{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:DBZAB7VXFW7WPO75JR5FMXZKMU","short_pith_number":"pith:DBZAB7VX","canonical_record":{"source":{"id":"2508.16779","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.HC","submitted_at":"2025-08-22T20:23:35Z","cross_cats_sorted":[],"title_canon_sha256":"24b6f72774cfb2e8cbef95f21c5986364f8a86e3aa2c266a990ea84d6b206003","abstract_canon_sha256":"a57245080684e59666963ce531467f82f8dc6468bc76c41b391a5d4068a17351"},"schema_version":"1.0"},"canonical_sha256":"187200feb72dbf67bbfd4c7a565f2a651283545bf8e592922b4517407a72e5f7","source":{"kind":"arxiv","id":"2508.16779","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.16779","created_at":"2026-07-05T11:58:03Z"},{"alias_kind":"arxiv_version","alias_value":"2508.16779v1","created_at":"2026-07-05T11:58:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.16779","created_at":"2026-07-05T11:58:03Z"},{"alias_kind":"pith_short_12","alias_value":"DBZAB7VXFW7W","created_at":"2026-07-05T11:58:03Z"},{"alias_kind":"pith_short_16","alias_value":"DBZAB7VXFW7WPO75","created_at":"2026-07-05T11:58:03Z"},{"alias_kind":"pith_short_8","alias_value":"DBZAB7VX","created_at":"2026-07-05T11:58:03Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:DBZAB7VXFW7WPO75JR5FMXZKMU","target":"record","payload":{"canonical_record":{"source":{"id":"2508.16779","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.HC","submitted_at":"2025-08-22T20:23:35Z","cross_cats_sorted":[],"title_canon_sha256":"24b6f72774cfb2e8cbef95f21c5986364f8a86e3aa2c266a990ea84d6b206003","abstract_canon_sha256":"a57245080684e59666963ce531467f82f8dc6468bc76c41b391a5d4068a17351"},"schema_version":"1.0"},"canonical_sha256":"187200feb72dbf67bbfd4c7a565f2a651283545bf8e592922b4517407a72e5f7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:58:03.436253Z","signature_b64":"ZCFhrmQrlWzU/7xlLOGf9ehrjH6Jx8O4R9fNvHk7mU3LdvTBVtY2uPdiezcLDde1dP4efZk5xq3RZN7Rv++HAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"187200feb72dbf67bbfd4c7a565f2a651283545bf8e592922b4517407a72e5f7","last_reissued_at":"2026-07-05T11:58:03.435786Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:58:03.435786Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2508.16779","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":"2026-07-05T11:58:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YbDGxpLJrM2b52/aFwzz6GO7PP/O0UX21anXnfDmCQNrg3PawQZO0Dq6PMWdimd6pqiuumyHhsf6pRFgAQgLCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T14:24:37.218183Z"},"content_sha256":"2cedb594fb6a4126163a8c11f6b01dbc6034d18be8bd6b94ac774bfe8f89e9c1","schema_version":"1.0","event_id":"sha256:2cedb594fb6a4126163a8c11f6b01dbc6034d18be8bd6b94ac774bfe8f89e9c1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:DBZAB7VXFW7WPO75JR5FMXZKMU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Minimalistic Approach to Predict and Understand the Relation of App Usage with Students' Academic Performances","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.HC","authors_text":"Ekram Hossain, Md Sabbir Ahmed, Mohammad Abdul Hadi, Nova Ahmed, Rahat Jahangir Rony","submitted_at":"2025-08-22T20:23:35Z","abstract_excerpt":"Due to usage of self-reported data which may contain biasness, the existing studies may not unveil the exact relation between academic grades and app categories such as Video. Additionally, the existing systems' requirement for data of prolonged period to predict grades may not facilitate early intervention to improve it. Thus, we presented an app that retrieves past 7 days' actual app usage data within a second (Mean=0.31s, SD=1.1s). Our analysis on 124 Bangladeshi students' real-time data demonstrates app usage sessions have a significant (p<0.05) negative association with CGPA. However, the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.16779","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/2508.16779/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":"2026-07-05T11:58:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BVEkFhor8u0/KZu94xzr2xxfPTp79HizvNgoWsf4FgGMVsWce4odhmmb/BrrCsIO+fFs4HWYYa73aYApe8ctAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T14:24:37.218747Z"},"content_sha256":"d596a6e96d0d2611ea14327cc70b9d464026a315ccb2313fe46c24974aa668ba","schema_version":"1.0","event_id":"sha256:d596a6e96d0d2611ea14327cc70b9d464026a315ccb2313fe46c24974aa668ba"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DBZAB7VXFW7WPO75JR5FMXZKMU/bundle.json","state_url":"https://pith.science/pith/DBZAB7VXFW7WPO75JR5FMXZKMU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DBZAB7VXFW7WPO75JR5FMXZKMU/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":"2026-08-16T14:24:37Z","links":{"resolver":"https://pith.science/pith/DBZAB7VXFW7WPO75JR5FMXZKMU","bundle":"https://pith.science/pith/DBZAB7VXFW7WPO75JR5FMXZKMU/bundle.json","state":"https://pith.science/pith/DBZAB7VXFW7WPO75JR5FMXZKMU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DBZAB7VXFW7WPO75JR5FMXZKMU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:DBZAB7VXFW7WPO75JR5FMXZKMU","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":"a57245080684e59666963ce531467f82f8dc6468bc76c41b391a5d4068a17351","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.HC","submitted_at":"2025-08-22T20:23:35Z","title_canon_sha256":"24b6f72774cfb2e8cbef95f21c5986364f8a86e3aa2c266a990ea84d6b206003"},"schema_version":"1.0","source":{"id":"2508.16779","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.16779","created_at":"2026-07-05T11:58:03Z"},{"alias_kind":"arxiv_version","alias_value":"2508.16779v1","created_at":"2026-07-05T11:58:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.16779","created_at":"2026-07-05T11:58:03Z"},{"alias_kind":"pith_short_12","alias_value":"DBZAB7VXFW7W","created_at":"2026-07-05T11:58:03Z"},{"alias_kind":"pith_short_16","alias_value":"DBZAB7VXFW7WPO75","created_at":"2026-07-05T11:58:03Z"},{"alias_kind":"pith_short_8","alias_value":"DBZAB7VX","created_at":"2026-07-05T11:58:03Z"}],"graph_snapshots":[{"event_id":"sha256:d596a6e96d0d2611ea14327cc70b9d464026a315ccb2313fe46c24974aa668ba","target":"graph","created_at":"2026-07-05T11:58:03Z","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/2508.16779/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Due to usage of self-reported data which may contain biasness, the existing studies may not unveil the exact relation between academic grades and app categories such as Video. Additionally, the existing systems' requirement for data of prolonged period to predict grades may not facilitate early intervention to improve it. Thus, we presented an app that retrieves past 7 days' actual app usage data within a second (Mean=0.31s, SD=1.1s). Our analysis on 124 Bangladeshi students' real-time data demonstrates app usage sessions have a significant (p<0.05) negative association with CGPA. However, the","authors_text":"Ekram Hossain, Md Sabbir Ahmed, Mohammad Abdul Hadi, Nova Ahmed, Rahat Jahangir Rony","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.HC","submitted_at":"2025-08-22T20:23:35Z","title":"A Minimalistic Approach to Predict and Understand the Relation of App Usage with Students' Academic Performances"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.16779","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":"sha256:2cedb594fb6a4126163a8c11f6b01dbc6034d18be8bd6b94ac774bfe8f89e9c1","target":"record","created_at":"2026-07-05T11:58:03Z","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":"a57245080684e59666963ce531467f82f8dc6468bc76c41b391a5d4068a17351","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.HC","submitted_at":"2025-08-22T20:23:35Z","title_canon_sha256":"24b6f72774cfb2e8cbef95f21c5986364f8a86e3aa2c266a990ea84d6b206003"},"schema_version":"1.0","source":{"id":"2508.16779","kind":"arxiv","version":1}},"canonical_sha256":"187200feb72dbf67bbfd4c7a565f2a651283545bf8e592922b4517407a72e5f7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"187200feb72dbf67bbfd4c7a565f2a651283545bf8e592922b4517407a72e5f7","first_computed_at":"2026-07-05T11:58:03.435786Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:58:03.435786Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZCFhrmQrlWzU/7xlLOGf9ehrjH6Jx8O4R9fNvHk7mU3LdvTBVtY2uPdiezcLDde1dP4efZk5xq3RZN7Rv++HAg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:58:03.436253Z","signed_message":"canonical_sha256_bytes"},"source_id":"2508.16779","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2cedb594fb6a4126163a8c11f6b01dbc6034d18be8bd6b94ac774bfe8f89e9c1","sha256:d596a6e96d0d2611ea14327cc70b9d464026a315ccb2313fe46c24974aa668ba"],"state_sha256":"d6d078357264c9e8497a459c3c621d8cc4dc4b96d3d591969f73538a28b5bf49"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DaFs3MvKO4Z6F5MLtUfJ2lsQMSrCR6KPPZmXPxoS2Kb2J+HxmPWXuGVE++9KXPd743WXVVPZPyii9KQYFBMRBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-16T14:24:37.224035Z","bundle_sha256":"e384ff00aa7b3cfd6c4ab9725f5ba8780aaa7c245c041161d78b18370454b3c2"}}