{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:L373HOYIXIPGZBOQYAU2B2PEAO","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":"b6573896e36fc63ce956feac6fe40a5c9891f54c82c916f26521e66d47bc0a4e","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CR","submitted_at":"2025-06-06T09:57:03Z","title_canon_sha256":"8aed8f02f8c95b121b452041e585db78e98f2c5c1312a3ebddd09a9d05563906"},"schema_version":"1.0","source":{"id":"2506.05932","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.05932","created_at":"2026-07-05T11:17:13Z"},{"alias_kind":"arxiv_version","alias_value":"2506.05932v1","created_at":"2026-07-05T11:17:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.05932","created_at":"2026-07-05T11:17:13Z"},{"alias_kind":"pith_short_12","alias_value":"L373HOYIXIPG","created_at":"2026-07-05T11:17:13Z"},{"alias_kind":"pith_short_16","alias_value":"L373HOYIXIPGZBOQ","created_at":"2026-07-05T11:17:13Z"},{"alias_kind":"pith_short_8","alias_value":"L373HOYI","created_at":"2026-07-05T11:17:13Z"}],"graph_snapshots":[{"event_id":"sha256:cc262a76a644bb57a7e528432bfd5fd685940c489b43e122580598f7a26d9556","target":"graph","created_at":"2026-07-05T11:17:13Z","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/2506.05932/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Reentrancy is a well-known source of smart contract bugs on Ethereum, leading e.g. to double-spending vulnerabilities in DeFi applications. But less is known about this problem in other blockchains, which can have significantly different execution models. Sharded blockchains in particular generally use an asynchronous messaging model that differs substantially from the synchronous and transactional model of Ethereum. We study the features of this model and its effect on reentrancy bugs on three examples: the Internet Computer (ICP) blockchain, NEAR Protocol, and MultiversX. We argue that this ","authors_text":"Lara Schmid, Ognjen Mari\\'c, Robin K\\\"unzler, Roman Kashitsyn","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CR","submitted_at":"2025-06-06T09:57:03Z","title":"Combating Reentrancy Bugs on Sharded Blockchains"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.05932","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":"sha256:730803c29d1110657fb67b138c70d99f261f1dd6201df9834745746ba5b63e8b","target":"record","created_at":"2026-07-05T11:17:13Z","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":"b6573896e36fc63ce956feac6fe40a5c9891f54c82c916f26521e66d47bc0a4e","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CR","submitted_at":"2025-06-06T09:57:03Z","title_canon_sha256":"8aed8f02f8c95b121b452041e585db78e98f2c5c1312a3ebddd09a9d05563906"},"schema_version":"1.0","source":{"id":"2506.05932","kind":"arxiv","version":1}},"canonical_sha256":"5effb3bb08ba1e6c85d0c029a0e9e4039b3f5357bb716d9cdaacfed5cbde59e7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5effb3bb08ba1e6c85d0c029a0e9e4039b3f5357bb716d9cdaacfed5cbde59e7","first_computed_at":"2026-07-05T11:17:13.042645Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:17:13.042645Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lgNnBZ8etnypYU9f3v8DbxQBl5Vb4hSARS3SkO6uFaSZ/JDu3vJCAh2su2P1ZCxxQzM82aEPHAk3Tb0tlJLiBw==","signature_status":"signed_v1","signed_at":"2026-07-05T11:17:13.043142Z","signed_message":"canonical_sha256_bytes"},"source_id":"2506.05932","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:730803c29d1110657fb67b138c70d99f261f1dd6201df9834745746ba5b63e8b","sha256:cc262a76a644bb57a7e528432bfd5fd685940c489b43e122580598f7a26d9556"],"state_sha256":"be57b84c001b2d4233a1fd573a246c91c0149b08f3b613be158a8693ab481724"}