{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:3ZVZ6M7RTKY4TIKXHII6SRLBOR","short_pith_number":"pith:3ZVZ6M7R","canonical_record":{"source":{"id":"2504.04841","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-04-07T08:53:14Z","cross_cats_sorted":[],"title_canon_sha256":"bb1b0a14647f385cf37b648a954a253510c5dbbf4aee8c81d66c12db70b82a2a","abstract_canon_sha256":"8aa5827502b2f9c3764ce34e7c2513ccbaf48bd461814a042408077b89505388"},"schema_version":"1.0"},"canonical_sha256":"de6b9f33f19ab1c9a1573a11e94561747bd172f596b33d07b3523b3d6d4303ce","source":{"kind":"arxiv","id":"2504.04841","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.04841","created_at":"2026-07-05T11:48:48Z"},{"alias_kind":"arxiv_version","alias_value":"2504.04841v2","created_at":"2026-07-05T11:48:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.04841","created_at":"2026-07-05T11:48:48Z"},{"alias_kind":"pith_short_12","alias_value":"3ZVZ6M7RTKY4","created_at":"2026-07-05T11:48:48Z"},{"alias_kind":"pith_short_16","alias_value":"3ZVZ6M7RTKY4TIKX","created_at":"2026-07-05T11:48:48Z"},{"alias_kind":"pith_short_8","alias_value":"3ZVZ6M7R","created_at":"2026-07-05T11:48:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:3ZVZ6M7RTKY4TIKXHII6SRLBOR","target":"record","payload":{"canonical_record":{"source":{"id":"2504.04841","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-04-07T08:53:14Z","cross_cats_sorted":[],"title_canon_sha256":"bb1b0a14647f385cf37b648a954a253510c5dbbf4aee8c81d66c12db70b82a2a","abstract_canon_sha256":"8aa5827502b2f9c3764ce34e7c2513ccbaf48bd461814a042408077b89505388"},"schema_version":"1.0"},"canonical_sha256":"de6b9f33f19ab1c9a1573a11e94561747bd172f596b33d07b3523b3d6d4303ce","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:48:48.529116Z","signature_b64":"LbZQSfeOYJn/Y+Ics7FJPum8hWgHVs6IheOzh6BKYtjf2PnE4TUaVSowQ9kq9lxk9WI7/bBFjao0hgkR4ZWPDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"de6b9f33f19ab1c9a1573a11e94561747bd172f596b33d07b3523b3d6d4303ce","last_reissued_at":"2026-07-05T11:48:48.528463Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:48:48.528463Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2504.04841","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":"2026-07-05T11:48:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KxuHUXg4rv4y+/RRsfwXoNHl/ejeQIeCd6YeFdDn6Y7upzw2oQFKsRODsucgYU9QhJbNgbG5n41TKFx0Rpo2DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T13:23:37.798586Z"},"content_sha256":"cfe32448ba3a1b9075edcfe11ce2349c3f61bd92540b9ad2c70aed6222685219","schema_version":"1.0","event_id":"sha256:cfe32448ba3a1b9075edcfe11ce2349c3f61bd92540b9ad2c70aed6222685219"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:3ZVZ6M7RTKY4TIKXHII6SRLBOR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Prior2Former -- Evidential Modeling of Mask Transformers for Assumption-Free Open-World Panoptic Segmentation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Dominik Fuchsgruber, Federico Tombari, Julius K\\\"orner, Sebastian Schmidt, Stefano Gasperini, Stephan G\\\"unnemann","submitted_at":"2025-04-07T08:53:14Z","abstract_excerpt":"In panoptic segmentation, individual instances must be separated within semantic classes. As state-of-the-art methods rely on a pre-defined set of classes, they struggle with novel categories and out-of-distribution (OOD) data. This is particularly problematic in safety-critical applications, such as autonomous driving, where reliability in unseen scenarios is essential. We address the gap between outstanding benchmark performance and reliability by proposing Prior2Former (P2F), the first approach for segmentation vision transformers rooted in evidential learning. P2F extends the mask vision t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.04841","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/2504.04841/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":"2026-07-05T11:48:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WCsHTY6ARZ7O1D5Xr/wq6pTz63SDBDCq1WKYH8eqZIyVCq2SEZvbhi2frEcPNYaX7TLiTceeTk1st1q2NpPnCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T13:23:37.799122Z"},"content_sha256":"7454593df27fc0e98d2b56fa16609dd9275d31f4797a198c19ecbd29d6f347bf","schema_version":"1.0","event_id":"sha256:7454593df27fc0e98d2b56fa16609dd9275d31f4797a198c19ecbd29d6f347bf"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3ZVZ6M7RTKY4TIKXHII6SRLBOR/bundle.json","state_url":"https://pith.science/pith/3ZVZ6M7RTKY4TIKXHII6SRLBOR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3ZVZ6M7RTKY4TIKXHII6SRLBOR/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":"2026-08-06T13:23:37Z","links":{"resolver":"https://pith.science/pith/3ZVZ6M7RTKY4TIKXHII6SRLBOR","bundle":"https://pith.science/pith/3ZVZ6M7RTKY4TIKXHII6SRLBOR/bundle.json","state":"https://pith.science/pith/3ZVZ6M7RTKY4TIKXHII6SRLBOR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3ZVZ6M7RTKY4TIKXHII6SRLBOR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:3ZVZ6M7RTKY4TIKXHII6SRLBOR","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":"8aa5827502b2f9c3764ce34e7c2513ccbaf48bd461814a042408077b89505388","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-04-07T08:53:14Z","title_canon_sha256":"bb1b0a14647f385cf37b648a954a253510c5dbbf4aee8c81d66c12db70b82a2a"},"schema_version":"1.0","source":{"id":"2504.04841","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.04841","created_at":"2026-07-05T11:48:48Z"},{"alias_kind":"arxiv_version","alias_value":"2504.04841v2","created_at":"2026-07-05T11:48:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.04841","created_at":"2026-07-05T11:48:48Z"},{"alias_kind":"pith_short_12","alias_value":"3ZVZ6M7RTKY4","created_at":"2026-07-05T11:48:48Z"},{"alias_kind":"pith_short_16","alias_value":"3ZVZ6M7RTKY4TIKX","created_at":"2026-07-05T11:48:48Z"},{"alias_kind":"pith_short_8","alias_value":"3ZVZ6M7R","created_at":"2026-07-05T11:48:48Z"}],"graph_snapshots":[{"event_id":"sha256:7454593df27fc0e98d2b56fa16609dd9275d31f4797a198c19ecbd29d6f347bf","target":"graph","created_at":"2026-07-05T11:48:48Z","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/2504.04841/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In panoptic segmentation, individual instances must be separated within semantic classes. As state-of-the-art methods rely on a pre-defined set of classes, they struggle with novel categories and out-of-distribution (OOD) data. This is particularly problematic in safety-critical applications, such as autonomous driving, where reliability in unseen scenarios is essential. We address the gap between outstanding benchmark performance and reliability by proposing Prior2Former (P2F), the first approach for segmentation vision transformers rooted in evidential learning. P2F extends the mask vision t","authors_text":"Dominik Fuchsgruber, Federico Tombari, Julius K\\\"orner, Sebastian Schmidt, Stefano Gasperini, Stephan G\\\"unnemann","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-04-07T08:53:14Z","title":"Prior2Former -- Evidential Modeling of Mask Transformers for Assumption-Free Open-World Panoptic Segmentation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.04841","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:cfe32448ba3a1b9075edcfe11ce2349c3f61bd92540b9ad2c70aed6222685219","target":"record","created_at":"2026-07-05T11:48:48Z","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":"8aa5827502b2f9c3764ce34e7c2513ccbaf48bd461814a042408077b89505388","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-04-07T08:53:14Z","title_canon_sha256":"bb1b0a14647f385cf37b648a954a253510c5dbbf4aee8c81d66c12db70b82a2a"},"schema_version":"1.0","source":{"id":"2504.04841","kind":"arxiv","version":2}},"canonical_sha256":"de6b9f33f19ab1c9a1573a11e94561747bd172f596b33d07b3523b3d6d4303ce","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"de6b9f33f19ab1c9a1573a11e94561747bd172f596b33d07b3523b3d6d4303ce","first_computed_at":"2026-07-05T11:48:48.528463Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:48:48.528463Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LbZQSfeOYJn/Y+Ics7FJPum8hWgHVs6IheOzh6BKYtjf2PnE4TUaVSowQ9kq9lxk9WI7/bBFjao0hgkR4ZWPDA==","signature_status":"signed_v1","signed_at":"2026-07-05T11:48:48.529116Z","signed_message":"canonical_sha256_bytes"},"source_id":"2504.04841","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cfe32448ba3a1b9075edcfe11ce2349c3f61bd92540b9ad2c70aed6222685219","sha256:7454593df27fc0e98d2b56fa16609dd9275d31f4797a198c19ecbd29d6f347bf"],"state_sha256":"76383743aaf2c3827887a2489ece5fe0c764ded53ada8f4a274c560b88fb760e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vI1g9zy84oz2VJThUpCvS1Fp4t22aiFMbfBnTRXvgXcnVcN3THOIuXeAyVHRjzcxodAlm1qhN6DG+aqlkwUCBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T13:23:37.806522Z","bundle_sha256":"29342edb40ebf146665da75243580fe8c00312795206735906b734064299e5e7"}}