{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:FS3CAOBRJOLON7MRPBSNMC3WVS","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":"1954698dae67ff85281ded5c6eb3c057b9fb9969fa9a4d40a93d407d9bd2a817","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2018-05-18T20:38:16Z","title_canon_sha256":"88c40138f163b3bd66004106af895390ae9bbc425d1d442f730c9afb45d10724"},"schema_version":"1.0","source":{"id":"1805.07434","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.07434","created_at":"2026-05-18T00:15:33Z"},{"alias_kind":"arxiv_version","alias_value":"1805.07434v1","created_at":"2026-05-18T00:15:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.07434","created_at":"2026-05-18T00:15:33Z"},{"alias_kind":"pith_short_12","alias_value":"FS3CAOBRJOLO","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_16","alias_value":"FS3CAOBRJOLON7MR","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_8","alias_value":"FS3CAOBR","created_at":"2026-05-18T12:32:25Z"}],"graph_snapshots":[{"event_id":"sha256:68d72f14a7abffc10e12fd504e1524e9c302fb01a798d166fd114584dee6fecc","target":"graph","created_at":"2026-05-18T00:15:33Z","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":"Spatial concurrent constraint programming (SCCP) is an algebraic model of spatial modalities in constrained-based process calculi; it can be used to reason about spatial information distributed among the agents of a system. This work presents an executable rewriting logic semantics of SCCP with extrusion (i.e., process mobility) that uses rewriting modulo SMT, a novel technique that combines the power of term rewriting, matching algorithms, and SMT-solving. In this setting, constraints are encoded as formulas in a theory with a satisfaction relation decided by an SMT solver, while the topology","authors_text":"Camilo Rocha, Miguel Romero","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2018-05-18T20:38:16Z","title":"Reachability Analysis for Spatial Concurrent Constraint Systems with Extrusion"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.07434","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":"sha256:43895ad5aef9f33bd61518f4ca184ed29d2032c77e48f9f75efcbbc17f81dd13","target":"record","created_at":"2026-05-18T00:15:33Z","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":"1954698dae67ff85281ded5c6eb3c057b9fb9969fa9a4d40a93d407d9bd2a817","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2018-05-18T20:38:16Z","title_canon_sha256":"88c40138f163b3bd66004106af895390ae9bbc425d1d442f730c9afb45d10724"},"schema_version":"1.0","source":{"id":"1805.07434","kind":"arxiv","version":1}},"canonical_sha256":"2cb62038314b96e6fd917864d60b76ac9aaa9db5e2ef32dc367ba0cf7742ec3f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2cb62038314b96e6fd917864d60b76ac9aaa9db5e2ef32dc367ba0cf7742ec3f","first_computed_at":"2026-05-18T00:15:33.608918Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:15:33.608918Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hPlMGl+aK0r/GcEWZYLMtI3CN8osOY4hvvwDlZ16Z8KNUPlaLImJNAuRPJtI6CNsk/n1TTC98pkyIROD/13YAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:15:33.609465Z","signed_message":"canonical_sha256_bytes"},"source_id":"1805.07434","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:43895ad5aef9f33bd61518f4ca184ed29d2032c77e48f9f75efcbbc17f81dd13","sha256:68d72f14a7abffc10e12fd504e1524e9c302fb01a798d166fd114584dee6fecc"],"state_sha256":"f3cf0fafe6b901e4e214b5dc8b0d7e2e18045a261a9faf166093edd9c085dc5b"}