{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:YCWEINS4WP4NDPGN2RCZMJIZPD","short_pith_number":"pith:YCWEINS4","schema_version":"1.0","canonical_sha256":"c0ac44365cb3f8d1bccdd44596251978d832a0d6c87be586720eceedc84b8ab4","source":{"kind":"arxiv","id":"1107.1403","version":1},"attestation_state":"computed","paper":{"title":"A catalogue of small regular matroids and their Tutte polynomials","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"math.CO","authors_text":"Harald Fripertinger, Marcel Wild","submitted_at":"2011-07-07T14:29:37Z","abstract_excerpt":"A catalogue of all non-isomorphic simple connected regular matroids ${\\cal M}$ of cardinality $n \\leq 15$ is provided on the net. These matroids are given as binary matrix matroids and are sieved from the large pool of all non-isomorphic binary matrix matroids of cardinality $\\leq 15$. For each ${\\cal M}$ its Tutte polynomial is determined by an algorithm based on internal and external base activity."},"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":"1107.1403","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.CO","submitted_at":"2011-07-07T14:29:37Z","cross_cats_sorted":[],"title_canon_sha256":"93deb17bf2c429d37cb9ba46afeb58f21e305df0428fb825506dbaebbace4f7d","abstract_canon_sha256":"415a6ef2179edb098fd0283c58055b9476228b2b310cb1ceeb6a40359dc59cf7"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:18:44.047219Z","signature_b64":"AjLCSGco9awNjCdhzZfC6kyeaAXDm2tcRMWbqJmrZFplsuBqWTVSgqtrdMUa8PP/WGMxYXXIVIqn9D2w/8g9Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c0ac44365cb3f8d1bccdd44596251978d832a0d6c87be586720eceedc84b8ab4","last_reissued_at":"2026-05-18T04:18:44.046666Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:18:44.046666Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A catalogue of small regular matroids and their Tutte polynomials","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"math.CO","authors_text":"Harald Fripertinger, Marcel Wild","submitted_at":"2011-07-07T14:29:37Z","abstract_excerpt":"A catalogue of all non-isomorphic simple connected regular matroids ${\\cal M}$ of cardinality $n \\leq 15$ is provided on the net. These matroids are given as binary matrix matroids and are sieved from the large pool of all non-isomorphic binary matrix matroids of cardinality $\\leq 15$. For each ${\\cal M}$ its Tutte polynomial is determined by an algorithm based on internal and external base activity."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1107.1403","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":"1107.1403","created_at":"2026-05-18T04:18:44.046746+00:00"},{"alias_kind":"arxiv_version","alias_value":"1107.1403v1","created_at":"2026-05-18T04:18:44.046746+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1107.1403","created_at":"2026-05-18T04:18:44.046746+00:00"},{"alias_kind":"pith_short_12","alias_value":"YCWEINS4WP4N","created_at":"2026-05-18T12:26:47.523578+00:00"},{"alias_kind":"pith_short_16","alias_value":"YCWEINS4WP4NDPGN","created_at":"2026-05-18T12:26:47.523578+00:00"},{"alias_kind":"pith_short_8","alias_value":"YCWEINS4","created_at":"2026-05-18T12:26:47.523578+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/YCWEINS4WP4NDPGN2RCZMJIZPD","json":"https://pith.science/pith/YCWEINS4WP4NDPGN2RCZMJIZPD.json","graph_json":"https://pith.science/api/pith-number/YCWEINS4WP4NDPGN2RCZMJIZPD/graph.json","events_json":"https://pith.science/api/pith-number/YCWEINS4WP4NDPGN2RCZMJIZPD/events.json","paper":"https://pith.science/paper/YCWEINS4"},"agent_actions":{"view_html":"https://pith.science/pith/YCWEINS4WP4NDPGN2RCZMJIZPD","download_json":"https://pith.science/pith/YCWEINS4WP4NDPGN2RCZMJIZPD.json","view_paper":"https://pith.science/paper/YCWEINS4","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1107.1403&json=true","fetch_graph":"https://pith.science/api/pith-number/YCWEINS4WP4NDPGN2RCZMJIZPD/graph.json","fetch_events":"https://pith.science/api/pith-number/YCWEINS4WP4NDPGN2RCZMJIZPD/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/YCWEINS4WP4NDPGN2RCZMJIZPD/action/timestamp_anchor","attest_storage":"https://pith.science/pith/YCWEINS4WP4NDPGN2RCZMJIZPD/action/storage_attestation","attest_author":"https://pith.science/pith/YCWEINS4WP4NDPGN2RCZMJIZPD/action/author_attestation","sign_citation":"https://pith.science/pith/YCWEINS4WP4NDPGN2RCZMJIZPD/action/citation_signature","submit_replication":"https://pith.science/pith/YCWEINS4WP4NDPGN2RCZMJIZPD/action/replication_record"}},"created_at":"2026-05-18T04:18:44.046746+00:00","updated_at":"2026-05-18T04:18:44.046746+00:00"}