{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:JST4ZNTAT63LDWDFGATVYMSRFN","short_pith_number":"pith:JST4ZNTA","canonical_record":{"source":{"id":"1105.4780","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2011-05-24T14:32:18Z","cross_cats_sorted":["cs.AR"],"title_canon_sha256":"2a0201c3ddf1a4d9fbf152ff4d5b93c6570469caa639719a302d98be62a85b8b","abstract_canon_sha256":"b08bf295d26f0057b18590cb2db2c4df1079c385b4924c3a99f73915f28d22b4"},"schema_version":"1.0"},"canonical_sha256":"4ca7ccb6609fb6b1d86530275c32512b6ed9432751aa21f4a49ae39589febcfd","source":{"kind":"arxiv","id":"1105.4780","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1105.4780","created_at":"2026-05-18T02:21:49Z"},{"alias_kind":"arxiv_version","alias_value":"1105.4780v3","created_at":"2026-05-18T02:21:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.4780","created_at":"2026-05-18T02:21:49Z"},{"alias_kind":"pith_short_12","alias_value":"JST4ZNTAT63L","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_16","alias_value":"JST4ZNTAT63LDWDF","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_8","alias_value":"JST4ZNTA","created_at":"2026-05-18T12:26:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:JST4ZNTAT63LDWDFGATVYMSRFN","target":"record","payload":{"canonical_record":{"source":{"id":"1105.4780","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2011-05-24T14:32:18Z","cross_cats_sorted":["cs.AR"],"title_canon_sha256":"2a0201c3ddf1a4d9fbf152ff4d5b93c6570469caa639719a302d98be62a85b8b","abstract_canon_sha256":"b08bf295d26f0057b18590cb2db2c4df1079c385b4924c3a99f73915f28d22b4"},"schema_version":"1.0"},"canonical_sha256":"4ca7ccb6609fb6b1d86530275c32512b6ed9432751aa21f4a49ae39589febcfd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:21:49.908920Z","signature_b64":"J2eG1oSBqR3f+K4MtIBIDDkeDqYKEz/hz3MUkBubtiwUkk5fUfy8Jv2uCsF78uthMC7491pgyMRiuWIZ4El/Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4ca7ccb6609fb6b1d86530275c32512b6ed9432751aa21f4a49ae39589febcfd","last_reissued_at":"2026-05-18T02:21:49.908494Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:21:49.908494Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1105.4780","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:21:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1osxUiQdZTDqddoy88JY7HEnL4t6qM6M2lyLKqtA+RTLatqiC+j7hz6JIHKI4W9492e4PRgQ7dSv8/1/EV7CDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T22:51:52.358723Z"},"content_sha256":"5e8a4c6ddf2136aa02076c438b24e744181f2c330b4e6f9029e118c099321728","schema_version":"1.0","event_id":"sha256:5e8a4c6ddf2136aa02076c438b24e744181f2c330b4e6f9029e118c099321728"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:JST4ZNTAT63LDWDFGATVYMSRFN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Fault-tolerant Algorithms for Tick-Generation in Asynchronous Logic: Robust Pulse Generation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.AR"],"primary_cat":"cs.DC","authors_text":"Christoph Lenzen, Danny Dolev, Matthias Fuegger, Ulrich Schmid","submitted_at":"2011-05-24T14:32:18Z","abstract_excerpt":"Today's hardware technology presents a new challenge in designing robust systems. Deep submicron VLSI technology introduced transient and permanent faults that were never considered in low-level system designs in the past. Still, robustness of that part of the system is crucial and needs to be guaranteed for any successful product. Distributed systems, on the other hand, have been dealing with similar issues for decades. However, neither the basic abstractions nor the complexity of contemporary fault-tolerant distributed algorithms match the peculiarities of hardware implementations. This pape"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.4780","kind":"arxiv","version":3},"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":"2026-05-18T02:21:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KlccQ7ts24+bluXqebMPgQEGKN+N8uTtwTQAIdwsTa9FGfR9EqhAYTKLJnTSfEoWnV4PHdr155YukJwcbMydCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T22:51:52.359070Z"},"content_sha256":"7f84f5a395907c6d3eab14e565cea96758ea33fc9f441d84659ca5382f7f7526","schema_version":"1.0","event_id":"sha256:7f84f5a395907c6d3eab14e565cea96758ea33fc9f441d84659ca5382f7f7526"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JST4ZNTAT63LDWDFGATVYMSRFN/bundle.json","state_url":"https://pith.science/pith/JST4ZNTAT63LDWDFGATVYMSRFN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JST4ZNTAT63LDWDFGATVYMSRFN/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":"2026-05-28T22:51:52Z","links":{"resolver":"https://pith.science/pith/JST4ZNTAT63LDWDFGATVYMSRFN","bundle":"https://pith.science/pith/JST4ZNTAT63LDWDFGATVYMSRFN/bundle.json","state":"https://pith.science/pith/JST4ZNTAT63LDWDFGATVYMSRFN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JST4ZNTAT63LDWDFGATVYMSRFN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:JST4ZNTAT63LDWDFGATVYMSRFN","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":"b08bf295d26f0057b18590cb2db2c4df1079c385b4924c3a99f73915f28d22b4","cross_cats_sorted":["cs.AR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2011-05-24T14:32:18Z","title_canon_sha256":"2a0201c3ddf1a4d9fbf152ff4d5b93c6570469caa639719a302d98be62a85b8b"},"schema_version":"1.0","source":{"id":"1105.4780","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1105.4780","created_at":"2026-05-18T02:21:49Z"},{"alias_kind":"arxiv_version","alias_value":"1105.4780v3","created_at":"2026-05-18T02:21:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.4780","created_at":"2026-05-18T02:21:49Z"},{"alias_kind":"pith_short_12","alias_value":"JST4ZNTAT63L","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_16","alias_value":"JST4ZNTAT63LDWDF","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_8","alias_value":"JST4ZNTA","created_at":"2026-05-18T12:26:32Z"}],"graph_snapshots":[{"event_id":"sha256:7f84f5a395907c6d3eab14e565cea96758ea33fc9f441d84659ca5382f7f7526","target":"graph","created_at":"2026-05-18T02:21:49Z","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":"Today's hardware technology presents a new challenge in designing robust systems. Deep submicron VLSI technology introduced transient and permanent faults that were never considered in low-level system designs in the past. Still, robustness of that part of the system is crucial and needs to be guaranteed for any successful product. Distributed systems, on the other hand, have been dealing with similar issues for decades. However, neither the basic abstractions nor the complexity of contemporary fault-tolerant distributed algorithms match the peculiarities of hardware implementations. This pape","authors_text":"Christoph Lenzen, Danny Dolev, Matthias Fuegger, Ulrich Schmid","cross_cats":["cs.AR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2011-05-24T14:32:18Z","title":"Fault-tolerant Algorithms for Tick-Generation in Asynchronous Logic: Robust Pulse Generation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.4780","kind":"arxiv","version":3},"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":"sha256:5e8a4c6ddf2136aa02076c438b24e744181f2c330b4e6f9029e118c099321728","target":"record","created_at":"2026-05-18T02:21:49Z","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":"b08bf295d26f0057b18590cb2db2c4df1079c385b4924c3a99f73915f28d22b4","cross_cats_sorted":["cs.AR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2011-05-24T14:32:18Z","title_canon_sha256":"2a0201c3ddf1a4d9fbf152ff4d5b93c6570469caa639719a302d98be62a85b8b"},"schema_version":"1.0","source":{"id":"1105.4780","kind":"arxiv","version":3}},"canonical_sha256":"4ca7ccb6609fb6b1d86530275c32512b6ed9432751aa21f4a49ae39589febcfd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4ca7ccb6609fb6b1d86530275c32512b6ed9432751aa21f4a49ae39589febcfd","first_computed_at":"2026-05-18T02:21:49.908494Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:21:49.908494Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"J2eG1oSBqR3f+K4MtIBIDDkeDqYKEz/hz3MUkBubtiwUkk5fUfy8Jv2uCsF78uthMC7491pgyMRiuWIZ4El/Bw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:21:49.908920Z","signed_message":"canonical_sha256_bytes"},"source_id":"1105.4780","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5e8a4c6ddf2136aa02076c438b24e744181f2c330b4e6f9029e118c099321728","sha256:7f84f5a395907c6d3eab14e565cea96758ea33fc9f441d84659ca5382f7f7526"],"state_sha256":"b27b72f65e6c807d7bfefd56ef21d09e2890f6b092a708415155995f855840bc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+9JdpWpsiB0kUJOk2c3IOhlWzfaE2OX4VM+qQwJniMiyXomoqiem18Bcr90PpBRXxb9B3oRQ5Dmb2J10QpxHCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T22:51:52.361042Z","bundle_sha256":"e9a8e1d8d266de4f6a50fdb9e4750c34a5718625c81071d51af9db62d2cc9cfa"}}