{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:LGK3RSKRMWIYKNTBOR7CWBZZ6G","short_pith_number":"pith:LGK3RSKR","canonical_record":{"source":{"id":"2502.19133","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.HC","submitted_at":"2025-02-26T13:44:15Z","cross_cats_sorted":[],"title_canon_sha256":"e903a26036085a2f45e8927813e726428794c1bd68c3e1a4c8ae04b03a8d1f89","abstract_canon_sha256":"032d0d434646bfa369306bfb8a4a14e454a8902c0e2a42b7cef9fd8b6dab4d73"},"schema_version":"1.0"},"canonical_sha256":"5995b8c9516591853661747e2b0739f19e02356bb7e1d81ab6b9e0b61b104790","source":{"kind":"arxiv","id":"2502.19133","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.19133","created_at":"2026-07-05T10:20:27Z"},{"alias_kind":"arxiv_version","alias_value":"2502.19133v1","created_at":"2026-07-05T10:20:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.19133","created_at":"2026-07-05T10:20:27Z"},{"alias_kind":"pith_short_12","alias_value":"LGK3RSKRMWIY","created_at":"2026-07-05T10:20:27Z"},{"alias_kind":"pith_short_16","alias_value":"LGK3RSKRMWIYKNTB","created_at":"2026-07-05T10:20:27Z"},{"alias_kind":"pith_short_8","alias_value":"LGK3RSKR","created_at":"2026-07-05T10:20:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:LGK3RSKRMWIYKNTBOR7CWBZZ6G","target":"record","payload":{"canonical_record":{"source":{"id":"2502.19133","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.HC","submitted_at":"2025-02-26T13:44:15Z","cross_cats_sorted":[],"title_canon_sha256":"e903a26036085a2f45e8927813e726428794c1bd68c3e1a4c8ae04b03a8d1f89","abstract_canon_sha256":"032d0d434646bfa369306bfb8a4a14e454a8902c0e2a42b7cef9fd8b6dab4d73"},"schema_version":"1.0"},"canonical_sha256":"5995b8c9516591853661747e2b0739f19e02356bb7e1d81ab6b9e0b61b104790","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:20:27.246717Z","signature_b64":"g+Pc0TRA0YY/tGqn8aQLuioWtsH8iLI6xXiHF5KYcRZakPZitPPxmJ12YkNEVK8hLSnKpo+ncROMrGniEZtTDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5995b8c9516591853661747e2b0739f19e02356bb7e1d81ab6b9e0b61b104790","last_reissued_at":"2026-07-05T10:20:27.246075Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:20:27.246075Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2502.19133","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":"2026-07-05T10:20:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Y3MG3Q8zgVNYtiN2Ozc+yKK1WW2m4eF/KArmYvtLcwc9C4rwXqm9zHXS93N44xA1E5BewQRpfsNMKMlh4c6cAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T10:39:18.717452Z"},"content_sha256":"534f77d91ee18399458cb3cb856966a546f33da301122eec3c08d0ded439f536","schema_version":"1.0","event_id":"sha256:534f77d91ee18399458cb3cb856966a546f33da301122eec3c08d0ded439f536"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:LGK3RSKRMWIYKNTBOR7CWBZZ6G","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"DBox: Scaffolding Algorithmic Programming Learning through Learner-LLM Co-Decomposition","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.HC","authors_text":"April Yi Wang, Junling Wang, Shuai Ma, Xiaojuan Ma, Yuanhao Zhang","submitted_at":"2025-02-26T13:44:15Z","abstract_excerpt":"Decomposition is a fundamental skill in algorithmic programming, requiring learners to break down complex problems into smaller, manageable parts. However, current self-study methods, such as browsing reference solutions or using LLM assistants, often provide excessive or generic assistance that misaligns with learners' decomposition strategies, hindering independent problem-solving and critical thinking. To address this, we introduce Decomposition Box (DBox), an interactive LLM-based system that scaffolds and adapts to learners' personalized construction of a step tree through a \"learner-LLM "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.19133","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/2502.19133/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":"2026-07-05T10:20:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EiN+Nps0ZZd7uQ94Qxk91O85qpG2nji7LtdF3C97iwh1kevKkSdypWxrGyB7WBaB8RTDghIqCLDZx5Aa8CJnBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T10:39:18.717956Z"},"content_sha256":"eecc33635c268a65d3b00c98824c54e3783093a35206ec56371c7ced61961812","schema_version":"1.0","event_id":"sha256:eecc33635c268a65d3b00c98824c54e3783093a35206ec56371c7ced61961812"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LGK3RSKRMWIYKNTBOR7CWBZZ6G/bundle.json","state_url":"https://pith.science/pith/LGK3RSKRMWIYKNTBOR7CWBZZ6G/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LGK3RSKRMWIYKNTBOR7CWBZZ6G/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":"2026-08-18T10:39:18Z","links":{"resolver":"https://pith.science/pith/LGK3RSKRMWIYKNTBOR7CWBZZ6G","bundle":"https://pith.science/pith/LGK3RSKRMWIYKNTBOR7CWBZZ6G/bundle.json","state":"https://pith.science/pith/LGK3RSKRMWIYKNTBOR7CWBZZ6G/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LGK3RSKRMWIYKNTBOR7CWBZZ6G/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:LGK3RSKRMWIYKNTBOR7CWBZZ6G","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":"032d0d434646bfa369306bfb8a4a14e454a8902c0e2a42b7cef9fd8b6dab4d73","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.HC","submitted_at":"2025-02-26T13:44:15Z","title_canon_sha256":"e903a26036085a2f45e8927813e726428794c1bd68c3e1a4c8ae04b03a8d1f89"},"schema_version":"1.0","source":{"id":"2502.19133","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.19133","created_at":"2026-07-05T10:20:27Z"},{"alias_kind":"arxiv_version","alias_value":"2502.19133v1","created_at":"2026-07-05T10:20:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.19133","created_at":"2026-07-05T10:20:27Z"},{"alias_kind":"pith_short_12","alias_value":"LGK3RSKRMWIY","created_at":"2026-07-05T10:20:27Z"},{"alias_kind":"pith_short_16","alias_value":"LGK3RSKRMWIYKNTB","created_at":"2026-07-05T10:20:27Z"},{"alias_kind":"pith_short_8","alias_value":"LGK3RSKR","created_at":"2026-07-05T10:20:27Z"}],"graph_snapshots":[{"event_id":"sha256:eecc33635c268a65d3b00c98824c54e3783093a35206ec56371c7ced61961812","target":"graph","created_at":"2026-07-05T10:20:27Z","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/2502.19133/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Decomposition is a fundamental skill in algorithmic programming, requiring learners to break down complex problems into smaller, manageable parts. However, current self-study methods, such as browsing reference solutions or using LLM assistants, often provide excessive or generic assistance that misaligns with learners' decomposition strategies, hindering independent problem-solving and critical thinking. To address this, we introduce Decomposition Box (DBox), an interactive LLM-based system that scaffolds and adapts to learners' personalized construction of a step tree through a \"learner-LLM ","authors_text":"April Yi Wang, Junling Wang, Shuai Ma, Xiaojuan Ma, Yuanhao Zhang","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.HC","submitted_at":"2025-02-26T13:44:15Z","title":"DBox: Scaffolding Algorithmic Programming Learning through Learner-LLM Co-Decomposition"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.19133","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":"sha256:534f77d91ee18399458cb3cb856966a546f33da301122eec3c08d0ded439f536","target":"record","created_at":"2026-07-05T10:20:27Z","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":"032d0d434646bfa369306bfb8a4a14e454a8902c0e2a42b7cef9fd8b6dab4d73","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.HC","submitted_at":"2025-02-26T13:44:15Z","title_canon_sha256":"e903a26036085a2f45e8927813e726428794c1bd68c3e1a4c8ae04b03a8d1f89"},"schema_version":"1.0","source":{"id":"2502.19133","kind":"arxiv","version":1}},"canonical_sha256":"5995b8c9516591853661747e2b0739f19e02356bb7e1d81ab6b9e0b61b104790","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5995b8c9516591853661747e2b0739f19e02356bb7e1d81ab6b9e0b61b104790","first_computed_at":"2026-07-05T10:20:27.246075Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:20:27.246075Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"g+Pc0TRA0YY/tGqn8aQLuioWtsH8iLI6xXiHF5KYcRZakPZitPPxmJ12YkNEVK8hLSnKpo+ncROMrGniEZtTDA==","signature_status":"signed_v1","signed_at":"2026-07-05T10:20:27.246717Z","signed_message":"canonical_sha256_bytes"},"source_id":"2502.19133","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:534f77d91ee18399458cb3cb856966a546f33da301122eec3c08d0ded439f536","sha256:eecc33635c268a65d3b00c98824c54e3783093a35206ec56371c7ced61961812"],"state_sha256":"10e1e163ed8237a8f84cd4029669cf1145a5ed4151a751fef97bf997133f7229"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hngKwoM3JILlLxs+TIpmxKo2Cba+aAjBUBNHIK0oMMSJrMxL6PzJadg6p90Lxbsl9XSWftmshSwwBegpeIpbCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-18T10:39:18.721918Z","bundle_sha256":"828a8c2f081e02f230ae1be033b813b8f5c22700ca90ebbedd12dbad0fba72a7"}}