{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:RRQFSAVFGEXWVYW3AAXORMU2U4","short_pith_number":"pith:RRQFSAVF","schema_version":"1.0","canonical_sha256":"8c605902a5312f6ae2db002ee8b29aa703bf85732fedc0562cb0419af17d29fa","source":{"kind":"arxiv","id":"1601.08074","version":1},"attestation_state":"computed","paper":{"title":"Proton radiography to improve proton radiotherapy: Simulation study at different proton beam energies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.med-ph","authors_text":"A.K. Biegun, E.R. van der Graaf, Jun Takatsu, J. Visser, M-J. van Goethem, M. van Beuzekom, S. Brandenburg","submitted_at":"2016-01-29T12:06:42Z","abstract_excerpt":"To improve the quality of cancer treatment with protons, a translation of X-ray Computed Tomography (CT) images into a map of the proton stopping powers needs to be more accurate. Proton stopping powers determined from CT images have systematic uncertainties in the calculated proton range in a patient of typically 3-4\\% and even up to 10\\% in region containing bone~\\cite{USchneider1995,USchneider1996,WSchneider2000,GCirrone2007,HPaganetti2012,TPlautz2014,GLandry2013,JSchuemann2014}. As a consequence, part of a tumor may receive no dose, or a very high dose can be delivered in healthy ti\\-ssues"},"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":"1601.08074","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2016-01-29T12:06:42Z","cross_cats_sorted":[],"title_canon_sha256":"aaa803516126fd412e0351c2c3916d38a101af48aa501a2a5040239b4b78f8f3","abstract_canon_sha256":"ac50b7511499d56735ac8a23858c2f3a210cccd4a965bc2d952e97d9782ea750"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:45:41.521549Z","signature_b64":"04woflXOoP2awy1+aiYMI39v6XYgxIY+MJszVcIXK9jrU8trz6kGDZbf6HJnu50zsjYoJX3sPk1f0+NFeqwKCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8c605902a5312f6ae2db002ee8b29aa703bf85732fedc0562cb0419af17d29fa","last_reissued_at":"2026-05-17T23:45:41.520769Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:45:41.520769Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Proton radiography to improve proton radiotherapy: Simulation study at different proton beam energies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.med-ph","authors_text":"A.K. Biegun, E.R. van der Graaf, Jun Takatsu, J. Visser, M-J. van Goethem, M. van Beuzekom, S. Brandenburg","submitted_at":"2016-01-29T12:06:42Z","abstract_excerpt":"To improve the quality of cancer treatment with protons, a translation of X-ray Computed Tomography (CT) images into a map of the proton stopping powers needs to be more accurate. Proton stopping powers determined from CT images have systematic uncertainties in the calculated proton range in a patient of typically 3-4\\% and even up to 10\\% in region containing bone~\\cite{USchneider1995,USchneider1996,WSchneider2000,GCirrone2007,HPaganetti2012,TPlautz2014,GLandry2013,JSchuemann2014}. As a consequence, part of a tumor may receive no dose, or a very high dose can be delivered in healthy ti\\-ssues"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.08074","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":"1601.08074","created_at":"2026-05-17T23:45:41.520866+00:00"},{"alias_kind":"arxiv_version","alias_value":"1601.08074v1","created_at":"2026-05-17T23:45:41.520866+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.08074","created_at":"2026-05-17T23:45:41.520866+00:00"},{"alias_kind":"pith_short_12","alias_value":"RRQFSAVFGEXW","created_at":"2026-05-18T12:30:41.710351+00:00"},{"alias_kind":"pith_short_16","alias_value":"RRQFSAVFGEXWVYW3","created_at":"2026-05-18T12:30:41.710351+00:00"},{"alias_kind":"pith_short_8","alias_value":"RRQFSAVF","created_at":"2026-05-18T12:30:41.710351+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/RRQFSAVFGEXWVYW3AAXORMU2U4","json":"https://pith.science/pith/RRQFSAVFGEXWVYW3AAXORMU2U4.json","graph_json":"https://pith.science/api/pith-number/RRQFSAVFGEXWVYW3AAXORMU2U4/graph.json","events_json":"https://pith.science/api/pith-number/RRQFSAVFGEXWVYW3AAXORMU2U4/events.json","paper":"https://pith.science/paper/RRQFSAVF"},"agent_actions":{"view_html":"https://pith.science/pith/RRQFSAVFGEXWVYW3AAXORMU2U4","download_json":"https://pith.science/pith/RRQFSAVFGEXWVYW3AAXORMU2U4.json","view_paper":"https://pith.science/paper/RRQFSAVF","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1601.08074&json=true","fetch_graph":"https://pith.science/api/pith-number/RRQFSAVFGEXWVYW3AAXORMU2U4/graph.json","fetch_events":"https://pith.science/api/pith-number/RRQFSAVFGEXWVYW3AAXORMU2U4/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/RRQFSAVFGEXWVYW3AAXORMU2U4/action/timestamp_anchor","attest_storage":"https://pith.science/pith/RRQFSAVFGEXWVYW3AAXORMU2U4/action/storage_attestation","attest_author":"https://pith.science/pith/RRQFSAVFGEXWVYW3AAXORMU2U4/action/author_attestation","sign_citation":"https://pith.science/pith/RRQFSAVFGEXWVYW3AAXORMU2U4/action/citation_signature","submit_replication":"https://pith.science/pith/RRQFSAVFGEXWVYW3AAXORMU2U4/action/replication_record"}},"created_at":"2026-05-17T23:45:41.520866+00:00","updated_at":"2026-05-17T23:45:41.520866+00:00"}