{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:SU4OMQNOQ2GK2C2TMXBJCN5IQT","short_pith_number":"pith:SU4OMQNO","canonical_record":{"source":{"id":"0905.2364","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2009-05-14T16:03:51Z","cross_cats_sorted":["cs.FL"],"title_canon_sha256":"79f96b9dc83204d9d7e25b0ce7370cf7088c6048ae826d9614646472ee4b22da","abstract_canon_sha256":"11b64c502c846f35bd83e88a2a07fd5988bb28affaab78ce0f2bc5bca3105f55"},"schema_version":"1.0"},"canonical_sha256":"9538e641ae868cad0b5365c29137a884cf6e799ebdaf1e005a8a13784bc66706","source":{"kind":"arxiv","id":"0905.2364","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0905.2364","created_at":"2026-05-18T00:58:20Z"},{"alias_kind":"arxiv_version","alias_value":"0905.2364v1","created_at":"2026-05-18T00:58:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0905.2364","created_at":"2026-05-18T00:58:20Z"},{"alias_kind":"pith_short_12","alias_value":"SU4OMQNOQ2GK","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_16","alias_value":"SU4OMQNOQ2GK2C2T","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_8","alias_value":"SU4OMQNO","created_at":"2026-05-18T12:26:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:SU4OMQNOQ2GK2C2TMXBJCN5IQT","target":"record","payload":{"canonical_record":{"source":{"id":"0905.2364","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2009-05-14T16:03:51Z","cross_cats_sorted":["cs.FL"],"title_canon_sha256":"79f96b9dc83204d9d7e25b0ce7370cf7088c6048ae826d9614646472ee4b22da","abstract_canon_sha256":"11b64c502c846f35bd83e88a2a07fd5988bb28affaab78ce0f2bc5bca3105f55"},"schema_version":"1.0"},"canonical_sha256":"9538e641ae868cad0b5365c29137a884cf6e799ebdaf1e005a8a13784bc66706","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:58:20.177064Z","signature_b64":"ltzLSJPXpUhGmyY6oxAScbWSdl7xntGi5mfZyL7goOe7h7+UcKc4f+3Us6VvR650SEQS/nRfu/yPiS+s8LObBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9538e641ae868cad0b5365c29137a884cf6e799ebdaf1e005a8a13784bc66706","last_reissued_at":"2026-05-18T00:58:20.176302Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:58:20.176302Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0905.2364","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":"2026-05-18T00:58:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bkBTNelhzfqfPgaD5jn0VTgPP5QeODcfU6iO7KWmMLBFzxmjZeCpSbNXqhz273Gt3Ak2nXO0UhCg4ilH4PMSBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T04:22:53.457844Z"},"content_sha256":"5f36fa1de2ec6c4c60b81b9b79e1c614eb22f9dcda3c387cd579233276513e75","schema_version":"1.0","event_id":"sha256:5f36fa1de2ec6c4c60b81b9b79e1c614eb22f9dcda3c387cd579233276513e75"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:SU4OMQNOQ2GK2C2TMXBJCN5IQT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Formalizing Safety Requirements Using Controlling Automata","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.FL"],"primary_cat":"cs.SE","authors_text":"Gilles Motet, Zhe Chen","submitted_at":"2009-05-14T16:03:51Z","abstract_excerpt":"Safety is an important element of dependability. It is defined as the absence of accidents. Most accidents involving software-intensive systems have been system accidents, which are caused by unsafe inter-system or inter-component interactions. To validate the absence of system hazards concerning dysfunctional interactions, industrials call for approaches of modeling system safety requirements and interaction constraints among components. This paper proposes such a formalism, namely interface control systems (or shortly C-Systems). An interface C-System is composed of an interface automaton an"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0905.2364","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":"2026-05-18T00:58:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PtcQqfhwDyJiX5KafUWW2f7VqZAFL9velndFIYnHYyuATBjD5LpT0WsxzA8hIUsAUlzDNQ67MSfLJWCU6O4JBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T04:22:53.458185Z"},"content_sha256":"0212887a19b1e5e841a5661239dbc669cfae98bf790f6c5ce570611a4746ac12","schema_version":"1.0","event_id":"sha256:0212887a19b1e5e841a5661239dbc669cfae98bf790f6c5ce570611a4746ac12"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SU4OMQNOQ2GK2C2TMXBJCN5IQT/bundle.json","state_url":"https://pith.science/pith/SU4OMQNOQ2GK2C2TMXBJCN5IQT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SU4OMQNOQ2GK2C2TMXBJCN5IQT/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":"2026-06-28T04:22:53Z","links":{"resolver":"https://pith.science/pith/SU4OMQNOQ2GK2C2TMXBJCN5IQT","bundle":"https://pith.science/pith/SU4OMQNOQ2GK2C2TMXBJCN5IQT/bundle.json","state":"https://pith.science/pith/SU4OMQNOQ2GK2C2TMXBJCN5IQT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SU4OMQNOQ2GK2C2TMXBJCN5IQT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:SU4OMQNOQ2GK2C2TMXBJCN5IQT","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":"11b64c502c846f35bd83e88a2a07fd5988bb28affaab78ce0f2bc5bca3105f55","cross_cats_sorted":["cs.FL"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2009-05-14T16:03:51Z","title_canon_sha256":"79f96b9dc83204d9d7e25b0ce7370cf7088c6048ae826d9614646472ee4b22da"},"schema_version":"1.0","source":{"id":"0905.2364","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0905.2364","created_at":"2026-05-18T00:58:20Z"},{"alias_kind":"arxiv_version","alias_value":"0905.2364v1","created_at":"2026-05-18T00:58:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0905.2364","created_at":"2026-05-18T00:58:20Z"},{"alias_kind":"pith_short_12","alias_value":"SU4OMQNOQ2GK","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_16","alias_value":"SU4OMQNOQ2GK2C2T","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_8","alias_value":"SU4OMQNO","created_at":"2026-05-18T12:26:01Z"}],"graph_snapshots":[{"event_id":"sha256:0212887a19b1e5e841a5661239dbc669cfae98bf790f6c5ce570611a4746ac12","target":"graph","created_at":"2026-05-18T00:58:20Z","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":"Safety is an important element of dependability. It is defined as the absence of accidents. Most accidents involving software-intensive systems have been system accidents, which are caused by unsafe inter-system or inter-component interactions. To validate the absence of system hazards concerning dysfunctional interactions, industrials call for approaches of modeling system safety requirements and interaction constraints among components. This paper proposes such a formalism, namely interface control systems (or shortly C-Systems). An interface C-System is composed of an interface automaton an","authors_text":"Gilles Motet, Zhe Chen","cross_cats":["cs.FL"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2009-05-14T16:03:51Z","title":"Formalizing Safety Requirements Using Controlling Automata"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0905.2364","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":"sha256:5f36fa1de2ec6c4c60b81b9b79e1c614eb22f9dcda3c387cd579233276513e75","target":"record","created_at":"2026-05-18T00:58:20Z","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":"11b64c502c846f35bd83e88a2a07fd5988bb28affaab78ce0f2bc5bca3105f55","cross_cats_sorted":["cs.FL"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2009-05-14T16:03:51Z","title_canon_sha256":"79f96b9dc83204d9d7e25b0ce7370cf7088c6048ae826d9614646472ee4b22da"},"schema_version":"1.0","source":{"id":"0905.2364","kind":"arxiv","version":1}},"canonical_sha256":"9538e641ae868cad0b5365c29137a884cf6e799ebdaf1e005a8a13784bc66706","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9538e641ae868cad0b5365c29137a884cf6e799ebdaf1e005a8a13784bc66706","first_computed_at":"2026-05-18T00:58:20.176302Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:58:20.176302Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ltzLSJPXpUhGmyY6oxAScbWSdl7xntGi5mfZyL7goOe7h7+UcKc4f+3Us6VvR650SEQS/nRfu/yPiS+s8LObBg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:58:20.177064Z","signed_message":"canonical_sha256_bytes"},"source_id":"0905.2364","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5f36fa1de2ec6c4c60b81b9b79e1c614eb22f9dcda3c387cd579233276513e75","sha256:0212887a19b1e5e841a5661239dbc669cfae98bf790f6c5ce570611a4746ac12"],"state_sha256":"26684ab706bbd95e98f7ca3a2fda79080b94d0f57df3e1b357d1cf68f84d42e3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"l2Wp7c9hUC0jj05Y709jnczYcgW46snnVVk7vDkWrqGipqECoLeG+69FlhSI7xxDSj9bOrmOrtC2bLcjMgzeAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-28T04:22:53.460074Z","bundle_sha256":"daebd56a0c8a82557325f7da8bfc1510f5e6c3adedcd60db7cd28c0e96ebc86f"}}