{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:24XW4RRG3KWKIH3QFDUREMSBEV","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":"9b79fa6506199b8b7de9b471107c32105033813eb047b38f8917f304e941aa3f","cross_cats_sorted":["cs.PL","cs.SE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CY","submitted_at":"2016-08-12T15:33:54Z","title_canon_sha256":"0bf5511da1337ba4b050b739a8916f2f49df4238af14d70991ecd4335c742878"},"schema_version":"1.0","source":{"id":"1608.03828","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1608.03828","created_at":"2026-05-18T00:51:33Z"},{"alias_kind":"arxiv_version","alias_value":"1608.03828v1","created_at":"2026-05-18T00:51:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1608.03828","created_at":"2026-05-18T00:51:33Z"},{"alias_kind":"pith_short_12","alias_value":"24XW4RRG3KWK","created_at":"2026-05-18T12:29:52Z"},{"alias_kind":"pith_short_16","alias_value":"24XW4RRG3KWKIH3Q","created_at":"2026-05-18T12:29:52Z"},{"alias_kind":"pith_short_8","alias_value":"24XW4RRG","created_at":"2026-05-18T12:29:52Z"}],"graph_snapshots":[{"event_id":"sha256:95090d9160137a8d6394d557a00e4922c7e7aef7373043701481540499536e93","target":"graph","created_at":"2026-05-18T00:51:33Z","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":"An introductory programming course (CS1) is an integral part of any undergraduate curriculum. Due to large number and diverse programming background of students, providing timely and personalised feedback to individual students is a challenging task for any CS1 instructor. The help provided by teaching assistants (typically senior students) is not sufficient as it suffers from unintentional bias and, most of the time, not quick enough.\n  In this paper, we present Prutor, a tutoring system platform to conduct introductory programming courses. Prutor is a cloud-based web application that provide","authors_text":"Amey Karkare, Rajdeep Das, Sumit Gulwani, Umair Z. Ahmed","cross_cats":["cs.PL","cs.SE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CY","submitted_at":"2016-08-12T15:33:54Z","title":"Prutor: A System for Tutoring CS1 and Collecting Student Programs for Analysis"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1608.03828","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:eb9808885c6197ab7ae7b974ed6f76f452574f189f627013450bf1e9e749c44e","target":"record","created_at":"2026-05-18T00:51:33Z","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":"9b79fa6506199b8b7de9b471107c32105033813eb047b38f8917f304e941aa3f","cross_cats_sorted":["cs.PL","cs.SE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CY","submitted_at":"2016-08-12T15:33:54Z","title_canon_sha256":"0bf5511da1337ba4b050b739a8916f2f49df4238af14d70991ecd4335c742878"},"schema_version":"1.0","source":{"id":"1608.03828","kind":"arxiv","version":1}},"canonical_sha256":"d72f6e4626daaca41f7028e912324125486a669bc88de74351ab7dbe6c38b2c9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d72f6e4626daaca41f7028e912324125486a669bc88de74351ab7dbe6c38b2c9","first_computed_at":"2026-05-18T00:51:33.988997Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:51:33.988997Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kLrcVH9ltvlvHJ9qD0CnqVtKnOzh66zCtiOjq2QKP3mwm0U7lpLyhuJBl7mFvScJ/NofAWRpW6mwgzb27lkBCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:51:33.989447Z","signed_message":"canonical_sha256_bytes"},"source_id":"1608.03828","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:eb9808885c6197ab7ae7b974ed6f76f452574f189f627013450bf1e9e749c44e","sha256:95090d9160137a8d6394d557a00e4922c7e7aef7373043701481540499536e93"],"state_sha256":"53ae9d0a7f046ce08d01384196484cca06df58c252188133d0b8ceaf487cc6f7"}