{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:EPFPWYCYGSWLNZ3YOGUFEJBLH6","short_pith_number":"pith:EPFPWYCY","canonical_record":{"source":{"id":"2606.07279","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ed-ph","submitted_at":"2026-06-05T13:55:54Z","cross_cats_sorted":["cs.CY"],"title_canon_sha256":"a6294bb2d3a6302b7bcc8872c64a3bf8bd74be30c3d110a46c98ebc9af25fd9e","abstract_canon_sha256":"1faa26f386a89266c0890a01137ad359b9bf9575534c1c39d8430ff46961eb87"},"schema_version":"1.0"},"canonical_sha256":"23cafb605834acb6e77871a852242b3faf2dd2404cab74030ec06cbc8760adca","source":{"kind":"arxiv","id":"2606.07279","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.07279","created_at":"2026-06-08T01:05:17Z"},{"alias_kind":"arxiv_version","alias_value":"2606.07279v1","created_at":"2026-06-08T01:05:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.07279","created_at":"2026-06-08T01:05:17Z"},{"alias_kind":"pith_short_12","alias_value":"EPFPWYCYGSWL","created_at":"2026-06-08T01:05:17Z"},{"alias_kind":"pith_short_16","alias_value":"EPFPWYCYGSWLNZ3Y","created_at":"2026-06-08T01:05:17Z"},{"alias_kind":"pith_short_8","alias_value":"EPFPWYCY","created_at":"2026-06-08T01:05:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:EPFPWYCYGSWLNZ3YOGUFEJBLH6","target":"record","payload":{"canonical_record":{"source":{"id":"2606.07279","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ed-ph","submitted_at":"2026-06-05T13:55:54Z","cross_cats_sorted":["cs.CY"],"title_canon_sha256":"a6294bb2d3a6302b7bcc8872c64a3bf8bd74be30c3d110a46c98ebc9af25fd9e","abstract_canon_sha256":"1faa26f386a89266c0890a01137ad359b9bf9575534c1c39d8430ff46961eb87"},"schema_version":"1.0"},"canonical_sha256":"23cafb605834acb6e77871a852242b3faf2dd2404cab74030ec06cbc8760adca","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-08T01:05:17.181416Z","signature_b64":"h59Ol5M36jXXpIRB9vYorQd65W4tyg7tca/4izHh2bnppsCZSdTrTqLzVZuftbQZM+RGDd02dhEG6hXgx2aGDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"23cafb605834acb6e77871a852242b3faf2dd2404cab74030ec06cbc8760adca","last_reissued_at":"2026-06-08T01:05:17.180609Z","signature_status":"signed_v1","first_computed_at":"2026-06-08T01:05:17.180609Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.07279","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":"2026-06-08T01:05:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KtBdIZg02PgLs1jOQ8JcbvqKMcNtEy/IXvp2X07ySmO84DBOFxahTHkGvlSr03KFQyEuu9+cLL6vlJ/mJn7MBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-25T12:52:32.242399Z"},"content_sha256":"b82b20005e273847d0a4c52261b27e474b22a0b5d484637379c9f720e5f2d30d","schema_version":"1.0","event_id":"sha256:b82b20005e273847d0a4c52261b27e474b22a0b5d484637379c9f720e5f2d30d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:EPFPWYCYGSWLNZ3YOGUFEJBLH6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Detective scaffolding for within-session reasoning development: a three-phase framework evaluated in polymer engineering and pre-university outreach","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CY"],"primary_cat":"physics.ed-ph","authors_text":"Dimitrios G Papageorgiou, Haolin Feng, Holly Barrett, Xinru Deng, Yiwei Sun","submitted_at":"2026-06-05T13:55:54Z","abstract_excerpt":"This paper presents a detective scaffolding framework -- a three-phase instructional sequence (Hypothesis Activation -> Evidence Structuring -> Causal Integration) in which engineering students investigate a realistic industrial defect scenario using staged in-class polls as designed evidence probes. Unlike conventional uses of student response systems for engagement, the framework positions each poll as an Evidence-Centred Design instrument targeting a specific reasoning capability. In the primary implementation, 80 Year~3 polymer engineering students progressed from prior-knowledge-driven mi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.07279","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/2606.07279/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":"2026-06-08T01:05:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"d0ptcjq6o8CVkKNL3DT2VV+Igvm6fkMP0Ra0Lcdv4Rdu1+HZN5Eqw2+ZRQ5tvxSpIWZcZHfnoNb29HY+r/BNBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-25T12:52:32.242777Z"},"content_sha256":"aaf42e7d1a59e0a687e4aa16b05cb2e1b62752d0f0f71b3b63bb61831f3029d0","schema_version":"1.0","event_id":"sha256:aaf42e7d1a59e0a687e4aa16b05cb2e1b62752d0f0f71b3b63bb61831f3029d0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EPFPWYCYGSWLNZ3YOGUFEJBLH6/bundle.json","state_url":"https://pith.science/pith/EPFPWYCYGSWLNZ3YOGUFEJBLH6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EPFPWYCYGSWLNZ3YOGUFEJBLH6/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":"2026-06-25T12:52:32Z","links":{"resolver":"https://pith.science/pith/EPFPWYCYGSWLNZ3YOGUFEJBLH6","bundle":"https://pith.science/pith/EPFPWYCYGSWLNZ3YOGUFEJBLH6/bundle.json","state":"https://pith.science/pith/EPFPWYCYGSWLNZ3YOGUFEJBLH6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EPFPWYCYGSWLNZ3YOGUFEJBLH6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:EPFPWYCYGSWLNZ3YOGUFEJBLH6","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":"1faa26f386a89266c0890a01137ad359b9bf9575534c1c39d8430ff46961eb87","cross_cats_sorted":["cs.CY"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ed-ph","submitted_at":"2026-06-05T13:55:54Z","title_canon_sha256":"a6294bb2d3a6302b7bcc8872c64a3bf8bd74be30c3d110a46c98ebc9af25fd9e"},"schema_version":"1.0","source":{"id":"2606.07279","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.07279","created_at":"2026-06-08T01:05:17Z"},{"alias_kind":"arxiv_version","alias_value":"2606.07279v1","created_at":"2026-06-08T01:05:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.07279","created_at":"2026-06-08T01:05:17Z"},{"alias_kind":"pith_short_12","alias_value":"EPFPWYCYGSWL","created_at":"2026-06-08T01:05:17Z"},{"alias_kind":"pith_short_16","alias_value":"EPFPWYCYGSWLNZ3Y","created_at":"2026-06-08T01:05:17Z"},{"alias_kind":"pith_short_8","alias_value":"EPFPWYCY","created_at":"2026-06-08T01:05:17Z"}],"graph_snapshots":[{"event_id":"sha256:aaf42e7d1a59e0a687e4aa16b05cb2e1b62752d0f0f71b3b63bb61831f3029d0","target":"graph","created_at":"2026-06-08T01:05:17Z","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/2606.07279/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This paper presents a detective scaffolding framework -- a three-phase instructional sequence (Hypothesis Activation -> Evidence Structuring -> Causal Integration) in which engineering students investigate a realistic industrial defect scenario using staged in-class polls as designed evidence probes. Unlike conventional uses of student response systems for engagement, the framework positions each poll as an Evidence-Centred Design instrument targeting a specific reasoning capability. In the primary implementation, 80 Year~3 polymer engineering students progressed from prior-knowledge-driven mi","authors_text":"Dimitrios G Papageorgiou, Haolin Feng, Holly Barrett, Xinru Deng, Yiwei Sun","cross_cats":["cs.CY"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ed-ph","submitted_at":"2026-06-05T13:55:54Z","title":"Detective scaffolding for within-session reasoning development: a three-phase framework evaluated in polymer engineering and pre-university outreach"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.07279","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:b82b20005e273847d0a4c52261b27e474b22a0b5d484637379c9f720e5f2d30d","target":"record","created_at":"2026-06-08T01:05:17Z","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":"1faa26f386a89266c0890a01137ad359b9bf9575534c1c39d8430ff46961eb87","cross_cats_sorted":["cs.CY"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ed-ph","submitted_at":"2026-06-05T13:55:54Z","title_canon_sha256":"a6294bb2d3a6302b7bcc8872c64a3bf8bd74be30c3d110a46c98ebc9af25fd9e"},"schema_version":"1.0","source":{"id":"2606.07279","kind":"arxiv","version":1}},"canonical_sha256":"23cafb605834acb6e77871a852242b3faf2dd2404cab74030ec06cbc8760adca","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"23cafb605834acb6e77871a852242b3faf2dd2404cab74030ec06cbc8760adca","first_computed_at":"2026-06-08T01:05:17.180609Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-08T01:05:17.180609Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"h59Ol5M36jXXpIRB9vYorQd65W4tyg7tca/4izHh2bnppsCZSdTrTqLzVZuftbQZM+RGDd02dhEG6hXgx2aGDw==","signature_status":"signed_v1","signed_at":"2026-06-08T01:05:17.181416Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.07279","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b82b20005e273847d0a4c52261b27e474b22a0b5d484637379c9f720e5f2d30d","sha256:aaf42e7d1a59e0a687e4aa16b05cb2e1b62752d0f0f71b3b63bb61831f3029d0"],"state_sha256":"657dce840f206b0d7b011e18f7510fa034bd4f7cc78f3a6e82d78a763a700bef"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"akZMGkKxg5876MEczpdSOH1uJlM4TsJeN/EsoUrjNPp22smKYE59yBOfa9ige+uEObEyZ2zFunw/X808q35JDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-25T12:52:32.244924Z","bundle_sha256":"571d8622a7114c30200f5d251646c3637c8df6e2c1a26c268c4a1ee339e9f243"}}