{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:PPZMHLPATI7S74T2BEXNEMJHNQ","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":"738fd805d063d472414ac9930c69d8df33e27a22a8c7d5fb1227ba518487fba7","cross_cats_sorted":["cs.AI"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2026-06-22T05:39:12Z","title_canon_sha256":"0e02c3cdcdd1d79e09c32c2720ac3a6f999d179e16f93dfd8490d8e6f7441751"},"schema_version":"1.0","source":{"id":"2606.22874","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.22874","created_at":"2026-06-23T03:14:02Z"},{"alias_kind":"arxiv_version","alias_value":"2606.22874v1","created_at":"2026-06-23T03:14:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.22874","created_at":"2026-06-23T03:14:02Z"},{"alias_kind":"pith_short_12","alias_value":"PPZMHLPATI7S","created_at":"2026-06-23T03:14:02Z"},{"alias_kind":"pith_short_16","alias_value":"PPZMHLPATI7S74T2","created_at":"2026-06-23T03:14:02Z"},{"alias_kind":"pith_short_8","alias_value":"PPZMHLPA","created_at":"2026-06-23T03:14:02Z"}],"graph_snapshots":[{"event_id":"sha256:973fec20d2a3faa98daa3e632eefac75d4dd648875f9e0f83064b33ee7fe915a","target":"graph","created_at":"2026-06-23T03:14:02Z","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/2606.22874/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Long contexts have become standard in pretrained LLMs, yet they remain expensive to run: prefill compute grows quadratically with sequence length, and every decode step re-reads a key-value cache that grows linearly with it. Sparse attention cuts these costs by attending only to a relevant subset of past tokens, but selecting that subset is itself expensive. We present SpotAttention, a lightweight selector that attaches to a frozen pretrained transformer and learns by KL distillation to estimate its attention distribution. The selector picks the top-K keys each query attends to, and because it","authors_text":"Huzama Ahmad, Se-Young Yun","cross_cats":["cs.AI"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2026-06-22T05:39:12Z","title":"SpotAttention: Plug-In Block-Sparse Routing for Pretrained Long-Context Transformers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.22874","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":"sha256:4779f5413b12e91ec231d22ffbb9d18cb96572705941404a61760cda6358b614","target":"record","created_at":"2026-06-23T03:14:02Z","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":"738fd805d063d472414ac9930c69d8df33e27a22a8c7d5fb1227ba518487fba7","cross_cats_sorted":["cs.AI"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2026-06-22T05:39:12Z","title_canon_sha256":"0e02c3cdcdd1d79e09c32c2720ac3a6f999d179e16f93dfd8490d8e6f7441751"},"schema_version":"1.0","source":{"id":"2606.22874","kind":"arxiv","version":1}},"canonical_sha256":"7bf2c3ade09a3f2ff27a092ed231276c0ae6ec20a90e252cd898d6d1476f45a1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7bf2c3ade09a3f2ff27a092ed231276c0ae6ec20a90e252cd898d6d1476f45a1","first_computed_at":"2026-06-23T03:14:02.764592Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-23T03:14:02.764592Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QggLrF2MrodE4z2GwwKLRHKNa5PARiwFFEX9naC7lW6n9SKXtR4ROrL3KStIAj0h4AJZlPgZbuBZOrjinjkUDQ==","signature_status":"signed_v1","signed_at":"2026-06-23T03:14:02.764978Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.22874","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4779f5413b12e91ec231d22ffbb9d18cb96572705941404a61760cda6358b614","sha256:973fec20d2a3faa98daa3e632eefac75d4dd648875f9e0f83064b33ee7fe915a"],"state_sha256":"e28e94095e30ef9738acd9c1614f9a4ac2b91b57bad8b88e42203a81d9528cd1"}