{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:GCXPJBHJIAFENY6BN2G2PCYY6K","short_pith_number":"pith:GCXPJBHJ","canonical_record":{"source":{"id":"1009.0817","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.PL","submitted_at":"2010-09-04T09:39:53Z","cross_cats_sorted":[],"title_canon_sha256":"30a3ded66f4dc6275f9f53bb157957e0d66b9f5355d159a981b7523c67f9ab6c","abstract_canon_sha256":"4d4b2853fc5ea2e68ec9269e3c84c00b3ecf358fe263c8d52576b7c982e52f49"},"schema_version":"1.0"},"canonical_sha256":"30aef484e9400a46e3c16e8da78b18f2a1525e970215c045d4e68a926339caa2","source":{"kind":"arxiv","id":"1009.0817","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.0817","created_at":"2026-05-18T04:41:24Z"},{"alias_kind":"arxiv_version","alias_value":"1009.0817v1","created_at":"2026-05-18T04:41:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.0817","created_at":"2026-05-18T04:41:24Z"},{"alias_kind":"pith_short_12","alias_value":"GCXPJBHJIAFE","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_16","alias_value":"GCXPJBHJIAFENY6B","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_8","alias_value":"GCXPJBHJ","created_at":"2026-05-18T12:26:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:GCXPJBHJIAFENY6BN2G2PCYY6K","target":"record","payload":{"canonical_record":{"source":{"id":"1009.0817","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.PL","submitted_at":"2010-09-04T09:39:53Z","cross_cats_sorted":[],"title_canon_sha256":"30a3ded66f4dc6275f9f53bb157957e0d66b9f5355d159a981b7523c67f9ab6c","abstract_canon_sha256":"4d4b2853fc5ea2e68ec9269e3c84c00b3ecf358fe263c8d52576b7c982e52f49"},"schema_version":"1.0"},"canonical_sha256":"30aef484e9400a46e3c16e8da78b18f2a1525e970215c045d4e68a926339caa2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:41:24.536887Z","signature_b64":"wAD8B0urdcJPtVFh5deyONTJPqium2lz/B1n0aW32lKwvSXl/yw/tQLCDDS/uSD6PxMkeCScqUczn+0pIA3bDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"30aef484e9400a46e3c16e8da78b18f2a1525e970215c045d4e68a926339caa2","last_reissued_at":"2026-05-18T04:41:24.536215Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:41:24.536215Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1009.0817","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":"2026-05-18T04:41:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1t3e+z+qPAqTSXGsRt3aNCEflqcW6MPM44sSwqqoY8s92VdoHxiUgo2iRrVg0/up0bMtKEcDDPiUjuSvrWh2Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T21:33:39.370266Z"},"content_sha256":"760f4d7d8246b0f603b6ab1b1cc1b8188cc1c954c4e76e8ba4c3335b1e0b5760","schema_version":"1.0","event_id":"sha256:760f4d7d8246b0f603b6ab1b1cc1b8188cc1c954c4e76e8ba4c3335b1e0b5760"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:GCXPJBHJIAFENY6BN2G2PCYY6K","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Towards a Property Preserving Transformation from IEC 61131-3 to BIP","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.PL","authors_text":"Anton Hattendorf, Jan Olaf Blech, Jia Huang","submitted_at":"2010-09-04T09:39:53Z","abstract_excerpt":"We report on a transformation from Sequential Function Charts of the IEC 61131-3 standard to BIP. Our presentation features a description of formal syntax and semantics representation of the involved languages and transformation rules. Furthermore, we present a formalism for describing invariants of IEC 61131-3 systems and establish a notion of invariant preservation between the two languages. For a subset of our transformation rules we sketch a proof showing invariant preservation during the transformation of IEC 61131-3 to BIP and vice versa."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.0817","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":"2026-05-18T04:41:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Abk+8mNcOVMoo6zr3RSBQ04BsnFSemGmxD55Rs3pkW8vxffoICVZqgAsEtTt6xCAw+rHtpk47vReUGzijd9XBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T21:33:39.370626Z"},"content_sha256":"4e4dfe6363f81027928ecfbb5fcb8259a446d4bd58bd137009338eea67d3f385","schema_version":"1.0","event_id":"sha256:4e4dfe6363f81027928ecfbb5fcb8259a446d4bd58bd137009338eea67d3f385"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GCXPJBHJIAFENY6BN2G2PCYY6K/bundle.json","state_url":"https://pith.science/pith/GCXPJBHJIAFENY6BN2G2PCYY6K/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GCXPJBHJIAFENY6BN2G2PCYY6K/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":"2026-06-02T21:33:39Z","links":{"resolver":"https://pith.science/pith/GCXPJBHJIAFENY6BN2G2PCYY6K","bundle":"https://pith.science/pith/GCXPJBHJIAFENY6BN2G2PCYY6K/bundle.json","state":"https://pith.science/pith/GCXPJBHJIAFENY6BN2G2PCYY6K/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GCXPJBHJIAFENY6BN2G2PCYY6K/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:GCXPJBHJIAFENY6BN2G2PCYY6K","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":"4d4b2853fc5ea2e68ec9269e3c84c00b3ecf358fe263c8d52576b7c982e52f49","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.PL","submitted_at":"2010-09-04T09:39:53Z","title_canon_sha256":"30a3ded66f4dc6275f9f53bb157957e0d66b9f5355d159a981b7523c67f9ab6c"},"schema_version":"1.0","source":{"id":"1009.0817","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.0817","created_at":"2026-05-18T04:41:24Z"},{"alias_kind":"arxiv_version","alias_value":"1009.0817v1","created_at":"2026-05-18T04:41:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.0817","created_at":"2026-05-18T04:41:24Z"},{"alias_kind":"pith_short_12","alias_value":"GCXPJBHJIAFE","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_16","alias_value":"GCXPJBHJIAFENY6B","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_8","alias_value":"GCXPJBHJ","created_at":"2026-05-18T12:26:07Z"}],"graph_snapshots":[{"event_id":"sha256:4e4dfe6363f81027928ecfbb5fcb8259a446d4bd58bd137009338eea67d3f385","target":"graph","created_at":"2026-05-18T04:41:24Z","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":"We report on a transformation from Sequential Function Charts of the IEC 61131-3 standard to BIP. Our presentation features a description of formal syntax and semantics representation of the involved languages and transformation rules. Furthermore, we present a formalism for describing invariants of IEC 61131-3 systems and establish a notion of invariant preservation between the two languages. For a subset of our transformation rules we sketch a proof showing invariant preservation during the transformation of IEC 61131-3 to BIP and vice versa.","authors_text":"Anton Hattendorf, Jan Olaf Blech, Jia Huang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.PL","submitted_at":"2010-09-04T09:39:53Z","title":"Towards a Property Preserving Transformation from IEC 61131-3 to BIP"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.0817","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":"sha256:760f4d7d8246b0f603b6ab1b1cc1b8188cc1c954c4e76e8ba4c3335b1e0b5760","target":"record","created_at":"2026-05-18T04:41:24Z","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":"4d4b2853fc5ea2e68ec9269e3c84c00b3ecf358fe263c8d52576b7c982e52f49","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.PL","submitted_at":"2010-09-04T09:39:53Z","title_canon_sha256":"30a3ded66f4dc6275f9f53bb157957e0d66b9f5355d159a981b7523c67f9ab6c"},"schema_version":"1.0","source":{"id":"1009.0817","kind":"arxiv","version":1}},"canonical_sha256":"30aef484e9400a46e3c16e8da78b18f2a1525e970215c045d4e68a926339caa2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"30aef484e9400a46e3c16e8da78b18f2a1525e970215c045d4e68a926339caa2","first_computed_at":"2026-05-18T04:41:24.536215Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:41:24.536215Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wAD8B0urdcJPtVFh5deyONTJPqium2lz/B1n0aW32lKwvSXl/yw/tQLCDDS/uSD6PxMkeCScqUczn+0pIA3bDA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:41:24.536887Z","signed_message":"canonical_sha256_bytes"},"source_id":"1009.0817","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:760f4d7d8246b0f603b6ab1b1cc1b8188cc1c954c4e76e8ba4c3335b1e0b5760","sha256:4e4dfe6363f81027928ecfbb5fcb8259a446d4bd58bd137009338eea67d3f385"],"state_sha256":"7154170a428201e7037389df92dde44eae8745be4f7fc3d58f30247c61a6c78e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"j5GQHtuoW6xKRyqKCT5JiHZM0fKnwI8u8kDIk2WUHRmc//BlvsxIUMtLemmcyeqOU/Mfn6tmy5KTw38SbU/QDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T21:33:39.372573Z","bundle_sha256":"47ebc66a794d15142b5a61e0fd88ec13d6d13135ada9ed95c1046710fe2ba244"}}