{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:LTYDHCQP44HDTJGTYZGXF2CPQ4","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":"f2d3063b0a5f329b6a8917d936528b4bca2066cb195dbcdcd9c3acbd502bb5ac","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2025-09-12T16:58:17Z","title_canon_sha256":"bcafed616852da6d7360fdb40c8078f40f0c7e9d484be5c03dc00a6fc807c977"},"schema_version":"1.0","source":{"id":"2509.10406","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2509.10406","created_at":"2026-07-01T01:17:41Z"},{"alias_kind":"arxiv_version","alias_value":"2509.10406v4","created_at":"2026-07-01T01:17:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2509.10406","created_at":"2026-07-01T01:17:41Z"},{"alias_kind":"pith_short_12","alias_value":"LTYDHCQP44HD","created_at":"2026-07-01T01:17:41Z"},{"alias_kind":"pith_short_16","alias_value":"LTYDHCQP44HDTJGT","created_at":"2026-07-01T01:17:41Z"},{"alias_kind":"pith_short_8","alias_value":"LTYDHCQP","created_at":"2026-07-01T01:17:41Z"}],"graph_snapshots":[{"event_id":"sha256:778b2ecbf733f0f64050b655a88903f300803bb0900b36f6355bd4a0713e834c","target":"graph","created_at":"2026-07-01T01:17:41Z","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/2509.10406/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Pretraining transformers on long sequences (entire code repositories, collections of related documents) is bottlenecked by quadratic attention costs. We present Multipole Semantic Attention (MuSe), which accelerates 64k-context pretraining by 36% while matching baseline loss, requiring no architectural changes. MuSe clusters queries and keys separately in representation space. This yields query-specific summaries that substantially outperform spatial blocking at matched sparsity, while also enabling drop-in compatibility with existing pretrained models; we validate on Llama 3.1-8B and 3.2-1B w","authors_text":"Kristian Kersting, Rupert Mitchell","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2025-09-12T16:58:17Z","title":"Multipole Semantic Attention: A Fast Approximation of Softmax Attention for Pretraining"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2509.10406","kind":"arxiv","version":4},"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:c14d5e00ce9917f16b7f43f6651ef15ffab6abd26c8b87df368ef945257803b4","target":"record","created_at":"2026-07-01T01:17:41Z","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":"f2d3063b0a5f329b6a8917d936528b4bca2066cb195dbcdcd9c3acbd502bb5ac","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2025-09-12T16:58:17Z","title_canon_sha256":"bcafed616852da6d7360fdb40c8078f40f0c7e9d484be5c03dc00a6fc807c977"},"schema_version":"1.0","source":{"id":"2509.10406","kind":"arxiv","version":4}},"canonical_sha256":"5cf0338a0fe70e39a4d3c64d72e84f872c2e58d1cfcbd12f12662095bea7568a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5cf0338a0fe70e39a4d3c64d72e84f872c2e58d1cfcbd12f12662095bea7568a","first_computed_at":"2026-07-01T01:17:41.358451Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-01T01:17:41.358451Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lACleOOKqzTwOC+3h1sIN8zC2pEKgzciKr+vRj0Paj7rzizjtoutNq33LvoekjKfutsd523wW2PrVqfm/I69Bg==","signature_status":"signed_v1","signed_at":"2026-07-01T01:17:41.358954Z","signed_message":"canonical_sha256_bytes"},"source_id":"2509.10406","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c14d5e00ce9917f16b7f43f6651ef15ffab6abd26c8b87df368ef945257803b4","sha256:778b2ecbf733f0f64050b655a88903f300803bb0900b36f6355bd4a0713e834c"],"state_sha256":"7b5e87c812e83881619bf2fde043c13499882d2f9abca0beb0f935db42719f8e"}