{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2024:YLLGPBONHRGVHDHTGKD4LOK7B6","short_pith_number":"pith:YLLGPBON","schema_version":"1.0","canonical_sha256":"c2d66785cd3c4d538cf33287c5b95f0f9660167337229a3ac43adc84dc445cf6","source":{"kind":"arxiv","id":"2402.09809","version":2},"attestation_state":"computed","paper":{"title":"Effective and Scalable Math Support: Evidence on the Impact of an AI- Tutor on Math Achievement in Ghana","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.HC","authors_text":"Amanda Lee, Hannah Horne-Robinson, Nessie Kozhakhmetova, Owen Henkel","submitted_at":"2024-02-15T09:15:09Z","abstract_excerpt":"This study evaluates the impact of Rori, an AI powered conversational math tutor accessible via WhatsApp, on the math performance of approximately 1,000 students in grades 3-9 across 11 schools in Ghana. Each school was assigned to a treatment group or control group; the students in the control group continued their regular math instruction, while students in the treatment group engaged with Rori, for two 30-minute sessions per week over 8 months in addition to regular math instruction. We find that the math growth scores were substantially higher for the treatment group with an effect size of"},"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":"2402.09809","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.HC","submitted_at":"2024-02-15T09:15:09Z","cross_cats_sorted":[],"title_canon_sha256":"e3e0f17e3b266b3c06df2834a9a29a11e2bfed8e41caf0432f75d21acc71f408","abstract_canon_sha256":"2df7641658877a816621e986f1205ec88a16e769b25921cd3005559ae9096a72"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:15:45.315865Z","signature_b64":"oic+y/H2UjbB1EUnmBnwpjsDQX2aHGnrYybk+HIpttu6U1h9APipEDOr/xYsqJ2qpJoiNOZ8oc1sTGGcwIbGBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c2d66785cd3c4d538cf33287c5b95f0f9660167337229a3ac43adc84dc445cf6","last_reissued_at":"2026-07-05T08:15:45.315378Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:15:45.315378Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Effective and Scalable Math Support: Evidence on the Impact of an AI- Tutor on Math Achievement in Ghana","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.HC","authors_text":"Amanda Lee, Hannah Horne-Robinson, Nessie Kozhakhmetova, Owen Henkel","submitted_at":"2024-02-15T09:15:09Z","abstract_excerpt":"This study evaluates the impact of Rori, an AI powered conversational math tutor accessible via WhatsApp, on the math performance of approximately 1,000 students in grades 3-9 across 11 schools in Ghana. Each school was assigned to a treatment group or control group; the students in the control group continued their regular math instruction, while students in the treatment group engaged with Rori, for two 30-minute sessions per week over 8 months in addition to regular math instruction. We find that the math growth scores were substantially higher for the treatment group with an effect size of"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2402.09809","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2402.09809/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2402.09809","created_at":"2026-07-05T08:15:45.315441+00:00"},{"alias_kind":"arxiv_version","alias_value":"2402.09809v2","created_at":"2026-07-05T08:15:45.315441+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2402.09809","created_at":"2026-07-05T08:15:45.315441+00:00"},{"alias_kind":"pith_short_12","alias_value":"YLLGPBONHRGV","created_at":"2026-07-05T08:15:45.315441+00:00"},{"alias_kind":"pith_short_16","alias_value":"YLLGPBONHRGVHDHT","created_at":"2026-07-05T08:15:45.315441+00:00"},{"alias_kind":"pith_short_8","alias_value":"YLLGPBON","created_at":"2026-07-05T08:15:45.315441+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2602.16571","citing_title":"Utility-Preserving De-Identification for Math Tutoring: Investigating Numeric Ambiguity in the MathEd-PII Benchmark Dataset","ref_index":16,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/YLLGPBONHRGVHDHTGKD4LOK7B6","json":"https://pith.science/pith/YLLGPBONHRGVHDHTGKD4LOK7B6.json","graph_json":"https://pith.science/api/pith-number/YLLGPBONHRGVHDHTGKD4LOK7B6/graph.json","events_json":"https://pith.science/api/pith-number/YLLGPBONHRGVHDHTGKD4LOK7B6/events.json","paper":"https://pith.science/paper/YLLGPBON"},"agent_actions":{"view_html":"https://pith.science/pith/YLLGPBONHRGVHDHTGKD4LOK7B6","download_json":"https://pith.science/pith/YLLGPBONHRGVHDHTGKD4LOK7B6.json","view_paper":"https://pith.science/paper/YLLGPBON","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2402.09809&json=true","fetch_graph":"https://pith.science/api/pith-number/YLLGPBONHRGVHDHTGKD4LOK7B6/graph.json","fetch_events":"https://pith.science/api/pith-number/YLLGPBONHRGVHDHTGKD4LOK7B6/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/YLLGPBONHRGVHDHTGKD4LOK7B6/action/timestamp_anchor","attest_storage":"https://pith.science/pith/YLLGPBONHRGVHDHTGKD4LOK7B6/action/storage_attestation","attest_author":"https://pith.science/pith/YLLGPBONHRGVHDHTGKD4LOK7B6/action/author_attestation","sign_citation":"https://pith.science/pith/YLLGPBONHRGVHDHTGKD4LOK7B6/action/citation_signature","submit_replication":"https://pith.science/pith/YLLGPBONHRGVHDHTGKD4LOK7B6/action/replication_record"}},"created_at":"2026-07-05T08:15:45.315441+00:00","updated_at":"2026-07-05T08:15:45.315441+00:00"}