{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:YHEPEZF5GZTWIAZ7UIEF5HZGSW","short_pith_number":"pith:YHEPEZF5","canonical_record":{"source":{"id":"2411.02343","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2024-11-04T18:12:59Z","cross_cats_sorted":[],"title_canon_sha256":"7014243bf044794e9ddb337f7dcaea64e85db9ae357e199f50ff8bafb11eb08b","abstract_canon_sha256":"53c1d9741ac6cb6066e7cf0d8ee0195205fbecb78e7aa8399a52a76f164751e4"},"schema_version":"1.0"},"canonical_sha256":"c1c8f264bd366764033fa2085e9f26958c6b40cb5473f486fe03ab7dd7ed1461","source":{"kind":"arxiv","id":"2411.02343","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2411.02343","created_at":"2026-07-05T09:32:50Z"},{"alias_kind":"arxiv_version","alias_value":"2411.02343v2","created_at":"2026-07-05T09:32:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2411.02343","created_at":"2026-07-05T09:32:50Z"},{"alias_kind":"pith_short_12","alias_value":"YHEPEZF5GZTW","created_at":"2026-07-05T09:32:50Z"},{"alias_kind":"pith_short_16","alias_value":"YHEPEZF5GZTWIAZ7","created_at":"2026-07-05T09:32:50Z"},{"alias_kind":"pith_short_8","alias_value":"YHEPEZF5","created_at":"2026-07-05T09:32:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:YHEPEZF5GZTWIAZ7UIEF5HZGSW","target":"record","payload":{"canonical_record":{"source":{"id":"2411.02343","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2024-11-04T18:12:59Z","cross_cats_sorted":[],"title_canon_sha256":"7014243bf044794e9ddb337f7dcaea64e85db9ae357e199f50ff8bafb11eb08b","abstract_canon_sha256":"53c1d9741ac6cb6066e7cf0d8ee0195205fbecb78e7aa8399a52a76f164751e4"},"schema_version":"1.0"},"canonical_sha256":"c1c8f264bd366764033fa2085e9f26958c6b40cb5473f486fe03ab7dd7ed1461","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:32:50.046801Z","signature_b64":"brVq/VEqIkI6Gu5VVQ+RD+l9aMeUpPLNLFbKPY3ZtN7h91FAQ55YAs2xhfJHRqnobOVay1rr/WWuzlNGNg3YAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c1c8f264bd366764033fa2085e9f26958c6b40cb5473f486fe03ab7dd7ed1461","last_reissued_at":"2026-07-05T09:32:50.046290Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:32:50.046290Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2411.02343","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":"2026-07-05T09:32:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"On3Pq8TjaSWLOEpgDWxeVZYKBpk6pP403dZxRsVgOJo1a9aUnEGZ/zeA3TilkdrrxlvmWr1OsB19ZdhlELb1BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-11T03:04:48.830423Z"},"content_sha256":"9daf5e64558abef9c4d48bc83ea95bbe78f16167fc296fe77eff372322b40e96","schema_version":"1.0","event_id":"sha256:9daf5e64558abef9c4d48bc83ea95bbe78f16167fc296fe77eff372322b40e96"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:YHEPEZF5GZTWIAZ7UIEF5HZGSW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Boulder2Vec: Modeling Climber Performances in Professional Bouldering Competitions","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.LG","authors_text":"Ethan Baron, Victor Hau, Zeke Weng","submitted_at":"2024-11-04T18:12:59Z","abstract_excerpt":"Using data from professional bouldering competitions from 2008 to 2022, we train a logistic regression to predict climber results and measure climber skill. However, this approach is limited, as a single numeric coefficient per climber cannot adequately capture the intricacies of climbers' varying strengths and weaknesses in different boulder problems. For example, some climbers might prefer more static, technical routes while other climbers may specialize in powerful, dynamic problems.\n  To this end, we apply Probabilistic Matrix Factorization (PMF), a framework commonly used in recommender s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2411.02343","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/2411.02343/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":"2026-07-05T09:32:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZUhEFGFz+fg03rFTkJxuDS6eDvIzHipbYuBHLaEPibUBxqSjwZx5Hn4UVlUeuC+JpQ6GEqIwx8ygmuMqH9cFDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-11T03:04:48.831166Z"},"content_sha256":"788582de7bbfbd6a323bd824e7597c3f8bc996732ee4fed752ed09d32c8e1310","schema_version":"1.0","event_id":"sha256:788582de7bbfbd6a323bd824e7597c3f8bc996732ee4fed752ed09d32c8e1310"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YHEPEZF5GZTWIAZ7UIEF5HZGSW/bundle.json","state_url":"https://pith.science/pith/YHEPEZF5GZTWIAZ7UIEF5HZGSW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YHEPEZF5GZTWIAZ7UIEF5HZGSW/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":"2026-07-11T03:04:48Z","links":{"resolver":"https://pith.science/pith/YHEPEZF5GZTWIAZ7UIEF5HZGSW","bundle":"https://pith.science/pith/YHEPEZF5GZTWIAZ7UIEF5HZGSW/bundle.json","state":"https://pith.science/pith/YHEPEZF5GZTWIAZ7UIEF5HZGSW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YHEPEZF5GZTWIAZ7UIEF5HZGSW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:YHEPEZF5GZTWIAZ7UIEF5HZGSW","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":"53c1d9741ac6cb6066e7cf0d8ee0195205fbecb78e7aa8399a52a76f164751e4","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2024-11-04T18:12:59Z","title_canon_sha256":"7014243bf044794e9ddb337f7dcaea64e85db9ae357e199f50ff8bafb11eb08b"},"schema_version":"1.0","source":{"id":"2411.02343","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2411.02343","created_at":"2026-07-05T09:32:50Z"},{"alias_kind":"arxiv_version","alias_value":"2411.02343v2","created_at":"2026-07-05T09:32:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2411.02343","created_at":"2026-07-05T09:32:50Z"},{"alias_kind":"pith_short_12","alias_value":"YHEPEZF5GZTW","created_at":"2026-07-05T09:32:50Z"},{"alias_kind":"pith_short_16","alias_value":"YHEPEZF5GZTWIAZ7","created_at":"2026-07-05T09:32:50Z"},{"alias_kind":"pith_short_8","alias_value":"YHEPEZF5","created_at":"2026-07-05T09:32:50Z"}],"graph_snapshots":[{"event_id":"sha256:788582de7bbfbd6a323bd824e7597c3f8bc996732ee4fed752ed09d32c8e1310","target":"graph","created_at":"2026-07-05T09:32:50Z","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/2411.02343/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Using data from professional bouldering competitions from 2008 to 2022, we train a logistic regression to predict climber results and measure climber skill. However, this approach is limited, as a single numeric coefficient per climber cannot adequately capture the intricacies of climbers' varying strengths and weaknesses in different boulder problems. For example, some climbers might prefer more static, technical routes while other climbers may specialize in powerful, dynamic problems.\n  To this end, we apply Probabilistic Matrix Factorization (PMF), a framework commonly used in recommender s","authors_text":"Ethan Baron, Victor Hau, Zeke Weng","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2024-11-04T18:12:59Z","title":"Boulder2Vec: Modeling Climber Performances in Professional Bouldering Competitions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2411.02343","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":"sha256:9daf5e64558abef9c4d48bc83ea95bbe78f16167fc296fe77eff372322b40e96","target":"record","created_at":"2026-07-05T09:32:50Z","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":"53c1d9741ac6cb6066e7cf0d8ee0195205fbecb78e7aa8399a52a76f164751e4","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2024-11-04T18:12:59Z","title_canon_sha256":"7014243bf044794e9ddb337f7dcaea64e85db9ae357e199f50ff8bafb11eb08b"},"schema_version":"1.0","source":{"id":"2411.02343","kind":"arxiv","version":2}},"canonical_sha256":"c1c8f264bd366764033fa2085e9f26958c6b40cb5473f486fe03ab7dd7ed1461","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c1c8f264bd366764033fa2085e9f26958c6b40cb5473f486fe03ab7dd7ed1461","first_computed_at":"2026-07-05T09:32:50.046290Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:32:50.046290Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"brVq/VEqIkI6Gu5VVQ+RD+l9aMeUpPLNLFbKPY3ZtN7h91FAQ55YAs2xhfJHRqnobOVay1rr/WWuzlNGNg3YAA==","signature_status":"signed_v1","signed_at":"2026-07-05T09:32:50.046801Z","signed_message":"canonical_sha256_bytes"},"source_id":"2411.02343","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9daf5e64558abef9c4d48bc83ea95bbe78f16167fc296fe77eff372322b40e96","sha256:788582de7bbfbd6a323bd824e7597c3f8bc996732ee4fed752ed09d32c8e1310"],"state_sha256":"b72b21d7f2fc75be8164c2860c9582515d78c203abb69ec45700383885d35169"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Dc08/byqPotAGzFmHjBsfTB4LSG9KHkecwbyvZYq42suODLshwI3zZcUSuE9rvKIGnN0uMQe90159GGsqhf3Dw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-11T03:04:48.838169Z","bundle_sha256":"e7df53d7563e534e22b16fc1b69144cb4ec3e8113fd33e60a4fbca003e90c359"}}