{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:OD3IOPZHEBSB43ERXBXRC2KGHG","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":"1e8cc90d072835bfb8f23602a2be73907bcee786b4992a7f9765adff07025fb2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.PL","submitted_at":"2010-07-26T13:05:10Z","title_canon_sha256":"2a525dfb9d0065957829b415fc76bbd25b68fe3e5e850535d141248304426c33"},"schema_version":"1.0","source":{"id":"1007.4446","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1007.4446","created_at":"2026-05-18T04:41:15Z"},{"alias_kind":"arxiv_version","alias_value":"1007.4446v2","created_at":"2026-05-18T04:41:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1007.4446","created_at":"2026-05-18T04:41:15Z"},{"alias_kind":"pith_short_12","alias_value":"OD3IOPZHEBSB","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_16","alias_value":"OD3IOPZHEBSB43ER","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_8","alias_value":"OD3IOPZH","created_at":"2026-05-18T12:26:12Z"}],"graph_snapshots":[{"event_id":"sha256:7830e84b98031bb4616855ac2df2c42e600d3a7e93b37f4e3f45c2c31866019a","target":"graph","created_at":"2026-05-18T04:41:15Z","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 describe a derivational approach to abstract interpretation that yields novel and transparently sound static analyses when applied to well-established abstract machines. To demonstrate the technique and support our claim, we transform the CEK machine of Felleisen and Friedman, a lazy variant of Krivine's machine, and the stack-inspecting CM machine of Clements and Felleisen into abstract interpretations of themselves. The resulting analyses bound temporal ordering of program events; predict return-flow and stack-inspection behavior; and approximate the flow and evaluation of by-need paramet","authors_text":"David Van Horn, Matthew Might","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.PL","submitted_at":"2010-07-26T13:05:10Z","title":"Abstracting Abstract Machines"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1007.4446","kind":"arxiv","version":2},"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:e9f22d28246d81e4a0a0ce30fcc489776d15232e0094140e3c6fd0072f12ea83","target":"record","created_at":"2026-05-18T04:41:15Z","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":"1e8cc90d072835bfb8f23602a2be73907bcee786b4992a7f9765adff07025fb2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.PL","submitted_at":"2010-07-26T13:05:10Z","title_canon_sha256":"2a525dfb9d0065957829b415fc76bbd25b68fe3e5e850535d141248304426c33"},"schema_version":"1.0","source":{"id":"1007.4446","kind":"arxiv","version":2}},"canonical_sha256":"70f6873f2720641e6c91b86f1169463994812e5b04d9d3053de8f781f5ab29b8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"70f6873f2720641e6c91b86f1169463994812e5b04d9d3053de8f781f5ab29b8","first_computed_at":"2026-05-18T04:41:14.999926Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:41:14.999926Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"73dkJMN6utANZJ3tBQy3CLf62FJVoVC1fOolZsZW2yvRHNnp06UX8sfuPp4ZdrOXracIqRUsX/U0aarHOB5mDA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:41:15.000568Z","signed_message":"canonical_sha256_bytes"},"source_id":"1007.4446","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e9f22d28246d81e4a0a0ce30fcc489776d15232e0094140e3c6fd0072f12ea83","sha256:7830e84b98031bb4616855ac2df2c42e600d3a7e93b37f4e3f45c2c31866019a"],"state_sha256":"135bd30ba00f8fcc84f81d3ba95d743da4bc948b8d4f2981a6351c609c673c60"}