{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:MZHGDWVHLXC4P3WXTFJSXAU7XX","short_pith_number":"pith:MZHGDWVH","canonical_record":{"source":{"id":"2309.09563","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.CV","submitted_at":"2023-09-18T08:16:30Z","cross_cats_sorted":[],"title_canon_sha256":"8e576efdeb1bcc7d37781e224a88bb4e107b19bfd7d246b627d449a40271e529","abstract_canon_sha256":"4740fced27bf096305e0c003cc3db4b37489f6c36bc3fa474ede5e32deef229d"},"schema_version":"1.0"},"canonical_sha256":"664e61daa75dc5c7eed799532b829fbdd79b96e69817b89352903cc3f6734013","source":{"kind":"arxiv","id":"2309.09563","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2309.09563","created_at":"2026-07-05T06:51:41Z"},{"alias_kind":"arxiv_version","alias_value":"2309.09563v1","created_at":"2026-07-05T06:51:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2309.09563","created_at":"2026-07-05T06:51:41Z"},{"alias_kind":"pith_short_12","alias_value":"MZHGDWVHLXC4","created_at":"2026-07-05T06:51:41Z"},{"alias_kind":"pith_short_16","alias_value":"MZHGDWVHLXC4P3WX","created_at":"2026-07-05T06:51:41Z"},{"alias_kind":"pith_short_8","alias_value":"MZHGDWVH","created_at":"2026-07-05T06:51:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:MZHGDWVHLXC4P3WXTFJSXAU7XX","target":"record","payload":{"canonical_record":{"source":{"id":"2309.09563","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.CV","submitted_at":"2023-09-18T08:16:30Z","cross_cats_sorted":[],"title_canon_sha256":"8e576efdeb1bcc7d37781e224a88bb4e107b19bfd7d246b627d449a40271e529","abstract_canon_sha256":"4740fced27bf096305e0c003cc3db4b37489f6c36bc3fa474ede5e32deef229d"},"schema_version":"1.0"},"canonical_sha256":"664e61daa75dc5c7eed799532b829fbdd79b96e69817b89352903cc3f6734013","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:51:41.147308Z","signature_b64":"EBKF2tjEyrNQ9NievCjwIqRHg4+hRN8sOPOuimTXGWuik6gkQcL6jB9xld80WK/eOl5Y2dRh7krEQvHDvJ0pAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"664e61daa75dc5c7eed799532b829fbdd79b96e69817b89352903cc3f6734013","last_reissued_at":"2026-07-05T06:51:41.146826Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:51:41.146826Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2309.09563","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":"2026-07-05T06:51:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zZkhV5y43NRaRIB7EkNzjUtXGEhqc4BMF/L8cuR1x0USOCmvYIgKi00m/BsblmKgTOmm6YLv80uVj9WayB1PCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T23:47:27.119357Z"},"content_sha256":"70670924b406cc7868179de3b1d7a9194ca05e535281c722d95cb35e680ed794","schema_version":"1.0","event_id":"sha256:70670924b406cc7868179de3b1d7a9194ca05e535281c722d95cb35e680ed794"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:MZHGDWVHLXC4P3WXTFJSXAU7XX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"RIDE: Self-Supervised Learning of Rotation-Equivariant Keypoint Detection and Invariant Description for Endoscopy","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Alexander Ladikos, Benjamin Busam, Mert Asim Karaoglu, Nassir Navab, Viktoria Markova","submitted_at":"2023-09-18T08:16:30Z","abstract_excerpt":"Unlike in natural images, in endoscopy there is no clear notion of an up-right camera orientation. Endoscopic videos therefore often contain large rotational motions, which require keypoint detection and description algorithms to be robust to these conditions. While most classical methods achieve rotation-equivariant detection and invariant description by design, many learning-based approaches learn to be robust only up to a certain degree. At the same time learning-based methods under moderate rotations often outperform classical approaches. In order to address this shortcoming, in this paper"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2309.09563","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/2309.09563/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":"2026-07-05T06:51:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qP+/OS/gg362Gb58Qd+Hl8gicz/PSngW3PuqdyEe50JRgJH1rC3Ph+Oa2uEfdWzLVsMz3YPdjxz80kltAEuJDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T23:47:27.119878Z"},"content_sha256":"a6e1537623e1295fecbd9e545d424f6ec422c7843388acebfb1bd378fc83afe1","schema_version":"1.0","event_id":"sha256:a6e1537623e1295fecbd9e545d424f6ec422c7843388acebfb1bd378fc83afe1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MZHGDWVHLXC4P3WXTFJSXAU7XX/bundle.json","state_url":"https://pith.science/pith/MZHGDWVHLXC4P3WXTFJSXAU7XX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MZHGDWVHLXC4P3WXTFJSXAU7XX/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":"2026-08-17T23:47:27Z","links":{"resolver":"https://pith.science/pith/MZHGDWVHLXC4P3WXTFJSXAU7XX","bundle":"https://pith.science/pith/MZHGDWVHLXC4P3WXTFJSXAU7XX/bundle.json","state":"https://pith.science/pith/MZHGDWVHLXC4P3WXTFJSXAU7XX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MZHGDWVHLXC4P3WXTFJSXAU7XX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:MZHGDWVHLXC4P3WXTFJSXAU7XX","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":"4740fced27bf096305e0c003cc3db4b37489f6c36bc3fa474ede5e32deef229d","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.CV","submitted_at":"2023-09-18T08:16:30Z","title_canon_sha256":"8e576efdeb1bcc7d37781e224a88bb4e107b19bfd7d246b627d449a40271e529"},"schema_version":"1.0","source":{"id":"2309.09563","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2309.09563","created_at":"2026-07-05T06:51:41Z"},{"alias_kind":"arxiv_version","alias_value":"2309.09563v1","created_at":"2026-07-05T06:51:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2309.09563","created_at":"2026-07-05T06:51:41Z"},{"alias_kind":"pith_short_12","alias_value":"MZHGDWVHLXC4","created_at":"2026-07-05T06:51:41Z"},{"alias_kind":"pith_short_16","alias_value":"MZHGDWVHLXC4P3WX","created_at":"2026-07-05T06:51:41Z"},{"alias_kind":"pith_short_8","alias_value":"MZHGDWVH","created_at":"2026-07-05T06:51:41Z"}],"graph_snapshots":[{"event_id":"sha256:a6e1537623e1295fecbd9e545d424f6ec422c7843388acebfb1bd378fc83afe1","target":"graph","created_at":"2026-07-05T06:51:41Z","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/2309.09563/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Unlike in natural images, in endoscopy there is no clear notion of an up-right camera orientation. Endoscopic videos therefore often contain large rotational motions, which require keypoint detection and description algorithms to be robust to these conditions. While most classical methods achieve rotation-equivariant detection and invariant description by design, many learning-based approaches learn to be robust only up to a certain degree. At the same time learning-based methods under moderate rotations often outperform classical approaches. In order to address this shortcoming, in this paper","authors_text":"Alexander Ladikos, Benjamin Busam, Mert Asim Karaoglu, Nassir Navab, Viktoria Markova","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.CV","submitted_at":"2023-09-18T08:16:30Z","title":"RIDE: Self-Supervised Learning of Rotation-Equivariant Keypoint Detection and Invariant Description for Endoscopy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2309.09563","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":"sha256:70670924b406cc7868179de3b1d7a9194ca05e535281c722d95cb35e680ed794","target":"record","created_at":"2026-07-05T06:51:41Z","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":"4740fced27bf096305e0c003cc3db4b37489f6c36bc3fa474ede5e32deef229d","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.CV","submitted_at":"2023-09-18T08:16:30Z","title_canon_sha256":"8e576efdeb1bcc7d37781e224a88bb4e107b19bfd7d246b627d449a40271e529"},"schema_version":"1.0","source":{"id":"2309.09563","kind":"arxiv","version":1}},"canonical_sha256":"664e61daa75dc5c7eed799532b829fbdd79b96e69817b89352903cc3f6734013","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"664e61daa75dc5c7eed799532b829fbdd79b96e69817b89352903cc3f6734013","first_computed_at":"2026-07-05T06:51:41.146826Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:51:41.146826Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"EBKF2tjEyrNQ9NievCjwIqRHg4+hRN8sOPOuimTXGWuik6gkQcL6jB9xld80WK/eOl5Y2dRh7krEQvHDvJ0pAg==","signature_status":"signed_v1","signed_at":"2026-07-05T06:51:41.147308Z","signed_message":"canonical_sha256_bytes"},"source_id":"2309.09563","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:70670924b406cc7868179de3b1d7a9194ca05e535281c722d95cb35e680ed794","sha256:a6e1537623e1295fecbd9e545d424f6ec422c7843388acebfb1bd378fc83afe1"],"state_sha256":"b32b8ce0e1546cd4d1924004768988a4a2a05a3d3be80390513ca09febb8c393"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"I3gKXy0Thv+XfPi4P0Y6p7KVFsOwmJ+5qr9gxCdF+yHiroSPLrsxDnHd9uKfVbKSvaBpEZe3xrC0T8flk8pbBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-17T23:47:27.124528Z","bundle_sha256":"1c672f5b805dec5aa0a1d2c29eec434c1193aab88aecdbe47100a351e780f7df"}}