{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:VQU73UYY42TLWEFL5QEXOC2XM5","short_pith_number":"pith:VQU73UYY","schema_version":"1.0","canonical_sha256":"ac29fdd318e6a6bb10abec09770b5767419774d894bb22777dfb9d0d0901d785","source":{"kind":"arxiv","id":"1307.0215","version":2},"attestation_state":"computed","paper":{"title":"Helix surfaces in the special linear group","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"math.DG","authors_text":"A. Passos Passamani, I.I. Onnis, S. Montaldo","submitted_at":"2013-06-30T16:00:32Z","abstract_excerpt":"We characterize helix surfaces (constant angle surfaces) in the special linear group $\\mathrm{SL}(2,\\r)$. In particular, we give an explicit local description of these surfaces in terms of a suitable curve and a 1-parameter family of isometries of $\\mathrm{SL}(2,\\r)$."},"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":"1307.0215","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.DG","submitted_at":"2013-06-30T16:00:32Z","cross_cats_sorted":[],"title_canon_sha256":"58c3ce984b17f08f2d57e904a6513d0590b7ac0e1788cc458c6ee44dbc776e0a","abstract_canon_sha256":"373bb169d7e9f422126fa41b764ab246cb3199695936ef53e205db47ad27b996"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:28:40.905074Z","signature_b64":"liSCmLtG8EfzlsVTANMrnAwQA6YCN2wIf7v5vWGcQD5f2+qMs/EGTpOdIpAfBKSwmJlhXfD1PVhvsiD4Y2TNBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ac29fdd318e6a6bb10abec09770b5767419774d894bb22777dfb9d0d0901d785","last_reissued_at":"2026-05-18T02:28:40.904603Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:28:40.904603Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Helix surfaces in the special linear group","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"math.DG","authors_text":"A. Passos Passamani, I.I. Onnis, S. Montaldo","submitted_at":"2013-06-30T16:00:32Z","abstract_excerpt":"We characterize helix surfaces (constant angle surfaces) in the special linear group $\\mathrm{SL}(2,\\r)$. In particular, we give an explicit local description of these surfaces in terms of a suitable curve and a 1-parameter family of isometries of $\\mathrm{SL}(2,\\r)$."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.0215","kind":"arxiv","version":2},"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":"1307.0215","created_at":"2026-05-18T02:28:40.904665+00:00"},{"alias_kind":"arxiv_version","alias_value":"1307.0215v2","created_at":"2026-05-18T02:28:40.904665+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.0215","created_at":"2026-05-18T02:28:40.904665+00:00"},{"alias_kind":"pith_short_12","alias_value":"VQU73UYY42TL","created_at":"2026-05-18T12:28:04.890932+00:00"},{"alias_kind":"pith_short_16","alias_value":"VQU73UYY42TLWEFL","created_at":"2026-05-18T12:28:04.890932+00:00"},{"alias_kind":"pith_short_8","alias_value":"VQU73UYY","created_at":"2026-05-18T12:28:04.890932+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/VQU73UYY42TLWEFL5QEXOC2XM5","json":"https://pith.science/pith/VQU73UYY42TLWEFL5QEXOC2XM5.json","graph_json":"https://pith.science/api/pith-number/VQU73UYY42TLWEFL5QEXOC2XM5/graph.json","events_json":"https://pith.science/api/pith-number/VQU73UYY42TLWEFL5QEXOC2XM5/events.json","paper":"https://pith.science/paper/VQU73UYY"},"agent_actions":{"view_html":"https://pith.science/pith/VQU73UYY42TLWEFL5QEXOC2XM5","download_json":"https://pith.science/pith/VQU73UYY42TLWEFL5QEXOC2XM5.json","view_paper":"https://pith.science/paper/VQU73UYY","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1307.0215&json=true","fetch_graph":"https://pith.science/api/pith-number/VQU73UYY42TLWEFL5QEXOC2XM5/graph.json","fetch_events":"https://pith.science/api/pith-number/VQU73UYY42TLWEFL5QEXOC2XM5/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/VQU73UYY42TLWEFL5QEXOC2XM5/action/timestamp_anchor","attest_storage":"https://pith.science/pith/VQU73UYY42TLWEFL5QEXOC2XM5/action/storage_attestation","attest_author":"https://pith.science/pith/VQU73UYY42TLWEFL5QEXOC2XM5/action/author_attestation","sign_citation":"https://pith.science/pith/VQU73UYY42TLWEFL5QEXOC2XM5/action/citation_signature","submit_replication":"https://pith.science/pith/VQU73UYY42TLWEFL5QEXOC2XM5/action/replication_record"}},"created_at":"2026-05-18T02:28:40.904665+00:00","updated_at":"2026-05-18T02:28:40.904665+00:00"}