{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:3WO6T4K5VUN3SKD4PVHEVSGITL","short_pith_number":"pith:3WO6T4K5","schema_version":"1.0","canonical_sha256":"dd9de9f15dad1bb9287c7d4e4ac8c89ae3ad92dc40fbcf8170c936ebc057ae8e","source":{"kind":"arxiv","id":"2606.20890","version":1},"attestation_state":"computed","paper":{"title":"Topic-to-Timestamp Alignment by Constrained Evidence Selection","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.IR"],"primary_cat":"cs.CL","authors_text":"Marina Litvak, Michael F\\\"arber, Zeynep Y{\\i}lb{\\i}rt","submitted_at":"2026-06-18T19:38:57Z","abstract_excerpt":"Meeting archives are difficult to search when users remember what was discussed but not when. We study topic-to-timestamp alignment: given a natural-language topic and a timestamped meeting transcript, the goal is to return the time at which the topic is discussed. A standard RAG setup can retrieve relevant transcript excerpts, but still asks the language model to generate a timestamp, which can produce unsupported or invalid timecodes. We therefore recast timestamp prediction as constrained temporal candidate selection: the system retrieves timestamped transcript chunks, and the model selects"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2606.20890","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2026-06-18T19:38:57Z","cross_cats_sorted":["cs.IR"],"title_canon_sha256":"23f32faa918cb3bb12d20c71869f94158d3ae60f7a88bfe059bd6d9deb971d80","abstract_canon_sha256":"8da80ba3608721369d2089d9b24ce2b6668e19436933a9284026560d2e8d49b4"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-23T00:12:01.901257Z","signature_b64":"e0Rg5qzkHOu7kArjoFSqS8rp10VULJFUxnCV4wnoekVSRmBOR+1i2s5hKw/z9oiy/E5hZDA7LIu/lvsBxBFtCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dd9de9f15dad1bb9287c7d4e4ac8c89ae3ad92dc40fbcf8170c936ebc057ae8e","last_reissued_at":"2026-06-23T00:12:01.900815Z","signature_status":"signed_v1","first_computed_at":"2026-06-23T00:12:01.900815Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Topic-to-Timestamp Alignment by Constrained Evidence Selection","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.IR"],"primary_cat":"cs.CL","authors_text":"Marina Litvak, Michael F\\\"arber, Zeynep Y{\\i}lb{\\i}rt","submitted_at":"2026-06-18T19:38:57Z","abstract_excerpt":"Meeting archives are difficult to search when users remember what was discussed but not when. We study topic-to-timestamp alignment: given a natural-language topic and a timestamped meeting transcript, the goal is to return the time at which the topic is discussed. A standard RAG setup can retrieve relevant transcript excerpts, but still asks the language model to generate a timestamp, which can produce unsupported or invalid timecodes. We therefore recast timestamp prediction as constrained temporal candidate selection: the system retrieves timestamped transcript chunks, and the model selects"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.20890","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/2606.20890/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2606.20890","created_at":"2026-06-23T00:12:01.900874+00:00"},{"alias_kind":"arxiv_version","alias_value":"2606.20890v1","created_at":"2026-06-23T00:12:01.900874+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.20890","created_at":"2026-06-23T00:12:01.900874+00:00"},{"alias_kind":"pith_short_12","alias_value":"3WO6T4K5VUN3","created_at":"2026-06-23T00:12:01.900874+00:00"},{"alias_kind":"pith_short_16","alias_value":"3WO6T4K5VUN3SKD4","created_at":"2026-06-23T00:12:01.900874+00:00"},{"alias_kind":"pith_short_8","alias_value":"3WO6T4K5","created_at":"2026-06-23T00:12:01.900874+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/3WO6T4K5VUN3SKD4PVHEVSGITL","json":"https://pith.science/pith/3WO6T4K5VUN3SKD4PVHEVSGITL.json","graph_json":"https://pith.science/api/pith-number/3WO6T4K5VUN3SKD4PVHEVSGITL/graph.json","events_json":"https://pith.science/api/pith-number/3WO6T4K5VUN3SKD4PVHEVSGITL/events.json","paper":"https://pith.science/paper/3WO6T4K5"},"agent_actions":{"view_html":"https://pith.science/pith/3WO6T4K5VUN3SKD4PVHEVSGITL","download_json":"https://pith.science/pith/3WO6T4K5VUN3SKD4PVHEVSGITL.json","view_paper":"https://pith.science/paper/3WO6T4K5","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2606.20890&json=true","fetch_graph":"https://pith.science/api/pith-number/3WO6T4K5VUN3SKD4PVHEVSGITL/graph.json","fetch_events":"https://pith.science/api/pith-number/3WO6T4K5VUN3SKD4PVHEVSGITL/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/3WO6T4K5VUN3SKD4PVHEVSGITL/action/timestamp_anchor","attest_storage":"https://pith.science/pith/3WO6T4K5VUN3SKD4PVHEVSGITL/action/storage_attestation","attest_author":"https://pith.science/pith/3WO6T4K5VUN3SKD4PVHEVSGITL/action/author_attestation","sign_citation":"https://pith.science/pith/3WO6T4K5VUN3SKD4PVHEVSGITL/action/citation_signature","submit_replication":"https://pith.science/pith/3WO6T4K5VUN3SKD4PVHEVSGITL/action/replication_record"}},"created_at":"2026-06-23T00:12:01.900874+00:00","updated_at":"2026-06-23T00:12:01.900874+00:00"}