{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:M4SRPATHSTJ72GF35EO4ZTTKYO","short_pith_number":"pith:M4SRPATH","canonical_record":{"source":{"id":"2605.30574","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CL","submitted_at":"2026-05-28T21:07:41Z","cross_cats_sorted":[],"title_canon_sha256":"633ed600b613ba6215d8c284d7ad37d65191ee4d9ed641018c5b8159f4d06888","abstract_canon_sha256":"6741ad425c8cf39f9ae537c58676e59fac9b1affeecd48ab34592d8c16b00c69"},"schema_version":"1.0"},"canonical_sha256":"672517826794d3fd18bbe91dccce6ac3852d9191bc77d7ab950f7bc33c073cb2","source":{"kind":"arxiv","id":"2605.30574","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.30574","created_at":"2026-06-01T01:03:01Z"},{"alias_kind":"arxiv_version","alias_value":"2605.30574v1","created_at":"2026-06-01T01:03:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.30574","created_at":"2026-06-01T01:03:01Z"},{"alias_kind":"pith_short_12","alias_value":"M4SRPATHSTJ7","created_at":"2026-06-01T01:03:01Z"},{"alias_kind":"pith_short_16","alias_value":"M4SRPATHSTJ72GF3","created_at":"2026-06-01T01:03:01Z"},{"alias_kind":"pith_short_8","alias_value":"M4SRPATH","created_at":"2026-06-01T01:03:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:M4SRPATHSTJ72GF35EO4ZTTKYO","target":"record","payload":{"canonical_record":{"source":{"id":"2605.30574","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CL","submitted_at":"2026-05-28T21:07:41Z","cross_cats_sorted":[],"title_canon_sha256":"633ed600b613ba6215d8c284d7ad37d65191ee4d9ed641018c5b8159f4d06888","abstract_canon_sha256":"6741ad425c8cf39f9ae537c58676e59fac9b1affeecd48ab34592d8c16b00c69"},"schema_version":"1.0"},"canonical_sha256":"672517826794d3fd18bbe91dccce6ac3852d9191bc77d7ab950f7bc33c073cb2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-01T01:03:01.856402Z","signature_b64":"x6/OTgnJlLHh8YgD9lx4GTbiWTz2oA/P61fSq4PPbK2v4xpCcJdoOijWpgmOvkGEoWMRXnd3D6pCr2eOAHnlBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"672517826794d3fd18bbe91dccce6ac3852d9191bc77d7ab950f7bc33c073cb2","last_reissued_at":"2026-06-01T01:03:01.855609Z","signature_status":"signed_v1","first_computed_at":"2026-06-01T01:03:01.855609Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2605.30574","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":"2026-06-01T01:03:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ka8xNkmpf3K8G0B9ZraVTenj1PmWxWI7cKVDh+hFilQBnXV3mgxtl9obEAs2UdVfrRtFfGW6U6GbmSPciUHRBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T23:36:23.609411Z"},"content_sha256":"7da1f051efd193e56a0304c702c6ffe89c23180653b3cb038ee44633a1ba1b50","schema_version":"1.0","event_id":"sha256:7da1f051efd193e56a0304c702c6ffe89c23180653b3cb038ee44633a1ba1b50"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:M4SRPATHSTJ72GF35EO4ZTTKYO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Probing the Prompt KV Cache: Where It Becomes Dispensable","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CL","authors_text":"Disha Makhija, Manoj Ghuhan Arivazhagan, Rashmi Gangadharaiah, Vinayshekhar Bannihatti Kumar","submitted_at":"2026-05-28T21:07:41Z","abstract_excerpt":"Prior KV cache compression schemes empirically demonstrate that the prompt cache is partially redundant during decoding, dropping or summarising entries with little accuracy loss. We ask when and what kind of redundancy: at which layers, after how many decoding steps, and in what form can the prompt span KV cache be replaced without breaking the task. A controlled splice intervention swept over layer cutoff and decoding steps shows this redundancy is about form (chat template scaffolding) rather than content. Replacing the upper layer prompt span KV cache with KV cache from a chat template sca"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.30574","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/2605.30574/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":"2026-06-01T01:03:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PIrnEKsTYypFoZC9L8AVDnyu47oGLs9HBTT44wMHiMYSLFJ6qAOCYkuJsIYE6sM8xR8LgVq6z2tC9KkTjjNXDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T23:36:23.610370Z"},"content_sha256":"a36878fdff5a974b4c0c530290aa3cea62d914b3a470c44bc1fd4a3875b05d1a","schema_version":"1.0","event_id":"sha256:a36878fdff5a974b4c0c530290aa3cea62d914b3a470c44bc1fd4a3875b05d1a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/M4SRPATHSTJ72GF35EO4ZTTKYO/bundle.json","state_url":"https://pith.science/pith/M4SRPATHSTJ72GF35EO4ZTTKYO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/M4SRPATHSTJ72GF35EO4ZTTKYO/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":"2026-06-10T23:36:23Z","links":{"resolver":"https://pith.science/pith/M4SRPATHSTJ72GF35EO4ZTTKYO","bundle":"https://pith.science/pith/M4SRPATHSTJ72GF35EO4ZTTKYO/bundle.json","state":"https://pith.science/pith/M4SRPATHSTJ72GF35EO4ZTTKYO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/M4SRPATHSTJ72GF35EO4ZTTKYO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:M4SRPATHSTJ72GF35EO4ZTTKYO","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":"6741ad425c8cf39f9ae537c58676e59fac9b1affeecd48ab34592d8c16b00c69","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CL","submitted_at":"2026-05-28T21:07:41Z","title_canon_sha256":"633ed600b613ba6215d8c284d7ad37d65191ee4d9ed641018c5b8159f4d06888"},"schema_version":"1.0","source":{"id":"2605.30574","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.30574","created_at":"2026-06-01T01:03:01Z"},{"alias_kind":"arxiv_version","alias_value":"2605.30574v1","created_at":"2026-06-01T01:03:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.30574","created_at":"2026-06-01T01:03:01Z"},{"alias_kind":"pith_short_12","alias_value":"M4SRPATHSTJ7","created_at":"2026-06-01T01:03:01Z"},{"alias_kind":"pith_short_16","alias_value":"M4SRPATHSTJ72GF3","created_at":"2026-06-01T01:03:01Z"},{"alias_kind":"pith_short_8","alias_value":"M4SRPATH","created_at":"2026-06-01T01:03:01Z"}],"graph_snapshots":[{"event_id":"sha256:a36878fdff5a974b4c0c530290aa3cea62d914b3a470c44bc1fd4a3875b05d1a","target":"graph","created_at":"2026-06-01T01:03:01Z","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/2605.30574/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Prior KV cache compression schemes empirically demonstrate that the prompt cache is partially redundant during decoding, dropping or summarising entries with little accuracy loss. We ask when and what kind of redundancy: at which layers, after how many decoding steps, and in what form can the prompt span KV cache be replaced without breaking the task. A controlled splice intervention swept over layer cutoff and decoding steps shows this redundancy is about form (chat template scaffolding) rather than content. Replacing the upper layer prompt span KV cache with KV cache from a chat template sca","authors_text":"Disha Makhija, Manoj Ghuhan Arivazhagan, Rashmi Gangadharaiah, Vinayshekhar Bannihatti Kumar","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CL","submitted_at":"2026-05-28T21:07:41Z","title":"Probing the Prompt KV Cache: Where It Becomes Dispensable"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.30574","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":"sha256:7da1f051efd193e56a0304c702c6ffe89c23180653b3cb038ee44633a1ba1b50","target":"record","created_at":"2026-06-01T01:03:01Z","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":"6741ad425c8cf39f9ae537c58676e59fac9b1affeecd48ab34592d8c16b00c69","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CL","submitted_at":"2026-05-28T21:07:41Z","title_canon_sha256":"633ed600b613ba6215d8c284d7ad37d65191ee4d9ed641018c5b8159f4d06888"},"schema_version":"1.0","source":{"id":"2605.30574","kind":"arxiv","version":1}},"canonical_sha256":"672517826794d3fd18bbe91dccce6ac3852d9191bc77d7ab950f7bc33c073cb2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"672517826794d3fd18bbe91dccce6ac3852d9191bc77d7ab950f7bc33c073cb2","first_computed_at":"2026-06-01T01:03:01.855609Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-01T01:03:01.855609Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"x6/OTgnJlLHh8YgD9lx4GTbiWTz2oA/P61fSq4PPbK2v4xpCcJdoOijWpgmOvkGEoWMRXnd3D6pCr2eOAHnlBA==","signature_status":"signed_v1","signed_at":"2026-06-01T01:03:01.856402Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.30574","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7da1f051efd193e56a0304c702c6ffe89c23180653b3cb038ee44633a1ba1b50","sha256:a36878fdff5a974b4c0c530290aa3cea62d914b3a470c44bc1fd4a3875b05d1a"],"state_sha256":"fa5910f0f853068befab87831d50d8a3a97cbd853ef18758830e7701cf572cf5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6Gc9bMKLxzCERmvBNRvqgUkNkC/pVvuTum06GI+eGKnAeKzdAPhe80X4/oh3z0w0dyfq4CR871LUv1XGQ6TdBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T23:36:23.614676Z","bundle_sha256":"806a701218229341de54c94fee64c565096948663760047b1014108035d1994f"}}