{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:EPJWYONZGUGRYLTYW6JU45YECL","short_pith_number":"pith:EPJWYONZ","canonical_record":{"source":{"id":"2303.00400","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.IR","submitted_at":"2023-03-01T10:39:58Z","cross_cats_sorted":["cs.AI","cs.LG"],"title_canon_sha256":"9133eff2ebddd6f0058ad879e60316b4ea0bb9b0c045c748a954d3741ad82252","abstract_canon_sha256":"10d51b5fa66c081ca623d02e3e460e3b5442353d87da3215aa3c6f8a4273162a"},"schema_version":"1.0"},"canonical_sha256":"23d36c39b9350d1c2e78b7934e770412e5099a0b3510e7afe888835c7286dc9f","source":{"kind":"arxiv","id":"2303.00400","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2303.00400","created_at":"2026-07-05T05:47:08Z"},{"alias_kind":"arxiv_version","alias_value":"2303.00400v1","created_at":"2026-07-05T05:47:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.00400","created_at":"2026-07-05T05:47:08Z"},{"alias_kind":"pith_short_12","alias_value":"EPJWYONZGUGR","created_at":"2026-07-05T05:47:08Z"},{"alias_kind":"pith_short_16","alias_value":"EPJWYONZGUGRYLTY","created_at":"2026-07-05T05:47:08Z"},{"alias_kind":"pith_short_8","alias_value":"EPJWYONZ","created_at":"2026-07-05T05:47:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:EPJWYONZGUGRYLTYW6JU45YECL","target":"record","payload":{"canonical_record":{"source":{"id":"2303.00400","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.IR","submitted_at":"2023-03-01T10:39:58Z","cross_cats_sorted":["cs.AI","cs.LG"],"title_canon_sha256":"9133eff2ebddd6f0058ad879e60316b4ea0bb9b0c045c748a954d3741ad82252","abstract_canon_sha256":"10d51b5fa66c081ca623d02e3e460e3b5442353d87da3215aa3c6f8a4273162a"},"schema_version":"1.0"},"canonical_sha256":"23d36c39b9350d1c2e78b7934e770412e5099a0b3510e7afe888835c7286dc9f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:47:08.839557Z","signature_b64":"2Aa6retHA2oQ6W97yBGKN4ZSuezM1xZL7Tg67wKc4euX1Zy2BEMx4L1PL4o9s/r2r5yQm/vTJkoJtoSUtEZiDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"23d36c39b9350d1c2e78b7934e770412e5099a0b3510e7afe888835c7286dc9f","last_reissued_at":"2026-07-05T05:47:08.839200Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:47:08.839200Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2303.00400","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":"2026-07-05T05:47:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"X4hmZ2ZeAAhWSz4uKQLztx/+spFBTURUyk3ihGXjc3Wo0y99xlzsL6N/FIM57jA7w9EN9rj9RYYnZHp2tc5XAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T15:50:59.080110Z"},"content_sha256":"e2fcb98f6879385f8ff0c6d2134a5c31e68cfecf09860b5ce8032e3df9154b65","schema_version":"1.0","event_id":"sha256:e2fcb98f6879385f8ff0c6d2134a5c31e68cfecf09860b5ce8032e3df9154b65"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:EPJWYONZGUGRYLTYW6JU45YECL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Study on Accuracy, Miscalibration, and Popularity Bias in Recommendations","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.AI","cs.LG"],"primary_cat":"cs.IR","authors_text":"Dominik Kowald, Elisabeth Lex, Gregor Mayr, Markus Schedl","submitted_at":"2023-03-01T10:39:58Z","abstract_excerpt":"Recent research has suggested different metrics to measure the inconsistency of recommendation performance, including the accuracy difference between user groups, miscalibration, and popularity lift. However, a study that relates miscalibration and popularity lift to recommendation accuracy across different user groups is still missing. Additionally, it is unclear if particular genres contribute to the emergence of inconsistency in recommendation performance across user groups. In this paper, we present an analysis of these three aspects of five well-known recommendation algorithms for user gr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.00400","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/2303.00400/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":"2026-07-05T05:47:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8qKypxia3bW2VNKgqpkZvhwsmd+bjb8veCn5E7kbqUvEn7CN/wCp3jQZ4pfYv9ycyaMUQ6AOM9+NodsChYp2Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T15:50:59.080505Z"},"content_sha256":"7a9377cf400cf0e3a3bf6f6fb99cc720dcea11cfa29791d62fb05d66bc9ce928","schema_version":"1.0","event_id":"sha256:7a9377cf400cf0e3a3bf6f6fb99cc720dcea11cfa29791d62fb05d66bc9ce928"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EPJWYONZGUGRYLTYW6JU45YECL/bundle.json","state_url":"https://pith.science/pith/EPJWYONZGUGRYLTYW6JU45YECL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EPJWYONZGUGRYLTYW6JU45YECL/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":"2026-07-05T15:50:59Z","links":{"resolver":"https://pith.science/pith/EPJWYONZGUGRYLTYW6JU45YECL","bundle":"https://pith.science/pith/EPJWYONZGUGRYLTYW6JU45YECL/bundle.json","state":"https://pith.science/pith/EPJWYONZGUGRYLTYW6JU45YECL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EPJWYONZGUGRYLTYW6JU45YECL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:EPJWYONZGUGRYLTYW6JU45YECL","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":"10d51b5fa66c081ca623d02e3e460e3b5442353d87da3215aa3c6f8a4273162a","cross_cats_sorted":["cs.AI","cs.LG"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.IR","submitted_at":"2023-03-01T10:39:58Z","title_canon_sha256":"9133eff2ebddd6f0058ad879e60316b4ea0bb9b0c045c748a954d3741ad82252"},"schema_version":"1.0","source":{"id":"2303.00400","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2303.00400","created_at":"2026-07-05T05:47:08Z"},{"alias_kind":"arxiv_version","alias_value":"2303.00400v1","created_at":"2026-07-05T05:47:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.00400","created_at":"2026-07-05T05:47:08Z"},{"alias_kind":"pith_short_12","alias_value":"EPJWYONZGUGR","created_at":"2026-07-05T05:47:08Z"},{"alias_kind":"pith_short_16","alias_value":"EPJWYONZGUGRYLTY","created_at":"2026-07-05T05:47:08Z"},{"alias_kind":"pith_short_8","alias_value":"EPJWYONZ","created_at":"2026-07-05T05:47:08Z"}],"graph_snapshots":[{"event_id":"sha256:7a9377cf400cf0e3a3bf6f6fb99cc720dcea11cfa29791d62fb05d66bc9ce928","target":"graph","created_at":"2026-07-05T05:47:08Z","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/2303.00400/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Recent research has suggested different metrics to measure the inconsistency of recommendation performance, including the accuracy difference between user groups, miscalibration, and popularity lift. However, a study that relates miscalibration and popularity lift to recommendation accuracy across different user groups is still missing. Additionally, it is unclear if particular genres contribute to the emergence of inconsistency in recommendation performance across user groups. In this paper, we present an analysis of these three aspects of five well-known recommendation algorithms for user gr","authors_text":"Dominik Kowald, Elisabeth Lex, Gregor Mayr, Markus Schedl","cross_cats":["cs.AI","cs.LG"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.IR","submitted_at":"2023-03-01T10:39:58Z","title":"A Study on Accuracy, Miscalibration, and Popularity Bias in Recommendations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.00400","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:e2fcb98f6879385f8ff0c6d2134a5c31e68cfecf09860b5ce8032e3df9154b65","target":"record","created_at":"2026-07-05T05:47:08Z","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":"10d51b5fa66c081ca623d02e3e460e3b5442353d87da3215aa3c6f8a4273162a","cross_cats_sorted":["cs.AI","cs.LG"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.IR","submitted_at":"2023-03-01T10:39:58Z","title_canon_sha256":"9133eff2ebddd6f0058ad879e60316b4ea0bb9b0c045c748a954d3741ad82252"},"schema_version":"1.0","source":{"id":"2303.00400","kind":"arxiv","version":1}},"canonical_sha256":"23d36c39b9350d1c2e78b7934e770412e5099a0b3510e7afe888835c7286dc9f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"23d36c39b9350d1c2e78b7934e770412e5099a0b3510e7afe888835c7286dc9f","first_computed_at":"2026-07-05T05:47:08.839200Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:47:08.839200Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2Aa6retHA2oQ6W97yBGKN4ZSuezM1xZL7Tg67wKc4euX1Zy2BEMx4L1PL4o9s/r2r5yQm/vTJkoJtoSUtEZiDA==","signature_status":"signed_v1","signed_at":"2026-07-05T05:47:08.839557Z","signed_message":"canonical_sha256_bytes"},"source_id":"2303.00400","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e2fcb98f6879385f8ff0c6d2134a5c31e68cfecf09860b5ce8032e3df9154b65","sha256:7a9377cf400cf0e3a3bf6f6fb99cc720dcea11cfa29791d62fb05d66bc9ce928"],"state_sha256":"6c7cb2fb02de9cee73ccfc1ee2acd22994e1c829b269d5037f38d4d1131df28d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OGrzd7QKLfTG2yfKc4OOVPYlWYYczDERSv7E4hiKVlfs23gUID0wJ/Y7Kn9qB5+WGwMnmWK3fPYimOd9Hrj4BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-05T15:50:59.082782Z","bundle_sha256":"6c5f2785371c9040af46e014b2bd276edb422afc747a7352e95d0e09abf2ab61"}}