{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:IT3FIXHUB7FIO2HALCXQC4YPUX","short_pith_number":"pith:IT3FIXHU","canonical_record":{"source":{"id":"1810.04119","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.NE","submitted_at":"2018-10-09T16:49:04Z","cross_cats_sorted":[],"title_canon_sha256":"458d663951d6d9a2b16caf22b5b09e44e6604c1c5e2b1c1c8007a6e1f0e485bf","abstract_canon_sha256":"7cb2915445f23cadeaff68502b8b05b27cbfac946824723484c878852c8a6b1c"},"schema_version":"1.0"},"canonical_sha256":"44f6545cf40fca8768e058af01730fa5f51ef163275d3e46b2a70a2ba51bcac1","source":{"kind":"arxiv","id":"1810.04119","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.04119","created_at":"2026-05-18T00:03:42Z"},{"alias_kind":"arxiv_version","alias_value":"1810.04119v1","created_at":"2026-05-18T00:03:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.04119","created_at":"2026-05-18T00:03:42Z"},{"alias_kind":"pith_short_12","alias_value":"IT3FIXHUB7FI","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"IT3FIXHUB7FIO2HA","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"IT3FIXHU","created_at":"2026-05-18T12:32:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:IT3FIXHUB7FIO2HALCXQC4YPUX","target":"record","payload":{"canonical_record":{"source":{"id":"1810.04119","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.NE","submitted_at":"2018-10-09T16:49:04Z","cross_cats_sorted":[],"title_canon_sha256":"458d663951d6d9a2b16caf22b5b09e44e6604c1c5e2b1c1c8007a6e1f0e485bf","abstract_canon_sha256":"7cb2915445f23cadeaff68502b8b05b27cbfac946824723484c878852c8a6b1c"},"schema_version":"1.0"},"canonical_sha256":"44f6545cf40fca8768e058af01730fa5f51ef163275d3e46b2a70a2ba51bcac1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:03:42.244492Z","signature_b64":"v286VZTVwzUONTY3XNKgjrD1HBuYsWtVf8WB9aiEv1MhjLxvwMW+zOmHZFg8lCJenWw4nmIm5sF1SwzOZK7WBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"44f6545cf40fca8768e058af01730fa5f51ef163275d3e46b2a70a2ba51bcac1","last_reissued_at":"2026-05-18T00:03:42.243999Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:03:42.243999Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1810.04119","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":"2026-05-18T00:03:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3rAy2xXc+Rp9B0YguyUOUZOTnqs9C/SQxpKjEYii8V1EmwSUicV2eXabIveRqNNia9EYFnxPn4+HHcVMzQ0fAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T20:01:17.954253Z"},"content_sha256":"9f09188e293938f9b351e81f1c697a7ac10116252ab6ed475f9388e645b7cc4c","schema_version":"1.0","event_id":"sha256:9f09188e293938f9b351e81f1c697a7ac10116252ab6ed475f9388e645b7cc4c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:IT3FIXHUB7FIO2HALCXQC4YPUX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Positional Cartesian Genetic Programming","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.NE","authors_text":"DG Wilson, Herv\\'e Luga, Julian F. Miller, Sylvain Cussat-Blanc","submitted_at":"2018-10-09T16:49:04Z","abstract_excerpt":"Cartesian Genetic Programming (CGP) has many modifications across a variety of implementations, such as recursive connections and node weights. Alternative genetic operators have also been proposed for CGP, but have not been fully studied. In this work, we present a new form of genetic programming based on a floating point representation. In this new form of CGP, called Positional CGP, node positions are evolved. This allows for the evaluation of many different genetic operators while allowing for previous CGP improvements like recurrency. Using nine benchmark problems from three different cla"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.04119","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":"2026-05-18T00:03:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xvKe9EOU05n6fxGqLdE5HJc44h8UKh/z+GBUofIIEOZLpcn1T9fFQJ3B18aen2bSJ6wS67jJLAApjwL1rn8qBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T20:01:17.954632Z"},"content_sha256":"9a2cf9de28012d7b9c4127b10ffcd3b175060fc39f374d9f281ef5a16c887b0a","schema_version":"1.0","event_id":"sha256:9a2cf9de28012d7b9c4127b10ffcd3b175060fc39f374d9f281ef5a16c887b0a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IT3FIXHUB7FIO2HALCXQC4YPUX/bundle.json","state_url":"https://pith.science/pith/IT3FIXHUB7FIO2HALCXQC4YPUX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IT3FIXHUB7FIO2HALCXQC4YPUX/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":"2026-06-07T20:01:17Z","links":{"resolver":"https://pith.science/pith/IT3FIXHUB7FIO2HALCXQC4YPUX","bundle":"https://pith.science/pith/IT3FIXHUB7FIO2HALCXQC4YPUX/bundle.json","state":"https://pith.science/pith/IT3FIXHUB7FIO2HALCXQC4YPUX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IT3FIXHUB7FIO2HALCXQC4YPUX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:IT3FIXHUB7FIO2HALCXQC4YPUX","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":"7cb2915445f23cadeaff68502b8b05b27cbfac946824723484c878852c8a6b1c","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.NE","submitted_at":"2018-10-09T16:49:04Z","title_canon_sha256":"458d663951d6d9a2b16caf22b5b09e44e6604c1c5e2b1c1c8007a6e1f0e485bf"},"schema_version":"1.0","source":{"id":"1810.04119","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.04119","created_at":"2026-05-18T00:03:42Z"},{"alias_kind":"arxiv_version","alias_value":"1810.04119v1","created_at":"2026-05-18T00:03:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.04119","created_at":"2026-05-18T00:03:42Z"},{"alias_kind":"pith_short_12","alias_value":"IT3FIXHUB7FI","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"IT3FIXHUB7FIO2HA","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"IT3FIXHU","created_at":"2026-05-18T12:32:31Z"}],"graph_snapshots":[{"event_id":"sha256:9a2cf9de28012d7b9c4127b10ffcd3b175060fc39f374d9f281ef5a16c887b0a","target":"graph","created_at":"2026-05-18T00:03:42Z","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":"Cartesian Genetic Programming (CGP) has many modifications across a variety of implementations, such as recursive connections and node weights. Alternative genetic operators have also been proposed for CGP, but have not been fully studied. In this work, we present a new form of genetic programming based on a floating point representation. In this new form of CGP, called Positional CGP, node positions are evolved. This allows for the evaluation of many different genetic operators while allowing for previous CGP improvements like recurrency. Using nine benchmark problems from three different cla","authors_text":"DG Wilson, Herv\\'e Luga, Julian F. Miller, Sylvain Cussat-Blanc","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.NE","submitted_at":"2018-10-09T16:49:04Z","title":"Positional Cartesian Genetic Programming"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.04119","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":"sha256:9f09188e293938f9b351e81f1c697a7ac10116252ab6ed475f9388e645b7cc4c","target":"record","created_at":"2026-05-18T00:03:42Z","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":"7cb2915445f23cadeaff68502b8b05b27cbfac946824723484c878852c8a6b1c","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.NE","submitted_at":"2018-10-09T16:49:04Z","title_canon_sha256":"458d663951d6d9a2b16caf22b5b09e44e6604c1c5e2b1c1c8007a6e1f0e485bf"},"schema_version":"1.0","source":{"id":"1810.04119","kind":"arxiv","version":1}},"canonical_sha256":"44f6545cf40fca8768e058af01730fa5f51ef163275d3e46b2a70a2ba51bcac1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"44f6545cf40fca8768e058af01730fa5f51ef163275d3e46b2a70a2ba51bcac1","first_computed_at":"2026-05-18T00:03:42.243999Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:03:42.243999Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"v286VZTVwzUONTY3XNKgjrD1HBuYsWtVf8WB9aiEv1MhjLxvwMW+zOmHZFg8lCJenWw4nmIm5sF1SwzOZK7WBg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:03:42.244492Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.04119","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9f09188e293938f9b351e81f1c697a7ac10116252ab6ed475f9388e645b7cc4c","sha256:9a2cf9de28012d7b9c4127b10ffcd3b175060fc39f374d9f281ef5a16c887b0a"],"state_sha256":"78749d85985b9e4dc415fdc1733ea99f62ff5e98b3dd3c8e1dbffbe6b7383f3d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hu6DKyZtbPKa93f323Y6iaA5P7qoOlaOqNgaIWmLuVOqoosLaMadnfva/AafKGleNGwSHjry12zv2CPKoL4HDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T20:01:17.957835Z","bundle_sha256":"9b77a2eccee593ce485b1beff61123e15b57633716da9abf8a71e77936769f09"}}