{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:6ILUBVVEEZY7ODWYN4NWPRZW33","short_pith_number":"pith:6ILUBVVE","canonical_record":{"source":{"id":"2607.05090","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2026-07-06T13:51:28Z","cross_cats_sorted":[],"title_canon_sha256":"ed081de652f9fd6d29a71b493a1f7a4e0c218e61149734e0d5d667413cbc6045","abstract_canon_sha256":"758acac5ada84c4d85d52d9d5ef6dd0f30b4e76050c74d665d730dc65929a867"},"schema_version":"1.0"},"canonical_sha256":"f21740d6a42671f70ed86f1b67c736def6c84a7a66b230ecf152a4c55c4d3f84","source":{"kind":"arxiv","id":"2607.05090","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.05090","created_at":"2026-07-07T03:19:15Z"},{"alias_kind":"arxiv_version","alias_value":"2607.05090v1","created_at":"2026-07-07T03:19:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.05090","created_at":"2026-07-07T03:19:15Z"},{"alias_kind":"pith_short_12","alias_value":"6ILUBVVEEZY7","created_at":"2026-07-07T03:19:15Z"},{"alias_kind":"pith_short_16","alias_value":"6ILUBVVEEZY7ODWY","created_at":"2026-07-07T03:19:15Z"},{"alias_kind":"pith_short_8","alias_value":"6ILUBVVE","created_at":"2026-07-07T03:19:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:6ILUBVVEEZY7ODWYN4NWPRZW33","target":"record","payload":{"canonical_record":{"source":{"id":"2607.05090","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2026-07-06T13:51:28Z","cross_cats_sorted":[],"title_canon_sha256":"ed081de652f9fd6d29a71b493a1f7a4e0c218e61149734e0d5d667413cbc6045","abstract_canon_sha256":"758acac5ada84c4d85d52d9d5ef6dd0f30b4e76050c74d665d730dc65929a867"},"schema_version":"1.0"},"canonical_sha256":"f21740d6a42671f70ed86f1b67c736def6c84a7a66b230ecf152a4c55c4d3f84","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-07T03:19:15.758991Z","signature_b64":"RUccdDzOGkQjKnT5ZOdXAqD4dWxy1B+RFILsudqcnq9rhNKOCbF7U/3KIeQaewzeyEdj9Ncw9+NNvgaETHvFAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f21740d6a42671f70ed86f1b67c736def6c84a7a66b230ecf152a4c55c4d3f84","last_reissued_at":"2026-07-07T03:19:15.758531Z","signature_status":"signed_v1","first_computed_at":"2026-07-07T03:19:15.758531Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.05090","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":"2026-07-07T03:19:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ji92s+S5yGDbuqDEzwT+Cya//+kWsKWwLafz8j1obfnCKasFfJ2B1LBbFslQtJ5jI3TrxvG3mtJ9n5n2mRWnBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T00:45:47.741017Z"},"content_sha256":"55251c3288c4f71fb58168c8f45eb8a12706f26d814c60bb82e686735c5f77ed","schema_version":"1.0","event_id":"sha256:55251c3288c4f71fb58168c8f45eb8a12706f26d814c60bb82e686735c5f77ed"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:6ILUBVVEEZY7ODWYN4NWPRZW33","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Be Indiscrete: The Benefits of Learning Continuous Spine Degeneration Severity Scores","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Amir Jamaludin, Andrew Zisserman, Catherine R. Jutzeler, Maria Monzon, Robin Y. Park","submitted_at":"2026-07-06T13:51:28Z","abstract_excerpt":"Lumbar spine degeneration is a major contributor to chronic low back pain and is routinely assessed on MRI using ordinal grading systems, e.g. normal, mild, moderate, severe. Consequently, most approaches to train models to grade these MRIs formulate grading as a multi-class classification problem, treating ordinal grades as categorical, ignoring differences in misclassification severity, and imposing hard decision boundaries on a continuous disease process. This work explores modeling spinal degeneration as a continuous severity ranking problem. We introduce SpineRankNet, a framework that lea"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.05090","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/2607.05090/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":"2026-07-07T03:19:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pAXus3xgaaimuNflNWmfX0T8agPHPvVC4vf24oHQ9cDUMw+P6i/vC4VHVo0blo7Uj+egWLwfSRlRKiPZHvvQCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T00:45:47.741498Z"},"content_sha256":"6e581998d20aabab7a592b66c41488529d2f54f691f0b540ca94ef03d6b6544e","schema_version":"1.0","event_id":"sha256:6e581998d20aabab7a592b66c41488529d2f54f691f0b540ca94ef03d6b6544e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6ILUBVVEEZY7ODWYN4NWPRZW33/bundle.json","state_url":"https://pith.science/pith/6ILUBVVEEZY7ODWYN4NWPRZW33/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6ILUBVVEEZY7ODWYN4NWPRZW33/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":"2026-08-10T00:45:47Z","links":{"resolver":"https://pith.science/pith/6ILUBVVEEZY7ODWYN4NWPRZW33","bundle":"https://pith.science/pith/6ILUBVVEEZY7ODWYN4NWPRZW33/bundle.json","state":"https://pith.science/pith/6ILUBVVEEZY7ODWYN4NWPRZW33/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6ILUBVVEEZY7ODWYN4NWPRZW33/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:6ILUBVVEEZY7ODWYN4NWPRZW33","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":"758acac5ada84c4d85d52d9d5ef6dd0f30b4e76050c74d665d730dc65929a867","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2026-07-06T13:51:28Z","title_canon_sha256":"ed081de652f9fd6d29a71b493a1f7a4e0c218e61149734e0d5d667413cbc6045"},"schema_version":"1.0","source":{"id":"2607.05090","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.05090","created_at":"2026-07-07T03:19:15Z"},{"alias_kind":"arxiv_version","alias_value":"2607.05090v1","created_at":"2026-07-07T03:19:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.05090","created_at":"2026-07-07T03:19:15Z"},{"alias_kind":"pith_short_12","alias_value":"6ILUBVVEEZY7","created_at":"2026-07-07T03:19:15Z"},{"alias_kind":"pith_short_16","alias_value":"6ILUBVVEEZY7ODWY","created_at":"2026-07-07T03:19:15Z"},{"alias_kind":"pith_short_8","alias_value":"6ILUBVVE","created_at":"2026-07-07T03:19:15Z"}],"graph_snapshots":[{"event_id":"sha256:6e581998d20aabab7a592b66c41488529d2f54f691f0b540ca94ef03d6b6544e","target":"graph","created_at":"2026-07-07T03:19:15Z","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/2607.05090/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Lumbar spine degeneration is a major contributor to chronic low back pain and is routinely assessed on MRI using ordinal grading systems, e.g. normal, mild, moderate, severe. Consequently, most approaches to train models to grade these MRIs formulate grading as a multi-class classification problem, treating ordinal grades as categorical, ignoring differences in misclassification severity, and imposing hard decision boundaries on a continuous disease process. This work explores modeling spinal degeneration as a continuous severity ranking problem. We introduce SpineRankNet, a framework that lea","authors_text":"Amir Jamaludin, Andrew Zisserman, Catherine R. Jutzeler, Maria Monzon, Robin Y. Park","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2026-07-06T13:51:28Z","title":"Be Indiscrete: The Benefits of Learning Continuous Spine Degeneration Severity Scores"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.05090","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":"sha256:55251c3288c4f71fb58168c8f45eb8a12706f26d814c60bb82e686735c5f77ed","target":"record","created_at":"2026-07-07T03:19:15Z","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":"758acac5ada84c4d85d52d9d5ef6dd0f30b4e76050c74d665d730dc65929a867","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2026-07-06T13:51:28Z","title_canon_sha256":"ed081de652f9fd6d29a71b493a1f7a4e0c218e61149734e0d5d667413cbc6045"},"schema_version":"1.0","source":{"id":"2607.05090","kind":"arxiv","version":1}},"canonical_sha256":"f21740d6a42671f70ed86f1b67c736def6c84a7a66b230ecf152a4c55c4d3f84","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f21740d6a42671f70ed86f1b67c736def6c84a7a66b230ecf152a4c55c4d3f84","first_computed_at":"2026-07-07T03:19:15.758531Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-07T03:19:15.758531Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RUccdDzOGkQjKnT5ZOdXAqD4dWxy1B+RFILsudqcnq9rhNKOCbF7U/3KIeQaewzeyEdj9Ncw9+NNvgaETHvFAQ==","signature_status":"signed_v1","signed_at":"2026-07-07T03:19:15.758991Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.05090","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:55251c3288c4f71fb58168c8f45eb8a12706f26d814c60bb82e686735c5f77ed","sha256:6e581998d20aabab7a592b66c41488529d2f54f691f0b540ca94ef03d6b6544e"],"state_sha256":"b08bac60172e0fe05bd1758ff5f236b4ead7704c6b8c08de4bfaf778db5f3a74"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2xQHcPb/4bG/pxSNyRGEmI8JRWjYeHLbb+Iv5hxw0MMxwr9p6g/UmCgwmdxnNQuM6xHmn9f/LP8gcCCQ+gniBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T00:45:47.744813Z","bundle_sha256":"7af3bcf0d7fe9ee60d896413a9c0dd9ffe11af1d8dceb1a90ffcf71dfeac3bda"}}