{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:4JM2K66OO6YWUMHQJEBPRFKYA2","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":"684ae842ab0b5c92fe04d9ff6376dd3bc7f0f043cd1896df9a447fbc46f92c30","cross_cats_sorted":["cs.AI","cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AR","submitted_at":"2026-07-24T15:15:10Z","title_canon_sha256":"93258552a569658f0706794427d8131052b122c01520156f38722472a714bb3c"},"schema_version":"1.0","source":{"id":"2607.22389","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.22389","created_at":"2026-07-27T01:21:18Z"},{"alias_kind":"arxiv_version","alias_value":"2607.22389v1","created_at":"2026-07-27T01:21:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.22389","created_at":"2026-07-27T01:21:18Z"},{"alias_kind":"pith_short_12","alias_value":"4JM2K66OO6YW","created_at":"2026-07-27T01:21:18Z"},{"alias_kind":"pith_short_16","alias_value":"4JM2K66OO6YWUMHQ","created_at":"2026-07-27T01:21:18Z"},{"alias_kind":"pith_short_8","alias_value":"4JM2K66O","created_at":"2026-07-27T01:21:18Z"}],"graph_snapshots":[{"event_id":"sha256:1f72d6f2f985186b80edda5638bc9d3cf8e88be3a6150d4a14a1548197901158","target":"graph","created_at":"2026-07-27T01:21:18Z","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/2607.22389/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"With the rapid adoption of long-context large language models (LLMs), the continuously growing KV cache during decoding has become the critical memory bottleneck. To tackle this challenge, we propose HiKV, a novel algorithm-hardware co-design that exploits KV cache redundancy through hierarchical importance awareness. Algorithmically, HiKV compresses the KV cache at two granularities: Stage I evicts unimportant tokens within a fixed budget, and Stage II further loads only the significant elements of each retained token, reaching compression ratios unattainable at a single granularity. Architec","authors_text":"Chao Fang, Jun Yin, Man Shi, Marian Verhelst","cross_cats":["cs.AI","cs.LG"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AR","submitted_at":"2026-07-24T15:15:10Z","title":"HiKV: Hierarchical Importance-Aware KV Cache with Hardware Acceleration for LLM Decoding"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.22389","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":"sha256:6e81ae811937887a27d9c8caed82f1aec6fe103bd699d759c66d5552cb5c9154","target":"record","created_at":"2026-07-27T01:21:18Z","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":"684ae842ab0b5c92fe04d9ff6376dd3bc7f0f043cd1896df9a447fbc46f92c30","cross_cats_sorted":["cs.AI","cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AR","submitted_at":"2026-07-24T15:15:10Z","title_canon_sha256":"93258552a569658f0706794427d8131052b122c01520156f38722472a714bb3c"},"schema_version":"1.0","source":{"id":"2607.22389","kind":"arxiv","version":1}},"canonical_sha256":"e259a57bce77b16a30f04902f895580695b9ea56527424bce3d79b8b401a1069","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e259a57bce77b16a30f04902f895580695b9ea56527424bce3d79b8b401a1069","first_computed_at":"2026-07-27T01:21:18.272595Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-27T01:21:18.272595Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pp29nRL84HCPi1LHkM/SPkgdNtWO8PIUswgwXSO2ZnhKL4OyRxp1b7QX5OzMslnbF5DFPytrN2xN8SO7tdHuBA==","signature_status":"signed_v1","signed_at":"2026-07-27T01:21:18.273470Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.22389","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6e81ae811937887a27d9c8caed82f1aec6fe103bd699d759c66d5552cb5c9154","sha256:1f72d6f2f985186b80edda5638bc9d3cf8e88be3a6150d4a14a1548197901158"],"state_sha256":"0f6fa3b7016391764c2e3d479453e3f791146237bde0e5cc67e1cfa2ea3fe6d7"}