{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:6JBT2DBK2Z2RL6TXJXGSXLXTYQ","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":"abb4152c6968814d6eacaf7bd6707fa2745cdc724d86200b7bd70dfe1dae94ab","cross_cats_sorted":["cs.IR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DL","submitted_at":"2013-03-28T15:27:16Z","title_canon_sha256":"39f0be90394e0c7d0c542b3502fe5134820e3e1b1e746ab32d20d356fe1ca150"},"schema_version":"1.0","source":{"id":"1303.7149","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.7149","created_at":"2026-05-18T03:29:29Z"},{"alias_kind":"arxiv_version","alias_value":"1303.7149v2","created_at":"2026-05-18T03:29:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.7149","created_at":"2026-05-18T03:29:29Z"},{"alias_kind":"pith_short_12","alias_value":"6JBT2DBK2Z2R","created_at":"2026-05-18T12:27:36Z"},{"alias_kind":"pith_short_16","alias_value":"6JBT2DBK2Z2RL6TX","created_at":"2026-05-18T12:27:36Z"},{"alias_kind":"pith_short_8","alias_value":"6JBT2DBK","created_at":"2026-05-18T12:27:36Z"}],"graph_snapshots":[{"event_id":"sha256:b835c427dd8ea34f8a80e9e481b23357019536078e120a70b97b5933d3b60989","target":"graph","created_at":"2026-05-18T03:29:29Z","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":"There are two principal data sources for collaborative filtering recommenders in scholarly digital libraries: usage data obtained from harvesting a large, distributed collection of Open URL web logs and citation data obtained from the journal articles. This study explores the characteristics of recommendations generated by implementations of these two methods: the 'bX' system by ExLibris and an experimental citation-based recommender, Sarkanto. Recommendations from each system were compared according to their semantic similarity to the seed article that was used to generate them. Since the ful","authors_text":"Andr\\'e Vellino","cross_cats":["cs.IR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DL","submitted_at":"2013-03-28T15:27:16Z","title":"Usage-based vs. Citation-based Methods for Recommending Scholarly Research Articles"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.7149","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:b34c35b266e57943f9801f2c4732d69dc25999c69803de0de26ba47fc531bc5f","target":"record","created_at":"2026-05-18T03:29:29Z","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":"abb4152c6968814d6eacaf7bd6707fa2745cdc724d86200b7bd70dfe1dae94ab","cross_cats_sorted":["cs.IR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DL","submitted_at":"2013-03-28T15:27:16Z","title_canon_sha256":"39f0be90394e0c7d0c542b3502fe5134820e3e1b1e746ab32d20d356fe1ca150"},"schema_version":"1.0","source":{"id":"1303.7149","kind":"arxiv","version":2}},"canonical_sha256":"f2433d0c2ad67515fa774dcd2baef3c41bb714e8d60cf87d4d959e7b09c3302a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f2433d0c2ad67515fa774dcd2baef3c41bb714e8d60cf87d4d959e7b09c3302a","first_computed_at":"2026-05-18T03:29:29.077716Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:29:29.077716Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dd44ruiaSDEM8Duq+WS2HmjwXS74lsfLfB5O/ixZttr8LqpZ4+YOaOZKSku+ZQ5zl2rskhLbEiLCnh+OR1QcDw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:29:29.078302Z","signed_message":"canonical_sha256_bytes"},"source_id":"1303.7149","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b34c35b266e57943f9801f2c4732d69dc25999c69803de0de26ba47fc531bc5f","sha256:b835c427dd8ea34f8a80e9e481b23357019536078e120a70b97b5933d3b60989"],"state_sha256":"7767748d4de351307499480a171c876592acc5e07dafa65dedd63a804821ca3f"}