{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:DPVIYR33Z4FVSRDH2NK6BGADQI","short_pith_number":"pith:DPVIYR33","canonical_record":{"source":{"id":"2506.00983","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.IR","submitted_at":"2025-06-01T12:30:58Z","cross_cats_sorted":["cs.AI","cs.CL","cs.LG"],"title_canon_sha256":"2e093b59b0ddf58aad0a1f7908b25d61348d5f9f4941302bee29d60a4217ad86","abstract_canon_sha256":"86ee1ab524a79f6850c56f57f83ec3b9ff8286bac46bd016c3c4111d9889c97f"},"schema_version":"1.0"},"canonical_sha256":"1bea8c477bcf0b594467d355e09803822cbb478fac761362419f97fdf4397db5","source":{"kind":"arxiv","id":"2506.00983","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.00983","created_at":"2026-07-05T11:13:43Z"},{"alias_kind":"arxiv_version","alias_value":"2506.00983v1","created_at":"2026-07-05T11:13:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.00983","created_at":"2026-07-05T11:13:43Z"},{"alias_kind":"pith_short_12","alias_value":"DPVIYR33Z4FV","created_at":"2026-07-05T11:13:43Z"},{"alias_kind":"pith_short_16","alias_value":"DPVIYR33Z4FVSRDH","created_at":"2026-07-05T11:13:43Z"},{"alias_kind":"pith_short_8","alias_value":"DPVIYR33","created_at":"2026-07-05T11:13:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:DPVIYR33Z4FVSRDH2NK6BGADQI","target":"record","payload":{"canonical_record":{"source":{"id":"2506.00983","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.IR","submitted_at":"2025-06-01T12:30:58Z","cross_cats_sorted":["cs.AI","cs.CL","cs.LG"],"title_canon_sha256":"2e093b59b0ddf58aad0a1f7908b25d61348d5f9f4941302bee29d60a4217ad86","abstract_canon_sha256":"86ee1ab524a79f6850c56f57f83ec3b9ff8286bac46bd016c3c4111d9889c97f"},"schema_version":"1.0"},"canonical_sha256":"1bea8c477bcf0b594467d355e09803822cbb478fac761362419f97fdf4397db5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:13:43.990444Z","signature_b64":"N+XtpI2pW0V55I7SCwakpHO4twBST2csmIRLRl3DlDK4ol/yM/UWOTGhDS1CkJTuG9aRZr6IL5U2CjbA6T4RDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1bea8c477bcf0b594467d355e09803822cbb478fac761362419f97fdf4397db5","last_reissued_at":"2026-07-05T11:13:43.990011Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:13:43.990011Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2506.00983","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":"2026-07-05T11:13:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3lgTsMfeg0PsgGKXFwAaIWCn6wfM8xtwj93MiANfZE90AQNhs5E2OBhkQbR9DRbBERqDqRETrUA8eWYsEAIXAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T22:42:57.792612Z"},"content_sha256":"560ce257c8ee6a8f3e7fcc3ef089a5742cb50f2c4ee80849eade350bcf6c55b0","schema_version":"1.0","event_id":"sha256:560ce257c8ee6a8f3e7fcc3ef089a5742cb50f2c4ee80849eade350bcf6c55b0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:DPVIYR33Z4FVSRDH2NK6BGADQI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Bridging the Gap: From Ad-hoc to Proactive Search in Conversations","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.AI","cs.CL","cs.LG"],"primary_cat":"cs.IR","authors_text":"Chuan Meng, Emine Yilmaz, Fengran Mo, Francesco Tonolini, Gabriella Kazai, Nikolaos Aletras","submitted_at":"2025-06-01T12:30:58Z","abstract_excerpt":"Proactive search in conversations (PSC) aims to reduce user effort in formulating explicit queries by proactively retrieving useful relevant information given conversational context. Previous work in PSC either directly uses this context as input to off-the-shelf ad-hoc retrievers or further fine-tunes them on PSC data. However, ad-hoc retrievers are pre-trained on short and concise queries, while the PSC input is longer and noisier. This input mismatch between ad-hoc search and PSC limits retrieval quality. While fine-tuning on PSC data helps, its benefits remain constrained by this input gap"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.00983","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/2506.00983/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":"2026-07-05T11:13:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eXlyfZwmlh45knfNJt2MHzMCtwxsBIGDQ+tt1WPBdolrvnhLAho0LmTmRriNs6h9OJGf6fKdd6SRiG+N7AVCCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T22:42:57.793008Z"},"content_sha256":"ca88309e8157d24dde3219a8430cfa3dd659c50f0f0a34f663a6371e6523819d","schema_version":"1.0","event_id":"sha256:ca88309e8157d24dde3219a8430cfa3dd659c50f0f0a34f663a6371e6523819d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DPVIYR33Z4FVSRDH2NK6BGADQI/bundle.json","state_url":"https://pith.science/pith/DPVIYR33Z4FVSRDH2NK6BGADQI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DPVIYR33Z4FVSRDH2NK6BGADQI/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":"2026-08-07T22:42:57Z","links":{"resolver":"https://pith.science/pith/DPVIYR33Z4FVSRDH2NK6BGADQI","bundle":"https://pith.science/pith/DPVIYR33Z4FVSRDH2NK6BGADQI/bundle.json","state":"https://pith.science/pith/DPVIYR33Z4FVSRDH2NK6BGADQI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DPVIYR33Z4FVSRDH2NK6BGADQI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:DPVIYR33Z4FVSRDH2NK6BGADQI","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":"86ee1ab524a79f6850c56f57f83ec3b9ff8286bac46bd016c3c4111d9889c97f","cross_cats_sorted":["cs.AI","cs.CL","cs.LG"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.IR","submitted_at":"2025-06-01T12:30:58Z","title_canon_sha256":"2e093b59b0ddf58aad0a1f7908b25d61348d5f9f4941302bee29d60a4217ad86"},"schema_version":"1.0","source":{"id":"2506.00983","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.00983","created_at":"2026-07-05T11:13:43Z"},{"alias_kind":"arxiv_version","alias_value":"2506.00983v1","created_at":"2026-07-05T11:13:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.00983","created_at":"2026-07-05T11:13:43Z"},{"alias_kind":"pith_short_12","alias_value":"DPVIYR33Z4FV","created_at":"2026-07-05T11:13:43Z"},{"alias_kind":"pith_short_16","alias_value":"DPVIYR33Z4FVSRDH","created_at":"2026-07-05T11:13:43Z"},{"alias_kind":"pith_short_8","alias_value":"DPVIYR33","created_at":"2026-07-05T11:13:43Z"}],"graph_snapshots":[{"event_id":"sha256:ca88309e8157d24dde3219a8430cfa3dd659c50f0f0a34f663a6371e6523819d","target":"graph","created_at":"2026-07-05T11:13:43Z","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/2506.00983/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Proactive search in conversations (PSC) aims to reduce user effort in formulating explicit queries by proactively retrieving useful relevant information given conversational context. Previous work in PSC either directly uses this context as input to off-the-shelf ad-hoc retrievers or further fine-tunes them on PSC data. However, ad-hoc retrievers are pre-trained on short and concise queries, while the PSC input is longer and noisier. This input mismatch between ad-hoc search and PSC limits retrieval quality. While fine-tuning on PSC data helps, its benefits remain constrained by this input gap","authors_text":"Chuan Meng, Emine Yilmaz, Fengran Mo, Francesco Tonolini, Gabriella Kazai, Nikolaos Aletras","cross_cats":["cs.AI","cs.CL","cs.LG"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.IR","submitted_at":"2025-06-01T12:30:58Z","title":"Bridging the Gap: From Ad-hoc to Proactive Search in Conversations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.00983","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":"sha256:560ce257c8ee6a8f3e7fcc3ef089a5742cb50f2c4ee80849eade350bcf6c55b0","target":"record","created_at":"2026-07-05T11:13:43Z","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":"86ee1ab524a79f6850c56f57f83ec3b9ff8286bac46bd016c3c4111d9889c97f","cross_cats_sorted":["cs.AI","cs.CL","cs.LG"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.IR","submitted_at":"2025-06-01T12:30:58Z","title_canon_sha256":"2e093b59b0ddf58aad0a1f7908b25d61348d5f9f4941302bee29d60a4217ad86"},"schema_version":"1.0","source":{"id":"2506.00983","kind":"arxiv","version":1}},"canonical_sha256":"1bea8c477bcf0b594467d355e09803822cbb478fac761362419f97fdf4397db5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1bea8c477bcf0b594467d355e09803822cbb478fac761362419f97fdf4397db5","first_computed_at":"2026-07-05T11:13:43.990011Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:13:43.990011Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"N+XtpI2pW0V55I7SCwakpHO4twBST2csmIRLRl3DlDK4ol/yM/UWOTGhDS1CkJTuG9aRZr6IL5U2CjbA6T4RDg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:13:43.990444Z","signed_message":"canonical_sha256_bytes"},"source_id":"2506.00983","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:560ce257c8ee6a8f3e7fcc3ef089a5742cb50f2c4ee80849eade350bcf6c55b0","sha256:ca88309e8157d24dde3219a8430cfa3dd659c50f0f0a34f663a6371e6523819d"],"state_sha256":"202edccf161be5fa3fb91effa1e5286907c0dff6e383f6bfaa342a4ee60afdfb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XD7prUEuhAr7cOBPVmB6BtsZxiGlsX1b3MVOBB1eNcV6zSBZGskquSQuVbLPKugu6msZwR5F+Ypis5REeRJlDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T22:42:57.795874Z","bundle_sha256":"79cebfe4aa10f0f624a6b12a3fa02c63aa6b43917714015a70e916d7188364d1"}}