{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:XAEQS3CSGJF5A6NOQHFAE7E6P2","short_pith_number":"pith:XAEQS3CS","canonical_record":{"source":{"id":"2307.01203","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.med-ph","submitted_at":"2023-06-22T18:31:30Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"8041eb32fea8b7a565c65a619e6c1c64a75f1429a3e7a6c292db8b3c17c3e920","abstract_canon_sha256":"04d048e8c3fc65bf71a18acfd7ee6f3786f1d1ebcf8fd87cd5aedb6a07adb60f"},"schema_version":"1.0"},"canonical_sha256":"b809096c52324bd079ae81ca027c9e7e99c6538b854f1155e1c565edbab996cd","source":{"kind":"arxiv","id":"2307.01203","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2307.01203","created_at":"2026-07-05T07:30:50Z"},{"alias_kind":"arxiv_version","alias_value":"2307.01203v1","created_at":"2026-07-05T07:30:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2307.01203","created_at":"2026-07-05T07:30:50Z"},{"alias_kind":"pith_short_12","alias_value":"XAEQS3CSGJF5","created_at":"2026-07-05T07:30:50Z"},{"alias_kind":"pith_short_16","alias_value":"XAEQS3CSGJF5A6NO","created_at":"2026-07-05T07:30:50Z"},{"alias_kind":"pith_short_8","alias_value":"XAEQS3CS","created_at":"2026-07-05T07:30:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:XAEQS3CSGJF5A6NOQHFAE7E6P2","target":"record","payload":{"canonical_record":{"source":{"id":"2307.01203","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.med-ph","submitted_at":"2023-06-22T18:31:30Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"8041eb32fea8b7a565c65a619e6c1c64a75f1429a3e7a6c292db8b3c17c3e920","abstract_canon_sha256":"04d048e8c3fc65bf71a18acfd7ee6f3786f1d1ebcf8fd87cd5aedb6a07adb60f"},"schema_version":"1.0"},"canonical_sha256":"b809096c52324bd079ae81ca027c9e7e99c6538b854f1155e1c565edbab996cd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:30:50.761305Z","signature_b64":"v4PRQ7cPtqDrQO0JzxsemFUlTyuT5K2R8VmU4u7uLCMo2cjDQzp5IwJuHt7575qI8DCImxuyUFGYHfKtpJq3BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b809096c52324bd079ae81ca027c9e7e99c6538b854f1155e1c565edbab996cd","last_reissued_at":"2026-07-05T07:30:50.760899Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:30:50.760899Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2307.01203","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T07:30:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YHPWYnNSGf2xGYaZ2OZzCyPzpp34h6sEArl3UsP+QqrmWuMrAQsoONMECVZzdcFPwGUnMKVhfIPJdUAP8t9dAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T02:10:52.858769Z"},"content_sha256":"a77d65909fc23f141ecf083425101613fbd92003f2cfde9e0d405066b7440fb3","schema_version":"1.0","event_id":"sha256:a77d65909fc23f141ecf083425101613fbd92003f2cfde9e0d405066b7440fb3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:XAEQS3CSGJF5A6NOQHFAE7E6P2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Near-field coded-mask technique and its potential for proton therapy monitoring","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":["physics.ins-det"],"primary_cat":"physics.med-ph","authors_text":"Achim Stahl, Aleksandra Wro\\'nska, Andreas Bolke, Andrzej Magiera, Bjoern Weissler, David Schug, Florian Mueller, Jonas Kasper, Katarzyna Rusiecka, Magdalena Ko{\\l}odziej, Magdalena Rafecas, Ming-Liang Wong, Monika Kercz, Ronja Hetzel, Sara M\\\"uller, Vitalii Urbanevych, Volkmar Schulz","submitted_at":"2023-06-22T18:31:30Z","abstract_excerpt":"Objective. Prompt-gamma imaging encompasses several approaches for online monitoring of beam range or deposited dose distribution in proton therapy. We test one of the imaging techniques - a coded mask approach - both experimentally and via simulations. Approach. Two imaging setups have been investigated experimentally. Each of them comprised a structured tungsten collimator in a form of a MURA mask and a LYSO:Ce scintillation detector of fine granularity. The setups differed in the detector dimensions and the operation mode (1D or 2D imaging). A series of measurements with radioactive sources"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2307.01203","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2307.01203/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T07:30:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mEoG+92fpJOvlgj7SwquXjOIqEIUM5HxerbzK1Pr7Y0VHIb1pgstKhDQZzjp4GxPUOi/8hiicM1pYdbo5CLYAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T02:10:52.859275Z"},"content_sha256":"da81032a26978c8acdaf724fe2621e70795e4eaa9f0291358e355a28fe73946d","schema_version":"1.0","event_id":"sha256:da81032a26978c8acdaf724fe2621e70795e4eaa9f0291358e355a28fe73946d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XAEQS3CSGJF5A6NOQHFAE7E6P2/bundle.json","state_url":"https://pith.science/pith/XAEQS3CSGJF5A6NOQHFAE7E6P2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XAEQS3CSGJF5A6NOQHFAE7E6P2/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-06T02:10:52Z","links":{"resolver":"https://pith.science/pith/XAEQS3CSGJF5A6NOQHFAE7E6P2","bundle":"https://pith.science/pith/XAEQS3CSGJF5A6NOQHFAE7E6P2/bundle.json","state":"https://pith.science/pith/XAEQS3CSGJF5A6NOQHFAE7E6P2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XAEQS3CSGJF5A6NOQHFAE7E6P2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:XAEQS3CSGJF5A6NOQHFAE7E6P2","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"04d048e8c3fc65bf71a18acfd7ee6f3786f1d1ebcf8fd87cd5aedb6a07adb60f","cross_cats_sorted":["physics.ins-det"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.med-ph","submitted_at":"2023-06-22T18:31:30Z","title_canon_sha256":"8041eb32fea8b7a565c65a619e6c1c64a75f1429a3e7a6c292db8b3c17c3e920"},"schema_version":"1.0","source":{"id":"2307.01203","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2307.01203","created_at":"2026-07-05T07:30:50Z"},{"alias_kind":"arxiv_version","alias_value":"2307.01203v1","created_at":"2026-07-05T07:30:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2307.01203","created_at":"2026-07-05T07:30:50Z"},{"alias_kind":"pith_short_12","alias_value":"XAEQS3CSGJF5","created_at":"2026-07-05T07:30:50Z"},{"alias_kind":"pith_short_16","alias_value":"XAEQS3CSGJF5A6NO","created_at":"2026-07-05T07:30:50Z"},{"alias_kind":"pith_short_8","alias_value":"XAEQS3CS","created_at":"2026-07-05T07:30:50Z"}],"graph_snapshots":[{"event_id":"sha256:da81032a26978c8acdaf724fe2621e70795e4eaa9f0291358e355a28fe73946d","target":"graph","created_at":"2026-07-05T07:30:50Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2307.01203/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Objective. Prompt-gamma imaging encompasses several approaches for online monitoring of beam range or deposited dose distribution in proton therapy. We test one of the imaging techniques - a coded mask approach - both experimentally and via simulations. Approach. Two imaging setups have been investigated experimentally. Each of them comprised a structured tungsten collimator in a form of a MURA mask and a LYSO:Ce scintillation detector of fine granularity. The setups differed in the detector dimensions and the operation mode (1D or 2D imaging). A series of measurements with radioactive sources","authors_text":"Achim Stahl, Aleksandra Wro\\'nska, Andreas Bolke, Andrzej Magiera, Bjoern Weissler, David Schug, Florian Mueller, Jonas Kasper, Katarzyna Rusiecka, Magdalena Ko{\\l}odziej, Magdalena Rafecas, Ming-Liang Wong, Monika Kercz, Ronja Hetzel, Sara M\\\"uller, Vitalii Urbanevych, Volkmar Schulz","cross_cats":["physics.ins-det"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.med-ph","submitted_at":"2023-06-22T18:31:30Z","title":"Near-field coded-mask technique and its potential for proton therapy monitoring"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2307.01203","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:a77d65909fc23f141ecf083425101613fbd92003f2cfde9e0d405066b7440fb3","target":"record","created_at":"2026-07-05T07:30:50Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"04d048e8c3fc65bf71a18acfd7ee6f3786f1d1ebcf8fd87cd5aedb6a07adb60f","cross_cats_sorted":["physics.ins-det"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.med-ph","submitted_at":"2023-06-22T18:31:30Z","title_canon_sha256":"8041eb32fea8b7a565c65a619e6c1c64a75f1429a3e7a6c292db8b3c17c3e920"},"schema_version":"1.0","source":{"id":"2307.01203","kind":"arxiv","version":1}},"canonical_sha256":"b809096c52324bd079ae81ca027c9e7e99c6538b854f1155e1c565edbab996cd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b809096c52324bd079ae81ca027c9e7e99c6538b854f1155e1c565edbab996cd","first_computed_at":"2026-07-05T07:30:50.760899Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:30:50.760899Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"v4PRQ7cPtqDrQO0JzxsemFUlTyuT5K2R8VmU4u7uLCMo2cjDQzp5IwJuHt7575qI8DCImxuyUFGYHfKtpJq3BA==","signature_status":"signed_v1","signed_at":"2026-07-05T07:30:50.761305Z","signed_message":"canonical_sha256_bytes"},"source_id":"2307.01203","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a77d65909fc23f141ecf083425101613fbd92003f2cfde9e0d405066b7440fb3","sha256:da81032a26978c8acdaf724fe2621e70795e4eaa9f0291358e355a28fe73946d"],"state_sha256":"76560efebb2fd837c14a6b3b48db297f7695284ae28de249186d513cc0e191aa"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"V/PNxInULuZo7cztDFZ1kh0lhx4awBdvEfpL8MfmcFxRYFWQ0gK9VvegTw5p+5JGsXUdwYEzPLenZ/a4Q47tBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T02:10:52.863084Z","bundle_sha256":"b4648934d4c26677ddce222dcf8348256950860ab39a064ab3b155ae1c400960"}}