{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:YG42GT35VE2WKPB64YY6LL4DMW","short_pith_number":"pith:YG42GT35","schema_version":"1.0","canonical_sha256":"c1b9a34f7da935653c3ee631e5af8365a4b19e53b8709d8d63a93befc7d880b7","source":{"kind":"arxiv","id":"2504.14965","version":2},"attestation_state":"computed","paper":{"title":"A Security Framework for General Blockchain Layer 2 Protocols","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CR","authors_text":"Matteo Maffei, Yuheng Wang, Zeta Avarikioti","submitted_at":"2025-04-21T08:48:24Z","abstract_excerpt":"Layer 2 (L2) protocols, payment channels, sidechains, and rollups, are central to blockchain scalability, enabling off-chain execution while preserving on-chain security. Despite growing deployment, existing security models remain protocol-specific and monolithic, hindering compositional reasoning and principled comparison of assumptions and requirements. We present a general security framework for L2 protocols in the IITM-style Universal Composability (iUC) model. At its core is a modular ideal functionality F_layer2 that abstracts mechanism-specific details while capturing the essential stru"},"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":"2504.14965","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2025-04-21T08:48:24Z","cross_cats_sorted":[],"title_canon_sha256":"d538315a3f6a011a47e835718487f124e51e6a5dae465fca92fdac966487496b","abstract_canon_sha256":"0edaa360286ba34d3413b20865b3c5ff5376c9f313c833bab958b9aba0d176ae"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-20T00:04:08.670381Z","signature_b64":"TmY4lVnpVx0K0zoDxE71+z4OCGkEnoggyTqL7DgDjhfJvE87rq568nc40gbjroTwsGe0rhCsS0/IZTqqiu95DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c1b9a34f7da935653c3ee631e5af8365a4b19e53b8709d8d63a93befc7d880b7","last_reissued_at":"2026-05-20T00:04:08.669632Z","signature_status":"signed_v1","first_computed_at":"2026-05-20T00:04:08.669632Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A Security Framework for General Blockchain Layer 2 Protocols","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CR","authors_text":"Matteo Maffei, Yuheng Wang, Zeta Avarikioti","submitted_at":"2025-04-21T08:48:24Z","abstract_excerpt":"Layer 2 (L2) protocols, payment channels, sidechains, and rollups, are central to blockchain scalability, enabling off-chain execution while preserving on-chain security. Despite growing deployment, existing security models remain protocol-specific and monolithic, hindering compositional reasoning and principled comparison of assumptions and requirements. We present a general security framework for L2 protocols in the IITM-style Universal Composability (iUC) model. At its core is a modular ideal functionality F_layer2 that abstracts mechanism-specific details while capturing the essential stru"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.14965","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/2504.14965/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2504.14965","created_at":"2026-05-20T00:04:08.669750+00:00"},{"alias_kind":"arxiv_version","alias_value":"2504.14965v2","created_at":"2026-05-20T00:04:08.669750+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.14965","created_at":"2026-05-20T00:04:08.669750+00:00"},{"alias_kind":"pith_short_12","alias_value":"YG42GT35VE2W","created_at":"2026-05-20T00:04:08.669750+00:00"},{"alias_kind":"pith_short_16","alias_value":"YG42GT35VE2WKPB6","created_at":"2026-05-20T00:04:08.669750+00:00"},{"alias_kind":"pith_short_8","alias_value":"YG42GT35","created_at":"2026-05-20T00:04:08.669750+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/YG42GT35VE2WKPB64YY6LL4DMW","json":"https://pith.science/pith/YG42GT35VE2WKPB64YY6LL4DMW.json","graph_json":"https://pith.science/api/pith-number/YG42GT35VE2WKPB64YY6LL4DMW/graph.json","events_json":"https://pith.science/api/pith-number/YG42GT35VE2WKPB64YY6LL4DMW/events.json","paper":"https://pith.science/paper/YG42GT35"},"agent_actions":{"view_html":"https://pith.science/pith/YG42GT35VE2WKPB64YY6LL4DMW","download_json":"https://pith.science/pith/YG42GT35VE2WKPB64YY6LL4DMW.json","view_paper":"https://pith.science/paper/YG42GT35","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2504.14965&json=true","fetch_graph":"https://pith.science/api/pith-number/YG42GT35VE2WKPB64YY6LL4DMW/graph.json","fetch_events":"https://pith.science/api/pith-number/YG42GT35VE2WKPB64YY6LL4DMW/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/YG42GT35VE2WKPB64YY6LL4DMW/action/timestamp_anchor","attest_storage":"https://pith.science/pith/YG42GT35VE2WKPB64YY6LL4DMW/action/storage_attestation","attest_author":"https://pith.science/pith/YG42GT35VE2WKPB64YY6LL4DMW/action/author_attestation","sign_citation":"https://pith.science/pith/YG42GT35VE2WKPB64YY6LL4DMW/action/citation_signature","submit_replication":"https://pith.science/pith/YG42GT35VE2WKPB64YY6LL4DMW/action/replication_record"}},"created_at":"2026-05-20T00:04:08.669750+00:00","updated_at":"2026-05-20T00:04:08.669750+00:00"}