{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:MA34XJOR2APDH4ERLK34YEAQDC","short_pith_number":"pith:MA34XJOR","canonical_record":{"source":{"id":"1507.03925","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ed-ph","submitted_at":"2015-07-14T16:57:40Z","cross_cats_sorted":[],"title_canon_sha256":"e6ed6cca1f4a3e1ab84c8f4f8a485829de0b8ad34ade8be8dd2280c0496c8da7","abstract_canon_sha256":"1fe1b8f714eea9a99937c606e9a876a0f9289b2583d4e2420c61454e67c4b5cd"},"schema_version":"1.0"},"canonical_sha256":"6037cba5d1d01e33f0915ab7cc101018aea2887c9923e252b3eda85ae9939b63","source":{"kind":"arxiv","id":"1507.03925","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.03925","created_at":"2026-05-18T01:36:52Z"},{"alias_kind":"arxiv_version","alias_value":"1507.03925v1","created_at":"2026-05-18T01:36:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.03925","created_at":"2026-05-18T01:36:52Z"},{"alias_kind":"pith_short_12","alias_value":"MA34XJOR2APD","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_16","alias_value":"MA34XJOR2APDH4ER","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_8","alias_value":"MA34XJOR","created_at":"2026-05-18T12:29:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:MA34XJOR2APDH4ERLK34YEAQDC","target":"record","payload":{"canonical_record":{"source":{"id":"1507.03925","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ed-ph","submitted_at":"2015-07-14T16:57:40Z","cross_cats_sorted":[],"title_canon_sha256":"e6ed6cca1f4a3e1ab84c8f4f8a485829de0b8ad34ade8be8dd2280c0496c8da7","abstract_canon_sha256":"1fe1b8f714eea9a99937c606e9a876a0f9289b2583d4e2420c61454e67c4b5cd"},"schema_version":"1.0"},"canonical_sha256":"6037cba5d1d01e33f0915ab7cc101018aea2887c9923e252b3eda85ae9939b63","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:36:52.223388Z","signature_b64":"XmA01wvYsFEuCgVyLlZiYDFnO3HwMWKM4RfQ2ux71+KZrdN31v74k3MI+EovcRn0c4IyweGND62/oeKZwL2tBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6037cba5d1d01e33f0915ab7cc101018aea2887c9923e252b3eda85ae9939b63","last_reissued_at":"2026-05-18T01:36:52.222689Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:36:52.222689Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1507.03925","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":"2026-05-18T01:36:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6UOixDyJYMuPdLzQLPu4+tOM21iUJLeTi0g7UkeI7IIi2aEs4MNGp3lf6sTjDssbzYhogj173E7mywVvM7h3DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T22:00:22.111582Z"},"content_sha256":"5c2b61bc62ad797421d9083805401c9328445093c5bc858c3816107fd016ad7e","schema_version":"1.0","event_id":"sha256:5c2b61bc62ad797421d9083805401c9328445093c5bc858c3816107fd016ad7e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:MA34XJOR2APDH4ERLK34YEAQDC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Redesigning a junior-level electronics course to support engagement in scientific practices","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.ed-ph","authors_text":"H. J. Lewandowski, Noah Finkelstein","submitted_at":"2015-07-14T16:57:40Z","abstract_excerpt":"Building on successful work on studying and transforming our senior-level Advanced Lab course, we have transformed our junior-level Electronics course to engage students in a variety of authentic scientific practices, including constructing, testing, and refining models of canonical measurement tools and analog circuits. We describe our approach to the transformation, provide a framework for incorporating authentic scientific practices, and present initial outcomes from the project. As part of the broader assessment of these course transformations, we examine one course learning outcome: devel"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.03925","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":""},"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":"2026-05-18T01:36:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Bg7BGPlYw/cWNyWqkhVmyI+fl1Iw6yTA/mmypF5yWRBlNNxa9OCKhSxbtOX55gm9wwr2MGANjRQAMiaBMkI7AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T22:00:22.111935Z"},"content_sha256":"d7b3870d460373c7c1b7f9c9a63614335070a15d57fddf81b856915e5a4c2368","schema_version":"1.0","event_id":"sha256:d7b3870d460373c7c1b7f9c9a63614335070a15d57fddf81b856915e5a4c2368"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MA34XJOR2APDH4ERLK34YEAQDC/bundle.json","state_url":"https://pith.science/pith/MA34XJOR2APDH4ERLK34YEAQDC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MA34XJOR2APDH4ERLK34YEAQDC/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":"2026-06-22T22:00:22Z","links":{"resolver":"https://pith.science/pith/MA34XJOR2APDH4ERLK34YEAQDC","bundle":"https://pith.science/pith/MA34XJOR2APDH4ERLK34YEAQDC/bundle.json","state":"https://pith.science/pith/MA34XJOR2APDH4ERLK34YEAQDC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MA34XJOR2APDH4ERLK34YEAQDC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:MA34XJOR2APDH4ERLK34YEAQDC","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":"1fe1b8f714eea9a99937c606e9a876a0f9289b2583d4e2420c61454e67c4b5cd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ed-ph","submitted_at":"2015-07-14T16:57:40Z","title_canon_sha256":"e6ed6cca1f4a3e1ab84c8f4f8a485829de0b8ad34ade8be8dd2280c0496c8da7"},"schema_version":"1.0","source":{"id":"1507.03925","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.03925","created_at":"2026-05-18T01:36:52Z"},{"alias_kind":"arxiv_version","alias_value":"1507.03925v1","created_at":"2026-05-18T01:36:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.03925","created_at":"2026-05-18T01:36:52Z"},{"alias_kind":"pith_short_12","alias_value":"MA34XJOR2APD","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_16","alias_value":"MA34XJOR2APDH4ER","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_8","alias_value":"MA34XJOR","created_at":"2026-05-18T12:29:32Z"}],"graph_snapshots":[{"event_id":"sha256:d7b3870d460373c7c1b7f9c9a63614335070a15d57fddf81b856915e5a4c2368","target":"graph","created_at":"2026-05-18T01:36:52Z","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":"Building on successful work on studying and transforming our senior-level Advanced Lab course, we have transformed our junior-level Electronics course to engage students in a variety of authentic scientific practices, including constructing, testing, and refining models of canonical measurement tools and analog circuits. We describe our approach to the transformation, provide a framework for incorporating authentic scientific practices, and present initial outcomes from the project. As part of the broader assessment of these course transformations, we examine one course learning outcome: devel","authors_text":"H. J. Lewandowski, Noah Finkelstein","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ed-ph","submitted_at":"2015-07-14T16:57:40Z","title":"Redesigning a junior-level electronics course to support engagement in scientific practices"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.03925","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":"sha256:5c2b61bc62ad797421d9083805401c9328445093c5bc858c3816107fd016ad7e","target":"record","created_at":"2026-05-18T01:36:52Z","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":"1fe1b8f714eea9a99937c606e9a876a0f9289b2583d4e2420c61454e67c4b5cd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ed-ph","submitted_at":"2015-07-14T16:57:40Z","title_canon_sha256":"e6ed6cca1f4a3e1ab84c8f4f8a485829de0b8ad34ade8be8dd2280c0496c8da7"},"schema_version":"1.0","source":{"id":"1507.03925","kind":"arxiv","version":1}},"canonical_sha256":"6037cba5d1d01e33f0915ab7cc101018aea2887c9923e252b3eda85ae9939b63","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6037cba5d1d01e33f0915ab7cc101018aea2887c9923e252b3eda85ae9939b63","first_computed_at":"2026-05-18T01:36:52.222689Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:36:52.222689Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XmA01wvYsFEuCgVyLlZiYDFnO3HwMWKM4RfQ2ux71+KZrdN31v74k3MI+EovcRn0c4IyweGND62/oeKZwL2tBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:36:52.223388Z","signed_message":"canonical_sha256_bytes"},"source_id":"1507.03925","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5c2b61bc62ad797421d9083805401c9328445093c5bc858c3816107fd016ad7e","sha256:d7b3870d460373c7c1b7f9c9a63614335070a15d57fddf81b856915e5a4c2368"],"state_sha256":"fcdc8a84aa8bfe4515dd712de11a90ac17fa5d01d72c363bfe235667974df53a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7BQqbjnl/kZ0ApTiDF3vJL47YXjJ/d9gPzaWsnrGpXzLU+9fl5Q9fEBG5hkj19Mr/MK5ocgth0huYZSHrmS+Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-22T22:00:22.114027Z","bundle_sha256":"d0bfda9f9f1013ceb2e0677fe1d8b9e322f842ba1d4041e26b1a9b26573d6712"}}