{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:5Q4PEPLDFEQKOHDXRTGUS7BYTD","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":"dffb45db30aef0f7940a5b70f8d7e2128066e75466d834559c3e27f979360070","cross_cats_sorted":["cs.LG"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CL","submitted_at":"2026-07-07T07:40:00Z","title_canon_sha256":"026b193b309655c457cdc1bc3e1f74accf527403d5b6612b596586c84080883c"},"schema_version":"1.0","source":{"id":"2607.05937","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.05937","created_at":"2026-07-08T01:18:50Z"},{"alias_kind":"arxiv_version","alias_value":"2607.05937v1","created_at":"2026-07-08T01:18:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.05937","created_at":"2026-07-08T01:18:50Z"},{"alias_kind":"pith_short_12","alias_value":"5Q4PEPLDFEQK","created_at":"2026-07-08T01:18:50Z"},{"alias_kind":"pith_short_16","alias_value":"5Q4PEPLDFEQKOHDX","created_at":"2026-07-08T01:18:50Z"},{"alias_kind":"pith_short_8","alias_value":"5Q4PEPLD","created_at":"2026-07-08T01:18:50Z"}],"graph_snapshots":[{"event_id":"sha256:4049a640af74789c4dfcf8bf0b8b3e2380f4afadb5f2317f36ad7ac43e4cd784","target":"graph","created_at":"2026-07-08T01:18:50Z","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/2607.05937/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Sentiment analysis with frozen pre-trained language model (PLM) backbones has become a common paradigm, yet the practical benefit of explicit domain adaptation remains unclear, particularly when backbones encode varying degrees of target-domain knowledge. We present a preliminary case study evaluating a controlled family of frozen embedding backbones (Qwen3-Embedding 0.6B, 4B, 8B), alongside RoBERTa-base and FinBERT. We train a lightweight MLP adapter on consumer reviews using Domain-Adversarial Neural Networks (DANN), Maximum Mean Discrepancy (MMD), and Supervised Contrastive Learning (SCL), ","authors_text":"Artin Lahni, Phat Tran, Pranav Kulkarni, Yaolun Zhang","cross_cats":["cs.LG"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CL","submitted_at":"2026-07-07T07:40:00Z","title":"Is Domain Adaptation Always Helpful? A Frozen-Backbone Study of Cross-Domain Sentiment Transfer"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.05937","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":"sha256:6a7e0aea48c470ff9d8d23d122387e48229988e2b02e2e28955dfab66140472d","target":"record","created_at":"2026-07-08T01:18:50Z","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":"dffb45db30aef0f7940a5b70f8d7e2128066e75466d834559c3e27f979360070","cross_cats_sorted":["cs.LG"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CL","submitted_at":"2026-07-07T07:40:00Z","title_canon_sha256":"026b193b309655c457cdc1bc3e1f74accf527403d5b6612b596586c84080883c"},"schema_version":"1.0","source":{"id":"2607.05937","kind":"arxiv","version":1}},"canonical_sha256":"ec38f23d632920a71c778ccd497c3898fa27a7a28148896f86470e48250fb1dc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ec38f23d632920a71c778ccd497c3898fa27a7a28148896f86470e48250fb1dc","first_computed_at":"2026-07-08T01:18:50.871906Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-08T01:18:50.871906Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"daDms1n6UxyC4uaLibZBPb97ys1HFyA4jlq2gLeg8qpTk3TQtyeUrqLVhVCSqpU4JwRXUcfvD6+KrjTlR3Q2BA==","signature_status":"signed_v1","signed_at":"2026-07-08T01:18:50.872373Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.05937","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6a7e0aea48c470ff9d8d23d122387e48229988e2b02e2e28955dfab66140472d","sha256:4049a640af74789c4dfcf8bf0b8b3e2380f4afadb5f2317f36ad7ac43e4cd784"],"state_sha256":"d64013b6f59f86a43f512567f240314fe9c30191eaf6b3db93f3f65f482d8e04"}