{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:JG4JPZIXNXR63MZPYXDOD7NX73","short_pith_number":"pith:JG4JPZIX","canonical_record":{"source":{"id":"2605.22850","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2026-05-16T16:48:46Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"b1cfa914a02b81c5002973139001994d02bbafd80541fdf8e9428265046a6add","abstract_canon_sha256":"505a43dd82ee253ec31831e37008ebfea3f73373c84e10f4ea2574c6a4e34770"},"schema_version":"1.0"},"canonical_sha256":"49b897e5176de3edb32fc5c6e1fdb7fef2e8f84792bc851e47972b050faeecec","source":{"kind":"arxiv","id":"2605.22850","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.22850","created_at":"2026-05-25T00:00:59Z"},{"alias_kind":"arxiv_version","alias_value":"2605.22850v1","created_at":"2026-05-25T00:00:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.22850","created_at":"2026-05-25T00:00:59Z"},{"alias_kind":"pith_short_12","alias_value":"JG4JPZIXNXR6","created_at":"2026-05-25T00:00:59Z"},{"alias_kind":"pith_short_16","alias_value":"JG4JPZIXNXR63MZP","created_at":"2026-05-25T00:00:59Z"},{"alias_kind":"pith_short_8","alias_value":"JG4JPZIX","created_at":"2026-05-25T00:00:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:JG4JPZIXNXR63MZPYXDOD7NX73","target":"record","payload":{"canonical_record":{"source":{"id":"2605.22850","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2026-05-16T16:48:46Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"b1cfa914a02b81c5002973139001994d02bbafd80541fdf8e9428265046a6add","abstract_canon_sha256":"505a43dd82ee253ec31831e37008ebfea3f73373c84e10f4ea2574c6a4e34770"},"schema_version":"1.0"},"canonical_sha256":"49b897e5176de3edb32fc5c6e1fdb7fef2e8f84792bc851e47972b050faeecec","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-25T00:00:59.171993Z","signature_b64":"tJw553nUuUShG1ru5fZMxfIXEKf3sBbu6c/kyaulQnZ43Nss7QiWMo41+DLAvTqGcK5OgBydg8DfobsDLOiKAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"49b897e5176de3edb32fc5c6e1fdb7fef2e8f84792bc851e47972b050faeecec","last_reissued_at":"2026-05-25T00:00:59.171168Z","signature_status":"signed_v1","first_computed_at":"2026-05-25T00:00:59.171168Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2605.22850","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-25T00:00:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KETFu2r6WEJfzepC08cIMsHr0rLDJEevHV6psOkIeHyYCdt5I+D59uXS+W9yxz603D+/IUzjPtoKP7h9WMRLAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T21:03:18.242146Z"},"content_sha256":"262e225382ca652adf479e6bbda65d9c9065c95558f5a0163fb94d539c4dc1fe","schema_version":"1.0","event_id":"sha256:262e225382ca652adf479e6bbda65d9c9065c95558f5a0163fb94d539c4dc1fe"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:JG4JPZIXNXR63MZPYXDOD7NX73","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"ObjectCache: Layerwise Object-Storage Retrieval for KV Cache Reuse","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.AI"],"primary_cat":"cs.DC","authors_text":"Aditya Dhakal, Dejan Milojicic, Gustavo Alonso, Yunming Xiao, Yu Zhu","submitted_at":"2026-05-16T16:48:46Z","abstract_excerpt":"Prefix KV caching has become a key mechanism in LLM serving: it reduces time to first token (TTFT) by avoiding redundant computation across requests that share a prefix (i.e., the system prompt). However, the accumulated KV cache is often larger than what GPU memory and local DRAM can hold. To preserve latency, current systems keep the KV cache in remote DRAM pools, increasing serving-cluster size and cost. In this paper, we explore a different approach: storing the KV cache in S3-compatible object storage so that capacity is no longer the constraint, while minimizing the impact on TTFT. We pr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.22850","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2605.22850/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-25T00:00:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"x4vTUnwvF+6KxfE+mJboqGJOeNyVfJmOX7/9pEiocbvgUQpVv32VBwS4A8wOH5pwqeBXllsBsjIY9EYiZ9IhCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T21:03:18.242823Z"},"content_sha256":"c11536454e67f25c3d9815ad885b441eb61fc8a08add95ecb11efe17df76806f","schema_version":"1.0","event_id":"sha256:c11536454e67f25c3d9815ad885b441eb61fc8a08add95ecb11efe17df76806f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JG4JPZIXNXR63MZPYXDOD7NX73/bundle.json","state_url":"https://pith.science/pith/JG4JPZIXNXR63MZPYXDOD7NX73/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JG4JPZIXNXR63MZPYXDOD7NX73/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-25T21:03:18Z","links":{"resolver":"https://pith.science/pith/JG4JPZIXNXR63MZPYXDOD7NX73","bundle":"https://pith.science/pith/JG4JPZIXNXR63MZPYXDOD7NX73/bundle.json","state":"https://pith.science/pith/JG4JPZIXNXR63MZPYXDOD7NX73/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JG4JPZIXNXR63MZPYXDOD7NX73/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:JG4JPZIXNXR63MZPYXDOD7NX73","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":"505a43dd82ee253ec31831e37008ebfea3f73373c84e10f4ea2574c6a4e34770","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2026-05-16T16:48:46Z","title_canon_sha256":"b1cfa914a02b81c5002973139001994d02bbafd80541fdf8e9428265046a6add"},"schema_version":"1.0","source":{"id":"2605.22850","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.22850","created_at":"2026-05-25T00:00:59Z"},{"alias_kind":"arxiv_version","alias_value":"2605.22850v1","created_at":"2026-05-25T00:00:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.22850","created_at":"2026-05-25T00:00:59Z"},{"alias_kind":"pith_short_12","alias_value":"JG4JPZIXNXR6","created_at":"2026-05-25T00:00:59Z"},{"alias_kind":"pith_short_16","alias_value":"JG4JPZIXNXR63MZP","created_at":"2026-05-25T00:00:59Z"},{"alias_kind":"pith_short_8","alias_value":"JG4JPZIX","created_at":"2026-05-25T00:00:59Z"}],"graph_snapshots":[{"event_id":"sha256:c11536454e67f25c3d9815ad885b441eb61fc8a08add95ecb11efe17df76806f","target":"graph","created_at":"2026-05-25T00:00:59Z","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/2605.22850/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Prefix KV caching has become a key mechanism in LLM serving: it reduces time to first token (TTFT) by avoiding redundant computation across requests that share a prefix (i.e., the system prompt). However, the accumulated KV cache is often larger than what GPU memory and local DRAM can hold. To preserve latency, current systems keep the KV cache in remote DRAM pools, increasing serving-cluster size and cost. In this paper, we explore a different approach: storing the KV cache in S3-compatible object storage so that capacity is no longer the constraint, while minimizing the impact on TTFT. We pr","authors_text":"Aditya Dhakal, Dejan Milojicic, Gustavo Alonso, Yunming Xiao, Yu Zhu","cross_cats":["cs.AI"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2026-05-16T16:48:46Z","title":"ObjectCache: Layerwise Object-Storage Retrieval for KV Cache Reuse"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.22850","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":"sha256:262e225382ca652adf479e6bbda65d9c9065c95558f5a0163fb94d539c4dc1fe","target":"record","created_at":"2026-05-25T00:00:59Z","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":"505a43dd82ee253ec31831e37008ebfea3f73373c84e10f4ea2574c6a4e34770","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2026-05-16T16:48:46Z","title_canon_sha256":"b1cfa914a02b81c5002973139001994d02bbafd80541fdf8e9428265046a6add"},"schema_version":"1.0","source":{"id":"2605.22850","kind":"arxiv","version":1}},"canonical_sha256":"49b897e5176de3edb32fc5c6e1fdb7fef2e8f84792bc851e47972b050faeecec","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"49b897e5176de3edb32fc5c6e1fdb7fef2e8f84792bc851e47972b050faeecec","first_computed_at":"2026-05-25T00:00:59.171168Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-25T00:00:59.171168Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tJw553nUuUShG1ru5fZMxfIXEKf3sBbu6c/kyaulQnZ43Nss7QiWMo41+DLAvTqGcK5OgBydg8DfobsDLOiKAA==","signature_status":"signed_v1","signed_at":"2026-05-25T00:00:59.171993Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.22850","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:262e225382ca652adf479e6bbda65d9c9065c95558f5a0163fb94d539c4dc1fe","sha256:c11536454e67f25c3d9815ad885b441eb61fc8a08add95ecb11efe17df76806f"],"state_sha256":"9c6c6046e0d839af2813657e26e1937c3091ebdc1af4d44f2d02857a84d6710d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"imswJtOpPrHB5XqLBg58MpmxcSwcJNRlFe8TvwiAKYsOvru/1ZQxpTrPkFJRZiVhpgJ1s6HnCZE3reFUFQHNBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T21:03:18.245894Z","bundle_sha256":"857647b35a805c3bf2688362fc4ca09e0df94ba98f0d394a2e1ef61049457408"}}