{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:PGB47YRAAZH2KNKONE5GDT2N73","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":"3dbbd3b47df0bd06f8a23742e4e65562323b6836bb59fa05f1081bf28d42ae7d","cross_cats_sorted":["math.OC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2025-09-03T03:14:58Z","title_canon_sha256":"567d14b3887261622834b7acb54f6f785b8cea9c5176d3941a03d2fd22a51d51"},"schema_version":"1.0","source":{"id":"2509.02970","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2509.02970","created_at":"2026-06-01T01:02:20Z"},{"alias_kind":"arxiv_version","alias_value":"2509.02970v3","created_at":"2026-06-01T01:02:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2509.02970","created_at":"2026-06-01T01:02:20Z"},{"alias_kind":"pith_short_12","alias_value":"PGB47YRAAZH2","created_at":"2026-06-01T01:02:20Z"},{"alias_kind":"pith_short_16","alias_value":"PGB47YRAAZH2KNKO","created_at":"2026-06-01T01:02:20Z"},{"alias_kind":"pith_short_8","alias_value":"PGB47YRA","created_at":"2026-06-01T01:02:20Z"}],"graph_snapshots":[{"event_id":"sha256:e6b7c2c1392bd6a9d43a74b9554d815615062b2dfaf2880eddbb88f7f003b8da","target":"graph","created_at":"2026-06-01T01:02:20Z","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/2509.02970/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Partial participation is essential for communication-efficient federated learning at scale, yet existing Byzantine-robust methods typically assume full client participation. In the partial participation setting, a majority of the sampled clients may be Byzantine, once Byzantine clients dominate, existing methods break down immediately. We introduce delayed momentum aggregation, a principle where the central server aggregates cached momentum from non-sampled clients along with fresh momentum from sampled clients. This principle ensures Byzantine clients remain a minority from the server's persp","authors_text":"Kaoru Otsuka, Makoto Yamada, Yuki Takezawa","cross_cats":["math.OC"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2025-09-03T03:14:58Z","title":"Delayed Momentum Aggregation: Communication-efficient Byzantine-robust Federated Learning with Partial Participation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2509.02970","kind":"arxiv","version":3},"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:b400a47b4d2d4c4b7267fe501398603cf23ed5bb541c38060ae55a4781da4ce5","target":"record","created_at":"2026-06-01T01:02:20Z","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":"3dbbd3b47df0bd06f8a23742e4e65562323b6836bb59fa05f1081bf28d42ae7d","cross_cats_sorted":["math.OC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2025-09-03T03:14:58Z","title_canon_sha256":"567d14b3887261622834b7acb54f6f785b8cea9c5176d3941a03d2fd22a51d51"},"schema_version":"1.0","source":{"id":"2509.02970","kind":"arxiv","version":3}},"canonical_sha256":"7983cfe220064fa5354e693a61cf4dfed756307e8cdcc93283a3b5f878996c38","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7983cfe220064fa5354e693a61cf4dfed756307e8cdcc93283a3b5f878996c38","first_computed_at":"2026-06-01T01:02:20.211732Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-01T01:02:20.211732Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ymTsHwFqA4sjurw0TfB5k0o0WDVh77EQUwCP7W/uEvr3uitoxANzj+UdeCw8ACrnhGEGG7bbSC5QIte1lR5QBg==","signature_status":"signed_v1","signed_at":"2026-06-01T01:02:20.212762Z","signed_message":"canonical_sha256_bytes"},"source_id":"2509.02970","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b400a47b4d2d4c4b7267fe501398603cf23ed5bb541c38060ae55a4781da4ce5","sha256:e6b7c2c1392bd6a9d43a74b9554d815615062b2dfaf2880eddbb88f7f003b8da"],"state_sha256":"6b04e7ca867e03a8abeae85b1ca7a8359eb16886b3d3c71626f67bcf2cb10020"}