{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:EHMV24OHFNNVTMXXXO3I5HWC6C","short_pith_number":"pith:EHMV24OH","schema_version":"1.0","canonical_sha256":"21d95d71c72b5b59b2f7bbb68e9ec2f0a6612c7944f756ab5e6b4ea8a7b99cc9","source":{"kind":"arxiv","id":"1902.04724","version":1},"attestation_state":"computed","paper":{"title":"A characterisation of S-box fitness landscapes in cryptography","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.NE","authors_text":"Domagoj Jakobovic, Marcella S. R. Martins, Markus Wagner, Stjepan Picek","submitted_at":"2019-02-13T03:18:14Z","abstract_excerpt":"Substitution Boxes (S-boxes) are nonlinear objects often used in the design of cryptographic algorithms. The design of high quality S-boxes is an interesting problem that attracts a lot of attention. Many attempts have been made in recent years to use heuristics to design S-boxes, but the results were often far from the previously known best obtained ones. Unfortunately, most of the effort went into exploring different algorithms and fitness functions while little attention has been given to the understanding why this problem is so difficult for heuristics. In this paper, we conduct a fitness "},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1902.04724","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NE","submitted_at":"2019-02-13T03:18:14Z","cross_cats_sorted":[],"title_canon_sha256":"e309ebc15665aa75c452d4984c690943a73828673d155441cfcfa9344a9e7cd1","abstract_canon_sha256":"7f5fdfac74857637884485b60475448f512234523b2ba745f27685866e7694fa"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:54:06.180300Z","signature_b64":"1rEVzmh8kvFyUN7FTbjHrKuX0gc0M3C+vUHSHYIlUBCZZtkQ+FQXAeeykB05Ho0SI14b0Csr4PbBqaXu6sVUAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"21d95d71c72b5b59b2f7bbb68e9ec2f0a6612c7944f756ab5e6b4ea8a7b99cc9","last_reissued_at":"2026-05-17T23:54:06.179834Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:54:06.179834Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A characterisation of S-box fitness landscapes in cryptography","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.NE","authors_text":"Domagoj Jakobovic, Marcella S. R. Martins, Markus Wagner, Stjepan Picek","submitted_at":"2019-02-13T03:18:14Z","abstract_excerpt":"Substitution Boxes (S-boxes) are nonlinear objects often used in the design of cryptographic algorithms. The design of high quality S-boxes is an interesting problem that attracts a lot of attention. Many attempts have been made in recent years to use heuristics to design S-boxes, but the results were often far from the previously known best obtained ones. Unfortunately, most of the effort went into exploring different algorithms and fitness functions while little attention has been given to the understanding why this problem is so difficult for heuristics. In this paper, we conduct a fitness "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.04724","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1902.04724","created_at":"2026-05-17T23:54:06.179905+00:00"},{"alias_kind":"arxiv_version","alias_value":"1902.04724v1","created_at":"2026-05-17T23:54:06.179905+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.04724","created_at":"2026-05-17T23:54:06.179905+00:00"},{"alias_kind":"pith_short_12","alias_value":"EHMV24OHFNNV","created_at":"2026-05-18T12:33:15.570797+00:00"},{"alias_kind":"pith_short_16","alias_value":"EHMV24OHFNNVTMXX","created_at":"2026-05-18T12:33:15.570797+00:00"},{"alias_kind":"pith_short_8","alias_value":"EHMV24OH","created_at":"2026-05-18T12:33:15.570797+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/EHMV24OHFNNVTMXXXO3I5HWC6C","json":"https://pith.science/pith/EHMV24OHFNNVTMXXXO3I5HWC6C.json","graph_json":"https://pith.science/api/pith-number/EHMV24OHFNNVTMXXXO3I5HWC6C/graph.json","events_json":"https://pith.science/api/pith-number/EHMV24OHFNNVTMXXXO3I5HWC6C/events.json","paper":"https://pith.science/paper/EHMV24OH"},"agent_actions":{"view_html":"https://pith.science/pith/EHMV24OHFNNVTMXXXO3I5HWC6C","download_json":"https://pith.science/pith/EHMV24OHFNNVTMXXXO3I5HWC6C.json","view_paper":"https://pith.science/paper/EHMV24OH","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1902.04724&json=true","fetch_graph":"https://pith.science/api/pith-number/EHMV24OHFNNVTMXXXO3I5HWC6C/graph.json","fetch_events":"https://pith.science/api/pith-number/EHMV24OHFNNVTMXXXO3I5HWC6C/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/EHMV24OHFNNVTMXXXO3I5HWC6C/action/timestamp_anchor","attest_storage":"https://pith.science/pith/EHMV24OHFNNVTMXXXO3I5HWC6C/action/storage_attestation","attest_author":"https://pith.science/pith/EHMV24OHFNNVTMXXXO3I5HWC6C/action/author_attestation","sign_citation":"https://pith.science/pith/EHMV24OHFNNVTMXXXO3I5HWC6C/action/citation_signature","submit_replication":"https://pith.science/pith/EHMV24OHFNNVTMXXXO3I5HWC6C/action/replication_record"}},"created_at":"2026-05-17T23:54:06.179905+00:00","updated_at":"2026-05-17T23:54:06.179905+00:00"}