{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:ANDA3PSDH7B55VYJ2M6ZPTO5LS","short_pith_number":"pith:ANDA3PSD","canonical_record":{"source":{"id":"2505.16532","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2025-05-22T11:21:51Z","cross_cats_sorted":[],"title_canon_sha256":"01f21a332ace9296481d4edbb99a87f02b765f7e8531f56480af2865b1dfe39b","abstract_canon_sha256":"86fc6db8c531f0e0b1eb272f8b8777412da39776353e5e7f054ea17f5db9b92e"},"schema_version":"1.0"},"canonical_sha256":"03460dbe433fc3ded709d33d97cddd5c94c26b20936a778032f27b0441492ff8","source":{"kind":"arxiv","id":"2505.16532","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.16532","created_at":"2026-06-25T01:17:44Z"},{"alias_kind":"arxiv_version","alias_value":"2505.16532v2","created_at":"2026-06-25T01:17:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.16532","created_at":"2026-06-25T01:17:44Z"},{"alias_kind":"pith_short_12","alias_value":"ANDA3PSDH7B5","created_at":"2026-06-25T01:17:44Z"},{"alias_kind":"pith_short_16","alias_value":"ANDA3PSDH7B55VYJ","created_at":"2026-06-25T01:17:44Z"},{"alias_kind":"pith_short_8","alias_value":"ANDA3PSD","created_at":"2026-06-25T01:17:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:ANDA3PSDH7B55VYJ2M6ZPTO5LS","target":"record","payload":{"canonical_record":{"source":{"id":"2505.16532","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2025-05-22T11:21:51Z","cross_cats_sorted":[],"title_canon_sha256":"01f21a332ace9296481d4edbb99a87f02b765f7e8531f56480af2865b1dfe39b","abstract_canon_sha256":"86fc6db8c531f0e0b1eb272f8b8777412da39776353e5e7f054ea17f5db9b92e"},"schema_version":"1.0"},"canonical_sha256":"03460dbe433fc3ded709d33d97cddd5c94c26b20936a778032f27b0441492ff8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-25T01:17:44.676221Z","signature_b64":"MrpEBdn6omxbptdXgiDFWJWaCRyJ+dkbp/cJos1560OiICvM4Qj3NyO9RGP3yeWKLWI4Px5ep/q2mYjuCfa+Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"03460dbe433fc3ded709d33d97cddd5c94c26b20936a778032f27b0441492ff8","last_reissued_at":"2026-06-25T01:17:44.675733Z","signature_status":"signed_v1","first_computed_at":"2026-06-25T01:17:44.675733Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2505.16532","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":"2026-06-25T01:17:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HFun/JHTqSFTLMUwn4ILN+/GuAUhAFpDbQ0wAApz0ZqTU98jmw5e2u+PLL4a8LS/L+HzSwnbA/Dt80DZg8VQBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-02T21:43:22.350596Z"},"content_sha256":"3bc9042c6724f61a9f0852948ef13828b17f61c5a3166b665301291ddd83b387","schema_version":"1.0","event_id":"sha256:3bc9042c6724f61a9f0852948ef13828b17f61c5a3166b665301291ddd83b387"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:ANDA3PSDH7B55VYJ2M6ZPTO5LS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Causal-Invariant Cross-Domain Out-of-Distribution Recommendation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.IR","authors_text":"Feng Zhu, Hongyang Liu, Jiajie Zhu, Pengfei Ding, Yan Wang, Zhu Sun","submitted_at":"2025-05-22T11:21:51Z","abstract_excerpt":"Cross-Domain Recommendation (CDR) aims to leverage knowledge from a relatively data-richer source domain to address the data sparsity problem in a relatively data-sparser target domain. While CDR methods need to address the distribution shifts between different domains, i.e., cross-domain distribution shifts (CDDS), they typically assume independent and identical distribution (IID) between training and testing data within the target domain. However, this IID assumption rarely holds in real-world scenarios due to single-domain distribution shift (SDDS). The above two co-existing distribution sh"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.16532","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/2505.16532/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":"2026-06-25T01:17:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VwyOuNDYCx5VQV2HhQfW2q2JfHD6ZjyUUv6QvFWj5MN9lKSOlayKt1JSqt2CpM/zzAxYeajAu+JLbxZKl+7qCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-02T21:43:22.350963Z"},"content_sha256":"b381790d62c8fed6c7f1a5dafd5e2d38624b8df0c077ed786ea169d265260fa9","schema_version":"1.0","event_id":"sha256:b381790d62c8fed6c7f1a5dafd5e2d38624b8df0c077ed786ea169d265260fa9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ANDA3PSDH7B55VYJ2M6ZPTO5LS/bundle.json","state_url":"https://pith.science/pith/ANDA3PSDH7B55VYJ2M6ZPTO5LS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ANDA3PSDH7B55VYJ2M6ZPTO5LS/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":"2026-07-02T21:43:22Z","links":{"resolver":"https://pith.science/pith/ANDA3PSDH7B55VYJ2M6ZPTO5LS","bundle":"https://pith.science/pith/ANDA3PSDH7B55VYJ2M6ZPTO5LS/bundle.json","state":"https://pith.science/pith/ANDA3PSDH7B55VYJ2M6ZPTO5LS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ANDA3PSDH7B55VYJ2M6ZPTO5LS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:ANDA3PSDH7B55VYJ2M6ZPTO5LS","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":"86fc6db8c531f0e0b1eb272f8b8777412da39776353e5e7f054ea17f5db9b92e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2025-05-22T11:21:51Z","title_canon_sha256":"01f21a332ace9296481d4edbb99a87f02b765f7e8531f56480af2865b1dfe39b"},"schema_version":"1.0","source":{"id":"2505.16532","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.16532","created_at":"2026-06-25T01:17:44Z"},{"alias_kind":"arxiv_version","alias_value":"2505.16532v2","created_at":"2026-06-25T01:17:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.16532","created_at":"2026-06-25T01:17:44Z"},{"alias_kind":"pith_short_12","alias_value":"ANDA3PSDH7B5","created_at":"2026-06-25T01:17:44Z"},{"alias_kind":"pith_short_16","alias_value":"ANDA3PSDH7B55VYJ","created_at":"2026-06-25T01:17:44Z"},{"alias_kind":"pith_short_8","alias_value":"ANDA3PSD","created_at":"2026-06-25T01:17:44Z"}],"graph_snapshots":[{"event_id":"sha256:b381790d62c8fed6c7f1a5dafd5e2d38624b8df0c077ed786ea169d265260fa9","target":"graph","created_at":"2026-06-25T01:17:44Z","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/2505.16532/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Cross-Domain Recommendation (CDR) aims to leverage knowledge from a relatively data-richer source domain to address the data sparsity problem in a relatively data-sparser target domain. While CDR methods need to address the distribution shifts between different domains, i.e., cross-domain distribution shifts (CDDS), they typically assume independent and identical distribution (IID) between training and testing data within the target domain. However, this IID assumption rarely holds in real-world scenarios due to single-domain distribution shift (SDDS). The above two co-existing distribution sh","authors_text":"Feng Zhu, Hongyang Liu, Jiajie Zhu, Pengfei Ding, Yan Wang, Zhu Sun","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2025-05-22T11:21:51Z","title":"Causal-Invariant Cross-Domain Out-of-Distribution Recommendation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.16532","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":"sha256:3bc9042c6724f61a9f0852948ef13828b17f61c5a3166b665301291ddd83b387","target":"record","created_at":"2026-06-25T01:17:44Z","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":"86fc6db8c531f0e0b1eb272f8b8777412da39776353e5e7f054ea17f5db9b92e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2025-05-22T11:21:51Z","title_canon_sha256":"01f21a332ace9296481d4edbb99a87f02b765f7e8531f56480af2865b1dfe39b"},"schema_version":"1.0","source":{"id":"2505.16532","kind":"arxiv","version":2}},"canonical_sha256":"03460dbe433fc3ded709d33d97cddd5c94c26b20936a778032f27b0441492ff8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"03460dbe433fc3ded709d33d97cddd5c94c26b20936a778032f27b0441492ff8","first_computed_at":"2026-06-25T01:17:44.675733Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-25T01:17:44.675733Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MrpEBdn6omxbptdXgiDFWJWaCRyJ+dkbp/cJos1560OiICvM4Qj3NyO9RGP3yeWKLWI4Px5ep/q2mYjuCfa+Aw==","signature_status":"signed_v1","signed_at":"2026-06-25T01:17:44.676221Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.16532","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3bc9042c6724f61a9f0852948ef13828b17f61c5a3166b665301291ddd83b387","sha256:b381790d62c8fed6c7f1a5dafd5e2d38624b8df0c077ed786ea169d265260fa9"],"state_sha256":"82a384dc402e86dfd98eec23b39b7778d33e38c9d1f05014b186a3ecb8640496"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ERWCWCD8ZffTVI+wnoR266CVxF+JyWnaXicOYiwOGegy/PpRbFAGT/LP05uGJmLbEVuvmCF6SAMmtbKOLPEABg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-02T21:43:22.352969Z","bundle_sha256":"71a5d468549604bb8ff40389922147100007b16ae7d6af3348c90d3ed7ab6ddb"}}