pith:HGBCTGDJ","canonical_record":{"source":{"id":"1812.02009","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2018-12-05T14:09:25Z","cross_cats_sorted":[],"title_canon_sha256":"5fe34b8c46d49577a4348999ee33688ab4a60eb4fb7b5b20c56b0870462b9af8","abstract_canon_sha256":"4d787656ba7420ae0595f522e00a0e3987790dc61dea8219e49841a2d0a1b03e"},"schema_version":"1.0"},"canonical_sha256":"398229986959f26ef5bc83321bb951a06c8ae744f72e4185f2d7e2223ca167c4","source":{"kind":"arxiv","id":"1812.02009","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.02009","created_at":"2026-07-05T01:20:45Z"},{"alias_kind":"arxiv_version","alias_value":"1812.02009v2","created_at":"2026-07-05T01:20:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.02009","created_at":"2026-07-05T01:20:45Z"},{"alias_kind":"pith_short_12","alias_value":"HGBCTGDJLHZG","created_at":"2026-07-05T01:20:45Z"},{"alias_kind":"pith_short_16","alias_value":"HGBCTGDJLHZG55N4","created_at":"2026-07-05T01:20:45Z"},{"alias_kind":"pith_short_8","alias_value":"HGBCTGDJ","created_at":"2026-07-05T01:20:45Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:HGBCTGDJLHZG55N4QMZBXOKRUB","target":"record","payload":{"canonical_record":{"source":{"id":"1812.02009","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2018-12-05T14:09:25Z","cross_cats_sorted":[],"title_canon_sha256":"5fe34b8c46d49577a4348999ee33688ab4a60eb4fb7b5b20c56b0870462b9af8","abstract_canon_sha256":"4d787656ba7420ae0595f522e00a0e3987790dc61dea8219e49841a2d0a1b03e"},"schema_version":"1.0"},"canonical_sha256":"398229986959f26ef5bc83321bb951a06c8ae744f72e4185f2d7e2223ca167c4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:20:45.063922Z","signature_b64":"fFsfuxCwBOcK3Tv7gh8Z7NC0KjmvY4JU2kBMLuEDylb6RKtTYiID3ZJvfLyEn7ubCfMuazIrMjfBgglz0JTIDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"398229986959f26ef5bc83321bb951a06c8ae744f72e4185f2d7e2223ca167c4","last_reissued_at":"2026-07-05T01:20:45.063516Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:20:45.063516Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1812.02009","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T01:20:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IErmCZjbRcHYxaaREcFsDJdBMfJ5BIRAoflRkIFldI6pM1GPTvMVlr/NyoFKo2VFLHTsZmsJ3LBA+PmBFB12AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T17:43:14.571319Z"},"content_sha256":"ff7cf23a8225409fa38501c5ca1434ba128222008a53e5c36cd7cf5f21cc9882","schema_version":"1.0","event_id":"sha256:ff7cf23a8225409fa38501c5ca1434ba128222008a53e5c36cd7cf5f21cc9882"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:HGBCTGDJLHZG55N4QMZBXOKRUB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Research on the Security of Blockchain Data: A Survey","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CR","authors_text":"Baokun Zheng, Feng Gao, Hongyu Li, Keke Gai, Kexin Shi, Liehuang Zhu, Meng Shen, Shui Yu","submitted_at":"2018-12-05T14:09:25Z","abstract_excerpt":"With the more and more extensive application of blockchain, blockchain security has been widely concerned by the society and deeply studied by scholars. Moreover, the security of blockchain data directly affects the security of various applications of blockchain. In this survey, we perform a comprehensive classification and summary of the security of blockchain data. First, we present classification of blockchain data attacks. Subsequently, we present the attacks and defenses of blockchain data in terms of privacy, availability, integrity and controllability. Data privacy attacks present data "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.02009","kind":"arxiv","version":2},"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/1812.02009/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":"2026-07-05T01:20:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"y7FVwh7ykXaNALBjV+jGMl5jOImeom8Pb3+y6y2YcHY9sGe9kf3fiD0HQsnaTv33El0c5SYz5k5S+2JdXKcTBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T17:43:14.572230Z"},"content_sha256":"190aa6c0727a13496f7b23478d0a663db4c864f0ec255643e713ea7e8cbefcb9","schema_version":"1.0","event_id":"sha256:190aa6c0727a13496f7b23478d0a663db4c864f0ec255643e713ea7e8cbefcb9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HGBCTGDJLHZG55N4QMZBXOKRUB/bundle.json","state_url":"https://pith.science/pith/HGBCTGDJLHZG55N4QMZBXOKRUB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HGBCTGDJLHZG55N4QMZBXOKRUB/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":"2026-08-03T17:43:14Z","links":{"resolver":"https://pith.science/pith/HGBCTGDJLHZG55N4QMZBXOKRUB","bundle":"https://pith.science/pith/HGBCTGDJLHZG55N4QMZBXOKRUB/bundle.json","state":"https://pith.science/pith/HGBCTGDJLHZG55N4QMZBXOKRUB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HGBCTGDJLHZG55N4QMZBXOKRUB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:HGBCTGDJLHZG55N4QMZBXOKRUB","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":"4d787656ba7420ae0595f522e00a0e3987790dc61dea8219e49841a2d0a1b03e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2018-12-05T14:09:25Z","title_canon_sha256":"5fe34b8c46d49577a4348999ee33688ab4a60eb4fb7b5b20c56b0870462b9af8"},"schema_version":"1.0","source":{"id":"1812.02009","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.02009","created_at":"2026-07-05T01:20:45Z"},{"alias_kind":"arxiv_version","alias_value":"1812.02009v2","created_at":"2026-07-05T01:20:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.02009","created_at":"2026-07-05T01:20:45Z"},{"alias_kind":"pith_short_12","alias_value":"HGBCTGDJLHZG","created_at":"2026-07-05T01:20:45Z"},{"alias_kind":"pith_short_16","alias_value":"HGBCTGDJLHZG55N4","created_at":"2026-07-05T01:20:45Z"},{"alias_kind":"pith_short_8","alias_value":"HGBCTGDJ","created_at":"2026-07-05T01:20:45Z"}],"graph_snapshots":[{"event_id":"sha256:190aa6c0727a13496f7b23478d0a663db4c864f0ec255643e713ea7e8cbefcb9","target":"graph","created_at":"2026-07-05T01:20:45Z","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/1812.02009/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"With the more and more extensive application of blockchain, blockchain security has been widely concerned by the society and deeply studied by scholars. Moreover, the security of blockchain data directly affects the security of various applications of blockchain. In this survey, we perform a comprehensive classification and summary of the security of blockchain data. First, we present classification of blockchain data attacks. Subsequently, we present the attacks and defenses of blockchain data in terms of privacy, availability, integrity and controllability. Data privacy attacks present data ","authors_text":"Baokun Zheng, Feng Gao, Hongyu Li, Keke Gai, Kexin Shi, Liehuang Zhu, Meng Shen, Shui Yu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2018-12-05T14:09:25Z","title":"Research on the Security of Blockchain Data: A Survey"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.02009","kind":"arxiv","version":2},"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:ff7cf23a8225409fa38501c5ca1434ba128222008a53e5c36cd7cf5f21cc9882","target":"record","created_at":"2026-07-05T01:20:45Z","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":"4d787656ba7420ae0595f522e00a0e3987790dc61dea8219e49841a2d0a1b03e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2018-12-05T14:09:25Z","title_canon_sha256":"5fe34b8c46d49577a4348999ee33688ab4a60eb4fb7b5b20c56b0870462b9af8"},"schema_version":"1.0","source":{"id":"1812.02009","kind":"arxiv","version":2}},"canonical_sha256":"398229986959f26ef5bc83321bb951a06c8ae744f72e4185f2d7e2223ca167c4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"398229986959f26ef5bc83321bb951a06c8ae744f72e4185f2d7e2223ca167c4","first_computed_at":"2026-07-05T01:20:45.063516Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:20:45.063516Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fFsfuxCwBOcK3Tv7gh8Z7NC0KjmvY4JU2kBMLuEDylb6RKtTYiID3ZJvfLyEn7ubCfMuazIrMjfBgglz0JTIDg==","signature_status":"signed_v1","signed_at":"2026-07-05T01:20:45.063922Z","signed_message":"canonical_sha256_bytes"},"source_id":"1812.02009","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ff7cf23a8225409fa38501c5ca1434ba128222008a53e5c36cd7cf5f21cc9882","sha256:190aa6c0727a13496f7b23478d0a663db4c864f0ec255643e713ea7e8cbefcb9"],"state_sha256":"e27485132f954d804066e70d4fd2df6c2c817a4e83cda7aa71d129f072affc5b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LTHYj4SemXb/quOjLGkMEl24iIVI9NblvMVkT4BXEYU11uPN/Y3Utewj6xvH+TPAXWI1pCOzXpz6LpgXquD2Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T17:43:14.577745Z","bundle_sha256":"d9d935af9aaf26f5785d47a6ba22409cf91c81fcc095c7c0e01e55802dbc7251"}}