{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:4T2YOVWQ353T7FYTOUVIGMDH7O","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":"4b3c86ce639f9fad869460e554aaf54eb59c4b06e4f8dbe9549af5f8f717bfed","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2026-07-01T08:13:07Z","title_canon_sha256":"f2ac3fe675132923a0f1e780ff0c8c050ad947d35ebcfc2dbee318ff50444a28"},"schema_version":"1.0","source":{"id":"2607.00588","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.00588","created_at":"2026-07-02T01:17:48Z"},{"alias_kind":"arxiv_version","alias_value":"2607.00588v1","created_at":"2026-07-02T01:17:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.00588","created_at":"2026-07-02T01:17:48Z"},{"alias_kind":"pith_short_12","alias_value":"4T2YOVWQ353T","created_at":"2026-07-02T01:17:48Z"},{"alias_kind":"pith_short_16","alias_value":"4T2YOVWQ353T7FYT","created_at":"2026-07-02T01:17:48Z"},{"alias_kind":"pith_short_8","alias_value":"4T2YOVWQ","created_at":"2026-07-02T01:17:48Z"}],"graph_snapshots":[{"event_id":"sha256:b7ac7ea6f33a725ba4ce88db8e35f67c48a304495dfce24614cc91979f315333","target":"graph","created_at":"2026-07-02T01:17:48Z","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/2607.00588/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Continuous diffusion language models such as ELF report record-low generative perplexity (Gen-PPL). We find a catch: these models repeat far more than human text, and Gen-PPL rewards rather than penalizes that repetition, so its low scores overstate quality. Strip the repetition and ELF-B's Gen-PPL rises from $19.5$ to $27.7$; the smallest model even posts the best Gen-PPL because it repeats most. We trace the repetition to its source: a contractive attractor along a \\emph{single direction} in the self-conditioning feedback loop, the loop that feeds each step's clean estimate into the next. Be","authors_text":"Hongliang He, Lun Du, Shuai Zhang, Zhenzhong Lan, Zijie Chen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2026-07-01T08:13:07Z","title":"Low Perplexity is Repetition: A One-Dimensional Self-Conditioning Attractor in Continuous Diffusion LMs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.00588","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:de55981951e8766709c6df231a26cac50911b0da4748436692036a47a3b7926d","target":"record","created_at":"2026-07-02T01:17:48Z","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":"4b3c86ce639f9fad869460e554aaf54eb59c4b06e4f8dbe9549af5f8f717bfed","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2026-07-01T08:13:07Z","title_canon_sha256":"f2ac3fe675132923a0f1e780ff0c8c050ad947d35ebcfc2dbee318ff50444a28"},"schema_version":"1.0","source":{"id":"2607.00588","kind":"arxiv","version":1}},"canonical_sha256":"e4f58756d0df773f9713752a833067fbb8ffda6584ec8b8f477c8debf465fa3e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e4f58756d0df773f9713752a833067fbb8ffda6584ec8b8f477c8debf465fa3e","first_computed_at":"2026-07-02T01:17:48.331719Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-02T01:17:48.331719Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pgCy8KH/WmOOgcSiFc65F0lJVD0zAZpqa4F2IwK+q+it6z3pg1tyEXZbNjaA8tZZHeczc2Eox2T7O5rofCffCg==","signature_status":"signed_v1","signed_at":"2026-07-02T01:17:48.332088Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.00588","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:de55981951e8766709c6df231a26cac50911b0da4748436692036a47a3b7926d","sha256:b7ac7ea6f33a725ba4ce88db8e35f67c48a304495dfce24614cc91979f315333"],"state_sha256":"326c7f6d75fe7aa33b3fde5ae278a71ae2158082d2790d04bb06364bda5ef0c4"}