{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:A4GH7VZHW3IR2EATRZDARN67II","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":"9e99f3326702b5a35d4cb1645f601d3987a3e9608f0b034ddf925e2af2e83941","cross_cats_sorted":["cs.AI","cs.CL","cs.LG"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2026-05-28T06:30:43Z","title_canon_sha256":"0878e9bfe10d1cf40439077a38f5bffb043099061ea9478c5e8087561c012fd6"},"schema_version":"1.0","source":{"id":"2605.29434","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.29434","created_at":"2026-05-29T01:05:38Z"},{"alias_kind":"arxiv_version","alias_value":"2605.29434v1","created_at":"2026-05-29T01:05:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.29434","created_at":"2026-05-29T01:05:38Z"},{"alias_kind":"pith_short_12","alias_value":"A4GH7VZHW3IR","created_at":"2026-05-29T01:05:38Z"},{"alias_kind":"pith_short_16","alias_value":"A4GH7VZHW3IR2EAT","created_at":"2026-05-29T01:05:38Z"},{"alias_kind":"pith_short_8","alias_value":"A4GH7VZH","created_at":"2026-05-29T01:05:38Z"}],"graph_snapshots":[{"event_id":"sha256:1352d8b0e582ef37aa855a03754984e40c0b271142ef965a9f60d3d8b68f971f","target":"graph","created_at":"2026-05-29T01:05:38Z","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/2605.29434/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Existing sentence-level watermarking methods enhance robustness to paraphrasing by anchoring watermarks in sentence semantics. However, their prefix-based designs remain vulnerable to structural perturbations, such as sentence splitting and merging, which commonly arise under strong paraphrasers like DIPPER and GPT-3.5. To mitigate this issue, we propose AliMark, a framework that reformulates sentence-level watermarking as a bit sequence encoding and alignment problem between a potentially watermarked text and a secret bit sequence. Notably, our approach adopts a two-stage detection strategy: ","authors_text":"Bryan Hooi, Jiaheng Zhang, Linyu Wu, Tri Cao, Wenjie Qu, Yuexin Li, Yufei He, Yulin Chen","cross_cats":["cs.AI","cs.CL","cs.LG"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2026-05-28T06:30:43Z","title":"AliMark: Enhancing Robustness of Sentence-Level Watermarking Against Text Paraphrasing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.29434","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:a0be980d0d4086b987250734eafdcbc0b322d080842687f1167b5187daeacbf7","target":"record","created_at":"2026-05-29T01:05:38Z","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":"9e99f3326702b5a35d4cb1645f601d3987a3e9608f0b034ddf925e2af2e83941","cross_cats_sorted":["cs.AI","cs.CL","cs.LG"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2026-05-28T06:30:43Z","title_canon_sha256":"0878e9bfe10d1cf40439077a38f5bffb043099061ea9478c5e8087561c012fd6"},"schema_version":"1.0","source":{"id":"2605.29434","kind":"arxiv","version":1}},"canonical_sha256":"070c7fd727b6d11d10138e4608b7df4219d8dd0e9c11fc188f67329589da1bd7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"070c7fd727b6d11d10138e4608b7df4219d8dd0e9c11fc188f67329589da1bd7","first_computed_at":"2026-05-29T01:05:38.812086Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-29T01:05:38.812086Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pdEl6YIJyfcc8WW3BAFjwpIfOmMPoCg2LpI/m8PP8fy1JxyHE6OuVDqX5z/oGH6Friv9HbzeQaIsSLVq+cO1Dw==","signature_status":"signed_v1","signed_at":"2026-05-29T01:05:38.812961Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.29434","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a0be980d0d4086b987250734eafdcbc0b322d080842687f1167b5187daeacbf7","sha256:1352d8b0e582ef37aa855a03754984e40c0b271142ef965a9f60d3d8b68f971f"],"state_sha256":"3c716e77050b515a7eb1b37887e0d0314196fdee087de6c24d858b1d2b67a791"}