{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:BOWAILUNUEPWKZFIXXIWTKLY6T","short_pith_number":"pith:BOWAILUN","canonical_record":{"source":{"id":"2508.19569","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"cs.AI","submitted_at":"2025-08-27T04:58:56Z","cross_cats_sorted":[],"title_canon_sha256":"e2131d5ba34dba7e0fd41367dd687e3b2cc4c2e263c8895428054ade44ff097a","abstract_canon_sha256":"4dd04d8841bad283dd1bfaa1ce29432e1d8b0677da46bd0127fd0309df7ffdd5"},"schema_version":"1.0"},"canonical_sha256":"0bac042e8da11f6564a8bdd169a978f4fd2b2e04e1dafa5467a6074bbcc46b2a","source":{"kind":"arxiv","id":"2508.19569","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.19569","created_at":"2026-07-05T12:00:14Z"},{"alias_kind":"arxiv_version","alias_value":"2508.19569v1","created_at":"2026-07-05T12:00:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.19569","created_at":"2026-07-05T12:00:14Z"},{"alias_kind":"pith_short_12","alias_value":"BOWAILUNUEPW","created_at":"2026-07-05T12:00:14Z"},{"alias_kind":"pith_short_16","alias_value":"BOWAILUNUEPWKZFI","created_at":"2026-07-05T12:00:14Z"},{"alias_kind":"pith_short_8","alias_value":"BOWAILUN","created_at":"2026-07-05T12:00:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:BOWAILUNUEPWKZFIXXIWTKLY6T","target":"record","payload":{"canonical_record":{"source":{"id":"2508.19569","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"cs.AI","submitted_at":"2025-08-27T04:58:56Z","cross_cats_sorted":[],"title_canon_sha256":"e2131d5ba34dba7e0fd41367dd687e3b2cc4c2e263c8895428054ade44ff097a","abstract_canon_sha256":"4dd04d8841bad283dd1bfaa1ce29432e1d8b0677da46bd0127fd0309df7ffdd5"},"schema_version":"1.0"},"canonical_sha256":"0bac042e8da11f6564a8bdd169a978f4fd2b2e04e1dafa5467a6074bbcc46b2a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T12:00:14.239092Z","signature_b64":"2o48Mf9pw4xVgPwaLuovvVAtMtZywNE2sdTtdDlKpPttwZWHyoJB27eb+heqsL/tshBV88CDlTDUfB6MgbWaBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0bac042e8da11f6564a8bdd169a978f4fd2b2e04e1dafa5467a6074bbcc46b2a","last_reissued_at":"2026-07-05T12:00:14.238632Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T12:00:14.238632Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2508.19569","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":"2026-07-05T12:00:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gdsNK2JZEd/pVhC+u3k3RuO4WYB04kruryRt5oYkrpzfqh/ltcB6R025ycr7oc6kGWoyTmakWvZ0b2TGxZ+cDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T16:35:22.552933Z"},"content_sha256":"9a70cb81824cd1231188cda386613e6e217f31c975e10b7da942e385b23e4639","schema_version":"1.0","event_id":"sha256:9a70cb81824cd1231188cda386613e6e217f31c975e10b7da942e385b23e4639"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:BOWAILUNUEPWKZFIXXIWTKLY6T","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Skill-based Explanations for Serendipitous Course Recommendation","license":"http://creativecommons.org/publicdomain/zero/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.AI","authors_text":"Hung Chau, Peter Brusilovsky, Run Yu, Zachary Pardos","submitted_at":"2025-08-27T04:58:56Z","abstract_excerpt":"Academic choice is crucial in U.S. undergraduate education, allowing students significant freedom in course selection. However, navigating the complex academic environment is challenging due to limited information, guidance, and an overwhelming number of choices, compounded by time restrictions and the high demand for popular courses. Although career counselors exist, their numbers are insufficient, and course recommendation systems, though personalized, often lack insight into student perceptions and explanations to assess course relevance. In this paper, a deep learning-based concept extract"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.19569","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/2508.19569/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":"2026-07-05T12:00:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DbvpGbW/7NCR62grorFcsneFeZYuRxS6cxfI4Hzj+AJkmsfyPoUSLjTgdMaMGBBifc3Bdk+zZPuDmAQ1BT1vAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T16:35:22.553455Z"},"content_sha256":"1bb2a2c1598915016ac7ce4bbd79e1d8509c719ccd50668025a89a05c59a77fe","schema_version":"1.0","event_id":"sha256:1bb2a2c1598915016ac7ce4bbd79e1d8509c719ccd50668025a89a05c59a77fe"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BOWAILUNUEPWKZFIXXIWTKLY6T/bundle.json","state_url":"https://pith.science/pith/BOWAILUNUEPWKZFIXXIWTKLY6T/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BOWAILUNUEPWKZFIXXIWTKLY6T/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":"2026-08-22T16:35:22Z","links":{"resolver":"https://pith.science/pith/BOWAILUNUEPWKZFIXXIWTKLY6T","bundle":"https://pith.science/pith/BOWAILUNUEPWKZFIXXIWTKLY6T/bundle.json","state":"https://pith.science/pith/BOWAILUNUEPWKZFIXXIWTKLY6T/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BOWAILUNUEPWKZFIXXIWTKLY6T/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:BOWAILUNUEPWKZFIXXIWTKLY6T","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":"4dd04d8841bad283dd1bfaa1ce29432e1d8b0677da46bd0127fd0309df7ffdd5","cross_cats_sorted":[],"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"cs.AI","submitted_at":"2025-08-27T04:58:56Z","title_canon_sha256":"e2131d5ba34dba7e0fd41367dd687e3b2cc4c2e263c8895428054ade44ff097a"},"schema_version":"1.0","source":{"id":"2508.19569","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.19569","created_at":"2026-07-05T12:00:14Z"},{"alias_kind":"arxiv_version","alias_value":"2508.19569v1","created_at":"2026-07-05T12:00:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.19569","created_at":"2026-07-05T12:00:14Z"},{"alias_kind":"pith_short_12","alias_value":"BOWAILUNUEPW","created_at":"2026-07-05T12:00:14Z"},{"alias_kind":"pith_short_16","alias_value":"BOWAILUNUEPWKZFI","created_at":"2026-07-05T12:00:14Z"},{"alias_kind":"pith_short_8","alias_value":"BOWAILUN","created_at":"2026-07-05T12:00:14Z"}],"graph_snapshots":[{"event_id":"sha256:1bb2a2c1598915016ac7ce4bbd79e1d8509c719ccd50668025a89a05c59a77fe","target":"graph","created_at":"2026-07-05T12:00:14Z","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/2508.19569/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Academic choice is crucial in U.S. undergraduate education, allowing students significant freedom in course selection. However, navigating the complex academic environment is challenging due to limited information, guidance, and an overwhelming number of choices, compounded by time restrictions and the high demand for popular courses. Although career counselors exist, their numbers are insufficient, and course recommendation systems, though personalized, often lack insight into student perceptions and explanations to assess course relevance. In this paper, a deep learning-based concept extract","authors_text":"Hung Chau, Peter Brusilovsky, Run Yu, Zachary Pardos","cross_cats":[],"headline":"","license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"cs.AI","submitted_at":"2025-08-27T04:58:56Z","title":"Skill-based Explanations for Serendipitous Course Recommendation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.19569","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":"sha256:9a70cb81824cd1231188cda386613e6e217f31c975e10b7da942e385b23e4639","target":"record","created_at":"2026-07-05T12:00:14Z","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":"4dd04d8841bad283dd1bfaa1ce29432e1d8b0677da46bd0127fd0309df7ffdd5","cross_cats_sorted":[],"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"cs.AI","submitted_at":"2025-08-27T04:58:56Z","title_canon_sha256":"e2131d5ba34dba7e0fd41367dd687e3b2cc4c2e263c8895428054ade44ff097a"},"schema_version":"1.0","source":{"id":"2508.19569","kind":"arxiv","version":1}},"canonical_sha256":"0bac042e8da11f6564a8bdd169a978f4fd2b2e04e1dafa5467a6074bbcc46b2a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0bac042e8da11f6564a8bdd169a978f4fd2b2e04e1dafa5467a6074bbcc46b2a","first_computed_at":"2026-07-05T12:00:14.238632Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T12:00:14.238632Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2o48Mf9pw4xVgPwaLuovvVAtMtZywNE2sdTtdDlKpPttwZWHyoJB27eb+heqsL/tshBV88CDlTDUfB6MgbWaBA==","signature_status":"signed_v1","signed_at":"2026-07-05T12:00:14.239092Z","signed_message":"canonical_sha256_bytes"},"source_id":"2508.19569","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9a70cb81824cd1231188cda386613e6e217f31c975e10b7da942e385b23e4639","sha256:1bb2a2c1598915016ac7ce4bbd79e1d8509c719ccd50668025a89a05c59a77fe"],"state_sha256":"1ead5c0210fca1332ffe065dfdb53bd95b7b999bedc1ffc3b3ca6e2ee1f77760"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gYyrGokVKc/+qNJIiFtOUWaCdrB6uKpmwF4ETkAmRPzprhaEtoGcNKHY6hGASIp8kpO94Us9nx1jjL5YC9DHAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-22T16:35:22.557371Z","bundle_sha256":"86a421f69dcde5cb48a32d314f9e5aef6dc8d0d13546d92746ac3d325ccd84ac"}}