{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:CII6J63YUHL4GD6Y2SGWVHBIEJ","short_pith_number":"pith:CII6J63Y","schema_version":"1.0","canonical_sha256":"1211e4fb78a1d7c30fd8d48d6a9c28227c006a0a33e05aabf7ca6d4ed7e78709","source":{"kind":"arxiv","id":"1509.04081","version":1},"attestation_state":"computed","paper":{"title":"Student difficulties with the probability distribution for measuring energy and position in quantum mechanics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"physics.ed-ph","authors_text":"Chandralekha Singh, Emily Marshman","submitted_at":"2015-09-14T13:19:15Z","abstract_excerpt":"We have been investigating the difficulties that students in upper-level undergraduate courses have in determining the probability distribution for measuring energy and position as a function of time when the initial wave function is explicitly given. We administered written free-response and multiple-choice questions to investigate these difficulties. We find that students have common difficulties with these concepts. We discuss some of the findings."},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1509.04081","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ed-ph","submitted_at":"2015-09-14T13:19:15Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"87aea0b633a3b7f1d8207d742abf24eea4820514789813f348f038da173864f0","abstract_canon_sha256":"0e98c1a15228a9aae74a4dcdca9f5aa5ff3d33decfc4b5f6a44f20a70cfe9ef5"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:20:29.328217Z","signature_b64":"jCqsJlKqU6EemZElzHU16h464I1omvdnJdASgZ7cefInXfsobwvQbynLh+z9uZEx0W7DVe4L5l2e+Dzd4fo1Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1211e4fb78a1d7c30fd8d48d6a9c28227c006a0a33e05aabf7ca6d4ed7e78709","last_reissued_at":"2026-05-18T01:20:29.327609Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:20:29.327609Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Student difficulties with the probability distribution for measuring energy and position in quantum mechanics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"physics.ed-ph","authors_text":"Chandralekha Singh, Emily Marshman","submitted_at":"2015-09-14T13:19:15Z","abstract_excerpt":"We have been investigating the difficulties that students in upper-level undergraduate courses have in determining the probability distribution for measuring energy and position as a function of time when the initial wave function is explicitly given. We administered written free-response and multiple-choice questions to investigate these difficulties. We find that students have common difficulties with these concepts. We discuss some of the findings."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.04081","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1509.04081","created_at":"2026-05-18T01:20:29.327693+00:00"},{"alias_kind":"arxiv_version","alias_value":"1509.04081v1","created_at":"2026-05-18T01:20:29.327693+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.04081","created_at":"2026-05-18T01:20:29.327693+00:00"},{"alias_kind":"pith_short_12","alias_value":"CII6J63YUHL4","created_at":"2026-05-18T12:29:14.074870+00:00"},{"alias_kind":"pith_short_16","alias_value":"CII6J63YUHL4GD6Y","created_at":"2026-05-18T12:29:14.074870+00:00"},{"alias_kind":"pith_short_8","alias_value":"CII6J63Y","created_at":"2026-05-18T12:29:14.074870+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/CII6J63YUHL4GD6Y2SGWVHBIEJ","json":"https://pith.science/pith/CII6J63YUHL4GD6Y2SGWVHBIEJ.json","graph_json":"https://pith.science/api/pith-number/CII6J63YUHL4GD6Y2SGWVHBIEJ/graph.json","events_json":"https://pith.science/api/pith-number/CII6J63YUHL4GD6Y2SGWVHBIEJ/events.json","paper":"https://pith.science/paper/CII6J63Y"},"agent_actions":{"view_html":"https://pith.science/pith/CII6J63YUHL4GD6Y2SGWVHBIEJ","download_json":"https://pith.science/pith/CII6J63YUHL4GD6Y2SGWVHBIEJ.json","view_paper":"https://pith.science/paper/CII6J63Y","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1509.04081&json=true","fetch_graph":"https://pith.science/api/pith-number/CII6J63YUHL4GD6Y2SGWVHBIEJ/graph.json","fetch_events":"https://pith.science/api/pith-number/CII6J63YUHL4GD6Y2SGWVHBIEJ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/CII6J63YUHL4GD6Y2SGWVHBIEJ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/CII6J63YUHL4GD6Y2SGWVHBIEJ/action/storage_attestation","attest_author":"https://pith.science/pith/CII6J63YUHL4GD6Y2SGWVHBIEJ/action/author_attestation","sign_citation":"https://pith.science/pith/CII6J63YUHL4GD6Y2SGWVHBIEJ/action/citation_signature","submit_replication":"https://pith.science/pith/CII6J63YUHL4GD6Y2SGWVHBIEJ/action/replication_record"}},"created_at":"2026-05-18T01:20:29.327693+00:00","updated_at":"2026-05-18T01:20:29.327693+00:00"}