{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:XFVLSVTNK3QAKT4ULY2EVT2ITV","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":"c7fbed099cfe6527286931d334b7db753f437e6adc8b2e27d81474cfbf09d7c7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ed-ph","submitted_at":"2018-11-19T07:27:44Z","title_canon_sha256":"b7a5186df1999de230bcdc27a053705603499eb9b32783e92c129da3050b5ccd"},"schema_version":"1.0","source":{"id":"1811.07530","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.07530","created_at":"2026-05-18T00:00:24Z"},{"alias_kind":"arxiv_version","alias_value":"1811.07530v1","created_at":"2026-05-18T00:00:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.07530","created_at":"2026-05-18T00:00:24Z"},{"alias_kind":"pith_short_12","alias_value":"XFVLSVTNK3QA","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_16","alias_value":"XFVLSVTNK3QAKT4U","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_8","alias_value":"XFVLSVTN","created_at":"2026-05-18T12:33:01Z"}],"graph_snapshots":[{"event_id":"sha256:9c5cb6aafb26f773b9e505291d1ddf6dc52f8a8f10689814b3cad06ae3852063","target":"graph","created_at":"2026-05-18T00:00:24Z","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":"Teaching electromagnetism by demonstrating a practical application associated with learning content is an important teaching technique. Demonstrations are often performed through video-assisted procedures, and are usually limited to a one-to-one correspondence between the application and the learning content. However, understanding of practical applications frequently requires understanding of learning content beyond the ones studied in electromagnetism. I designed a process to teach the working principles of cryogen-free superconducting magnets. Understanding of this practical application req","authors_text":"Jiro Kitagawa","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ed-ph","submitted_at":"2018-11-19T07:27:44Z","title":"Teaching electromagnetism through demonstration of a practical application involving learning content from multiple disciplines"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.07530","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":"sha256:3599a78799b968d6d1a4e2c35749367523866df3d054259cf4eb47fbfcef49e2","target":"record","created_at":"2026-05-18T00:00:24Z","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":"c7fbed099cfe6527286931d334b7db753f437e6adc8b2e27d81474cfbf09d7c7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ed-ph","submitted_at":"2018-11-19T07:27:44Z","title_canon_sha256":"b7a5186df1999de230bcdc27a053705603499eb9b32783e92c129da3050b5ccd"},"schema_version":"1.0","source":{"id":"1811.07530","kind":"arxiv","version":1}},"canonical_sha256":"b96ab9566d56e0054f945e344acf489d5e7bd71566e5b74aeec1dfd1b50e33a0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b96ab9566d56e0054f945e344acf489d5e7bd71566e5b74aeec1dfd1b50e33a0","first_computed_at":"2026-05-18T00:00:24.191350Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:00:24.191350Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nRWWHQ6WpjQrYpfcXOgw7l85lXKiULjD0sg2NYPt4kfZnW7p+bPWcFdQwxFzzny92HhHb5MMgNeDgLaUP9KnBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:00:24.192058Z","signed_message":"canonical_sha256_bytes"},"source_id":"1811.07530","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3599a78799b968d6d1a4e2c35749367523866df3d054259cf4eb47fbfcef49e2","sha256:9c5cb6aafb26f773b9e505291d1ddf6dc52f8a8f10689814b3cad06ae3852063"],"state_sha256":"b026f5cac0c3459efd95a5a7db417a244f3f6cd7c2551175fb7004b6b1008fa8"}