{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:VVOFELNL6NPEB7WRZV3DJ3KJUK","short_pith_number":"pith:VVOFELNL","canonical_record":{"source":{"id":"2411.19559","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2024-11-29T09:12:37Z","cross_cats_sorted":[],"title_canon_sha256":"4b9694a60f63f9b92cf16dd7d5d66f75d99a7348e051468bb4cb79cae44c390c","abstract_canon_sha256":"6261cc481035d3933edf3164bacadf5ca240f06d9bd7f104ba575bda497ec596"},"schema_version":"1.0"},"canonical_sha256":"ad5c522dabf35e40fed1cd7634ed49a2bcb28ba9afa1cf56a4cf5ecc33916a16","source":{"kind":"arxiv","id":"2411.19559","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2411.19559","created_at":"2026-07-05T09:42:04Z"},{"alias_kind":"arxiv_version","alias_value":"2411.19559v1","created_at":"2026-07-05T09:42:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2411.19559","created_at":"2026-07-05T09:42:04Z"},{"alias_kind":"pith_short_12","alias_value":"VVOFELNL6NPE","created_at":"2026-07-05T09:42:04Z"},{"alias_kind":"pith_short_16","alias_value":"VVOFELNL6NPEB7WR","created_at":"2026-07-05T09:42:04Z"},{"alias_kind":"pith_short_8","alias_value":"VVOFELNL","created_at":"2026-07-05T09:42:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:VVOFELNL6NPEB7WRZV3DJ3KJUK","target":"record","payload":{"canonical_record":{"source":{"id":"2411.19559","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2024-11-29T09:12:37Z","cross_cats_sorted":[],"title_canon_sha256":"4b9694a60f63f9b92cf16dd7d5d66f75d99a7348e051468bb4cb79cae44c390c","abstract_canon_sha256":"6261cc481035d3933edf3164bacadf5ca240f06d9bd7f104ba575bda497ec596"},"schema_version":"1.0"},"canonical_sha256":"ad5c522dabf35e40fed1cd7634ed49a2bcb28ba9afa1cf56a4cf5ecc33916a16","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:42:04.462342Z","signature_b64":"18kPwuxRR91Pjpjqe8yEKgfayMf7VRKqVZrrrtih8hZP8fAPE96ia/841mnPDnTUduUgywZUIbzt94AwPkOEBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ad5c522dabf35e40fed1cd7634ed49a2bcb28ba9afa1cf56a4cf5ecc33916a16","last_reissued_at":"2026-07-05T09:42:04.461829Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:42:04.461829Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2411.19559","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":"2026-07-05T09:42:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iaCZsgk1yi2ovvXIyX/tWYrHSZIPzlDdiPuVx7ZU9FiBTfCXDtCyhrEsrPfQHAMSnCTzXyONQ/nQ4kmnynIaDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T14:12:11.654347Z"},"content_sha256":"1a0c3ca78704dcea1f54588fb8cf2041fbaa191e453c99596d5199b7f14dd5a5","schema_version":"1.0","event_id":"sha256:1a0c3ca78704dcea1f54588fb8cf2041fbaa191e453c99596d5199b7f14dd5a5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:VVOFELNL6NPEB7WRZV3DJ3KJUK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Artifact Correction in Magnetic Resonance Temperature Imaging for Laser Interstitial Thermotherapy with Multi-echo Acquisitions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.med-ph","authors_text":"Guangzhi Wang, Hao Sun, Hua Guo, Jianjun Bai, Meng Han, Sisi Li, Wenbo Liu, Wenbo Lv, Xiu Wang, Yawei Kuang, Yuancheng Jiang, Ziyi Pan","submitted_at":"2024-11-29T09:12:37Z","abstract_excerpt":"In MRI-guided laser interstitial thermotherapy (MRgLITT), a signal void sometimes appears at the heating center of the measured temperature map. In neurosurgical MRgLITT treatments, cerebrospinal fluid pulsation (CSF), which may lead to temperature artifacts, also needs to be carefully managed. We find that signal loss in MR magnitude images can be one distinct contributor to the temperature imaging signal void. Therefore, this study aims to investigate this finding and more importantly. Also, this study intends to improve measurement accuracy by correcting CSF-induced temperature errors and e"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2411.19559","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/2411.19559/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":"2026-07-05T09:42:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JULaD9W90DKwCx7A9l+roQ55BRZdw9rZWh+ezzxl0tIU0pveM7rtYGPlUwi56S7iOFaC+Ea4BMspwQ0XQE+iCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T14:12:11.655008Z"},"content_sha256":"17903def9ca72eefabbe9d5db499362721f8c34ebe44d4d8e5d896acf7fd495d","schema_version":"1.0","event_id":"sha256:17903def9ca72eefabbe9d5db499362721f8c34ebe44d4d8e5d896acf7fd495d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VVOFELNL6NPEB7WRZV3DJ3KJUK/bundle.json","state_url":"https://pith.science/pith/VVOFELNL6NPEB7WRZV3DJ3KJUK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VVOFELNL6NPEB7WRZV3DJ3KJUK/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":"2026-08-07T14:12:11Z","links":{"resolver":"https://pith.science/pith/VVOFELNL6NPEB7WRZV3DJ3KJUK","bundle":"https://pith.science/pith/VVOFELNL6NPEB7WRZV3DJ3KJUK/bundle.json","state":"https://pith.science/pith/VVOFELNL6NPEB7WRZV3DJ3KJUK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VVOFELNL6NPEB7WRZV3DJ3KJUK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:VVOFELNL6NPEB7WRZV3DJ3KJUK","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":"6261cc481035d3933edf3164bacadf5ca240f06d9bd7f104ba575bda497ec596","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2024-11-29T09:12:37Z","title_canon_sha256":"4b9694a60f63f9b92cf16dd7d5d66f75d99a7348e051468bb4cb79cae44c390c"},"schema_version":"1.0","source":{"id":"2411.19559","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2411.19559","created_at":"2026-07-05T09:42:04Z"},{"alias_kind":"arxiv_version","alias_value":"2411.19559v1","created_at":"2026-07-05T09:42:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2411.19559","created_at":"2026-07-05T09:42:04Z"},{"alias_kind":"pith_short_12","alias_value":"VVOFELNL6NPE","created_at":"2026-07-05T09:42:04Z"},{"alias_kind":"pith_short_16","alias_value":"VVOFELNL6NPEB7WR","created_at":"2026-07-05T09:42:04Z"},{"alias_kind":"pith_short_8","alias_value":"VVOFELNL","created_at":"2026-07-05T09:42:04Z"}],"graph_snapshots":[{"event_id":"sha256:17903def9ca72eefabbe9d5db499362721f8c34ebe44d4d8e5d896acf7fd495d","target":"graph","created_at":"2026-07-05T09:42:04Z","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/2411.19559/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In MRI-guided laser interstitial thermotherapy (MRgLITT), a signal void sometimes appears at the heating center of the measured temperature map. In neurosurgical MRgLITT treatments, cerebrospinal fluid pulsation (CSF), which may lead to temperature artifacts, also needs to be carefully managed. We find that signal loss in MR magnitude images can be one distinct contributor to the temperature imaging signal void. Therefore, this study aims to investigate this finding and more importantly. Also, this study intends to improve measurement accuracy by correcting CSF-induced temperature errors and e","authors_text":"Guangzhi Wang, Hao Sun, Hua Guo, Jianjun Bai, Meng Han, Sisi Li, Wenbo Liu, Wenbo Lv, Xiu Wang, Yawei Kuang, Yuancheng Jiang, Ziyi Pan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2024-11-29T09:12:37Z","title":"Artifact Correction in Magnetic Resonance Temperature Imaging for Laser Interstitial Thermotherapy with Multi-echo Acquisitions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2411.19559","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":"sha256:1a0c3ca78704dcea1f54588fb8cf2041fbaa191e453c99596d5199b7f14dd5a5","target":"record","created_at":"2026-07-05T09:42:04Z","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":"6261cc481035d3933edf3164bacadf5ca240f06d9bd7f104ba575bda497ec596","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2024-11-29T09:12:37Z","title_canon_sha256":"4b9694a60f63f9b92cf16dd7d5d66f75d99a7348e051468bb4cb79cae44c390c"},"schema_version":"1.0","source":{"id":"2411.19559","kind":"arxiv","version":1}},"canonical_sha256":"ad5c522dabf35e40fed1cd7634ed49a2bcb28ba9afa1cf56a4cf5ecc33916a16","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ad5c522dabf35e40fed1cd7634ed49a2bcb28ba9afa1cf56a4cf5ecc33916a16","first_computed_at":"2026-07-05T09:42:04.461829Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:42:04.461829Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"18kPwuxRR91Pjpjqe8yEKgfayMf7VRKqVZrrrtih8hZP8fAPE96ia/841mnPDnTUduUgywZUIbzt94AwPkOEBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T09:42:04.462342Z","signed_message":"canonical_sha256_bytes"},"source_id":"2411.19559","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1a0c3ca78704dcea1f54588fb8cf2041fbaa191e453c99596d5199b7f14dd5a5","sha256:17903def9ca72eefabbe9d5db499362721f8c34ebe44d4d8e5d896acf7fd495d"],"state_sha256":"2fbe161d2551e7712c477ab249684c9ddb9f803081bd9a69a92c132edbdf6870"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yL0ihCDYAVDBiu1SfRc10pW9FL63qhIOF6EGXostI28sbbP6Ki+kMCSx8+o2B6HoZwoppOPFbd1yKKyOjO0TBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T14:12:11.659866Z","bundle_sha256":"c85e496572e4964c948562274f0f0634ad8a35738db533b0d2232234383ba4c8"}}