{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:2UDB3JLM4YKVWECHGGYQ2LMWNK","short_pith_number":"pith:2UDB3JLM","canonical_record":{"source":{"id":"1004.1324","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2010-04-08T13:03:11Z","cross_cats_sorted":[],"title_canon_sha256":"55d4c6c8b64e0c6ce25c4ab111258879d8c54970a271c4f83f2633ff70660b4b","abstract_canon_sha256":"f02392572efce1bf54bc1b27c341ee9f43f4264265178c4f113d2ef8fdadb716"},"schema_version":"1.0"},"canonical_sha256":"d5061da56ce6155b104731b10d2d966aa3209e377e06aa0fac336605d1439196","source":{"kind":"arxiv","id":"1004.1324","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1004.1324","created_at":"2026-05-18T00:58:47Z"},{"alias_kind":"arxiv_version","alias_value":"1004.1324v1","created_at":"2026-05-18T00:58:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1004.1324","created_at":"2026-05-18T00:58:47Z"},{"alias_kind":"pith_short_12","alias_value":"2UDB3JLM4YKV","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_16","alias_value":"2UDB3JLM4YKVWECH","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_8","alias_value":"2UDB3JLM","created_at":"2026-05-18T12:26:03Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:2UDB3JLM4YKVWECHGGYQ2LMWNK","target":"record","payload":{"canonical_record":{"source":{"id":"1004.1324","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2010-04-08T13:03:11Z","cross_cats_sorted":[],"title_canon_sha256":"55d4c6c8b64e0c6ce25c4ab111258879d8c54970a271c4f83f2633ff70660b4b","abstract_canon_sha256":"f02392572efce1bf54bc1b27c341ee9f43f4264265178c4f113d2ef8fdadb716"},"schema_version":"1.0"},"canonical_sha256":"d5061da56ce6155b104731b10d2d966aa3209e377e06aa0fac336605d1439196","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:58:47.593740Z","signature_b64":"sVr7mxFFJBNrwtBZQgtkoA/xofehymbsYltKIvVwvgSbP4jDd7raxOJYHUIWCwNyff6PsW5aQWQ/37tLUFY6DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d5061da56ce6155b104731b10d2d966aa3209e377e06aa0fac336605d1439196","last_reissued_at":"2026-05-18T00:58:47.593150Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:58:47.593150Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1004.1324","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":"2026-05-18T00:58:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3JeDhPb1xShjtAFHgh7PXCk80HFRBPKYGP7ymBHpxMGxg1BrfETVAx+HXJRCiWSNcCKz4q2Ps7u4Leb8S32AAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T10:01:31.272589Z"},"content_sha256":"9afc612d949781c7a14336f5a2150e507b313b87e84c014604d3d09437b083ce","schema_version":"1.0","event_id":"sha256:9afc612d949781c7a14336f5a2150e507b313b87e84c014604d3d09437b083ce"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:2UDB3JLM4YKVWECHGGYQ2LMWNK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Distributed Fault-Tolerant Avionic Systems - A Real-Time Perspective","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.DC","authors_text":"Michael Burke, Neil Audsley","submitted_at":"2010-04-08T13:03:11Z","abstract_excerpt":"This paper examines the problem of introducing advanced forms of fault-tolerance via reconfiguration into safety-critical avionic systems. This is required to enable increased availability after fault occurrence in distributed integrated avionic systems(compared to static federated systems). The approach taken is to identify a migration path from current architectures to those that incorporate re-configuration to a lesser or greater degree. Other challenges identified include change of the development process; incremental and flexible timing and safety analyses; configurable kernels applicable"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1004.1324","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":"2026-05-18T00:58:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"U1zC/asJG3EgBkPBCzvpOuL+tb27j9co4yNGG8aC1cZLrAc6iJSmhRPt7/C8KsjPj/M4pjjrXuXV74ZTpvIJCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T10:01:31.272928Z"},"content_sha256":"aafe7d1431e212464f0939544b68578a522f3799de93b25f29d41349fecb9bef","schema_version":"1.0","event_id":"sha256:aafe7d1431e212464f0939544b68578a522f3799de93b25f29d41349fecb9bef"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2UDB3JLM4YKVWECHGGYQ2LMWNK/bundle.json","state_url":"https://pith.science/pith/2UDB3JLM4YKVWECHGGYQ2LMWNK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2UDB3JLM4YKVWECHGGYQ2LMWNK/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":"2026-06-27T10:01:31Z","links":{"resolver":"https://pith.science/pith/2UDB3JLM4YKVWECHGGYQ2LMWNK","bundle":"https://pith.science/pith/2UDB3JLM4YKVWECHGGYQ2LMWNK/bundle.json","state":"https://pith.science/pith/2UDB3JLM4YKVWECHGGYQ2LMWNK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2UDB3JLM4YKVWECHGGYQ2LMWNK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:2UDB3JLM4YKVWECHGGYQ2LMWNK","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":"f02392572efce1bf54bc1b27c341ee9f43f4264265178c4f113d2ef8fdadb716","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2010-04-08T13:03:11Z","title_canon_sha256":"55d4c6c8b64e0c6ce25c4ab111258879d8c54970a271c4f83f2633ff70660b4b"},"schema_version":"1.0","source":{"id":"1004.1324","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1004.1324","created_at":"2026-05-18T00:58:47Z"},{"alias_kind":"arxiv_version","alias_value":"1004.1324v1","created_at":"2026-05-18T00:58:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1004.1324","created_at":"2026-05-18T00:58:47Z"},{"alias_kind":"pith_short_12","alias_value":"2UDB3JLM4YKV","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_16","alias_value":"2UDB3JLM4YKVWECH","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_8","alias_value":"2UDB3JLM","created_at":"2026-05-18T12:26:03Z"}],"graph_snapshots":[{"event_id":"sha256:aafe7d1431e212464f0939544b68578a522f3799de93b25f29d41349fecb9bef","target":"graph","created_at":"2026-05-18T00:58:47Z","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":"This paper examines the problem of introducing advanced forms of fault-tolerance via reconfiguration into safety-critical avionic systems. This is required to enable increased availability after fault occurrence in distributed integrated avionic systems(compared to static federated systems). The approach taken is to identify a migration path from current architectures to those that incorporate re-configuration to a lesser or greater degree. Other challenges identified include change of the development process; incremental and flexible timing and safety analyses; configurable kernels applicable","authors_text":"Michael Burke, Neil Audsley","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2010-04-08T13:03:11Z","title":"Distributed Fault-Tolerant Avionic Systems - A Real-Time Perspective"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1004.1324","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":"sha256:9afc612d949781c7a14336f5a2150e507b313b87e84c014604d3d09437b083ce","target":"record","created_at":"2026-05-18T00:58:47Z","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":"f02392572efce1bf54bc1b27c341ee9f43f4264265178c4f113d2ef8fdadb716","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2010-04-08T13:03:11Z","title_canon_sha256":"55d4c6c8b64e0c6ce25c4ab111258879d8c54970a271c4f83f2633ff70660b4b"},"schema_version":"1.0","source":{"id":"1004.1324","kind":"arxiv","version":1}},"canonical_sha256":"d5061da56ce6155b104731b10d2d966aa3209e377e06aa0fac336605d1439196","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d5061da56ce6155b104731b10d2d966aa3209e377e06aa0fac336605d1439196","first_computed_at":"2026-05-18T00:58:47.593150Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:58:47.593150Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"sVr7mxFFJBNrwtBZQgtkoA/xofehymbsYltKIvVwvgSbP4jDd7raxOJYHUIWCwNyff6PsW5aQWQ/37tLUFY6DA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:58:47.593740Z","signed_message":"canonical_sha256_bytes"},"source_id":"1004.1324","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9afc612d949781c7a14336f5a2150e507b313b87e84c014604d3d09437b083ce","sha256:aafe7d1431e212464f0939544b68578a522f3799de93b25f29d41349fecb9bef"],"state_sha256":"2a53b7e3665fd1d4f98f874252c26e0aec79161481855afcd3438803a0c3c066"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TFw5DTbD/6WrPuPIyoM4KjaoWUJyswE6j9SZ9vtfEcm7f/UIxr0ZO+3CeVXRp4pGdJC3btg4xB5tU6+7ipVOBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-27T10:01:31.274823Z","bundle_sha256":"e6c9fddd19b0c26dae04417756c21cbb4ead6c780757377de8eb8dadc6446029"}}