{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2005:HX5RZILSGJTS5OH42HU375CFSF","short_pith_number":"pith:HX5RZILS","schema_version":"1.0","canonical_sha256":"3dfb1ca17232672eb8fcd1e9bff445917a1b9f746cf729a2fdf540cda5ce3bd2","source":{"kind":"arxiv","id":"physics/0502103","version":1},"attestation_state":"computed","paper":{"title":"A Compact Apparatus for Muon Lifetime Measurement and Time Dilation Demonstration in the Undergraduate Laboratory","license":"","headline":"","cross_cats":["physics.ed-ph"],"primary_cat":"physics.ins-det","authors_text":"Jingbo Ye, Thomas Coan, Tiankuan Liu","submitted_at":"2005-02-19T23:00:09Z","abstract_excerpt":"We describe a compact apparatus that automatically measures the charge averaged lifetime of atmospheric muons in plastic scintillator using low-cost, low-power electronics and that measures the stopping rate of atmospheric muons as a function of altitude to demonstrate relativistic time dilation. The apparatus is designed for the advanced undergraduate physics laboratory and is suitable for field measurements."},"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":"physics/0502103","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"physics.ins-det","submitted_at":"2005-02-19T23:00:09Z","cross_cats_sorted":["physics.ed-ph"],"title_canon_sha256":"8209b33b307091ad8cd98329281a46d10e04e4eab634ab0f3cd7761e711ccdae","abstract_canon_sha256":"d849c30b50f750b10895d771e4570189610f9b91eabcacfc16e6cbf96db98480"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:38:07.886052Z","signature_b64":"Upb4bUwchpRTlJlXNLPC/cUVVdJkOH97ymzeJkLj1uxvGq95rXZ60l9RPZzAYH0V5/gCZQyUWkESmFkJeJHtBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3dfb1ca17232672eb8fcd1e9bff445917a1b9f746cf729a2fdf540cda5ce3bd2","last_reissued_at":"2026-05-18T01:38:07.885389Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:38:07.885389Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A Compact Apparatus for Muon Lifetime Measurement and Time Dilation Demonstration in the Undergraduate Laboratory","license":"","headline":"","cross_cats":["physics.ed-ph"],"primary_cat":"physics.ins-det","authors_text":"Jingbo Ye, Thomas Coan, Tiankuan Liu","submitted_at":"2005-02-19T23:00:09Z","abstract_excerpt":"We describe a compact apparatus that automatically measures the charge averaged lifetime of atmospheric muons in plastic scintillator using low-cost, low-power electronics and that measures the stopping rate of atmospheric muons as a function of altitude to demonstrate relativistic time dilation. The apparatus is designed for the advanced undergraduate physics laboratory and is suitable for field measurements."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"physics/0502103","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":"physics/0502103","created_at":"2026-05-18T01:38:07.885503+00:00"},{"alias_kind":"arxiv_version","alias_value":"physics/0502103v1","created_at":"2026-05-18T01:38:07.885503+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.physics/0502103","created_at":"2026-05-18T01:38:07.885503+00:00"},{"alias_kind":"pith_short_12","alias_value":"HX5RZILSGJTS","created_at":"2026-05-18T12:25:53.335082+00:00"},{"alias_kind":"pith_short_16","alias_value":"HX5RZILSGJTS5OH4","created_at":"2026-05-18T12:25:53.335082+00:00"},{"alias_kind":"pith_short_8","alias_value":"HX5RZILS","created_at":"2026-05-18T12:25:53.335082+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/HX5RZILSGJTS5OH42HU375CFSF","json":"https://pith.science/pith/HX5RZILSGJTS5OH42HU375CFSF.json","graph_json":"https://pith.science/api/pith-number/HX5RZILSGJTS5OH42HU375CFSF/graph.json","events_json":"https://pith.science/api/pith-number/HX5RZILSGJTS5OH42HU375CFSF/events.json","paper":"https://pith.science/paper/HX5RZILS"},"agent_actions":{"view_html":"https://pith.science/pith/HX5RZILSGJTS5OH42HU375CFSF","download_json":"https://pith.science/pith/HX5RZILSGJTS5OH42HU375CFSF.json","view_paper":"https://pith.science/paper/HX5RZILS","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=physics/0502103&json=true","fetch_graph":"https://pith.science/api/pith-number/HX5RZILSGJTS5OH42HU375CFSF/graph.json","fetch_events":"https://pith.science/api/pith-number/HX5RZILSGJTS5OH42HU375CFSF/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/HX5RZILSGJTS5OH42HU375CFSF/action/timestamp_anchor","attest_storage":"https://pith.science/pith/HX5RZILSGJTS5OH42HU375CFSF/action/storage_attestation","attest_author":"https://pith.science/pith/HX5RZILSGJTS5OH42HU375CFSF/action/author_attestation","sign_citation":"https://pith.science/pith/HX5RZILSGJTS5OH42HU375CFSF/action/citation_signature","submit_replication":"https://pith.science/pith/HX5RZILSGJTS5OH42HU375CFSF/action/replication_record"}},"created_at":"2026-05-18T01:38:07.885503+00:00","updated_at":"2026-05-18T01:38:07.885503+00:00"}