{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:KZ4GVQBTPWE2VFRRN67BWJTQAU","short_pith_number":"pith:KZ4GVQBT","canonical_record":{"source":{"id":"1512.08308","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2015-12-28T02:36:43Z","cross_cats_sorted":[],"title_canon_sha256":"277e7757dc3312c29e56175069d93fc842798ef31a716cf5e57a1e66854174d7","abstract_canon_sha256":"94486223c44f0d230e774873ea45abaaba9a20b1acb70eafe44d57975a9064ec"},"schema_version":"1.0"},"canonical_sha256":"56786ac0337d89aa96316fbe1b267005224d3e1bc418ddcd5c5e5e5e6b4af690","source":{"kind":"arxiv","id":"1512.08308","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1512.08308","created_at":"2026-05-18T01:10:07Z"},{"alias_kind":"arxiv_version","alias_value":"1512.08308v1","created_at":"2026-05-18T01:10:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.08308","created_at":"2026-05-18T01:10:07Z"},{"alias_kind":"pith_short_12","alias_value":"KZ4GVQBTPWE2","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_16","alias_value":"KZ4GVQBTPWE2VFRR","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_8","alias_value":"KZ4GVQBT","created_at":"2026-05-18T12:29:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:KZ4GVQBTPWE2VFRRN67BWJTQAU","target":"record","payload":{"canonical_record":{"source":{"id":"1512.08308","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2015-12-28T02:36:43Z","cross_cats_sorted":[],"title_canon_sha256":"277e7757dc3312c29e56175069d93fc842798ef31a716cf5e57a1e66854174d7","abstract_canon_sha256":"94486223c44f0d230e774873ea45abaaba9a20b1acb70eafe44d57975a9064ec"},"schema_version":"1.0"},"canonical_sha256":"56786ac0337d89aa96316fbe1b267005224d3e1bc418ddcd5c5e5e5e6b4af690","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:10:07.727839Z","signature_b64":"bqecsGYrb9YKJTwx3wV0jTGhI8JC7ptkMEtX0+1Z9Wt6q5FV+OE0PTxS15epK3+5evMyvQBTSrfWrqMSO8q5Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"56786ac0337d89aa96316fbe1b267005224d3e1bc418ddcd5c5e5e5e6b4af690","last_reissued_at":"2026-05-18T01:10:07.727298Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:10:07.727298Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1512.08308","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":"2026-05-18T01:10:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pPqk3M5zkMPEmpbRI5zkry661sVkrc1lPhUcHDO+kcWV7I761H+kLfVgjDxPZGuO3AXrs1wW9AakQ3JewlFQCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T01:28:56.816801Z"},"content_sha256":"3f5bd246e0590f6d45fcf339dc7d096a083f9683aa264e0b0bdb29c1e31b2ca7","schema_version":"1.0","event_id":"sha256:3f5bd246e0590f6d45fcf339dc7d096a083f9683aa264e0b0bdb29c1e31b2ca7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:KZ4GVQBTPWE2VFRRN67BWJTQAU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Robust scatter correction method for cone-beam CT using an interlacing-slit plate","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.med-ph","authors_text":"Dinghua Zhang, Hua Zhang, Kuidong Huang, Wenlong Shi, Zhe Xu","submitted_at":"2015-12-28T02:36:43Z","abstract_excerpt":"Cone-beam computed tomography (CBCT) has been widely used in medical imaging and industrial nondestructive testing, but the presence of scattered radiation will cause significant reduction of image quality. In this article, a robust scatter correction method for CBCT using an interlacing-slit plate (ISP) is carried out for convenient practice. Firstly, a Gaussian filtering method is proposed to compensate the missing data of the inner scatter image, and simultaneously avoid too-large values of calculated inner scatter and smooth the inner scatter field. Secondly, an interlacing-slit scan witho"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.08308","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:10:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rKXKCWt8hFZ7Nu4Qko4jt7EOqlw9kd+7c1aaPbY3/wpwGTu912AAypTGxoIz2Y8Zj1d7tTsP4EioWc7qmWIxAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T01:28:56.817470Z"},"content_sha256":"673283e2c65434fe25f992ad509a5e62963df33358e405aa65022239702dc5a6","schema_version":"1.0","event_id":"sha256:673283e2c65434fe25f992ad509a5e62963df33358e405aa65022239702dc5a6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KZ4GVQBTPWE2VFRRN67BWJTQAU/bundle.json","state_url":"https://pith.science/pith/KZ4GVQBTPWE2VFRRN67BWJTQAU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KZ4GVQBTPWE2VFRRN67BWJTQAU/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":"2026-05-26T01:28:56Z","links":{"resolver":"https://pith.science/pith/KZ4GVQBTPWE2VFRRN67BWJTQAU","bundle":"https://pith.science/pith/KZ4GVQBTPWE2VFRRN67BWJTQAU/bundle.json","state":"https://pith.science/pith/KZ4GVQBTPWE2VFRRN67BWJTQAU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KZ4GVQBTPWE2VFRRN67BWJTQAU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:KZ4GVQBTPWE2VFRRN67BWJTQAU","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":"94486223c44f0d230e774873ea45abaaba9a20b1acb70eafe44d57975a9064ec","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2015-12-28T02:36:43Z","title_canon_sha256":"277e7757dc3312c29e56175069d93fc842798ef31a716cf5e57a1e66854174d7"},"schema_version":"1.0","source":{"id":"1512.08308","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1512.08308","created_at":"2026-05-18T01:10:07Z"},{"alias_kind":"arxiv_version","alias_value":"1512.08308v1","created_at":"2026-05-18T01:10:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.08308","created_at":"2026-05-18T01:10:07Z"},{"alias_kind":"pith_short_12","alias_value":"KZ4GVQBTPWE2","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_16","alias_value":"KZ4GVQBTPWE2VFRR","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_8","alias_value":"KZ4GVQBT","created_at":"2026-05-18T12:29:29Z"}],"graph_snapshots":[{"event_id":"sha256:673283e2c65434fe25f992ad509a5e62963df33358e405aa65022239702dc5a6","target":"graph","created_at":"2026-05-18T01:10:07Z","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"},"paper":{"abstract_excerpt":"Cone-beam computed tomography (CBCT) has been widely used in medical imaging and industrial nondestructive testing, but the presence of scattered radiation will cause significant reduction of image quality. In this article, a robust scatter correction method for CBCT using an interlacing-slit plate (ISP) is carried out for convenient practice. Firstly, a Gaussian filtering method is proposed to compensate the missing data of the inner scatter image, and simultaneously avoid too-large values of calculated inner scatter and smooth the inner scatter field. Secondly, an interlacing-slit scan witho","authors_text":"Dinghua Zhang, Hua Zhang, Kuidong Huang, Wenlong Shi, Zhe Xu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2015-12-28T02:36:43Z","title":"Robust scatter correction method for cone-beam CT using an interlacing-slit plate"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.08308","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":"sha256:3f5bd246e0590f6d45fcf339dc7d096a083f9683aa264e0b0bdb29c1e31b2ca7","target":"record","created_at":"2026-05-18T01:10:07Z","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":"94486223c44f0d230e774873ea45abaaba9a20b1acb70eafe44d57975a9064ec","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2015-12-28T02:36:43Z","title_canon_sha256":"277e7757dc3312c29e56175069d93fc842798ef31a716cf5e57a1e66854174d7"},"schema_version":"1.0","source":{"id":"1512.08308","kind":"arxiv","version":1}},"canonical_sha256":"56786ac0337d89aa96316fbe1b267005224d3e1bc418ddcd5c5e5e5e6b4af690","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"56786ac0337d89aa96316fbe1b267005224d3e1bc418ddcd5c5e5e5e6b4af690","first_computed_at":"2026-05-18T01:10:07.727298Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:10:07.727298Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bqecsGYrb9YKJTwx3wV0jTGhI8JC7ptkMEtX0+1Z9Wt6q5FV+OE0PTxS15epK3+5evMyvQBTSrfWrqMSO8q5Bw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:10:07.727839Z","signed_message":"canonical_sha256_bytes"},"source_id":"1512.08308","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3f5bd246e0590f6d45fcf339dc7d096a083f9683aa264e0b0bdb29c1e31b2ca7","sha256:673283e2c65434fe25f992ad509a5e62963df33358e405aa65022239702dc5a6"],"state_sha256":"991bf9b777e75d1ad705ef4778ae5377d4cd1a26da36d0e41394092020a7a995"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"M6ezeTxzPqFL/YGr4nlsV+1W5LKNeFEC8FE2zahXCLDw9t0m4OW7dsQs4xLMR7mvgoMiRB4cPsQrSJ0sy9qlBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T01:28:56.821623Z","bundle_sha256":"dc1d7c930e696e498cbfae1babe2a07dbcaaf10559da359a49b35be48b93b7e7"}}