{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:RKQU2ELMGIFRIVF7R6FWG4JMJI","short_pith_number":"pith:RKQU2ELM","canonical_record":{"source":{"id":"2411.10308","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2024-11-15T16:04:01Z","cross_cats_sorted":["cs.AI","physics.med-ph"],"title_canon_sha256":"aa7aa097d3c863db5650aadff939d91107218edc74310b4d571a7818e88132bf","abstract_canon_sha256":"83f104429062cbd823ab994ce98daef0227aa2ac38d2676ad10d8f7823a30527"},"schema_version":"1.0"},"canonical_sha256":"8aa14d116c320b1454bf8f8b63712c4a2b9d18a259f2e2f83945728eeb9a9942","source":{"kind":"arxiv","id":"2411.10308","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2411.10308","created_at":"2026-07-05T09:36:03Z"},{"alias_kind":"arxiv_version","alias_value":"2411.10308v1","created_at":"2026-07-05T09:36:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2411.10308","created_at":"2026-07-05T09:36:03Z"},{"alias_kind":"pith_short_12","alias_value":"RKQU2ELMGIFR","created_at":"2026-07-05T09:36:03Z"},{"alias_kind":"pith_short_16","alias_value":"RKQU2ELMGIFRIVF7","created_at":"2026-07-05T09:36:03Z"},{"alias_kind":"pith_short_8","alias_value":"RKQU2ELM","created_at":"2026-07-05T09:36:03Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:RKQU2ELMGIFRIVF7R6FWG4JMJI","target":"record","payload":{"canonical_record":{"source":{"id":"2411.10308","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2024-11-15T16:04:01Z","cross_cats_sorted":["cs.AI","physics.med-ph"],"title_canon_sha256":"aa7aa097d3c863db5650aadff939d91107218edc74310b4d571a7818e88132bf","abstract_canon_sha256":"83f104429062cbd823ab994ce98daef0227aa2ac38d2676ad10d8f7823a30527"},"schema_version":"1.0"},"canonical_sha256":"8aa14d116c320b1454bf8f8b63712c4a2b9d18a259f2e2f83945728eeb9a9942","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:36:03.245947Z","signature_b64":"faOm9Ozf6dkd/oewtuOSl+l8azDsXQ9N3YLR/M1Jtr8KBl3QlODrzINDFyLmBi/fVeh6sO/0dLGltpUPEjZeAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8aa14d116c320b1454bf8f8b63712c4a2b9d18a259f2e2f83945728eeb9a9942","last_reissued_at":"2026-07-05T09:36:03.245378Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:36:03.245378Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2411.10308","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":"2026-07-05T09:36:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/nOH9Mh3CuLW787CParjRmVcwdXeEM8BX/o5LSzZlN1j0K2Lh06trp0D/Xqwxdw0J293MvHkQMsGRPgnyysFDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T11:56:45.968473Z"},"content_sha256":"4d75c2d9c8e486a1ffdc87228ceba9067b91472addef2f9103021c1cc6b251f8","schema_version":"1.0","event_id":"sha256:4d75c2d9c8e486a1ffdc87228ceba9067b91472addef2f9103021c1cc6b251f8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:RKQU2ELMGIFRIVF7R6FWG4JMJI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Realistic Collimated X-Ray Image Simulation Pipeline","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.AI","physics.med-ph"],"primary_cat":"cs.CV","authors_text":"Andreas Maier, Benjamin El-Zein, Dominik Eckert, Ludwig Ritschl, Maximilian Rohleder, Steffen Kappler, Thomas Weber","submitted_at":"2024-11-15T16:04:01Z","abstract_excerpt":"Collimator detection remains a challenging task in X-ray systems with unreliable or non-available information about the detectors position relative to the source. This paper presents a physically motivated image processing pipeline for simulating the characteristics of collimator shadows in X-ray images. By generating randomized labels for collimator shapes and locations, incorporating scattered radiation simulation, and including Poisson noise, the pipeline enables the expansion of limited datasets for training deep neural networks. We validate the proposed pipeline by a qualitative and quant"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2411.10308","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/2411.10308/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":"2026-07-05T09:36:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"meXwnu3UMlLSR72MZjVHpuS9jHIJIKheZwb6tfUwymrjCzQfi7gtpi212tKQPZNGT8OBB4sYlSwYDowxeSW2Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T11:56:45.968851Z"},"content_sha256":"e751afe28faff08738646152cca10053a251f2907116e36dade89f55356a39aa","schema_version":"1.0","event_id":"sha256:e751afe28faff08738646152cca10053a251f2907116e36dade89f55356a39aa"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RKQU2ELMGIFRIVF7R6FWG4JMJI/bundle.json","state_url":"https://pith.science/pith/RKQU2ELMGIFRIVF7R6FWG4JMJI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RKQU2ELMGIFRIVF7R6FWG4JMJI/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":"2026-07-07T11:56:45Z","links":{"resolver":"https://pith.science/pith/RKQU2ELMGIFRIVF7R6FWG4JMJI","bundle":"https://pith.science/pith/RKQU2ELMGIFRIVF7R6FWG4JMJI/bundle.json","state":"https://pith.science/pith/RKQU2ELMGIFRIVF7R6FWG4JMJI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RKQU2ELMGIFRIVF7R6FWG4JMJI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:RKQU2ELMGIFRIVF7R6FWG4JMJI","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":"83f104429062cbd823ab994ce98daef0227aa2ac38d2676ad10d8f7823a30527","cross_cats_sorted":["cs.AI","physics.med-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2024-11-15T16:04:01Z","title_canon_sha256":"aa7aa097d3c863db5650aadff939d91107218edc74310b4d571a7818e88132bf"},"schema_version":"1.0","source":{"id":"2411.10308","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2411.10308","created_at":"2026-07-05T09:36:03Z"},{"alias_kind":"arxiv_version","alias_value":"2411.10308v1","created_at":"2026-07-05T09:36:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2411.10308","created_at":"2026-07-05T09:36:03Z"},{"alias_kind":"pith_short_12","alias_value":"RKQU2ELMGIFR","created_at":"2026-07-05T09:36:03Z"},{"alias_kind":"pith_short_16","alias_value":"RKQU2ELMGIFRIVF7","created_at":"2026-07-05T09:36:03Z"},{"alias_kind":"pith_short_8","alias_value":"RKQU2ELM","created_at":"2026-07-05T09:36:03Z"}],"graph_snapshots":[{"event_id":"sha256:e751afe28faff08738646152cca10053a251f2907116e36dade89f55356a39aa","target":"graph","created_at":"2026-07-05T09:36:03Z","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/2411.10308/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Collimator detection remains a challenging task in X-ray systems with unreliable or non-available information about the detectors position relative to the source. This paper presents a physically motivated image processing pipeline for simulating the characteristics of collimator shadows in X-ray images. By generating randomized labels for collimator shapes and locations, incorporating scattered radiation simulation, and including Poisson noise, the pipeline enables the expansion of limited datasets for training deep neural networks. We validate the proposed pipeline by a qualitative and quant","authors_text":"Andreas Maier, Benjamin El-Zein, Dominik Eckert, Ludwig Ritschl, Maximilian Rohleder, Steffen Kappler, Thomas Weber","cross_cats":["cs.AI","physics.med-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2024-11-15T16:04:01Z","title":"A Realistic Collimated X-Ray Image Simulation Pipeline"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2411.10308","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":"sha256:4d75c2d9c8e486a1ffdc87228ceba9067b91472addef2f9103021c1cc6b251f8","target":"record","created_at":"2026-07-05T09:36:03Z","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":"83f104429062cbd823ab994ce98daef0227aa2ac38d2676ad10d8f7823a30527","cross_cats_sorted":["cs.AI","physics.med-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2024-11-15T16:04:01Z","title_canon_sha256":"aa7aa097d3c863db5650aadff939d91107218edc74310b4d571a7818e88132bf"},"schema_version":"1.0","source":{"id":"2411.10308","kind":"arxiv","version":1}},"canonical_sha256":"8aa14d116c320b1454bf8f8b63712c4a2b9d18a259f2e2f83945728eeb9a9942","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8aa14d116c320b1454bf8f8b63712c4a2b9d18a259f2e2f83945728eeb9a9942","first_computed_at":"2026-07-05T09:36:03.245378Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:36:03.245378Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"faOm9Ozf6dkd/oewtuOSl+l8azDsXQ9N3YLR/M1Jtr8KBl3QlODrzINDFyLmBi/fVeh6sO/0dLGltpUPEjZeAw==","signature_status":"signed_v1","signed_at":"2026-07-05T09:36:03.245947Z","signed_message":"canonical_sha256_bytes"},"source_id":"2411.10308","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4d75c2d9c8e486a1ffdc87228ceba9067b91472addef2f9103021c1cc6b251f8","sha256:e751afe28faff08738646152cca10053a251f2907116e36dade89f55356a39aa"],"state_sha256":"76071a601c8961c5c5c524dfadf7100cbe83356e653bd64f679082f81b52ec3a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NQb6nCJCn4Vbizt4e/XszAYhe0rL9iE8tOC3cniSvTcQNYCEDKjZetVShd/G+P/8w/Qix4rv4QSv4I/ZZ1tCCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T11:56:45.970796Z","bundle_sha256":"8002987c287c1c60fc4979cdcfa7328b430ddd1649846612679350c83c8e2a9c"}}