{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:YICLPSJF232SB7VKGB7U4MWTKK","merge_version":"pith-open-graph-merge-v1","event_count":3,"valid_event_count":3,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"acf7e2ec5d57e77c3b790a633e1556d7c3327fb956661834f2460f42c45a0698","cross_cats_sorted":["cs.DC","cs.OS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2026-08-13T14:01:21Z","title_canon_sha256":"ae60da6a3943163df4698a17632902026304a4e540b4e0e3b57ace4ad176556b"},"schema_version":"1.0","source":{"id":"2608.13263","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.13263","created_at":"2026-08-14T01:00:48Z"},{"alias_kind":"arxiv_version","alias_value":"2608.13263v1","created_at":"2026-08-14T01:00:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.13263","created_at":"2026-08-14T01:00:48Z"},{"alias_kind":"pith_short_12","alias_value":"YICLPSJF232S","created_at":"2026-08-14T01:00:48Z"},{"alias_kind":"pith_short_16","alias_value":"YICLPSJF232SB7VK","created_at":"2026-08-14T01:00:48Z"},{"alias_kind":"pith_short_8","alias_value":"YICLPSJF","created_at":"2026-08-14T01:00:48Z"}],"graph_snapshots":[{"event_id":"sha256:907a306ae199dd93951c0ace2b96540a2f6160f700e0cca6068d3b086f90b188","target":"graph","created_at":"2026-08-14T01:00:48Z","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/2608.13263/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Large language model serving faces a critical memory bottleneck: the KV cache grows with sequence length and batch size. PagedAttention uses fixed-size memory blocks to reduce allocator-level fragmentation, but recent KV eviction algorithms operate at a token granularity finer than block-level management. This mismatch causes intra-block fragmentation, leaving a large fraction of allocated KV memory unreclaimable. We present vToken, a lightweight token-level virtualization layer that decouples logical token liveness from physical block placement. vToken maintains a stable logical token view th","authors_text":"Dongsheng Li, Hongjia Chen, Qianru Lv, Wenfei Wu, Xiangrui Yang, Yuanfeng Chen, Yuanhang Gao","cross_cats":["cs.DC","cs.OS"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2026-08-13T14:01:21Z","title":"vToken: Token-Level Virtualization for Reclaimable KV Caches"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.13263","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":"sha256:26ad9688264f0d01a045285eae13262c7738525f59a776fe62f1641789048dd7","target":"record","created_at":"2026-08-14T01:00:48Z","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":"acf7e2ec5d57e77c3b790a633e1556d7c3327fb956661834f2460f42c45a0698","cross_cats_sorted":["cs.DC","cs.OS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2026-08-13T14:01:21Z","title_canon_sha256":"ae60da6a3943163df4698a17632902026304a4e540b4e0e3b57ace4ad176556b"},"schema_version":"1.0","source":{"id":"2608.13263","kind":"arxiv","version":1}},"canonical_sha256":"c204b7c925d6f520feaa307f4e32d352ac02070f85511e7af900aa74579c56c0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c204b7c925d6f520feaa307f4e32d352ac02070f85511e7af900aa74579c56c0","first_computed_at":"2026-08-14T01:00:48.504484Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-08-14T01:00:48.504484Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0yqzUmxugHUx/kRe/PStuhNst5Qm0KoWK6PnbENjC7P8FIQFBkQTiv4vBC24gZiZTYSpu2qJLYeD/Pe/NDr8DQ==","signature_status":"signed_v1","signed_at":"2026-08-14T01:00:48.506559Z","signed_message":"canonical_sha256_bytes"},"source_id":"2608.13263","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:26ad9688264f0d01a045285eae13262c7738525f59a776fe62f1641789048dd7","sha256:907a306ae199dd93951c0ace2b96540a2f6160f700e0cca6068d3b086f90b188","sha256:96e6464eb91fc5ca564a1687cc852e0f2220c7091d88857cdb0d57ba3d7849e0"],"state_sha256":"c503c071bfaf5b39c047d31d3630cd4f934ea75aa5240a905f01bce92a58831c"}