{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:QFG3DZYA3NPTZUZT277ROBOT72","short_pith_number":"pith:QFG3DZYA","canonical_record":{"source":{"id":"1307.1483","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ed-ph","submitted_at":"2013-07-04T20:30:56Z","cross_cats_sorted":[],"title_canon_sha256":"705250cd56eb2d9c47725469b5d31d50bee6e70dea8eb7ec556d690ee2cb9a63","abstract_canon_sha256":"4643e59861674bc3ae262cbcb5f072e6cbf2d6e2db0342ef3977c0fe786e85dc"},"schema_version":"1.0"},"canonical_sha256":"814db1e700db5f3cd333d7ff1705d3fea56319f52fc9e30226f2f34d17b7f9fb","source":{"kind":"arxiv","id":"1307.1483","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.1483","created_at":"2026-05-18T02:41:10Z"},{"alias_kind":"arxiv_version","alias_value":"1307.1483v2","created_at":"2026-05-18T02:41:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.1483","created_at":"2026-05-18T02:41:10Z"},{"alias_kind":"pith_short_12","alias_value":"QFG3DZYA3NPT","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_16","alias_value":"QFG3DZYA3NPTZUZT","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_8","alias_value":"QFG3DZYA","created_at":"2026-05-18T12:27:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:QFG3DZYA3NPTZUZT277ROBOT72","target":"record","payload":{"canonical_record":{"source":{"id":"1307.1483","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ed-ph","submitted_at":"2013-07-04T20:30:56Z","cross_cats_sorted":[],"title_canon_sha256":"705250cd56eb2d9c47725469b5d31d50bee6e70dea8eb7ec556d690ee2cb9a63","abstract_canon_sha256":"4643e59861674bc3ae262cbcb5f072e6cbf2d6e2db0342ef3977c0fe786e85dc"},"schema_version":"1.0"},"canonical_sha256":"814db1e700db5f3cd333d7ff1705d3fea56319f52fc9e30226f2f34d17b7f9fb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:41:10.301230Z","signature_b64":"2lkzoSkD3duNWcDlz3sNLR4I0IxuN9HSPce10/JQ2S1u7BGd3UszdTYsqR5aZ6vQARE1li7mvQfqN4/S7oCwBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"814db1e700db5f3cd333d7ff1705d3fea56319f52fc9e30226f2f34d17b7f9fb","last_reissued_at":"2026-05-18T02:41:10.300847Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:41:10.300847Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1307.1483","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":"2026-05-18T02:41:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mfLxYPp43fwT2D0ldnfhWv2o/8wvP1zrtmTVFXchwEVcwu4bO6L/atcRKbqtqga2n/uxkEzVjx0V0vh7pfnlAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T00:14:32.586699Z"},"content_sha256":"16e29b3639939952c3a072d17d316bf360bfeee77cf71152fcdb2f54de83292b","schema_version":"1.0","event_id":"sha256:16e29b3639939952c3a072d17d316bf360bfeee77cf71152fcdb2f54de83292b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:QFG3DZYA3NPTZUZT277ROBOT72","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Optimization Of Simulations And Activities For A New Introductory Quantum Mechanics Curriculum","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.ed-ph","authors_text":"Antje Kohnle, Bruce Torrance, Charles Baily, Christopher Hooley","submitted_at":"2013-07-04T20:30:56Z","abstract_excerpt":"The Institute of Physics New Quantum Curriculum (quantumphysics.iop.org) consists of online texts and interactive simulations with accompanying activities for an introductory course in quantum mechanics starting from two-level systems. Observation sessions and analysis of homework and survey responses from in-class trials were used to optimize the simulations and activities in terms of clarity, ease-of-use, promoting exploration, sense-making and linking of multiple representations. This work led to revisions of simulations and activities and general design principles which have been incorpora"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.1483","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":"2026-05-18T02:41:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vaR2lll1u/HZA7bcGo1XV8bxfgx6507ixmR49bW3FQv8wgGelHcR3nZLy0c7WlfF3rJF8O20BwafH0aSKTViBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T00:14:32.587371Z"},"content_sha256":"4d944b279dae3bee92aade1127918c9115445b7e5db20679f6fb5e8624a464f0","schema_version":"1.0","event_id":"sha256:4d944b279dae3bee92aade1127918c9115445b7e5db20679f6fb5e8624a464f0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QFG3DZYA3NPTZUZT277ROBOT72/bundle.json","state_url":"https://pith.science/pith/QFG3DZYA3NPTZUZT277ROBOT72/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QFG3DZYA3NPTZUZT277ROBOT72/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":"2026-06-08T00:14:32Z","links":{"resolver":"https://pith.science/pith/QFG3DZYA3NPTZUZT277ROBOT72","bundle":"https://pith.science/pith/QFG3DZYA3NPTZUZT277ROBOT72/bundle.json","state":"https://pith.science/pith/QFG3DZYA3NPTZUZT277ROBOT72/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QFG3DZYA3NPTZUZT277ROBOT72/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:QFG3DZYA3NPTZUZT277ROBOT72","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":"4643e59861674bc3ae262cbcb5f072e6cbf2d6e2db0342ef3977c0fe786e85dc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ed-ph","submitted_at":"2013-07-04T20:30:56Z","title_canon_sha256":"705250cd56eb2d9c47725469b5d31d50bee6e70dea8eb7ec556d690ee2cb9a63"},"schema_version":"1.0","source":{"id":"1307.1483","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.1483","created_at":"2026-05-18T02:41:10Z"},{"alias_kind":"arxiv_version","alias_value":"1307.1483v2","created_at":"2026-05-18T02:41:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.1483","created_at":"2026-05-18T02:41:10Z"},{"alias_kind":"pith_short_12","alias_value":"QFG3DZYA3NPT","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_16","alias_value":"QFG3DZYA3NPTZUZT","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_8","alias_value":"QFG3DZYA","created_at":"2026-05-18T12:27:57Z"}],"graph_snapshots":[{"event_id":"sha256:4d944b279dae3bee92aade1127918c9115445b7e5db20679f6fb5e8624a464f0","target":"graph","created_at":"2026-05-18T02:41:10Z","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":"The Institute of Physics New Quantum Curriculum (quantumphysics.iop.org) consists of online texts and interactive simulations with accompanying activities for an introductory course in quantum mechanics starting from two-level systems. Observation sessions and analysis of homework and survey responses from in-class trials were used to optimize the simulations and activities in terms of clarity, ease-of-use, promoting exploration, sense-making and linking of multiple representations. This work led to revisions of simulations and activities and general design principles which have been incorpora","authors_text":"Antje Kohnle, Bruce Torrance, Charles Baily, Christopher Hooley","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ed-ph","submitted_at":"2013-07-04T20:30:56Z","title":"Optimization Of Simulations And Activities For A New Introductory Quantum Mechanics Curriculum"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.1483","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":"sha256:16e29b3639939952c3a072d17d316bf360bfeee77cf71152fcdb2f54de83292b","target":"record","created_at":"2026-05-18T02:41:10Z","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":"4643e59861674bc3ae262cbcb5f072e6cbf2d6e2db0342ef3977c0fe786e85dc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ed-ph","submitted_at":"2013-07-04T20:30:56Z","title_canon_sha256":"705250cd56eb2d9c47725469b5d31d50bee6e70dea8eb7ec556d690ee2cb9a63"},"schema_version":"1.0","source":{"id":"1307.1483","kind":"arxiv","version":2}},"canonical_sha256":"814db1e700db5f3cd333d7ff1705d3fea56319f52fc9e30226f2f34d17b7f9fb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"814db1e700db5f3cd333d7ff1705d3fea56319f52fc9e30226f2f34d17b7f9fb","first_computed_at":"2026-05-18T02:41:10.300847Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:41:10.300847Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2lkzoSkD3duNWcDlz3sNLR4I0IxuN9HSPce10/JQ2S1u7BGd3UszdTYsqR5aZ6vQARE1li7mvQfqN4/S7oCwBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:41:10.301230Z","signed_message":"canonical_sha256_bytes"},"source_id":"1307.1483","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:16e29b3639939952c3a072d17d316bf360bfeee77cf71152fcdb2f54de83292b","sha256:4d944b279dae3bee92aade1127918c9115445b7e5db20679f6fb5e8624a464f0"],"state_sha256":"1c9e2f106770e62736d5c67b4ffc8dff2155dfa197258a68d39372a671b8860b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"avlT1/xRM+bHYLVIdUQ2s5dGn7vG3AzhqUz40vD0pC4d4O4GSdOVaNqrphGBYU+XLmbQnj838uAGa0U9AUeADQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T00:14:32.591646Z","bundle_sha256":"44b1825f631031d7ee46a8b431999842e0e48e98235f8437f5eac8a0b6004a28"}}