{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:D35LJLHZEQX6RW2JS2LUNCT4JR","short_pith_number":"pith:D35LJLHZ","canonical_record":{"source":{"id":"2509.08934","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2025-09-10T18:58:45Z","cross_cats_sorted":[],"title_canon_sha256":"fd44bab495bf2d39d1e1d136afcec79019f06f7422b0fdd162f6c29f0ad855ee","abstract_canon_sha256":"bbbf44df67405505c755cdc1239bbf0677877bc394fa97522b8c790ff7baea05"},"schema_version":"1.0"},"canonical_sha256":"1efab4acf9242fe8db499697468a7c4c5f96a4062e15eff388587a31891728fc","source":{"kind":"arxiv","id":"2509.08934","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2509.08934","created_at":"2026-07-05T12:09:46Z"},{"alias_kind":"arxiv_version","alias_value":"2509.08934v2","created_at":"2026-07-05T12:09:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2509.08934","created_at":"2026-07-05T12:09:46Z"},{"alias_kind":"pith_short_12","alias_value":"D35LJLHZEQX6","created_at":"2026-07-05T12:09:46Z"},{"alias_kind":"pith_short_16","alias_value":"D35LJLHZEQX6RW2J","created_at":"2026-07-05T12:09:46Z"},{"alias_kind":"pith_short_8","alias_value":"D35LJLHZ","created_at":"2026-07-05T12:09:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:D35LJLHZEQX6RW2JS2LUNCT4JR","target":"record","payload":{"canonical_record":{"source":{"id":"2509.08934","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2025-09-10T18:58:45Z","cross_cats_sorted":[],"title_canon_sha256":"fd44bab495bf2d39d1e1d136afcec79019f06f7422b0fdd162f6c29f0ad855ee","abstract_canon_sha256":"bbbf44df67405505c755cdc1239bbf0677877bc394fa97522b8c790ff7baea05"},"schema_version":"1.0"},"canonical_sha256":"1efab4acf9242fe8db499697468a7c4c5f96a4062e15eff388587a31891728fc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T12:09:46.658447Z","signature_b64":"V/McQtUepbwolR6N4nhGf1mDO9TRWRwR8Lf+AyTKNb5+UBohniD4f/hrmH7MG9ZtzjFhHoPnqnHVmTv18tcUCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1efab4acf9242fe8db499697468a7c4c5f96a4062e15eff388587a31891728fc","last_reissued_at":"2026-07-05T12:09:46.657954Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T12:09:46.657954Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2509.08934","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T12:09:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nSBubUZip9L2rnCG7eyN7bONbW0xf6Haw4YKIRKfPBE1cgbbCIZnUH1VKbLlvwxeVD0Goi0F8NBxfYZANJvWBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T03:40:46.165871Z"},"content_sha256":"655041d06fafcbd419974b25c8433a9b2e1327e044ddcc3b988f168b0f6b5730","schema_version":"1.0","event_id":"sha256:655041d06fafcbd419974b25c8433a9b2e1327e044ddcc3b988f168b0f6b5730"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:D35LJLHZEQX6RW2JS2LUNCT4JR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"SFD-Mamba2Net: Structure-Guided Frequency-Enhanced Dual-Stream Mamba2 Network for Coronary Artery Segmentation","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Chen Zhao, Jingfeng Jiang, Nan Mu, Ruiqi Song, Zhihui Xu","submitted_at":"2025-09-10T18:58:45Z","abstract_excerpt":"Background: Coronary Artery Disease (CAD) is one of the leading causes of death worldwide. Invasive Coronary Angiography (ICA), regarded as the gold standard for CAD diagnosis, necessitates precise vessel segmentation and stenosis detection. However, ICA images are typically characterized by low contrast, high noise levels, and complex, fine-grained vascular structures, which pose significant challenges to the clinical adoption of existing segmentation and detection methods. Objective: This study aims to improve the accuracy of coronary artery segmentation and stenosis detection in ICA images "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2509.08934","kind":"arxiv","version":2},"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/2509.08934/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":"2026-07-05T12:09:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/Y0oLipbxS/PXgUNlNTXBZRIHly5YlQTP3Y3g/+0VLxx4O6LYcu12S/8bZ5dM9aTpotHTG1Y/9HRElA+K1V/Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T03:40:46.166370Z"},"content_sha256":"1b7edf6460666e9f9b9b84975567fac2e3321eb1bc609c9918186a8cf7a4ed31","schema_version":"1.0","event_id":"sha256:1b7edf6460666e9f9b9b84975567fac2e3321eb1bc609c9918186a8cf7a4ed31"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/D35LJLHZEQX6RW2JS2LUNCT4JR/bundle.json","state_url":"https://pith.science/pith/D35LJLHZEQX6RW2JS2LUNCT4JR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/D35LJLHZEQX6RW2JS2LUNCT4JR/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":"2026-08-06T03:40:46Z","links":{"resolver":"https://pith.science/pith/D35LJLHZEQX6RW2JS2LUNCT4JR","bundle":"https://pith.science/pith/D35LJLHZEQX6RW2JS2LUNCT4JR/bundle.json","state":"https://pith.science/pith/D35LJLHZEQX6RW2JS2LUNCT4JR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/D35LJLHZEQX6RW2JS2LUNCT4JR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:D35LJLHZEQX6RW2JS2LUNCT4JR","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":"bbbf44df67405505c755cdc1239bbf0677877bc394fa97522b8c790ff7baea05","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2025-09-10T18:58:45Z","title_canon_sha256":"fd44bab495bf2d39d1e1d136afcec79019f06f7422b0fdd162f6c29f0ad855ee"},"schema_version":"1.0","source":{"id":"2509.08934","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2509.08934","created_at":"2026-07-05T12:09:46Z"},{"alias_kind":"arxiv_version","alias_value":"2509.08934v2","created_at":"2026-07-05T12:09:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2509.08934","created_at":"2026-07-05T12:09:46Z"},{"alias_kind":"pith_short_12","alias_value":"D35LJLHZEQX6","created_at":"2026-07-05T12:09:46Z"},{"alias_kind":"pith_short_16","alias_value":"D35LJLHZEQX6RW2J","created_at":"2026-07-05T12:09:46Z"},{"alias_kind":"pith_short_8","alias_value":"D35LJLHZ","created_at":"2026-07-05T12:09:46Z"}],"graph_snapshots":[{"event_id":"sha256:1b7edf6460666e9f9b9b84975567fac2e3321eb1bc609c9918186a8cf7a4ed31","target":"graph","created_at":"2026-07-05T12:09:46Z","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/2509.08934/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Background: Coronary Artery Disease (CAD) is one of the leading causes of death worldwide. Invasive Coronary Angiography (ICA), regarded as the gold standard for CAD diagnosis, necessitates precise vessel segmentation and stenosis detection. However, ICA images are typically characterized by low contrast, high noise levels, and complex, fine-grained vascular structures, which pose significant challenges to the clinical adoption of existing segmentation and detection methods. Objective: This study aims to improve the accuracy of coronary artery segmentation and stenosis detection in ICA images ","authors_text":"Chen Zhao, Jingfeng Jiang, Nan Mu, Ruiqi Song, Zhihui Xu","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2025-09-10T18:58:45Z","title":"SFD-Mamba2Net: Structure-Guided Frequency-Enhanced Dual-Stream Mamba2 Network for Coronary Artery Segmentation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2509.08934","kind":"arxiv","version":2},"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":"sha256:655041d06fafcbd419974b25c8433a9b2e1327e044ddcc3b988f168b0f6b5730","target":"record","created_at":"2026-07-05T12:09:46Z","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":"bbbf44df67405505c755cdc1239bbf0677877bc394fa97522b8c790ff7baea05","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2025-09-10T18:58:45Z","title_canon_sha256":"fd44bab495bf2d39d1e1d136afcec79019f06f7422b0fdd162f6c29f0ad855ee"},"schema_version":"1.0","source":{"id":"2509.08934","kind":"arxiv","version":2}},"canonical_sha256":"1efab4acf9242fe8db499697468a7c4c5f96a4062e15eff388587a31891728fc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1efab4acf9242fe8db499697468a7c4c5f96a4062e15eff388587a31891728fc","first_computed_at":"2026-07-05T12:09:46.657954Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T12:09:46.657954Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"V/McQtUepbwolR6N4nhGf1mDO9TRWRwR8Lf+AyTKNb5+UBohniD4f/hrmH7MG9ZtzjFhHoPnqnHVmTv18tcUCw==","signature_status":"signed_v1","signed_at":"2026-07-05T12:09:46.658447Z","signed_message":"canonical_sha256_bytes"},"source_id":"2509.08934","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:655041d06fafcbd419974b25c8433a9b2e1327e044ddcc3b988f168b0f6b5730","sha256:1b7edf6460666e9f9b9b84975567fac2e3321eb1bc609c9918186a8cf7a4ed31"],"state_sha256":"c8c56757838e85c99ed5aca16920597b7bf655ce82e5540751c76176839e5e00"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MDiQAeGNgdMcJEXI0CabvKWs1RXyXh28q2DL0zdYxouSDtccrr63govRbJcS4b4deS4cIuwN64GjaDNoxTeUCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T03:40:46.171854Z","bundle_sha256":"10377236b53368e19bc5c43f75f3e71270a067a71fbe2cadf2bed71f9974e609"}}