{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:GQKN2D746YADJQCVXK3F66QRDC","short_pith_number":"pith:GQKN2D74","schema_version":"1.0","canonical_sha256":"3414dd0ffcf60034c055bab65f7a11188ad6d4355b9c663ab81df06ffa198847","source":{"kind":"arxiv","id":"1608.03153","version":1},"attestation_state":"computed","paper":{"title":"Fast approximate delivery of fluence maps: the VMAT case","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.med-ph","authors_text":"David Craft, Marleen Balvert","submitted_at":"2016-08-10T12:40:07Z","abstract_excerpt":"In this article we provide a method to generate the trade-off between delivery time and fluence map matching quality for volumetric modulated arc therapy (VMAT). At the heart of our method lies a mathematical programming model that, for a given duration of delivery, optimizes leaf trajectories and dose rates such that the desired fluence map is reproduced as well as possible. This model was presented for the single map case in a companion paper (Fast approximate delivery of fluence maps: the single map case). The resulting large-scale, non-convex optimization problem was solved using a heurist"},"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":"1608.03153","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2016-08-10T12:40:07Z","cross_cats_sorted":[],"title_canon_sha256":"a7396c8fe70c3428882f87b2993bfc39b4452e09326795e0af28f2d175b4115d","abstract_canon_sha256":"4f55b63f092371170a15e8ba29fecc0f81009885f295e05b479e12a41f624cc3"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:49:16.214828Z","signature_b64":"91fuwqyRNHCbThRLvV+tDTbAOBkL84OQzb9V5jWHD/yPauQnFYyff0PO+TckuFc9aPuPs0aZZvkbnw3WQau2CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3414dd0ffcf60034c055bab65f7a11188ad6d4355b9c663ab81df06ffa198847","last_reissued_at":"2026-05-18T00:49:16.214461Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:49:16.214461Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Fast approximate delivery of fluence maps: the VMAT case","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.med-ph","authors_text":"David Craft, Marleen Balvert","submitted_at":"2016-08-10T12:40:07Z","abstract_excerpt":"In this article we provide a method to generate the trade-off between delivery time and fluence map matching quality for volumetric modulated arc therapy (VMAT). At the heart of our method lies a mathematical programming model that, for a given duration of delivery, optimizes leaf trajectories and dose rates such that the desired fluence map is reproduced as well as possible. This model was presented for the single map case in a companion paper (Fast approximate delivery of fluence maps: the single map case). The resulting large-scale, non-convex optimization problem was solved using a heurist"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1608.03153","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":"1608.03153","created_at":"2026-05-18T00:49:16.214518+00:00"},{"alias_kind":"arxiv_version","alias_value":"1608.03153v1","created_at":"2026-05-18T00:49:16.214518+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1608.03153","created_at":"2026-05-18T00:49:16.214518+00:00"},{"alias_kind":"pith_short_12","alias_value":"GQKN2D746YAD","created_at":"2026-05-18T12:30:19.053100+00:00"},{"alias_kind":"pith_short_16","alias_value":"GQKN2D746YADJQCV","created_at":"2026-05-18T12:30:19.053100+00:00"},{"alias_kind":"pith_short_8","alias_value":"GQKN2D74","created_at":"2026-05-18T12:30:19.053100+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/GQKN2D746YADJQCVXK3F66QRDC","json":"https://pith.science/pith/GQKN2D746YADJQCVXK3F66QRDC.json","graph_json":"https://pith.science/api/pith-number/GQKN2D746YADJQCVXK3F66QRDC/graph.json","events_json":"https://pith.science/api/pith-number/GQKN2D746YADJQCVXK3F66QRDC/events.json","paper":"https://pith.science/paper/GQKN2D74"},"agent_actions":{"view_html":"https://pith.science/pith/GQKN2D746YADJQCVXK3F66QRDC","download_json":"https://pith.science/pith/GQKN2D746YADJQCVXK3F66QRDC.json","view_paper":"https://pith.science/paper/GQKN2D74","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1608.03153&json=true","fetch_graph":"https://pith.science/api/pith-number/GQKN2D746YADJQCVXK3F66QRDC/graph.json","fetch_events":"https://pith.science/api/pith-number/GQKN2D746YADJQCVXK3F66QRDC/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/GQKN2D746YADJQCVXK3F66QRDC/action/timestamp_anchor","attest_storage":"https://pith.science/pith/GQKN2D746YADJQCVXK3F66QRDC/action/storage_attestation","attest_author":"https://pith.science/pith/GQKN2D746YADJQCVXK3F66QRDC/action/author_attestation","sign_citation":"https://pith.science/pith/GQKN2D746YADJQCVXK3F66QRDC/action/citation_signature","submit_replication":"https://pith.science/pith/GQKN2D746YADJQCVXK3F66QRDC/action/replication_record"}},"created_at":"2026-05-18T00:49:16.214518+00:00","updated_at":"2026-05-18T00:49:16.214518+00:00"}