{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2003:ZHHXNAXBRG27NBNCVDRMXTMCYW","short_pith_number":"pith:ZHHXNAXB","canonical_record":{"source":{"id":"cs/0312019","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cs.LO","submitted_at":"2003-12-11T14:54:06Z","cross_cats_sorted":[],"title_canon_sha256":"d7253d10d5fcdc7ed72f0520d6a9f4fa14a5364c2de125e63cff2d031802f3b7","abstract_canon_sha256":"fa71e3fc7f7fac913c4ef3396433838cc05b52706060d156991c3a8bfd95cbe7"},"schema_version":"1.0"},"canonical_sha256":"c9cf7682e189b5f685a2a8e2cbcd82c587ef4d01d1958eb1c2b0f0c4a4c4025f","source":{"kind":"arxiv","id":"cs/0312019","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cs/0312019","created_at":"2026-05-18T04:08:54Z"},{"alias_kind":"arxiv_version","alias_value":"cs/0312019v1","created_at":"2026-05-18T04:08:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cs/0312019","created_at":"2026-05-18T04:08:54Z"},{"alias_kind":"pith_short_12","alias_value":"ZHHXNAXBRG27","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"ZHHXNAXBRG27NBNC","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"ZHHXNAXB","created_at":"2026-05-18T12:25:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2003:ZHHXNAXBRG27NBNCVDRMXTMCYW","target":"record","payload":{"canonical_record":{"source":{"id":"cs/0312019","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cs.LO","submitted_at":"2003-12-11T14:54:06Z","cross_cats_sorted":[],"title_canon_sha256":"d7253d10d5fcdc7ed72f0520d6a9f4fa14a5364c2de125e63cff2d031802f3b7","abstract_canon_sha256":"fa71e3fc7f7fac913c4ef3396433838cc05b52706060d156991c3a8bfd95cbe7"},"schema_version":"1.0"},"canonical_sha256":"c9cf7682e189b5f685a2a8e2cbcd82c587ef4d01d1958eb1c2b0f0c4a4c4025f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:08:54.257509Z","signature_b64":"Kv4r1PgE39ZLXWOSeeREjBTYBln11FmlZjP5k4Hj9kAu/XSasg990ecSahIqIon3UqvTeqzs3hPNc1YwQZSdBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c9cf7682e189b5f685a2a8e2cbcd82c587ef4d01d1958eb1c2b0f0c4a4c4025f","last_reissued_at":"2026-05-18T04:08:54.256916Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:08:54.256916Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cs/0312019","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":"2026-05-18T04:08:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xQsy9m2bysZKsQ5d0ije1QZH++8ijCYAFNr6Vux5Gm1thuImFro3ZlTyaOnPex8AqZ93TVD0ZDsDzua+IYALCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T10:32:30.401635Z"},"content_sha256":"11cd431678b6cf30014b842991c67741494405ca11c53cbd90e53628332a167b","schema_version":"1.0","event_id":"sha256:11cd431678b6cf30014b842991c67741494405ca11c53cbd90e53628332a167b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2003:ZHHXNAXBRG27NBNCVDRMXTMCYW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Verification of recursive parallel systems","license":"","headline":"","cross_cats":[],"primary_cat":"cs.LO","authors_text":"Adriano Peron, Laura Bozzelli, Massimo Benerecetti","submitted_at":"2003-12-11T14:54:06Z","abstract_excerpt":"In this paper we consider the problem of proving properties of infinite behaviour of formalisms suitable to describe (infinite state) systems with recursion and parallelism. As a formal setting, we consider the framework of Process Rewriting Systems (PRSs). For a meaningfull fragment of PRSs, allowing to accommodate both Pushdown Automata and Petri Nets, we state decidability results for a class of properties about infinite derivations (infinite term rewritings). The given results can be exploited for the automatic verification of some classes of linear time properties of infinite state system"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cs/0312019","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":"2026-05-18T04:08:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KCCnG+mRRSY9kFgvch5Oz09Fh39TAioyNzyXSXeZeUW4Lw7zBhe9wwMzqm4WLaSQSSEG8pnzgdUQ8UoMrzRgAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T10:32:30.402250Z"},"content_sha256":"611eaf3b0b4a61539a97cb5b3c3f3d257a2c78feadb423647bb2f89447baba6e","schema_version":"1.0","event_id":"sha256:611eaf3b0b4a61539a97cb5b3c3f3d257a2c78feadb423647bb2f89447baba6e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZHHXNAXBRG27NBNCVDRMXTMCYW/bundle.json","state_url":"https://pith.science/pith/ZHHXNAXBRG27NBNCVDRMXTMCYW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZHHXNAXBRG27NBNCVDRMXTMCYW/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":"2026-06-09T10:32:30Z","links":{"resolver":"https://pith.science/pith/ZHHXNAXBRG27NBNCVDRMXTMCYW","bundle":"https://pith.science/pith/ZHHXNAXBRG27NBNCVDRMXTMCYW/bundle.json","state":"https://pith.science/pith/ZHHXNAXBRG27NBNCVDRMXTMCYW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZHHXNAXBRG27NBNCVDRMXTMCYW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2003:ZHHXNAXBRG27NBNCVDRMXTMCYW","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":"fa71e3fc7f7fac913c4ef3396433838cc05b52706060d156991c3a8bfd95cbe7","cross_cats_sorted":[],"license":"","primary_cat":"cs.LO","submitted_at":"2003-12-11T14:54:06Z","title_canon_sha256":"d7253d10d5fcdc7ed72f0520d6a9f4fa14a5364c2de125e63cff2d031802f3b7"},"schema_version":"1.0","source":{"id":"cs/0312019","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cs/0312019","created_at":"2026-05-18T04:08:54Z"},{"alias_kind":"arxiv_version","alias_value":"cs/0312019v1","created_at":"2026-05-18T04:08:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cs/0312019","created_at":"2026-05-18T04:08:54Z"},{"alias_kind":"pith_short_12","alias_value":"ZHHXNAXBRG27","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"ZHHXNAXBRG27NBNC","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"ZHHXNAXB","created_at":"2026-05-18T12:25:52Z"}],"graph_snapshots":[{"event_id":"sha256:611eaf3b0b4a61539a97cb5b3c3f3d257a2c78feadb423647bb2f89447baba6e","target":"graph","created_at":"2026-05-18T04:08:54Z","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 consider the problem of proving properties of infinite behaviour of formalisms suitable to describe (infinite state) systems with recursion and parallelism. As a formal setting, we consider the framework of Process Rewriting Systems (PRSs). For a meaningfull fragment of PRSs, allowing to accommodate both Pushdown Automata and Petri Nets, we state decidability results for a class of properties about infinite derivations (infinite term rewritings). The given results can be exploited for the automatic verification of some classes of linear time properties of infinite state system","authors_text":"Adriano Peron, Laura Bozzelli, Massimo Benerecetti","cross_cats":[],"headline":"","license":"","primary_cat":"cs.LO","submitted_at":"2003-12-11T14:54:06Z","title":"Verification of recursive parallel systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cs/0312019","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":"sha256:11cd431678b6cf30014b842991c67741494405ca11c53cbd90e53628332a167b","target":"record","created_at":"2026-05-18T04:08:54Z","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":"fa71e3fc7f7fac913c4ef3396433838cc05b52706060d156991c3a8bfd95cbe7","cross_cats_sorted":[],"license":"","primary_cat":"cs.LO","submitted_at":"2003-12-11T14:54:06Z","title_canon_sha256":"d7253d10d5fcdc7ed72f0520d6a9f4fa14a5364c2de125e63cff2d031802f3b7"},"schema_version":"1.0","source":{"id":"cs/0312019","kind":"arxiv","version":1}},"canonical_sha256":"c9cf7682e189b5f685a2a8e2cbcd82c587ef4d01d1958eb1c2b0f0c4a4c4025f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c9cf7682e189b5f685a2a8e2cbcd82c587ef4d01d1958eb1c2b0f0c4a4c4025f","first_computed_at":"2026-05-18T04:08:54.256916Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:08:54.256916Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Kv4r1PgE39ZLXWOSeeREjBTYBln11FmlZjP5k4Hj9kAu/XSasg990ecSahIqIon3UqvTeqzs3hPNc1YwQZSdBw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:08:54.257509Z","signed_message":"canonical_sha256_bytes"},"source_id":"cs/0312019","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:11cd431678b6cf30014b842991c67741494405ca11c53cbd90e53628332a167b","sha256:611eaf3b0b4a61539a97cb5b3c3f3d257a2c78feadb423647bb2f89447baba6e"],"state_sha256":"ec7ee40ae2c29ae9700610b7ffd277e7f857e89f4005cc2d6cf3498938203b5b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iIEdkd74BuPKwLimbg2bPZUVh2H6K6Mt85aP4PK7vjAAy9Ce+V8XkwJedSVo7NwEvsMZmSUbR0k1vbesCfIjCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-09T10:32:30.405846Z","bundle_sha256":"1f30cd328b51f44a4347c5944dfa7ed12b4d52be8b30c8ab5a624918f6be9f98"}}