{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:RHJBXKCODIJ2QVZHIT3HJFGCH6","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":"cb31f22a6e2b29031197035ac33e4c495eefb99d6e8e6ee475d9ab199072d5dc","cross_cats_sorted":["cs.NE"],"license":"","primary_cat":"cs.AI","submitted_at":"2001-02-25T19:29:55Z","title_canon_sha256":"67f63e0b91fc9373f3ab02a02e045e4873c978f1d64c7eeb211bcd3df8049fd3"},"schema_version":"1.0","source":{"id":"cs/0102027","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cs/0102027","created_at":"2026-07-04T14:24:07Z"},{"alias_kind":"arxiv_version","alias_value":"cs/0102027v3","created_at":"2026-07-04T14:24:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cs/0102027","created_at":"2026-07-04T14:24:07Z"},{"alias_kind":"pith_short_12","alias_value":"RHJBXKCODIJ2","created_at":"2026-07-04T14:24:07Z"},{"alias_kind":"pith_short_16","alias_value":"RHJBXKCODIJ2QVZH","created_at":"2026-07-04T14:24:07Z"},{"alias_kind":"pith_short_8","alias_value":"RHJBXKCO","created_at":"2026-07-04T14:24:07Z"}],"graph_snapshots":[{"event_id":"sha256:24902e2a6e96bd87c03f33fc376793944481a6ad1e3c739c170871fa61f5a4c6","target":"graph","created_at":"2026-07-04T14:24:07Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/cs/0102027/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Gene expression programming, a genotype/phenotype genetic algorithm (linear and ramified), is presented here for the first time as a new technique for the creation of computer programs. Gene expression programming uses character linear chromosomes composed of genes structurally organized in a head and a tail. The chromosomes function as a genome and are subjected to modification by means of mutation, transposition, root transposition, gene transposition, gene recombination, and one- and two-point recombination. The chromosomes encode expression trees which are the object of selection. The crea","authors_text":"Candida Ferreira","cross_cats":["cs.NE"],"headline":"","license":"","primary_cat":"cs.AI","submitted_at":"2001-02-25T19:29:55Z","title":"Gene Expression Programming: a New Adaptive Algorithm for Solving Problems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cs/0102027","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":"sha256:6df39a4a197c8b3fad07d270bd93e5fa41cfdfb313f7104412a097946555d965","target":"record","created_at":"2026-07-04T14:24:07Z","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":"cb31f22a6e2b29031197035ac33e4c495eefb99d6e8e6ee475d9ab199072d5dc","cross_cats_sorted":["cs.NE"],"license":"","primary_cat":"cs.AI","submitted_at":"2001-02-25T19:29:55Z","title_canon_sha256":"67f63e0b91fc9373f3ab02a02e045e4873c978f1d64c7eeb211bcd3df8049fd3"},"schema_version":"1.0","source":{"id":"cs/0102027","kind":"arxiv","version":3}},"canonical_sha256":"89d21ba84e1a13a8572744f67494c23fbb1670b57e528adf18b487d32fd05ecb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"89d21ba84e1a13a8572744f67494c23fbb1670b57e528adf18b487d32fd05ecb","first_computed_at":"2026-07-04T14:24:07.569699Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:24:07.569699Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bVxapAax3IGLUS7ifCjEBeqbnEoStV5oqiKSk22AoDuBPu20z1RDuK+DCfLtoDZe6vxtRBxIgGZDA8U1PiHzDw==","signature_status":"signed_v1","signed_at":"2026-07-04T14:24:07.570089Z","signed_message":"canonical_sha256_bytes"},"source_id":"cs/0102027","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6df39a4a197c8b3fad07d270bd93e5fa41cfdfb313f7104412a097946555d965","sha256:24902e2a6e96bd87c03f33fc376793944481a6ad1e3c739c170871fa61f5a4c6"],"state_sha256":"6d74c436dda1aa031a9f1b49e197541690608595b222d2198771bb9afeb5bca9"}