{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:YYQWW3IGDIZVWOAG3L3ET3UINS","short_pith_number":"pith:YYQWW3IG","canonical_record":{"source":{"id":"2104.07763","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CY","submitted_at":"2021-04-15T20:40:24Z","cross_cats_sorted":["cs.AI","cs.CL","cs.HC"],"title_canon_sha256":"54622ad8571636a057ffbb498102f474c11f753f58bdfa13f36ee0c946d7f0e7","abstract_canon_sha256":"b59500c9bd990f2080884522e8ce8f85fdbbfe6ee0a690b8a211f0da6f917e97"},"schema_version":"1.0"},"canonical_sha256":"c6216b6d061a335b3806daf649ee886c8991830614110757021c20b4f6f3ff01","source":{"kind":"arxiv","id":"2104.07763","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2104.07763","created_at":"2026-07-05T02:32:37Z"},{"alias_kind":"arxiv_version","alias_value":"2104.07763v1","created_at":"2026-07-05T02:32:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2104.07763","created_at":"2026-07-05T02:32:37Z"},{"alias_kind":"pith_short_12","alias_value":"YYQWW3IGDIZV","created_at":"2026-07-05T02:32:37Z"},{"alias_kind":"pith_short_16","alias_value":"YYQWW3IGDIZVWOAG","created_at":"2026-07-05T02:32:37Z"},{"alias_kind":"pith_short_8","alias_value":"YYQWW3IG","created_at":"2026-07-05T02:32:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:YYQWW3IGDIZVWOAG3L3ET3UINS","target":"record","payload":{"canonical_record":{"source":{"id":"2104.07763","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CY","submitted_at":"2021-04-15T20:40:24Z","cross_cats_sorted":["cs.AI","cs.CL","cs.HC"],"title_canon_sha256":"54622ad8571636a057ffbb498102f474c11f753f58bdfa13f36ee0c946d7f0e7","abstract_canon_sha256":"b59500c9bd990f2080884522e8ce8f85fdbbfe6ee0a690b8a211f0da6f917e97"},"schema_version":"1.0"},"canonical_sha256":"c6216b6d061a335b3806daf649ee886c8991830614110757021c20b4f6f3ff01","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:32:37.475962Z","signature_b64":"cTycuo8GYOpQ8GXGIPl9iuH1UkFdNQDZAatcajYsqwq/rWEOPGRrocRG/QwWDIAMV7a+J2awkj11l0PrgI39Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c6216b6d061a335b3806daf649ee886c8991830614110757021c20b4f6f3ff01","last_reissued_at":"2026-07-05T02:32:37.475509Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:32:37.475509Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2104.07763","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T02:32:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LvNaSc4jPFpkCQ1LLciEarE799UEVQl+KZklp/XFTO95W5JJYE+Uml8FRjZSzR3MGM+Afu6nEfdFQ8X3a2Z+Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T09:23:29.339137Z"},"content_sha256":"868765694bea8945da84f0610de6a05d9ad8a9c56eb81cb99a262cabf70fe798","schema_version":"1.0","event_id":"sha256:868765694bea8945da84f0610de6a05d9ad8a9c56eb81cb99a262cabf70fe798"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:YYQWW3IGDIZVWOAG3L3ET3UINS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Comparative Study of Learning Outcomes for Online Learning Platforms","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.AI","cs.CL","cs.HC"],"primary_cat":"cs.CY","authors_text":"Adela Matajova, Ansona Onyi Ching, Antoine Frau, Anush Stepanyan, Ariella Smofsky, Dung Do Vu, Ekaterina Kochmar, Farid Faraji, Francois St-Hilaire, Iulian Vlad Serban, Joseph Potochny, Laurent Charlin, Muhammad Shayan, Nathan Burns, Neroli Ko, Robert Belfer, Sabina Elkins, Vincent Pavero, Yoshua Bengio","submitted_at":"2021-04-15T20:40:24Z","abstract_excerpt":"Personalization and active learning are key aspects to successful learning. These aspects are important to address in intelligent educational applications, as they help systems to adapt and close the gap between students with varying abilities, which becomes increasingly important in the context of online and distance learning. We run a comparative head-to-head study of learning outcomes for two popular online learning platforms: Platform A, which follows a traditional model delivering content over a series of lecture videos and multiple-choice quizzes, and Platform B, which creates a personal"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2104.07763","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2104.07763/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T02:32:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PW1AvJRfYrji27Jf1+zCy6aF/2BrZu2jhIzyuudNWpcsnj7asCQXZAHqr5TGtmmJ9ZhFv5DdBYMCuCxrD7LsDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T09:23:29.339540Z"},"content_sha256":"484c07919fd74ad4961e9db10f73e60ad58d1fe60eff4ea3158ef48946853d5d","schema_version":"1.0","event_id":"sha256:484c07919fd74ad4961e9db10f73e60ad58d1fe60eff4ea3158ef48946853d5d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YYQWW3IGDIZVWOAG3L3ET3UINS/bundle.json","state_url":"https://pith.science/pith/YYQWW3IGDIZVWOAG3L3ET3UINS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YYQWW3IGDIZVWOAG3L3ET3UINS/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-07-07T09:23:29Z","links":{"resolver":"https://pith.science/pith/YYQWW3IGDIZVWOAG3L3ET3UINS","bundle":"https://pith.science/pith/YYQWW3IGDIZVWOAG3L3ET3UINS/bundle.json","state":"https://pith.science/pith/YYQWW3IGDIZVWOAG3L3ET3UINS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YYQWW3IGDIZVWOAG3L3ET3UINS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:YYQWW3IGDIZVWOAG3L3ET3UINS","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":"b59500c9bd990f2080884522e8ce8f85fdbbfe6ee0a690b8a211f0da6f917e97","cross_cats_sorted":["cs.AI","cs.CL","cs.HC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CY","submitted_at":"2021-04-15T20:40:24Z","title_canon_sha256":"54622ad8571636a057ffbb498102f474c11f753f58bdfa13f36ee0c946d7f0e7"},"schema_version":"1.0","source":{"id":"2104.07763","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2104.07763","created_at":"2026-07-05T02:32:37Z"},{"alias_kind":"arxiv_version","alias_value":"2104.07763v1","created_at":"2026-07-05T02:32:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2104.07763","created_at":"2026-07-05T02:32:37Z"},{"alias_kind":"pith_short_12","alias_value":"YYQWW3IGDIZV","created_at":"2026-07-05T02:32:37Z"},{"alias_kind":"pith_short_16","alias_value":"YYQWW3IGDIZVWOAG","created_at":"2026-07-05T02:32:37Z"},{"alias_kind":"pith_short_8","alias_value":"YYQWW3IG","created_at":"2026-07-05T02:32:37Z"}],"graph_snapshots":[{"event_id":"sha256:484c07919fd74ad4961e9db10f73e60ad58d1fe60eff4ea3158ef48946853d5d","target":"graph","created_at":"2026-07-05T02:32:37Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2104.07763/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Personalization and active learning are key aspects to successful learning. These aspects are important to address in intelligent educational applications, as they help systems to adapt and close the gap between students with varying abilities, which becomes increasingly important in the context of online and distance learning. We run a comparative head-to-head study of learning outcomes for two popular online learning platforms: Platform A, which follows a traditional model delivering content over a series of lecture videos and multiple-choice quizzes, and Platform B, which creates a personal","authors_text":"Adela Matajova, Ansona Onyi Ching, Antoine Frau, Anush Stepanyan, Ariella Smofsky, Dung Do Vu, Ekaterina Kochmar, Farid Faraji, Francois St-Hilaire, Iulian Vlad Serban, Joseph Potochny, Laurent Charlin, Muhammad Shayan, Nathan Burns, Neroli Ko, Robert Belfer, Sabina Elkins, Vincent Pavero, Yoshua Bengio","cross_cats":["cs.AI","cs.CL","cs.HC"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CY","submitted_at":"2021-04-15T20:40:24Z","title":"Comparative Study of Learning Outcomes for Online Learning Platforms"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2104.07763","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":"sha256:868765694bea8945da84f0610de6a05d9ad8a9c56eb81cb99a262cabf70fe798","target":"record","created_at":"2026-07-05T02:32:37Z","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":"b59500c9bd990f2080884522e8ce8f85fdbbfe6ee0a690b8a211f0da6f917e97","cross_cats_sorted":["cs.AI","cs.CL","cs.HC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CY","submitted_at":"2021-04-15T20:40:24Z","title_canon_sha256":"54622ad8571636a057ffbb498102f474c11f753f58bdfa13f36ee0c946d7f0e7"},"schema_version":"1.0","source":{"id":"2104.07763","kind":"arxiv","version":1}},"canonical_sha256":"c6216b6d061a335b3806daf649ee886c8991830614110757021c20b4f6f3ff01","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c6216b6d061a335b3806daf649ee886c8991830614110757021c20b4f6f3ff01","first_computed_at":"2026-07-05T02:32:37.475509Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:32:37.475509Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cTycuo8GYOpQ8GXGIPl9iuH1UkFdNQDZAatcajYsqwq/rWEOPGRrocRG/QwWDIAMV7a+J2awkj11l0PrgI39Dw==","signature_status":"signed_v1","signed_at":"2026-07-05T02:32:37.475962Z","signed_message":"canonical_sha256_bytes"},"source_id":"2104.07763","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:868765694bea8945da84f0610de6a05d9ad8a9c56eb81cb99a262cabf70fe798","sha256:484c07919fd74ad4961e9db10f73e60ad58d1fe60eff4ea3158ef48946853d5d"],"state_sha256":"474843a8b0e1bb6e34c7cc5b36b8df4a6c21925387ce3c64f41efecad20031f8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Qx1f43SVXMW/EteUuDQD669YPg7rHyWv938mpgbKVRjK2al4NdrR5cOmvvYt9Ir1L0c/0g8ZOV90g/oV9RZ2DQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T09:23:29.341526Z","bundle_sha256":"64d2edd4f2e4406cfab8a4454ad2988570ca77f48bfaefe9fc139485f3c01425"}}