{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:O7TZOJUB5QMKXVHSQUY4GJJPRR","short_pith_number":"pith:O7TZOJUB","canonical_record":{"source":{"id":"1610.06608","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.TO","submitted_at":"2016-10-19T16:08:32Z","cross_cats_sorted":["q-bio.OT"],"title_canon_sha256":"ca5931cdededaeb53c5a45177ec496156cd8e1550bd827dbc47602de8f1dfdc1","abstract_canon_sha256":"0e28733b4a3b0004d42550e4cb42a8ac498325153263152b742a77fcc3d128c5"},"schema_version":"1.0"},"canonical_sha256":"77e7972681ec18abd4f28531c3252f8c533210212c7801a98821e8f85070fd9a","source":{"kind":"arxiv","id":"1610.06608","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.06608","created_at":"2026-05-18T01:01:37Z"},{"alias_kind":"arxiv_version","alias_value":"1610.06608v1","created_at":"2026-05-18T01:01:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.06608","created_at":"2026-05-18T01:01:37Z"},{"alias_kind":"pith_short_12","alias_value":"O7TZOJUB5QMK","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_16","alias_value":"O7TZOJUB5QMKXVHS","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_8","alias_value":"O7TZOJUB","created_at":"2026-05-18T12:30:36Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:O7TZOJUB5QMKXVHSQUY4GJJPRR","target":"record","payload":{"canonical_record":{"source":{"id":"1610.06608","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.TO","submitted_at":"2016-10-19T16:08:32Z","cross_cats_sorted":["q-bio.OT"],"title_canon_sha256":"ca5931cdededaeb53c5a45177ec496156cd8e1550bd827dbc47602de8f1dfdc1","abstract_canon_sha256":"0e28733b4a3b0004d42550e4cb42a8ac498325153263152b742a77fcc3d128c5"},"schema_version":"1.0"},"canonical_sha256":"77e7972681ec18abd4f28531c3252f8c533210212c7801a98821e8f85070fd9a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:01:37.228919Z","signature_b64":"ZPKDj0PoujS7FYI7TDOE0ipjPPPjBsOs2LIgK0v8CFr+e7U+lLFga9PQ4MdSghjWqQKwcNBr7TQXc/IoS1BSDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"77e7972681ec18abd4f28531c3252f8c533210212c7801a98821e8f85070fd9a","last_reissued_at":"2026-05-18T01:01:37.228343Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:01:37.228343Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1610.06608","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":"2026-05-18T01:01:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4EVLjcui4HUYvLltExLSD9t2cFI6BithCO3/bGy/RjqhwSdimgLrMKG4cTi8REpb6tK0ABHW6zojmCFe4YOeBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T06:23:04.787743Z"},"content_sha256":"5f8ad4faa0e39c6aba488e27dbb971315f1583c574793132ffa1b13277b9ea8c","schema_version":"1.0","event_id":"sha256:5f8ad4faa0e39c6aba488e27dbb971315f1583c574793132ffa1b13277b9ea8c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:O7TZOJUB5QMKXVHSQUY4GJJPRR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Lumbar degenerative spondylolisthesis epidemiology: a systemic review with a focus on gender-specific and age-specific prevalence","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["q-bio.OT"],"primary_cat":"q-bio.TO","authors_text":"Jason Leung, Min Deng, Yi-Xiang Wang, Zoltan Kaplar","submitted_at":"2016-10-19T16:08:32Z","abstract_excerpt":"The epidemiology of lumbar degenerative spondylolisthesis (DS) remains controversial. We performed a systemic review with the aim to have a better understanding of DS's prevalence in general population. The results showed the prevalence of DS is very gender specific and age specific. Both women and men have few DS before 50 years old, after 50 years old both women and men start to develop DS, with women having a faster developing rate than men. For elderly Chinese (>=65 yrs, mean age: 72.5 yrs), large population based studies (MsOS(Hong Kong) and MrOS (Hong Kong), females n=2000 and males n=20"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.06608","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":""},"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":"2026-05-18T01:01:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hVULIg3rB1Hd74zyx0Y6TdRnSplgizL0AIOg+ii/1e2Cy2+FcB2uODt9Ln1Ix8fEbstZJlAXbv36aJ174TGVBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T06:23:04.788456Z"},"content_sha256":"48076d851e04c9a503cbdfcc8bec5fc6ca4b348fd60294cbb8ad92bd7b099f3d","schema_version":"1.0","event_id":"sha256:48076d851e04c9a503cbdfcc8bec5fc6ca4b348fd60294cbb8ad92bd7b099f3d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/O7TZOJUB5QMKXVHSQUY4GJJPRR/bundle.json","state_url":"https://pith.science/pith/O7TZOJUB5QMKXVHSQUY4GJJPRR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/O7TZOJUB5QMKXVHSQUY4GJJPRR/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":"2026-05-31T06:23:04Z","links":{"resolver":"https://pith.science/pith/O7TZOJUB5QMKXVHSQUY4GJJPRR","bundle":"https://pith.science/pith/O7TZOJUB5QMKXVHSQUY4GJJPRR/bundle.json","state":"https://pith.science/pith/O7TZOJUB5QMKXVHSQUY4GJJPRR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/O7TZOJUB5QMKXVHSQUY4GJJPRR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:O7TZOJUB5QMKXVHSQUY4GJJPRR","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":"0e28733b4a3b0004d42550e4cb42a8ac498325153263152b742a77fcc3d128c5","cross_cats_sorted":["q-bio.OT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.TO","submitted_at":"2016-10-19T16:08:32Z","title_canon_sha256":"ca5931cdededaeb53c5a45177ec496156cd8e1550bd827dbc47602de8f1dfdc1"},"schema_version":"1.0","source":{"id":"1610.06608","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.06608","created_at":"2026-05-18T01:01:37Z"},{"alias_kind":"arxiv_version","alias_value":"1610.06608v1","created_at":"2026-05-18T01:01:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.06608","created_at":"2026-05-18T01:01:37Z"},{"alias_kind":"pith_short_12","alias_value":"O7TZOJUB5QMK","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_16","alias_value":"O7TZOJUB5QMKXVHS","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_8","alias_value":"O7TZOJUB","created_at":"2026-05-18T12:30:36Z"}],"graph_snapshots":[{"event_id":"sha256:48076d851e04c9a503cbdfcc8bec5fc6ca4b348fd60294cbb8ad92bd7b099f3d","target":"graph","created_at":"2026-05-18T01:01:37Z","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"},"paper":{"abstract_excerpt":"The epidemiology of lumbar degenerative spondylolisthesis (DS) remains controversial. We performed a systemic review with the aim to have a better understanding of DS's prevalence in general population. The results showed the prevalence of DS is very gender specific and age specific. Both women and men have few DS before 50 years old, after 50 years old both women and men start to develop DS, with women having a faster developing rate than men. For elderly Chinese (>=65 yrs, mean age: 72.5 yrs), large population based studies (MsOS(Hong Kong) and MrOS (Hong Kong), females n=2000 and males n=20","authors_text":"Jason Leung, Min Deng, Yi-Xiang Wang, Zoltan Kaplar","cross_cats":["q-bio.OT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.TO","submitted_at":"2016-10-19T16:08:32Z","title":"Lumbar degenerative spondylolisthesis epidemiology: a systemic review with a focus on gender-specific and age-specific prevalence"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.06608","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":"sha256:5f8ad4faa0e39c6aba488e27dbb971315f1583c574793132ffa1b13277b9ea8c","target":"record","created_at":"2026-05-18T01:01:37Z","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":"0e28733b4a3b0004d42550e4cb42a8ac498325153263152b742a77fcc3d128c5","cross_cats_sorted":["q-bio.OT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.TO","submitted_at":"2016-10-19T16:08:32Z","title_canon_sha256":"ca5931cdededaeb53c5a45177ec496156cd8e1550bd827dbc47602de8f1dfdc1"},"schema_version":"1.0","source":{"id":"1610.06608","kind":"arxiv","version":1}},"canonical_sha256":"77e7972681ec18abd4f28531c3252f8c533210212c7801a98821e8f85070fd9a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"77e7972681ec18abd4f28531c3252f8c533210212c7801a98821e8f85070fd9a","first_computed_at":"2026-05-18T01:01:37.228343Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:01:37.228343Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZPKDj0PoujS7FYI7TDOE0ipjPPPjBsOs2LIgK0v8CFr+e7U+lLFga9PQ4MdSghjWqQKwcNBr7TQXc/IoS1BSDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:01:37.228919Z","signed_message":"canonical_sha256_bytes"},"source_id":"1610.06608","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5f8ad4faa0e39c6aba488e27dbb971315f1583c574793132ffa1b13277b9ea8c","sha256:48076d851e04c9a503cbdfcc8bec5fc6ca4b348fd60294cbb8ad92bd7b099f3d"],"state_sha256":"03f156e7e925b7b01eb28fe5d06d650fdb3230765c1277ad4e7ca33a0c14fee8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UiCDBPoZByFES8/CzAEatCXaFjZFzHllIqskXevXSHi6xVEwuM4ZX2FTHBUxCLbKcS5JRwVla6ADhxm50oalCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T06:23:04.792150Z","bundle_sha256":"2e2eb0c08a8dc74f16259a10790bc3cb2cb0e1621f4ded9b8b0dfc2a0e59ed17"}}