{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:HNXUGOHTMUBPK4NABCWU5OHRR4","short_pith_number":"pith:HNXUGOHT","schema_version":"1.0","canonical_sha256":"3b6f4338f36502f571a008ad4eb8f18f3c8181e4131b56313f2228121269744d","source":{"kind":"arxiv","id":"1303.7162","version":1},"attestation_state":"computed","paper":{"title":"Fritz Hasenohrl and E = mc^2","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","gr-qc"],"primary_cat":"physics.hist-ph","authors_text":"Stephen Boughn","submitted_at":"2013-03-28T16:10:54Z","abstract_excerpt":"In 1904, the year before Einstein's seminal papers on special relativity, Austrian physicist Fritz Hasenohrl examined the properties of blackbody radiation in a moving cavity. He calculated the work necessary to keep the cavity moving at a constant velocity as it fills with radiation and concluded that the radiation energy has associated with it an apparent mass such that E = 3/8 mc^2. Also in 1904, Hasenohrl achieved the same result by computing the force necessary to accelerate a cavity already filled with radiation. In early 1905, he corrected the latter result to E = 3/4 mc^2. In this pape"},"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":"1303.7162","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.hist-ph","submitted_at":"2013-03-28T16:10:54Z","cross_cats_sorted":["astro-ph.CO","gr-qc"],"title_canon_sha256":"3f3d455e08dbf552a663e8c242d5886e298ed790684b55a8d3bd9a2b19c1231c","abstract_canon_sha256":"ecaa9a854c553964c2b5dce422205446fac285c9c1d3c4921c8d2997f6ea1858"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:50:51.506459Z","signature_b64":"hFmPlWzXNd/JxSFFras8D4uGpeDoalczagyJnw0AHMlUESe+v86DkEFdatsrseAzxnAUmOz/SY+7dTtVXva8BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3b6f4338f36502f571a008ad4eb8f18f3c8181e4131b56313f2228121269744d","last_reissued_at":"2026-05-18T01:50:51.505483Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:50:51.505483Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Fritz Hasenohrl and E = mc^2","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","gr-qc"],"primary_cat":"physics.hist-ph","authors_text":"Stephen Boughn","submitted_at":"2013-03-28T16:10:54Z","abstract_excerpt":"In 1904, the year before Einstein's seminal papers on special relativity, Austrian physicist Fritz Hasenohrl examined the properties of blackbody radiation in a moving cavity. He calculated the work necessary to keep the cavity moving at a constant velocity as it fills with radiation and concluded that the radiation energy has associated with it an apparent mass such that E = 3/8 mc^2. Also in 1904, Hasenohrl achieved the same result by computing the force necessary to accelerate a cavity already filled with radiation. In early 1905, he corrected the latter result to E = 3/4 mc^2. In this pape"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.7162","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":"1303.7162","created_at":"2026-05-18T01:50:51.505752+00:00"},{"alias_kind":"arxiv_version","alias_value":"1303.7162v1","created_at":"2026-05-18T01:50:51.505752+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.7162","created_at":"2026-05-18T01:50:51.505752+00:00"},{"alias_kind":"pith_short_12","alias_value":"HNXUGOHTMUBP","created_at":"2026-05-18T12:27:46.883200+00:00"},{"alias_kind":"pith_short_16","alias_value":"HNXUGOHTMUBPK4NA","created_at":"2026-05-18T12:27:46.883200+00:00"},{"alias_kind":"pith_short_8","alias_value":"HNXUGOHT","created_at":"2026-05-18T12:27:46.883200+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/HNXUGOHTMUBPK4NABCWU5OHRR4","json":"https://pith.science/pith/HNXUGOHTMUBPK4NABCWU5OHRR4.json","graph_json":"https://pith.science/api/pith-number/HNXUGOHTMUBPK4NABCWU5OHRR4/graph.json","events_json":"https://pith.science/api/pith-number/HNXUGOHTMUBPK4NABCWU5OHRR4/events.json","paper":"https://pith.science/paper/HNXUGOHT"},"agent_actions":{"view_html":"https://pith.science/pith/HNXUGOHTMUBPK4NABCWU5OHRR4","download_json":"https://pith.science/pith/HNXUGOHTMUBPK4NABCWU5OHRR4.json","view_paper":"https://pith.science/paper/HNXUGOHT","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1303.7162&json=true","fetch_graph":"https://pith.science/api/pith-number/HNXUGOHTMUBPK4NABCWU5OHRR4/graph.json","fetch_events":"https://pith.science/api/pith-number/HNXUGOHTMUBPK4NABCWU5OHRR4/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/HNXUGOHTMUBPK4NABCWU5OHRR4/action/timestamp_anchor","attest_storage":"https://pith.science/pith/HNXUGOHTMUBPK4NABCWU5OHRR4/action/storage_attestation","attest_author":"https://pith.science/pith/HNXUGOHTMUBPK4NABCWU5OHRR4/action/author_attestation","sign_citation":"https://pith.science/pith/HNXUGOHTMUBPK4NABCWU5OHRR4/action/citation_signature","submit_replication":"https://pith.science/pith/HNXUGOHTMUBPK4NABCWU5OHRR4/action/replication_record"}},"created_at":"2026-05-18T01:50:51.505752+00:00","updated_at":"2026-05-18T01:50:51.505752+00:00"}