{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:FDAS5TLFGOEJCB753IFNGQE3SE","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":"a56c1e0d5fdc137d9b3a8f0b65a96a4471bca2ea4ed369f833069e2dda918cd8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NE","submitted_at":"2013-09-03T15:17:07Z","title_canon_sha256":"1b3a57fefdcbf9a65deb77ed2d0d2e37b878034423778fa85fe7639a075d9ff9"},"schema_version":"1.0","source":{"id":"1309.0719","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.0719","created_at":"2026-05-18T03:03:46Z"},{"alias_kind":"arxiv_version","alias_value":"1309.0719v2","created_at":"2026-05-18T03:03:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.0719","created_at":"2026-05-18T03:03:46Z"},{"alias_kind":"pith_short_12","alias_value":"FDAS5TLFGOEJ","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_16","alias_value":"FDAS5TLFGOEJCB75","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_8","alias_value":"FDAS5TLF","created_at":"2026-05-18T12:27:45Z"}],"graph_snapshots":[{"event_id":"sha256:de26562b82b688a5e4d235e245c84fcbcbb1cd4d92bba482bf8f4f1da22cf8ec","target":"graph","created_at":"2026-05-18T03:03:46Z","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 investigate fundamental decisions in the design of instruction set architectures for linear genetic programs that are used as both model systems in evolutionary biology and underlying solution representations in evolutionary computation. We subjected digital organisms with each tested architecture to seven different computational environments designed to present a range of evolutionary challenges. Our goal was to engineer a general purpose architecture that would be effective under a broad range of evolutionary conditions. We evaluated six different types of architectural features for the v","authors_text":"Charles Ofria, David M. Bryson","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NE","submitted_at":"2013-09-03T15:17:07Z","title":"Understanding Evolutionary Potential in Virtual CPU Instruction Set Architectures"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.0719","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:f15005cc907783a3767ed8d56509ffab749d7df2fba579992f254fa701751a0d","target":"record","created_at":"2026-05-18T03:03:46Z","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":"a56c1e0d5fdc137d9b3a8f0b65a96a4471bca2ea4ed369f833069e2dda918cd8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NE","submitted_at":"2013-09-03T15:17:07Z","title_canon_sha256":"1b3a57fefdcbf9a65deb77ed2d0d2e37b878034423778fa85fe7639a075d9ff9"},"schema_version":"1.0","source":{"id":"1309.0719","kind":"arxiv","version":2}},"canonical_sha256":"28c12ecd6533889107fdda0ad3409b9110f9ba42632d82d561113b2b0409b38f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"28c12ecd6533889107fdda0ad3409b9110f9ba42632d82d561113b2b0409b38f","first_computed_at":"2026-05-18T03:03:46.923263Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:03:46.923263Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wohjIRcYS52mRTS8n94keoZVSAgm4kqOM2GtIrX6iSFrNBjkERAT1OMiFblPSOBnuoGXPyxX5LnaARYAXiEeBA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:03:46.924102Z","signed_message":"canonical_sha256_bytes"},"source_id":"1309.0719","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f15005cc907783a3767ed8d56509ffab749d7df2fba579992f254fa701751a0d","sha256:de26562b82b688a5e4d235e245c84fcbcbb1cd4d92bba482bf8f4f1da22cf8ec"],"state_sha256":"6e808a3ac458691cc6686d2f583cd5abaa0e240e4c5b92ddc262e17fdea3f265"}