{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:HHE4TXKBJAVF3FUYEUHWPXEPIX","short_pith_number":"pith:HHE4TXKB","canonical_record":{"source":{"id":"1501.01527","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"physics.ed-ph","submitted_at":"2015-01-07T15:43:04Z","cross_cats_sorted":[],"title_canon_sha256":"b48332250fe398eee8d3e4625ef4154572e787f9a8fd595d594cd4ec2ccc5fa1","abstract_canon_sha256":"7b88e44e00922f4af09e8013e7475668f3dab070862e64ff67581e303e5434d7"},"schema_version":"1.0"},"canonical_sha256":"39c9c9dd41482a5d9698250f67dc8f45d2605d2e30c4b99a6d746caca67080c0","source":{"kind":"arxiv","id":"1501.01527","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.01527","created_at":"2026-05-18T02:29:46Z"},{"alias_kind":"arxiv_version","alias_value":"1501.01527v2","created_at":"2026-05-18T02:29:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.01527","created_at":"2026-05-18T02:29:46Z"},{"alias_kind":"pith_short_12","alias_value":"HHE4TXKBJAVF","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_16","alias_value":"HHE4TXKBJAVF3FUY","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_8","alias_value":"HHE4TXKB","created_at":"2026-05-18T12:29:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:HHE4TXKBJAVF3FUYEUHWPXEPIX","target":"record","payload":{"canonical_record":{"source":{"id":"1501.01527","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"physics.ed-ph","submitted_at":"2015-01-07T15:43:04Z","cross_cats_sorted":[],"title_canon_sha256":"b48332250fe398eee8d3e4625ef4154572e787f9a8fd595d594cd4ec2ccc5fa1","abstract_canon_sha256":"7b88e44e00922f4af09e8013e7475668f3dab070862e64ff67581e303e5434d7"},"schema_version":"1.0"},"canonical_sha256":"39c9c9dd41482a5d9698250f67dc8f45d2605d2e30c4b99a6d746caca67080c0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:29:46.775014Z","signature_b64":"N5RcCFOT+tWsuaJAsQOqSO8GyicDf4V1gYDkCkXbVv8X2Hr0UnLbi6w05cds2RKP5uwc9drCGb8uJbOLTqcUDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"39c9c9dd41482a5d9698250f67dc8f45d2605d2e30c4b99a6d746caca67080c0","last_reissued_at":"2026-05-18T02:29:46.774402Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:29:46.774402Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1501.01527","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:29:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5I0kmZEXj66mdZ4wblA0ESIjkimNQfLjYRPW+dxagkhlU2R5xyevv/p0qpBOj78TXvYkC+GDGKfC64GUS2+6Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T22:44:19.779578Z"},"content_sha256":"42119a71f86e5e755657bc78677a0ba0178fefe4cd15bbc1653b4462077e63ee","schema_version":"1.0","event_id":"sha256:42119a71f86e5e755657bc78677a0ba0178fefe4cd15bbc1653b4462077e63ee"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:HHE4TXKBJAVF3FUYEUHWPXEPIX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Use of Blended Approach in the Learning of Electromagnetic Induction","license":"http://creativecommons.org/licenses/by/3.0/","headline":"","cross_cats":[],"primary_cat":"physics.ed-ph","authors_text":"Charles Chew, Loo Kang Wee","submitted_at":"2015-01-07T15:43:04Z","abstract_excerpt":"This paper traces the importance of pedagogical content knowledge in the digital age to prepare today students for the 21st century. It highlights the need for ICT-based pedagogical models that are grounded in both the learning theories of constructivism and connectivism. One such suitable ICT-based pedagogical model is the TSOI Hybrid Learning Model. By means of a physics blended learning exemplar based on the TSOI Hybrid Learning Model, this paper argues for the use of blended learning approach as the way forward for 21st century teaching."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.01527","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"2026-05-18T02:29:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YYCpJ382LJt2fyEpWwhb3mcKPSX/TOaug55ZKYjJYllmUUlgkbWnCAS8WBCHpd7+s9uDuoTzbi/0ybHoV4YRBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T22:44:19.780339Z"},"content_sha256":"ef26e11c0d0588151fc62cca2408fcab169b22c0eb33029a793cd23e4eef80ed","schema_version":"1.0","event_id":"sha256:ef26e11c0d0588151fc62cca2408fcab169b22c0eb33029a793cd23e4eef80ed"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HHE4TXKBJAVF3FUYEUHWPXEPIX/bundle.json","state_url":"https://pith.science/pith/HHE4TXKBJAVF3FUYEUHWPXEPIX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HHE4TXKBJAVF3FUYEUHWPXEPIX/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":"2026-06-07T22:44:19Z","links":{"resolver":"https://pith.science/pith/HHE4TXKBJAVF3FUYEUHWPXEPIX","bundle":"https://pith.science/pith/HHE4TXKBJAVF3FUYEUHWPXEPIX/bundle.json","state":"https://pith.science/pith/HHE4TXKBJAVF3FUYEUHWPXEPIX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HHE4TXKBJAVF3FUYEUHWPXEPIX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:HHE4TXKBJAVF3FUYEUHWPXEPIX","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":"7b88e44e00922f4af09e8013e7475668f3dab070862e64ff67581e303e5434d7","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"physics.ed-ph","submitted_at":"2015-01-07T15:43:04Z","title_canon_sha256":"b48332250fe398eee8d3e4625ef4154572e787f9a8fd595d594cd4ec2ccc5fa1"},"schema_version":"1.0","source":{"id":"1501.01527","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.01527","created_at":"2026-05-18T02:29:46Z"},{"alias_kind":"arxiv_version","alias_value":"1501.01527v2","created_at":"2026-05-18T02:29:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.01527","created_at":"2026-05-18T02:29:46Z"},{"alias_kind":"pith_short_12","alias_value":"HHE4TXKBJAVF","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_16","alias_value":"HHE4TXKBJAVF3FUY","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_8","alias_value":"HHE4TXKB","created_at":"2026-05-18T12:29:25Z"}],"graph_snapshots":[{"event_id":"sha256:ef26e11c0d0588151fc62cca2408fcab169b22c0eb33029a793cd23e4eef80ed","target":"graph","created_at":"2026-05-18T02:29:46Z","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"},"paper":{"abstract_excerpt":"This paper traces the importance of pedagogical content knowledge in the digital age to prepare today students for the 21st century. It highlights the need for ICT-based pedagogical models that are grounded in both the learning theories of constructivism and connectivism. One such suitable ICT-based pedagogical model is the TSOI Hybrid Learning Model. By means of a physics blended learning exemplar based on the TSOI Hybrid Learning Model, this paper argues for the use of blended learning approach as the way forward for 21st century teaching.","authors_text":"Charles Chew, Loo Kang Wee","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"physics.ed-ph","submitted_at":"2015-01-07T15:43:04Z","title":"Use of Blended Approach in the Learning of Electromagnetic Induction"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.01527","kind":"arxiv","version":2},"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":"sha256:42119a71f86e5e755657bc78677a0ba0178fefe4cd15bbc1653b4462077e63ee","target":"record","created_at":"2026-05-18T02:29:46Z","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":"7b88e44e00922f4af09e8013e7475668f3dab070862e64ff67581e303e5434d7","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"physics.ed-ph","submitted_at":"2015-01-07T15:43:04Z","title_canon_sha256":"b48332250fe398eee8d3e4625ef4154572e787f9a8fd595d594cd4ec2ccc5fa1"},"schema_version":"1.0","source":{"id":"1501.01527","kind":"arxiv","version":2}},"canonical_sha256":"39c9c9dd41482a5d9698250f67dc8f45d2605d2e30c4b99a6d746caca67080c0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"39c9c9dd41482a5d9698250f67dc8f45d2605d2e30c4b99a6d746caca67080c0","first_computed_at":"2026-05-18T02:29:46.774402Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:29:46.774402Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"N5RcCFOT+tWsuaJAsQOqSO8GyicDf4V1gYDkCkXbVv8X2Hr0UnLbi6w05cds2RKP5uwc9drCGb8uJbOLTqcUDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:29:46.775014Z","signed_message":"canonical_sha256_bytes"},"source_id":"1501.01527","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:42119a71f86e5e755657bc78677a0ba0178fefe4cd15bbc1653b4462077e63ee","sha256:ef26e11c0d0588151fc62cca2408fcab169b22c0eb33029a793cd23e4eef80ed"],"state_sha256":"38e7056f233c9b02dc49555416f41cdc7b3dcab7c0a001ad921566be7dd526af"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"y892Hhjx3qguTwLZp5vbVS2xGuy9C7c7QlV9preCExkuQ5MDtZ0/22rc4Ifd6niSW11ubsAAyY59h/GQ217RBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T22:44:19.784197Z","bundle_sha256":"75cfcb15171331c86947f3ad0fdd3eca43389c331142f27223a2f5877abb0b5c"}}