{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:NDZZPEBYLXSMTTI4LKNB4EM5KZ","short_pith_number":"pith:NDZZPEBY","canonical_record":{"source":{"id":"2502.21195","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2025-02-28T16:14:00Z","cross_cats_sorted":[],"title_canon_sha256":"35beabb2769a10d0815e7149ed768698fcb4fe00a1a3ced2796ddf1c700a1170","abstract_canon_sha256":"bff9e3f176e0b121b2c9bb80dee2c349db28873fe3203e451d5153b91fa7bda2"},"schema_version":"1.0"},"canonical_sha256":"68f39790385de4c9cd1c5a9a1e119d5658f9b4cd555a64ed5dfaae37bbdefe26","source":{"kind":"arxiv","id":"2502.21195","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.21195","created_at":"2026-07-05T10:21:46Z"},{"alias_kind":"arxiv_version","alias_value":"2502.21195v1","created_at":"2026-07-05T10:21:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.21195","created_at":"2026-07-05T10:21:46Z"},{"alias_kind":"pith_short_12","alias_value":"NDZZPEBYLXSM","created_at":"2026-07-05T10:21:46Z"},{"alias_kind":"pith_short_16","alias_value":"NDZZPEBYLXSMTTI4","created_at":"2026-07-05T10:21:46Z"},{"alias_kind":"pith_short_8","alias_value":"NDZZPEBY","created_at":"2026-07-05T10:21:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:NDZZPEBYLXSMTTI4LKNB4EM5KZ","target":"record","payload":{"canonical_record":{"source":{"id":"2502.21195","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2025-02-28T16:14:00Z","cross_cats_sorted":[],"title_canon_sha256":"35beabb2769a10d0815e7149ed768698fcb4fe00a1a3ced2796ddf1c700a1170","abstract_canon_sha256":"bff9e3f176e0b121b2c9bb80dee2c349db28873fe3203e451d5153b91fa7bda2"},"schema_version":"1.0"},"canonical_sha256":"68f39790385de4c9cd1c5a9a1e119d5658f9b4cd555a64ed5dfaae37bbdefe26","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:21:46.123108Z","signature_b64":"n49eqEtZOHg3f8svDFYcnnE5lLDJymMR3Ie5GgvEreTFnL7jjnlki6i5D4ajfU3bD0maG2epWvnWgy49YcaXAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"68f39790385de4c9cd1c5a9a1e119d5658f9b4cd555a64ed5dfaae37bbdefe26","last_reissued_at":"2026-07-05T10:21:46.122619Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:21:46.122619Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2502.21195","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":"2026-07-05T10:21:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hmYpkX8WuwMLRLfP8Qq7hGZikHwcJQyfmD5YbC/MMwLPcm5Vv/EzCduTeVq7AtRcuL1jSHeY7Hb5JoNi1DWxCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T06:12:52.676067Z"},"content_sha256":"8dd798e469264f8b9fded3e1da8081e49035f0440f1b92d42286c63f2e51391b","schema_version":"1.0","event_id":"sha256:8dd798e469264f8b9fded3e1da8081e49035f0440f1b92d42286c63f2e51391b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:NDZZPEBYLXSMTTI4LKNB4EM5KZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Joint Modeling in Recommendations: A Survey","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.IR","authors_text":"Bo Chen, Huifeng Guo, Jingtong Gao, Pengyue Jia, Qidong Liu, Ruiming Tang, Xiangyu Zhao, Xiaopeng Li, Yichao Wang, Yuhao Wang","submitted_at":"2025-02-28T16:14:00Z","abstract_excerpt":"In today's digital landscape, Deep Recommender Systems (DRS) play a crucial role in navigating and customizing online content for individual preferences. However, conventional methods, which mainly depend on single recommendation task, scenario, data modality and user behavior, are increasingly seen as insufficient due to their inability to accurately reflect users' complex and changing preferences. This gap underscores the need for joint modeling approaches, which are central to overcoming these limitations by integrating diverse tasks, scenarios, modalities, and behaviors in the recommendati"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.21195","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/2502.21195/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":"2026-07-05T10:21:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OvJZxltYyoT3gYvCld2ES5BOP2fS8P52sSUlSbCcVrmQ53drvy3cc7DQ15+OSvhw0x/q1+qemWTfnyxghpk2CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T06:12:52.676582Z"},"content_sha256":"6e0676b9a5b55c539a8316b85eafa54390ad1f33a05747a8f07a8a59b529bcff","schema_version":"1.0","event_id":"sha256:6e0676b9a5b55c539a8316b85eafa54390ad1f33a05747a8f07a8a59b529bcff"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NDZZPEBYLXSMTTI4LKNB4EM5KZ/bundle.json","state_url":"https://pith.science/pith/NDZZPEBYLXSMTTI4LKNB4EM5KZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NDZZPEBYLXSMTTI4LKNB4EM5KZ/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":"2026-08-10T06:12:52Z","links":{"resolver":"https://pith.science/pith/NDZZPEBYLXSMTTI4LKNB4EM5KZ","bundle":"https://pith.science/pith/NDZZPEBYLXSMTTI4LKNB4EM5KZ/bundle.json","state":"https://pith.science/pith/NDZZPEBYLXSMTTI4LKNB4EM5KZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NDZZPEBYLXSMTTI4LKNB4EM5KZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:NDZZPEBYLXSMTTI4LKNB4EM5KZ","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":"bff9e3f176e0b121b2c9bb80dee2c349db28873fe3203e451d5153b91fa7bda2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2025-02-28T16:14:00Z","title_canon_sha256":"35beabb2769a10d0815e7149ed768698fcb4fe00a1a3ced2796ddf1c700a1170"},"schema_version":"1.0","source":{"id":"2502.21195","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.21195","created_at":"2026-07-05T10:21:46Z"},{"alias_kind":"arxiv_version","alias_value":"2502.21195v1","created_at":"2026-07-05T10:21:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.21195","created_at":"2026-07-05T10:21:46Z"},{"alias_kind":"pith_short_12","alias_value":"NDZZPEBYLXSM","created_at":"2026-07-05T10:21:46Z"},{"alias_kind":"pith_short_16","alias_value":"NDZZPEBYLXSMTTI4","created_at":"2026-07-05T10:21:46Z"},{"alias_kind":"pith_short_8","alias_value":"NDZZPEBY","created_at":"2026-07-05T10:21:46Z"}],"graph_snapshots":[{"event_id":"sha256:6e0676b9a5b55c539a8316b85eafa54390ad1f33a05747a8f07a8a59b529bcff","target":"graph","created_at":"2026-07-05T10:21:46Z","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/2502.21195/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In today's digital landscape, Deep Recommender Systems (DRS) play a crucial role in navigating and customizing online content for individual preferences. However, conventional methods, which mainly depend on single recommendation task, scenario, data modality and user behavior, are increasingly seen as insufficient due to their inability to accurately reflect users' complex and changing preferences. This gap underscores the need for joint modeling approaches, which are central to overcoming these limitations by integrating diverse tasks, scenarios, modalities, and behaviors in the recommendati","authors_text":"Bo Chen, Huifeng Guo, Jingtong Gao, Pengyue Jia, Qidong Liu, Ruiming Tang, Xiangyu Zhao, Xiaopeng Li, Yichao Wang, Yuhao Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2025-02-28T16:14:00Z","title":"Joint Modeling in Recommendations: A Survey"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.21195","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":"sha256:8dd798e469264f8b9fded3e1da8081e49035f0440f1b92d42286c63f2e51391b","target":"record","created_at":"2026-07-05T10:21:46Z","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":"bff9e3f176e0b121b2c9bb80dee2c349db28873fe3203e451d5153b91fa7bda2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2025-02-28T16:14:00Z","title_canon_sha256":"35beabb2769a10d0815e7149ed768698fcb4fe00a1a3ced2796ddf1c700a1170"},"schema_version":"1.0","source":{"id":"2502.21195","kind":"arxiv","version":1}},"canonical_sha256":"68f39790385de4c9cd1c5a9a1e119d5658f9b4cd555a64ed5dfaae37bbdefe26","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"68f39790385de4c9cd1c5a9a1e119d5658f9b4cd555a64ed5dfaae37bbdefe26","first_computed_at":"2026-07-05T10:21:46.122619Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:21:46.122619Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"n49eqEtZOHg3f8svDFYcnnE5lLDJymMR3Ie5GgvEreTFnL7jjnlki6i5D4ajfU3bD0maG2epWvnWgy49YcaXAg==","signature_status":"signed_v1","signed_at":"2026-07-05T10:21:46.123108Z","signed_message":"canonical_sha256_bytes"},"source_id":"2502.21195","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8dd798e469264f8b9fded3e1da8081e49035f0440f1b92d42286c63f2e51391b","sha256:6e0676b9a5b55c539a8316b85eafa54390ad1f33a05747a8f07a8a59b529bcff"],"state_sha256":"12faa70047096215ec7616e0e722478683fd17cff22d025f25352c39f987533f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/CJxut1TOobdsFISROZIwoAl5WZCaR4pnTOwJQdAvm01mVEYrGkOOwcuFh+sfWi5FB+8SkxGIB00KS3okWVTDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T06:12:52.679858Z","bundle_sha256":"660a9e6b3e7413fabd86ba7042cf946c61147c2f28725c3722e32927cad06370"}}