{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:F2UM4HRGBM4ZOTLBJMWFNTH7K4","short_pith_number":"pith:F2UM4HRG","canonical_record":{"source":{"id":"1502.02942","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2015-02-10T15:16:50Z","cross_cats_sorted":["cs.PL"],"title_canon_sha256":"8a6f8127a48f01bca1909321dbf0b8da91f366c92a4b0cb336ab7f9196059fd6","abstract_canon_sha256":"1cdd6e7f0e2b23e0a200d109458220cb7f9533c4adb3ed4a518a94c7527bbed9"},"schema_version":"1.0"},"canonical_sha256":"2ea8ce1e260b39974d614b2c56ccff5703bc25a4484de9204132c3f4d04d7997","source":{"kind":"arxiv","id":"1502.02942","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.02942","created_at":"2026-05-18T02:27:30Z"},{"alias_kind":"arxiv_version","alias_value":"1502.02942v1","created_at":"2026-05-18T02:27:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.02942","created_at":"2026-05-18T02:27:30Z"},{"alias_kind":"pith_short_12","alias_value":"F2UM4HRGBM4Z","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_16","alias_value":"F2UM4HRGBM4ZOTLB","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_8","alias_value":"F2UM4HRG","created_at":"2026-05-18T12:29:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:F2UM4HRGBM4ZOTLBJMWFNTH7K4","target":"record","payload":{"canonical_record":{"source":{"id":"1502.02942","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2015-02-10T15:16:50Z","cross_cats_sorted":["cs.PL"],"title_canon_sha256":"8a6f8127a48f01bca1909321dbf0b8da91f366c92a4b0cb336ab7f9196059fd6","abstract_canon_sha256":"1cdd6e7f0e2b23e0a200d109458220cb7f9533c4adb3ed4a518a94c7527bbed9"},"schema_version":"1.0"},"canonical_sha256":"2ea8ce1e260b39974d614b2c56ccff5703bc25a4484de9204132c3f4d04d7997","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:27:30.294808Z","signature_b64":"GIyKl0tKnWhSwG2YTrYAP8RZ06NY45JRX2Pzm7P8FRtPArc5hF4EZMjTafb8MsnnoJsiEPSmdwSFNwnsXKhYAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2ea8ce1e260b39974d614b2c56ccff5703bc25a4484de9204132c3f4d04d7997","last_reissued_at":"2026-05-18T02:27:30.293993Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:27:30.293993Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1502.02942","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":"2026-05-18T02:27:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"woxx/MucDZHy/OYR4+QVxpt60uBI78nMIr5mZRzdsUTnJl96X+Z7v7aJmtt8joEx02ZX/XPkdVW+4L1EtFEDBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T23:35:39.041855Z"},"content_sha256":"b29b02327e31374333242caf53972e0938e5540dfd5943913bf637492f2a1b9c","schema_version":"1.0","event_id":"sha256:b29b02327e31374333242caf53972e0938e5540dfd5943913bf637492f2a1b9c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:F2UM4HRGBM4ZOTLBJMWFNTH7K4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Skipping Refinement","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.PL"],"primary_cat":"cs.LO","authors_text":"Mitesh Jain, Panagiotis Manolios","submitted_at":"2015-02-10T15:16:50Z","abstract_excerpt":"We introduce skipping refinement, a new notion of correctness for reasoning about optimized reactive systems. Reasoning about reactive systems using refinement involves defining an abstract, high-level specification system and a concrete, low-level implementation system. One then shows that every behavior allowed by the implementation is also allowed by the specification. Due to the difference in abstraction levels, it is often the case that the implementation requires many steps to match one step of the specification, hence, it is quite useful for refinement to directly account for stuttering"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.02942","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":"2026-05-18T02:27:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PyxBiV5sd3u+IIhA964cxpct7iECV/ZcTAExgRAt2sjfP5/vYjE3t3yPirIiUZr8SDzBbirkLKGCSfUtVHDVAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T23:35:39.042191Z"},"content_sha256":"d39b9df779a5e3d50122b6a3bc17e558a9f6ec2014e72f9d4178ba7293911da2","schema_version":"1.0","event_id":"sha256:d39b9df779a5e3d50122b6a3bc17e558a9f6ec2014e72f9d4178ba7293911da2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/F2UM4HRGBM4ZOTLBJMWFNTH7K4/bundle.json","state_url":"https://pith.science/pith/F2UM4HRGBM4ZOTLBJMWFNTH7K4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/F2UM4HRGBM4ZOTLBJMWFNTH7K4/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":"2026-06-28T23:35:39Z","links":{"resolver":"https://pith.science/pith/F2UM4HRGBM4ZOTLBJMWFNTH7K4","bundle":"https://pith.science/pith/F2UM4HRGBM4ZOTLBJMWFNTH7K4/bundle.json","state":"https://pith.science/pith/F2UM4HRGBM4ZOTLBJMWFNTH7K4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/F2UM4HRGBM4ZOTLBJMWFNTH7K4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:F2UM4HRGBM4ZOTLBJMWFNTH7K4","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":"1cdd6e7f0e2b23e0a200d109458220cb7f9533c4adb3ed4a518a94c7527bbed9","cross_cats_sorted":["cs.PL"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2015-02-10T15:16:50Z","title_canon_sha256":"8a6f8127a48f01bca1909321dbf0b8da91f366c92a4b0cb336ab7f9196059fd6"},"schema_version":"1.0","source":{"id":"1502.02942","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.02942","created_at":"2026-05-18T02:27:30Z"},{"alias_kind":"arxiv_version","alias_value":"1502.02942v1","created_at":"2026-05-18T02:27:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.02942","created_at":"2026-05-18T02:27:30Z"},{"alias_kind":"pith_short_12","alias_value":"F2UM4HRGBM4Z","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_16","alias_value":"F2UM4HRGBM4ZOTLB","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_8","alias_value":"F2UM4HRG","created_at":"2026-05-18T12:29:19Z"}],"graph_snapshots":[{"event_id":"sha256:d39b9df779a5e3d50122b6a3bc17e558a9f6ec2014e72f9d4178ba7293911da2","target":"graph","created_at":"2026-05-18T02:27:30Z","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 introduce skipping refinement, a new notion of correctness for reasoning about optimized reactive systems. Reasoning about reactive systems using refinement involves defining an abstract, high-level specification system and a concrete, low-level implementation system. One then shows that every behavior allowed by the implementation is also allowed by the specification. Due to the difference in abstraction levels, it is often the case that the implementation requires many steps to match one step of the specification, hence, it is quite useful for refinement to directly account for stuttering","authors_text":"Mitesh Jain, Panagiotis Manolios","cross_cats":["cs.PL"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2015-02-10T15:16:50Z","title":"Skipping Refinement"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.02942","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:b29b02327e31374333242caf53972e0938e5540dfd5943913bf637492f2a1b9c","target":"record","created_at":"2026-05-18T02:27:30Z","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":"1cdd6e7f0e2b23e0a200d109458220cb7f9533c4adb3ed4a518a94c7527bbed9","cross_cats_sorted":["cs.PL"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2015-02-10T15:16:50Z","title_canon_sha256":"8a6f8127a48f01bca1909321dbf0b8da91f366c92a4b0cb336ab7f9196059fd6"},"schema_version":"1.0","source":{"id":"1502.02942","kind":"arxiv","version":1}},"canonical_sha256":"2ea8ce1e260b39974d614b2c56ccff5703bc25a4484de9204132c3f4d04d7997","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2ea8ce1e260b39974d614b2c56ccff5703bc25a4484de9204132c3f4d04d7997","first_computed_at":"2026-05-18T02:27:30.293993Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:27:30.293993Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GIyKl0tKnWhSwG2YTrYAP8RZ06NY45JRX2Pzm7P8FRtPArc5hF4EZMjTafb8MsnnoJsiEPSmdwSFNwnsXKhYAg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:27:30.294808Z","signed_message":"canonical_sha256_bytes"},"source_id":"1502.02942","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b29b02327e31374333242caf53972e0938e5540dfd5943913bf637492f2a1b9c","sha256:d39b9df779a5e3d50122b6a3bc17e558a9f6ec2014e72f9d4178ba7293911da2"],"state_sha256":"e0fc908fa810091aa5349ba02f3aa1dc9baf3bd61df9dda12dafb0bda86e8f8e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Inu2n/wDuVh3xgN68mhfG7U5LF9zNMDx3zj6WDd7HF2QpNkkqR4osioQyuUol+Atg/vT8aBUtQJWEt36NmWBBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-28T23:35:39.044178Z","bundle_sha256":"26c3fbe95351ba0b72a204e710ab59bc2bdd68e0b9a16bb52b4143863093c7fe"}}