{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:VVZEREDDCJWFHTO6G56PGOSIEC","short_pith_number":"pith:VVZEREDD","canonical_record":{"source":{"id":"2607.22749","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2026-07-23T09:59:30Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"e235b2a6290823b1bcebb9a305330a179be2878a2e5dc45612611179e3e177df","abstract_canon_sha256":"757ea7eabcd9b5394f57186b6af182e04a042741efc285078d6297399dbe0bf2"},"schema_version":"1.0"},"canonical_sha256":"ad72489063126c53cdde377cf33a4820804626e986dbdd3a47374e62dc88c03f","source":{"kind":"arxiv","id":"2607.22749","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.22749","created_at":"2026-07-28T00:21:52Z"},{"alias_kind":"arxiv_version","alias_value":"2607.22749v1","created_at":"2026-07-28T00:21:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.22749","created_at":"2026-07-28T00:21:52Z"},{"alias_kind":"pith_short_12","alias_value":"VVZEREDDCJWF","created_at":"2026-07-28T00:21:52Z"},{"alias_kind":"pith_short_16","alias_value":"VVZEREDDCJWFHTO6","created_at":"2026-07-28T00:21:52Z"},{"alias_kind":"pith_short_8","alias_value":"VVZEREDD","created_at":"2026-07-28T00:21:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:VVZEREDDCJWFHTO6G56PGOSIEC","target":"record","payload":{"canonical_record":{"source":{"id":"2607.22749","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2026-07-23T09:59:30Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"e235b2a6290823b1bcebb9a305330a179be2878a2e5dc45612611179e3e177df","abstract_canon_sha256":"757ea7eabcd9b5394f57186b6af182e04a042741efc285078d6297399dbe0bf2"},"schema_version":"1.0"},"canonical_sha256":"ad72489063126c53cdde377cf33a4820804626e986dbdd3a47374e62dc88c03f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-28T00:21:52.571440Z","signature_b64":"wiwlvDAVVVGLKBTwbZHrFLwp1KNvzJnj/f07XT/hrhiuHuZc3S2bM7XCOWDuwkCtJq/uJE4sXdJGuXQkIlulAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ad72489063126c53cdde377cf33a4820804626e986dbdd3a47374e62dc88c03f","last_reissued_at":"2026-07-28T00:21:52.570501Z","signature_status":"signed_v1","first_computed_at":"2026-07-28T00:21:52.570501Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.22749","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":"2026-07-28T00:21:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vVoxAunuX88Dv9F0N5venoqn2lxxeXiYhdGz/VeTRbdgxgYcsUR82/xoBNywNLZnKRtn9VmF57kcElxmczcoAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T15:38:12.473473Z"},"content_sha256":"c794af00a9e9ec663793c35989dd878a7cfac4eb76bcc67441b79d0b094bab3a","schema_version":"1.0","event_id":"sha256:c794af00a9e9ec663793c35989dd878a7cfac4eb76bcc67441b79d0b094bab3a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:VVZEREDDCJWFHTO6G56PGOSIEC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Post-Operative Glioma Segmentation via Loss Stabilization, Normalization and Subspace Attention","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.AI"],"primary_cat":"cs.CV","authors_text":"Alexandru Cri\\c{s}an, Diana Borza","submitted_at":"2026-07-23T09:59:30Z","abstract_excerpt":"Tracking residual tumor after surgery is essential for catching recurrence early, but automating post-operative glioma segmentation remains a difficult task. Although transformer-based architectures, such as SwinUNETR, achieved impressive results, few studies test how well they generalize across clinical protocols. In this paper, we conduct an ablation study on the MU-GLIOMA-POST and UCSF-ALPTDG datasets and show that the standard Generalized Dice Loss (GDL) is unstable under domain shift: the Whole Lesion (WL) Dice drops from 0.88 on the internal validation set to 0.73 on the external UCSF te"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.22749","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/2607.22749/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":"2026-07-28T00:21:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"49TGyuvPrL3G2GiSvSBWgf0fbMOU+iuSD6sfCUli+5/Ls9ZVbN52T297xoyNVzpqprG3ajL/udOfxry1BdiiDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T15:38:12.474290Z"},"content_sha256":"d6821a0bbfdef3d9d8e53b9af7913eaf275a2cb7d4152a61bb12c924494f0eb0","schema_version":"1.0","event_id":"sha256:d6821a0bbfdef3d9d8e53b9af7913eaf275a2cb7d4152a61bb12c924494f0eb0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VVZEREDDCJWFHTO6G56PGOSIEC/bundle.json","state_url":"https://pith.science/pith/VVZEREDDCJWFHTO6G56PGOSIEC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VVZEREDDCJWFHTO6G56PGOSIEC/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":"2026-08-04T15:38:12Z","links":{"resolver":"https://pith.science/pith/VVZEREDDCJWFHTO6G56PGOSIEC","bundle":"https://pith.science/pith/VVZEREDDCJWFHTO6G56PGOSIEC/bundle.json","state":"https://pith.science/pith/VVZEREDDCJWFHTO6G56PGOSIEC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VVZEREDDCJWFHTO6G56PGOSIEC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:VVZEREDDCJWFHTO6G56PGOSIEC","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":"757ea7eabcd9b5394f57186b6af182e04a042741efc285078d6297399dbe0bf2","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2026-07-23T09:59:30Z","title_canon_sha256":"e235b2a6290823b1bcebb9a305330a179be2878a2e5dc45612611179e3e177df"},"schema_version":"1.0","source":{"id":"2607.22749","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.22749","created_at":"2026-07-28T00:21:52Z"},{"alias_kind":"arxiv_version","alias_value":"2607.22749v1","created_at":"2026-07-28T00:21:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.22749","created_at":"2026-07-28T00:21:52Z"},{"alias_kind":"pith_short_12","alias_value":"VVZEREDDCJWF","created_at":"2026-07-28T00:21:52Z"},{"alias_kind":"pith_short_16","alias_value":"VVZEREDDCJWFHTO6","created_at":"2026-07-28T00:21:52Z"},{"alias_kind":"pith_short_8","alias_value":"VVZEREDD","created_at":"2026-07-28T00:21:52Z"}],"graph_snapshots":[{"event_id":"sha256:d6821a0bbfdef3d9d8e53b9af7913eaf275a2cb7d4152a61bb12c924494f0eb0","target":"graph","created_at":"2026-07-28T00:21:52Z","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/2607.22749/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Tracking residual tumor after surgery is essential for catching recurrence early, but automating post-operative glioma segmentation remains a difficult task. Although transformer-based architectures, such as SwinUNETR, achieved impressive results, few studies test how well they generalize across clinical protocols. In this paper, we conduct an ablation study on the MU-GLIOMA-POST and UCSF-ALPTDG datasets and show that the standard Generalized Dice Loss (GDL) is unstable under domain shift: the Whole Lesion (WL) Dice drops from 0.88 on the internal validation set to 0.73 on the external UCSF te","authors_text":"Alexandru Cri\\c{s}an, Diana Borza","cross_cats":["cs.AI"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2026-07-23T09:59:30Z","title":"Post-Operative Glioma Segmentation via Loss Stabilization, Normalization and Subspace Attention"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.22749","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:c794af00a9e9ec663793c35989dd878a7cfac4eb76bcc67441b79d0b094bab3a","target":"record","created_at":"2026-07-28T00:21:52Z","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":"757ea7eabcd9b5394f57186b6af182e04a042741efc285078d6297399dbe0bf2","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2026-07-23T09:59:30Z","title_canon_sha256":"e235b2a6290823b1bcebb9a305330a179be2878a2e5dc45612611179e3e177df"},"schema_version":"1.0","source":{"id":"2607.22749","kind":"arxiv","version":1}},"canonical_sha256":"ad72489063126c53cdde377cf33a4820804626e986dbdd3a47374e62dc88c03f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ad72489063126c53cdde377cf33a4820804626e986dbdd3a47374e62dc88c03f","first_computed_at":"2026-07-28T00:21:52.570501Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-28T00:21:52.570501Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wiwlvDAVVVGLKBTwbZHrFLwp1KNvzJnj/f07XT/hrhiuHuZc3S2bM7XCOWDuwkCtJq/uJE4sXdJGuXQkIlulAQ==","signature_status":"signed_v1","signed_at":"2026-07-28T00:21:52.571440Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.22749","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c794af00a9e9ec663793c35989dd878a7cfac4eb76bcc67441b79d0b094bab3a","sha256:d6821a0bbfdef3d9d8e53b9af7913eaf275a2cb7d4152a61bb12c924494f0eb0"],"state_sha256":"76da5167d71980ca313547ad3b465578d1dee60ed3a9d9e0888d88ea2605d87f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7MGrz0l6u4NiDzuvBvmGG29lPsDJuKERdpTI1+UpKQ9AdIkQx4nzS4f4cgpAx4m4qtBvZJCjpKdna/FYz/bDCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T15:38:12.485488Z","bundle_sha256":"c07da5f9a69ecee5c061fcf62b0595f7051f8a5c7bca2db149e7a59dc70fbcb2"}}