{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:QXIPR2BLREWCAG6MFCR4JGGNYK","short_pith_number":"pith:QXIPR2BL","canonical_record":{"source":{"id":"2506.11107","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2025-06-07T08:15:26Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"12bcf35e2ccc068c8c701619c7dddafb23795447ae09c72c7a229c902fe1ec74","abstract_canon_sha256":"b01a02e64909caf1982b70c620271e7e450b5b0f14c73ccd2b766f280fa8142d"},"schema_version":"1.0"},"canonical_sha256":"85d0f8e82b892c201bcc28a3c498cdc2bd909b2d0e44e2f1230ebc897abe4d74","source":{"kind":"arxiv","id":"2506.11107","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.11107","created_at":"2026-07-05T11:20:59Z"},{"alias_kind":"arxiv_version","alias_value":"2506.11107v1","created_at":"2026-07-05T11:20:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.11107","created_at":"2026-07-05T11:20:59Z"},{"alias_kind":"pith_short_12","alias_value":"QXIPR2BLREWC","created_at":"2026-07-05T11:20:59Z"},{"alias_kind":"pith_short_16","alias_value":"QXIPR2BLREWCAG6M","created_at":"2026-07-05T11:20:59Z"},{"alias_kind":"pith_short_8","alias_value":"QXIPR2BL","created_at":"2026-07-05T11:20:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:QXIPR2BLREWCAG6MFCR4JGGNYK","target":"record","payload":{"canonical_record":{"source":{"id":"2506.11107","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2025-06-07T08:15:26Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"12bcf35e2ccc068c8c701619c7dddafb23795447ae09c72c7a229c902fe1ec74","abstract_canon_sha256":"b01a02e64909caf1982b70c620271e7e450b5b0f14c73ccd2b766f280fa8142d"},"schema_version":"1.0"},"canonical_sha256":"85d0f8e82b892c201bcc28a3c498cdc2bd909b2d0e44e2f1230ebc897abe4d74","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:20:59.544397Z","signature_b64":"zo6wW0gbRhUosGQYMLA1XAagF60r4rPSz0QJSsXZHLTyOkjjHVZOrbMKQZLkBACc3bLoCXSErg+Pdgr+1AGMDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"85d0f8e82b892c201bcc28a3c498cdc2bd909b2d0e44e2f1230ebc897abe4d74","last_reissued_at":"2026-07-05T11:20:59.544032Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:20:59.544032Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2506.11107","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":"2026-07-05T11:20:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+72VPPq/RmLZDHTPUtuR/n+kysfHZU2zojnzWcYTWmRkj92+qj9qr33ECXrNTkv7oeK9wI2AO1eqX5/1GDESDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T06:24:58.018573Z"},"content_sha256":"911f48f9edc02c9caabad64b052220b1ae60175da255ee6df318297fb32af6aa","schema_version":"1.0","event_id":"sha256:911f48f9edc02c9caabad64b052220b1ae60175da255ee6df318297fb32af6aa"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:QXIPR2BLREWCAG6MFCR4JGGNYK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Denoising Programming Knowledge Tracing with a Code Graph-based Tuning Adaptor","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.AI"],"primary_cat":"cs.SE","authors_text":"Fangzhou Yao, Hao Wang, Linan Yre, Qi Liu, Rui Li, WeiBo Gao, Yuze Zhao, Zheng Zhang","submitted_at":"2025-06-07T08:15:26Z","abstract_excerpt":"Programming Knowledge Tracking (PKT) aims to dynamically diagnose learners' mastery levels of programming knowledge based on their coding activities, facilitating more effective and personalized programming education. However, current PKT studies primarily focus on the implicit relationship between code content and knowledge assessment, often overlooking two types of noise signals in long-term programming activities: unwanted signals from unrelated submissions and weak signals from minor modifications. This practical challenge significantly limits model performance and application. To address "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.11107","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/2506.11107/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":"2026-07-05T11:20:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dcmxhfOjZaHPk4XDVgsnz+s28qEky1vdRFgGEJI0dJokEPznDVsMy61fzsTt7Hj31MKEv3PH9D8BcKHTrAiYDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T06:24:58.019067Z"},"content_sha256":"c12dd81a68be9182805bad01f8a6efa0103e55ab11385ef5c904ad8c36408bc1","schema_version":"1.0","event_id":"sha256:c12dd81a68be9182805bad01f8a6efa0103e55ab11385ef5c904ad8c36408bc1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QXIPR2BLREWCAG6MFCR4JGGNYK/bundle.json","state_url":"https://pith.science/pith/QXIPR2BLREWCAG6MFCR4JGGNYK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QXIPR2BLREWCAG6MFCR4JGGNYK/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":"2026-08-08T06:24:58Z","links":{"resolver":"https://pith.science/pith/QXIPR2BLREWCAG6MFCR4JGGNYK","bundle":"https://pith.science/pith/QXIPR2BLREWCAG6MFCR4JGGNYK/bundle.json","state":"https://pith.science/pith/QXIPR2BLREWCAG6MFCR4JGGNYK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QXIPR2BLREWCAG6MFCR4JGGNYK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:QXIPR2BLREWCAG6MFCR4JGGNYK","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":"b01a02e64909caf1982b70c620271e7e450b5b0f14c73ccd2b766f280fa8142d","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2025-06-07T08:15:26Z","title_canon_sha256":"12bcf35e2ccc068c8c701619c7dddafb23795447ae09c72c7a229c902fe1ec74"},"schema_version":"1.0","source":{"id":"2506.11107","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.11107","created_at":"2026-07-05T11:20:59Z"},{"alias_kind":"arxiv_version","alias_value":"2506.11107v1","created_at":"2026-07-05T11:20:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.11107","created_at":"2026-07-05T11:20:59Z"},{"alias_kind":"pith_short_12","alias_value":"QXIPR2BLREWC","created_at":"2026-07-05T11:20:59Z"},{"alias_kind":"pith_short_16","alias_value":"QXIPR2BLREWCAG6M","created_at":"2026-07-05T11:20:59Z"},{"alias_kind":"pith_short_8","alias_value":"QXIPR2BL","created_at":"2026-07-05T11:20:59Z"}],"graph_snapshots":[{"event_id":"sha256:c12dd81a68be9182805bad01f8a6efa0103e55ab11385ef5c904ad8c36408bc1","target":"graph","created_at":"2026-07-05T11:20:59Z","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/2506.11107/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Programming Knowledge Tracking (PKT) aims to dynamically diagnose learners' mastery levels of programming knowledge based on their coding activities, facilitating more effective and personalized programming education. However, current PKT studies primarily focus on the implicit relationship between code content and knowledge assessment, often overlooking two types of noise signals in long-term programming activities: unwanted signals from unrelated submissions and weak signals from minor modifications. This practical challenge significantly limits model performance and application. To address ","authors_text":"Fangzhou Yao, Hao Wang, Linan Yre, Qi Liu, Rui Li, WeiBo Gao, Yuze Zhao, Zheng Zhang","cross_cats":["cs.AI"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2025-06-07T08:15:26Z","title":"Denoising Programming Knowledge Tracing with a Code Graph-based Tuning Adaptor"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.11107","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":"sha256:911f48f9edc02c9caabad64b052220b1ae60175da255ee6df318297fb32af6aa","target":"record","created_at":"2026-07-05T11:20:59Z","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":"b01a02e64909caf1982b70c620271e7e450b5b0f14c73ccd2b766f280fa8142d","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2025-06-07T08:15:26Z","title_canon_sha256":"12bcf35e2ccc068c8c701619c7dddafb23795447ae09c72c7a229c902fe1ec74"},"schema_version":"1.0","source":{"id":"2506.11107","kind":"arxiv","version":1}},"canonical_sha256":"85d0f8e82b892c201bcc28a3c498cdc2bd909b2d0e44e2f1230ebc897abe4d74","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"85d0f8e82b892c201bcc28a3c498cdc2bd909b2d0e44e2f1230ebc897abe4d74","first_computed_at":"2026-07-05T11:20:59.544032Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:20:59.544032Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zo6wW0gbRhUosGQYMLA1XAagF60r4rPSz0QJSsXZHLTyOkjjHVZOrbMKQZLkBACc3bLoCXSErg+Pdgr+1AGMDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T11:20:59.544397Z","signed_message":"canonical_sha256_bytes"},"source_id":"2506.11107","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:911f48f9edc02c9caabad64b052220b1ae60175da255ee6df318297fb32af6aa","sha256:c12dd81a68be9182805bad01f8a6efa0103e55ab11385ef5c904ad8c36408bc1"],"state_sha256":"8ad37d41a1de9bc0b5082b4223c92da3ad384eab88f0910039d5ecd7d652e285"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cebyoA1Kp6KoWJi78UP4LjVN2M3Q0C/yCG9w0yzM24ua9RjBjdR7drBkJLB9AJ573MWijrrQMPkp0W6j0YdQBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T06:24:58.022681Z","bundle_sha256":"c49f7b29b163f4e5111da410f6e78271da5727d9f9271314102ed556f7f4fb61"}}