{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:327AXV6KTGUPY5XK4LTU6EM5WP","short_pith_number":"pith:327AXV6K","canonical_record":{"source":{"id":"1308.2307","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CE","submitted_at":"2013-08-10T13:07:07Z","cross_cats_sorted":["cs.NE"],"title_canon_sha256":"e860255f271d43e9641d9ffd4e21761fac6f4a1edb7e0b04788f5bca574cd70d","abstract_canon_sha256":"c6d8840985920094e2a82760be3f38d563b7998e1aacff7304371d7426f4dff9"},"schema_version":"1.0"},"canonical_sha256":"debe0bd7ca99a8fc76eae2e74f119db3eb34ed2976df2d772e9627e32e76949d","source":{"kind":"arxiv","id":"1308.2307","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.2307","created_at":"2026-05-18T03:16:07Z"},{"alias_kind":"arxiv_version","alias_value":"1308.2307v1","created_at":"2026-05-18T03:16:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.2307","created_at":"2026-05-18T03:16:07Z"},{"alias_kind":"pith_short_12","alias_value":"327AXV6KTGUP","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_16","alias_value":"327AXV6KTGUPY5XK","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_8","alias_value":"327AXV6K","created_at":"2026-05-18T12:27:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:327AXV6KTGUPY5XK4LTU6EM5WP","target":"record","payload":{"canonical_record":{"source":{"id":"1308.2307","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CE","submitted_at":"2013-08-10T13:07:07Z","cross_cats_sorted":["cs.NE"],"title_canon_sha256":"e860255f271d43e9641d9ffd4e21761fac6f4a1edb7e0b04788f5bca574cd70d","abstract_canon_sha256":"c6d8840985920094e2a82760be3f38d563b7998e1aacff7304371d7426f4dff9"},"schema_version":"1.0"},"canonical_sha256":"debe0bd7ca99a8fc76eae2e74f119db3eb34ed2976df2d772e9627e32e76949d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:16:07.887541Z","signature_b64":"fxq4qN28lcGO7V7JnLu8KGAu2Yx3K7NDzAWL7qSs2oNn3YiJCEhFfjEUfQAqu7YDp7opx7BZlbu3IrbSKL4bBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"debe0bd7ca99a8fc76eae2e74f119db3eb34ed2976df2d772e9627e32e76949d","last_reissued_at":"2026-05-18T03:16:07.887046Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:16:07.887046Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1308.2307","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":"2026-05-18T03:16:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jzPm6PLypapYLBpA/ewW0A1pH4oS9aOrnEfs1BN4sPyPK78nm8HWX2ourDViLib8atZ4mmrhaC311mxL/OdzBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T19:05:52.519113Z"},"content_sha256":"da0a723f0f97d9dfa9e3d07f52ee6407b918bc7150ba14a1e3fcd83f259fc034","schema_version":"1.0","event_id":"sha256:da0a723f0f97d9dfa9e3d07f52ee6407b918bc7150ba14a1e3fcd83f259fc034"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:327AXV6KTGUPY5XK4LTU6EM5WP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Finite Element Model Updating Using Fish School Search Optimization Method","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.NE"],"primary_cat":"cs.CE","authors_text":"F. De Lima Neto, I. Boulkabeit, L. Mthembu, T. Marwala","submitted_at":"2013-08-10T13:07:07Z","abstract_excerpt":"A recent nature inspired optimization algorithm, Fish School Search (FSS) is applied to the finite element model (FEM) updating problem. This method is tested on a GARTEUR SM-AG19 aeroplane structure. The results of this algorithm are compared with two other metaheuristic algorithms; Genetic Algorithm (GA) and Particle Swarm Optimization (PSO). It is observed that on average, the FSS and PSO algorithms give more accurate results than the GA. A minor modification to the FSS is proposed. This modification improves the performance of FSS on the FEM updating problem which has a constrained search "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.2307","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":"2026-05-18T03:16:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qYSzVDWGYMo4KsbYf3/XW6vAIo66QIMwyWrDntnXv8eJFspiPs/nQfnzgZz3nPIMEmIMPJibQoF8IRX+VxiTAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T19:05:52.519840Z"},"content_sha256":"203343edd3f23e3557c5cdcc042eedc21916bf1a3eff7a59115f538775b7e2f3","schema_version":"1.0","event_id":"sha256:203343edd3f23e3557c5cdcc042eedc21916bf1a3eff7a59115f538775b7e2f3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/327AXV6KTGUPY5XK4LTU6EM5WP/bundle.json","state_url":"https://pith.science/pith/327AXV6KTGUPY5XK4LTU6EM5WP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/327AXV6KTGUPY5XK4LTU6EM5WP/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":"2026-06-08T19:05:52Z","links":{"resolver":"https://pith.science/pith/327AXV6KTGUPY5XK4LTU6EM5WP","bundle":"https://pith.science/pith/327AXV6KTGUPY5XK4LTU6EM5WP/bundle.json","state":"https://pith.science/pith/327AXV6KTGUPY5XK4LTU6EM5WP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/327AXV6KTGUPY5XK4LTU6EM5WP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:327AXV6KTGUPY5XK4LTU6EM5WP","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":"c6d8840985920094e2a82760be3f38d563b7998e1aacff7304371d7426f4dff9","cross_cats_sorted":["cs.NE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CE","submitted_at":"2013-08-10T13:07:07Z","title_canon_sha256":"e860255f271d43e9641d9ffd4e21761fac6f4a1edb7e0b04788f5bca574cd70d"},"schema_version":"1.0","source":{"id":"1308.2307","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.2307","created_at":"2026-05-18T03:16:07Z"},{"alias_kind":"arxiv_version","alias_value":"1308.2307v1","created_at":"2026-05-18T03:16:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.2307","created_at":"2026-05-18T03:16:07Z"},{"alias_kind":"pith_short_12","alias_value":"327AXV6KTGUP","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_16","alias_value":"327AXV6KTGUPY5XK","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_8","alias_value":"327AXV6K","created_at":"2026-05-18T12:27:32Z"}],"graph_snapshots":[{"event_id":"sha256:203343edd3f23e3557c5cdcc042eedc21916bf1a3eff7a59115f538775b7e2f3","target":"graph","created_at":"2026-05-18T03:16:07Z","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"},"paper":{"abstract_excerpt":"A recent nature inspired optimization algorithm, Fish School Search (FSS) is applied to the finite element model (FEM) updating problem. This method is tested on a GARTEUR SM-AG19 aeroplane structure. The results of this algorithm are compared with two other metaheuristic algorithms; Genetic Algorithm (GA) and Particle Swarm Optimization (PSO). It is observed that on average, the FSS and PSO algorithms give more accurate results than the GA. A minor modification to the FSS is proposed. This modification improves the performance of FSS on the FEM updating problem which has a constrained search ","authors_text":"F. De Lima Neto, I. Boulkabeit, L. Mthembu, T. Marwala","cross_cats":["cs.NE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CE","submitted_at":"2013-08-10T13:07:07Z","title":"Finite Element Model Updating Using Fish School Search Optimization Method"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.2307","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:da0a723f0f97d9dfa9e3d07f52ee6407b918bc7150ba14a1e3fcd83f259fc034","target":"record","created_at":"2026-05-18T03:16:07Z","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":"c6d8840985920094e2a82760be3f38d563b7998e1aacff7304371d7426f4dff9","cross_cats_sorted":["cs.NE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CE","submitted_at":"2013-08-10T13:07:07Z","title_canon_sha256":"e860255f271d43e9641d9ffd4e21761fac6f4a1edb7e0b04788f5bca574cd70d"},"schema_version":"1.0","source":{"id":"1308.2307","kind":"arxiv","version":1}},"canonical_sha256":"debe0bd7ca99a8fc76eae2e74f119db3eb34ed2976df2d772e9627e32e76949d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"debe0bd7ca99a8fc76eae2e74f119db3eb34ed2976df2d772e9627e32e76949d","first_computed_at":"2026-05-18T03:16:07.887046Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:16:07.887046Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fxq4qN28lcGO7V7JnLu8KGAu2Yx3K7NDzAWL7qSs2oNn3YiJCEhFfjEUfQAqu7YDp7opx7BZlbu3IrbSKL4bBg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:16:07.887541Z","signed_message":"canonical_sha256_bytes"},"source_id":"1308.2307","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:da0a723f0f97d9dfa9e3d07f52ee6407b918bc7150ba14a1e3fcd83f259fc034","sha256:203343edd3f23e3557c5cdcc042eedc21916bf1a3eff7a59115f538775b7e2f3"],"state_sha256":"e8f26dad79e3e484a03e5ef6f4c06d49da7daee82db8a5971223702c7360b359"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oMK0+SlqRY/IE4iHhQrqrpkJIfuMqp5nnlLpNugS1nEv1h9CxseofmRqWVk5z2z2OHVwj0RLTtlmcGLIJ39LCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T19:05:52.523436Z","bundle_sha256":"1f42855bc006035e094a64243db0a947e951c53faa3364e304e482c0b92234b4"}}