{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:OS3AZAWUVRHODXIC7AQKANWRJX","short_pith_number":"pith:OS3AZAWU","canonical_record":{"source":{"id":"2603.07005","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2026-03-07T02:57:27Z","cross_cats_sorted":["stat.ML"],"title_canon_sha256":"f83554649535dc3345359cb170cdbf42d3d286e6671ed61209e6ba768255ab84","abstract_canon_sha256":"740860c339f444cb1c733c902b25dbcb5ca50aa11fea623ce501bd262ab5d22d"},"schema_version":"1.0"},"canonical_sha256":"74b60c82d4ac4ee1dd02f820a036d14dec00d048ab71e746948a7f962a075f24","source":{"kind":"arxiv","id":"2603.07005","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2603.07005","created_at":"2026-06-23T02:12:47Z"},{"alias_kind":"arxiv_version","alias_value":"2603.07005v2","created_at":"2026-06-23T02:12:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2603.07005","created_at":"2026-06-23T02:12:47Z"},{"alias_kind":"pith_short_12","alias_value":"OS3AZAWUVRHO","created_at":"2026-06-23T02:12:47Z"},{"alias_kind":"pith_short_16","alias_value":"OS3AZAWUVRHODXIC","created_at":"2026-06-23T02:12:47Z"},{"alias_kind":"pith_short_8","alias_value":"OS3AZAWU","created_at":"2026-06-23T02:12:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:OS3AZAWUVRHODXIC7AQKANWRJX","target":"record","payload":{"canonical_record":{"source":{"id":"2603.07005","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2026-03-07T02:57:27Z","cross_cats_sorted":["stat.ML"],"title_canon_sha256":"f83554649535dc3345359cb170cdbf42d3d286e6671ed61209e6ba768255ab84","abstract_canon_sha256":"740860c339f444cb1c733c902b25dbcb5ca50aa11fea623ce501bd262ab5d22d"},"schema_version":"1.0"},"canonical_sha256":"74b60c82d4ac4ee1dd02f820a036d14dec00d048ab71e746948a7f962a075f24","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-23T02:12:47.582524Z","signature_b64":"OHP2344cGFnYFh4uxku4Ih7y9pSyb287CxyO5ME/D/94BzcU8ed5p0+/Npc2qMPJ8a9o/6NVYBXBJJLf3aXVCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"74b60c82d4ac4ee1dd02f820a036d14dec00d048ab71e746948a7f962a075f24","last_reissued_at":"2026-06-23T02:12:47.582027Z","signature_status":"signed_v1","first_computed_at":"2026-06-23T02:12:47.582027Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2603.07005","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":"2026-06-23T02:12:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gUrWEsU1Mnd4b7GYH9ZrMYmporkiF7rDFplgzg/eOkCQRqd459mLSRwTU8/gK15W6QKR6FBVWp1ks9O5yQUICQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T18:47:58.430050Z"},"content_sha256":"e35f1beeaaff69c7ade00aab25d9a30d414b0734718d08670c126446fd30d099","schema_version":"1.0","event_id":"sha256:e35f1beeaaff69c7ade00aab25d9a30d414b0734718d08670c126446fd30d099"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:OS3AZAWUVRHODXIC7AQKANWRJX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Combinatorial Allocation Bandits with Nonlinear Arm Utility","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["stat.ML"],"primary_cat":"cs.LG","authors_text":"Koichi Tanaka, Shinji Ito, Yuki Shibukawa, Yuta Saito","submitted_at":"2026-03-07T02:57:27Z","abstract_excerpt":"A matching platform is a system that matches participants of different types, such as companies and job-seekers. In such a platform, maximizing matches may concentrate assignments on popular participants, increasing dissatisfaction among others, and eventually causing churn, which reduces the platform's profit opportunities. To address this issue, we propose a novel online learning problem, Combinatorial Allocation Bandits (CAB), which incorporates the notion of *arm satisfaction*. In CAB, at each round, the learner observes feature vectors for $K$ arms and $N$ users, assigns users to arms, an"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2603.07005","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/2603.07005/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":"2026-06-23T02:12:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oIJ3jLPT/u2dPFY1lIS8Z7FquaSn+8ALV0jhelLv8DvNN6+XLAX1ZdMTvWe41qjng68eCoJpeQt/mpTNGqtSAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T18:47:58.430565Z"},"content_sha256":"65bf5bb038f8b61e7d8043b79f2292e13218a054f564ace44a661c64d04aa8d1","schema_version":"1.0","event_id":"sha256:65bf5bb038f8b61e7d8043b79f2292e13218a054f564ace44a661c64d04aa8d1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OS3AZAWUVRHODXIC7AQKANWRJX/bundle.json","state_url":"https://pith.science/pith/OS3AZAWUVRHODXIC7AQKANWRJX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OS3AZAWUVRHODXIC7AQKANWRJX/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":"2026-08-21T18:47:58Z","links":{"resolver":"https://pith.science/pith/OS3AZAWUVRHODXIC7AQKANWRJX","bundle":"https://pith.science/pith/OS3AZAWUVRHODXIC7AQKANWRJX/bundle.json","state":"https://pith.science/pith/OS3AZAWUVRHODXIC7AQKANWRJX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OS3AZAWUVRHODXIC7AQKANWRJX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:OS3AZAWUVRHODXIC7AQKANWRJX","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":"740860c339f444cb1c733c902b25dbcb5ca50aa11fea623ce501bd262ab5d22d","cross_cats_sorted":["stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2026-03-07T02:57:27Z","title_canon_sha256":"f83554649535dc3345359cb170cdbf42d3d286e6671ed61209e6ba768255ab84"},"schema_version":"1.0","source":{"id":"2603.07005","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2603.07005","created_at":"2026-06-23T02:12:47Z"},{"alias_kind":"arxiv_version","alias_value":"2603.07005v2","created_at":"2026-06-23T02:12:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2603.07005","created_at":"2026-06-23T02:12:47Z"},{"alias_kind":"pith_short_12","alias_value":"OS3AZAWUVRHO","created_at":"2026-06-23T02:12:47Z"},{"alias_kind":"pith_short_16","alias_value":"OS3AZAWUVRHODXIC","created_at":"2026-06-23T02:12:47Z"},{"alias_kind":"pith_short_8","alias_value":"OS3AZAWU","created_at":"2026-06-23T02:12:47Z"}],"graph_snapshots":[{"event_id":"sha256:65bf5bb038f8b61e7d8043b79f2292e13218a054f564ace44a661c64d04aa8d1","target":"graph","created_at":"2026-06-23T02:12:47Z","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/2603.07005/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A matching platform is a system that matches participants of different types, such as companies and job-seekers. In such a platform, maximizing matches may concentrate assignments on popular participants, increasing dissatisfaction among others, and eventually causing churn, which reduces the platform's profit opportunities. To address this issue, we propose a novel online learning problem, Combinatorial Allocation Bandits (CAB), which incorporates the notion of *arm satisfaction*. In CAB, at each round, the learner observes feature vectors for $K$ arms and $N$ users, assigns users to arms, an","authors_text":"Koichi Tanaka, Shinji Ito, Yuki Shibukawa, Yuta Saito","cross_cats":["stat.ML"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2026-03-07T02:57:27Z","title":"Combinatorial Allocation Bandits with Nonlinear Arm Utility"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2603.07005","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:e35f1beeaaff69c7ade00aab25d9a30d414b0734718d08670c126446fd30d099","target":"record","created_at":"2026-06-23T02:12:47Z","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":"740860c339f444cb1c733c902b25dbcb5ca50aa11fea623ce501bd262ab5d22d","cross_cats_sorted":["stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2026-03-07T02:57:27Z","title_canon_sha256":"f83554649535dc3345359cb170cdbf42d3d286e6671ed61209e6ba768255ab84"},"schema_version":"1.0","source":{"id":"2603.07005","kind":"arxiv","version":2}},"canonical_sha256":"74b60c82d4ac4ee1dd02f820a036d14dec00d048ab71e746948a7f962a075f24","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"74b60c82d4ac4ee1dd02f820a036d14dec00d048ab71e746948a7f962a075f24","first_computed_at":"2026-06-23T02:12:47.582027Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-23T02:12:47.582027Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OHP2344cGFnYFh4uxku4Ih7y9pSyb287CxyO5ME/D/94BzcU8ed5p0+/Npc2qMPJ8a9o/6NVYBXBJJLf3aXVCA==","signature_status":"signed_v1","signed_at":"2026-06-23T02:12:47.582524Z","signed_message":"canonical_sha256_bytes"},"source_id":"2603.07005","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e35f1beeaaff69c7ade00aab25d9a30d414b0734718d08670c126446fd30d099","sha256:65bf5bb038f8b61e7d8043b79f2292e13218a054f564ace44a661c64d04aa8d1"],"state_sha256":"e2e66f0cfbf2125ba6c1fa2b376e56ba0f3af7a2f583106da4d26535acf62a13"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8iKaEHVaPkYHq35xLXCX/KKjufkoVUV/KMUkh31b82DaWZPP+JqHLBAhqvgHDmdnFFhfyaMtrajPt87ZzyxvDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-21T18:47:58.436046Z","bundle_sha256":"b380e427c8e75443715c0842efc728c57b90e316503c9758bf81d09a95425a70"}}