{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:X2DQVYMQEPNGMHW4BPY3B2VU2S","short_pith_number":"pith:X2DQVYMQ","canonical_record":{"source":{"id":"2404.01553","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2024-04-02T01:38:19Z","cross_cats_sorted":[],"title_canon_sha256":"dbadc3cf901c89668684b60f09fa82d7692b4b26b9719fd3cd71329e88945b2d","abstract_canon_sha256":"cc3118f8cbf03352f354d5b306985f691d55a553aac9538536b03d5c78f2b07b"},"schema_version":"1.0"},"canonical_sha256":"be870ae19023da661edc0bf1b0eab4d496ea2b97eaf500df004f5d6ffc725f65","source":{"kind":"arxiv","id":"2404.01553","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2404.01553","created_at":"2026-07-05T08:03:15Z"},{"alias_kind":"arxiv_version","alias_value":"2404.01553v1","created_at":"2026-07-05T08:03:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2404.01553","created_at":"2026-07-05T08:03:15Z"},{"alias_kind":"pith_short_12","alias_value":"X2DQVYMQEPNG","created_at":"2026-07-05T08:03:15Z"},{"alias_kind":"pith_short_16","alias_value":"X2DQVYMQEPNGMHW4","created_at":"2026-07-05T08:03:15Z"},{"alias_kind":"pith_short_8","alias_value":"X2DQVYMQ","created_at":"2026-07-05T08:03:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:X2DQVYMQEPNGMHW4BPY3B2VU2S","target":"record","payload":{"canonical_record":{"source":{"id":"2404.01553","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2024-04-02T01:38:19Z","cross_cats_sorted":[],"title_canon_sha256":"dbadc3cf901c89668684b60f09fa82d7692b4b26b9719fd3cd71329e88945b2d","abstract_canon_sha256":"cc3118f8cbf03352f354d5b306985f691d55a553aac9538536b03d5c78f2b07b"},"schema_version":"1.0"},"canonical_sha256":"be870ae19023da661edc0bf1b0eab4d496ea2b97eaf500df004f5d6ffc725f65","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:03:15.728064Z","signature_b64":"lV87JE4raEQwVEyHUBnzQNL9kv9vT9nMgf2NkDKlvMKT9ToT/oSDcqCMKwxMRZmI38hRrGbiI5AvDH7OsGDECA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"be870ae19023da661edc0bf1b0eab4d496ea2b97eaf500df004f5d6ffc725f65","last_reissued_at":"2026-07-05T08:03:15.727617Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:03:15.727617Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2404.01553","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":"2026-07-05T08:03:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VmgIPHcy1o36+aRtTWqfdrkzpTDf6vbL+ndzJPb5jcOrFmiiNrvmkkgjjg6JM4U1rCPnTlPA1I9rSj9wXnARDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T09:47:56.327483Z"},"content_sha256":"abc578de3c3496291927a58c46f383a074c20f6a31e91240552abf248b4a58e9","schema_version":"1.0","event_id":"sha256:abc578de3c3496291927a58c46f383a074c20f6a31e91240552abf248b4a58e9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:X2DQVYMQEPNGMHW4BPY3B2VU2S","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A CT Image Denoising Method with Residual Encoder-Decoder Network","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"eess.IV","authors_text":"Christina Chajo, Helena Shawn, Jacob Lanet, Jim Zhao, Lam-chi Chen, Thompson Chyrikov","submitted_at":"2024-04-02T01:38:19Z","abstract_excerpt":"Utilizing a low-dose CT approach significantly reduces the radiation exposure for patients, yet it introduces challenges, such as increased noise and artifacts in the resultant images, which can hinder accurate medical diagnostics. Traditional methods for noise reduction struggle with preserving image textures due to the complexity of modeling statistical properties directly within the image domain. To address these limitations, this study introduces an enhanced noise-reduction technique centered around an advanced residual encoder-decoder network. By incorporating recursive processing into th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2404.01553","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/2404.01553/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":"2026-07-05T08:03:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rhfqyOidUjFEnc+XuODurlWCQrBMvNyQP8Y6WfnQGf7pIy0rGxAVw2pjjMxonAd5vFqWUJN73m7XTRDtpYADCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T09:47:56.327963Z"},"content_sha256":"c7b34df9d2691780af001b6be570da41a802eb57108100f10b2095225fc4ab06","schema_version":"1.0","event_id":"sha256:c7b34df9d2691780af001b6be570da41a802eb57108100f10b2095225fc4ab06"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/X2DQVYMQEPNGMHW4BPY3B2VU2S/bundle.json","state_url":"https://pith.science/pith/X2DQVYMQEPNGMHW4BPY3B2VU2S/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/X2DQVYMQEPNGMHW4BPY3B2VU2S/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":"2026-08-09T09:47:56Z","links":{"resolver":"https://pith.science/pith/X2DQVYMQEPNGMHW4BPY3B2VU2S","bundle":"https://pith.science/pith/X2DQVYMQEPNGMHW4BPY3B2VU2S/bundle.json","state":"https://pith.science/pith/X2DQVYMQEPNGMHW4BPY3B2VU2S/state.json","well_known_bundle":"https://pith.science/.well-known/pith/X2DQVYMQEPNGMHW4BPY3B2VU2S/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:X2DQVYMQEPNGMHW4BPY3B2VU2S","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":"cc3118f8cbf03352f354d5b306985f691d55a553aac9538536b03d5c78f2b07b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2024-04-02T01:38:19Z","title_canon_sha256":"dbadc3cf901c89668684b60f09fa82d7692b4b26b9719fd3cd71329e88945b2d"},"schema_version":"1.0","source":{"id":"2404.01553","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2404.01553","created_at":"2026-07-05T08:03:15Z"},{"alias_kind":"arxiv_version","alias_value":"2404.01553v1","created_at":"2026-07-05T08:03:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2404.01553","created_at":"2026-07-05T08:03:15Z"},{"alias_kind":"pith_short_12","alias_value":"X2DQVYMQEPNG","created_at":"2026-07-05T08:03:15Z"},{"alias_kind":"pith_short_16","alias_value":"X2DQVYMQEPNGMHW4","created_at":"2026-07-05T08:03:15Z"},{"alias_kind":"pith_short_8","alias_value":"X2DQVYMQ","created_at":"2026-07-05T08:03:15Z"}],"graph_snapshots":[{"event_id":"sha256:c7b34df9d2691780af001b6be570da41a802eb57108100f10b2095225fc4ab06","target":"graph","created_at":"2026-07-05T08:03:15Z","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/2404.01553/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Utilizing a low-dose CT approach significantly reduces the radiation exposure for patients, yet it introduces challenges, such as increased noise and artifacts in the resultant images, which can hinder accurate medical diagnostics. Traditional methods for noise reduction struggle with preserving image textures due to the complexity of modeling statistical properties directly within the image domain. To address these limitations, this study introduces an enhanced noise-reduction technique centered around an advanced residual encoder-decoder network. By incorporating recursive processing into th","authors_text":"Christina Chajo, Helena Shawn, Jacob Lanet, Jim Zhao, Lam-chi Chen, Thompson Chyrikov","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2024-04-02T01:38:19Z","title":"A CT Image Denoising Method with Residual Encoder-Decoder Network"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2404.01553","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:abc578de3c3496291927a58c46f383a074c20f6a31e91240552abf248b4a58e9","target":"record","created_at":"2026-07-05T08:03:15Z","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":"cc3118f8cbf03352f354d5b306985f691d55a553aac9538536b03d5c78f2b07b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2024-04-02T01:38:19Z","title_canon_sha256":"dbadc3cf901c89668684b60f09fa82d7692b4b26b9719fd3cd71329e88945b2d"},"schema_version":"1.0","source":{"id":"2404.01553","kind":"arxiv","version":1}},"canonical_sha256":"be870ae19023da661edc0bf1b0eab4d496ea2b97eaf500df004f5d6ffc725f65","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"be870ae19023da661edc0bf1b0eab4d496ea2b97eaf500df004f5d6ffc725f65","first_computed_at":"2026-07-05T08:03:15.727617Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:03:15.727617Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lV87JE4raEQwVEyHUBnzQNL9kv9vT9nMgf2NkDKlvMKT9ToT/oSDcqCMKwxMRZmI38hRrGbiI5AvDH7OsGDECA==","signature_status":"signed_v1","signed_at":"2026-07-05T08:03:15.728064Z","signed_message":"canonical_sha256_bytes"},"source_id":"2404.01553","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:abc578de3c3496291927a58c46f383a074c20f6a31e91240552abf248b4a58e9","sha256:c7b34df9d2691780af001b6be570da41a802eb57108100f10b2095225fc4ab06"],"state_sha256":"249e1ee18f96744544a0f5b7a6f86cf4ecf7b3e3b2b06d59b5f9915670b26a56"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"a/tuP7cJfyXYXDOC6we4BXsqTIU/6sf4/2DeZMZkPxqxHdVkAG3/BXOAFl2vzwM1WRB2jfLqdfbzZexb0JxPBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-09T09:47:56.332311Z","bundle_sha256":"4e7d4d4eb1ae2f075d6e940955384674fb32c0e7843e27578a9975694b8789a7"}}