{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:7CUCZJQEN4BVMFBNNGYQVJ6X6J","short_pith_number":"pith:7CUCZJQE","canonical_record":{"source":{"id":"2403.01023","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"cs.IT","submitted_at":"2024-03-01T22:53:57Z","cross_cats_sorted":["cs.LG","math.IT"],"title_canon_sha256":"9c6cc14a293f21c87b685918736cfbb84a6d50860615468b91cfb177f1282f46","abstract_canon_sha256":"806e4502d1826df4f1de51f67f49246047ae6a4855e93eff2dbdebae6b8de9dc"},"schema_version":"1.0"},"canonical_sha256":"f8a82ca6046f0356142d69b10aa7d7f24e9a218cf00bf595f968a3ca772667bc","source":{"kind":"arxiv","id":"2403.01023","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2403.01023","created_at":"2026-07-05T07:51:15Z"},{"alias_kind":"arxiv_version","alias_value":"2403.01023v1","created_at":"2026-07-05T07:51:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2403.01023","created_at":"2026-07-05T07:51:15Z"},{"alias_kind":"pith_short_12","alias_value":"7CUCZJQEN4BV","created_at":"2026-07-05T07:51:15Z"},{"alias_kind":"pith_short_16","alias_value":"7CUCZJQEN4BVMFBN","created_at":"2026-07-05T07:51:15Z"},{"alias_kind":"pith_short_8","alias_value":"7CUCZJQE","created_at":"2026-07-05T07:51:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:7CUCZJQEN4BVMFBNNGYQVJ6X6J","target":"record","payload":{"canonical_record":{"source":{"id":"2403.01023","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"cs.IT","submitted_at":"2024-03-01T22:53:57Z","cross_cats_sorted":["cs.LG","math.IT"],"title_canon_sha256":"9c6cc14a293f21c87b685918736cfbb84a6d50860615468b91cfb177f1282f46","abstract_canon_sha256":"806e4502d1826df4f1de51f67f49246047ae6a4855e93eff2dbdebae6b8de9dc"},"schema_version":"1.0"},"canonical_sha256":"f8a82ca6046f0356142d69b10aa7d7f24e9a218cf00bf595f968a3ca772667bc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:51:15.240514Z","signature_b64":"rqn41X+rBhqnrLpjEHJCQxQP96PvEBn6Ihi19XHfJxiU/t02eUVHhCqnfZgEsLj9/W5YE+9YbKGVlA/f8TvAAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f8a82ca6046f0356142d69b10aa7d7f24e9a218cf00bf595f968a3ca772667bc","last_reissued_at":"2026-07-05T07:51:15.240151Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:51:15.240151Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2403.01023","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":"2026-07-05T07:51:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"STRe0GymAA/Yl5nXjjXTmvh8zI0nmUSKhNHYeJCwlhwSiO8xzIhs/UhPU34fY+rc4FMUxcT9x/ZKeCs9mz+6Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T20:54:23.390941Z"},"content_sha256":"671d4f4b8034255b390fab839b0b5e53cdafe741bc75992ef2660a2279b19570","schema_version":"1.0","event_id":"sha256:671d4f4b8034255b390fab839b0b5e53cdafe741bc75992ef2660a2279b19570"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:7CUCZJQEN4BVMFBNNGYQVJ6X6J","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Federated Learning via Lattice Joint Source-Channel Coding","license":"http://creativecommons.org/publicdomain/zero/1.0/","headline":"","cross_cats":["cs.LG","math.IT"],"primary_cat":"cs.IT","authors_text":"Lav R. Varshney, Seyed Mohammad Azimi-Abarghouyi","submitted_at":"2024-03-01T22:53:57Z","abstract_excerpt":"This paper introduces a universal federated learning framework that enables over-the-air computation via digital communications, using a new joint source-channel coding scheme. Without relying on channel state information at devices, this scheme employs lattice codes to both quantize model parameters and exploit interference from the devices. A novel two-layer receiver structure at the server is designed to reliably decode an integer combination of the quantized model parameters as a lattice point for the purpose of aggregation. Numerical experiments validate the effectiveness of the proposed "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2403.01023","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/2403.01023/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":"2026-07-05T07:51:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ipk0uQ007A18llPu2TrHKGHPx2sS1Z6qvBJGdM+xpZQhknSnFclE4sd0ybFDfwthXXXH4zqetxgvack0WFzPBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T20:54:23.391588Z"},"content_sha256":"0ca695503e79063915a46450947ccb5a7f8f91a6078ebb2f8ad7286438f3bb0d","schema_version":"1.0","event_id":"sha256:0ca695503e79063915a46450947ccb5a7f8f91a6078ebb2f8ad7286438f3bb0d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7CUCZJQEN4BVMFBNNGYQVJ6X6J/bundle.json","state_url":"https://pith.science/pith/7CUCZJQEN4BVMFBNNGYQVJ6X6J/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7CUCZJQEN4BVMFBNNGYQVJ6X6J/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":"2026-08-18T20:54:23Z","links":{"resolver":"https://pith.science/pith/7CUCZJQEN4BVMFBNNGYQVJ6X6J","bundle":"https://pith.science/pith/7CUCZJQEN4BVMFBNNGYQVJ6X6J/bundle.json","state":"https://pith.science/pith/7CUCZJQEN4BVMFBNNGYQVJ6X6J/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7CUCZJQEN4BVMFBNNGYQVJ6X6J/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:7CUCZJQEN4BVMFBNNGYQVJ6X6J","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":"806e4502d1826df4f1de51f67f49246047ae6a4855e93eff2dbdebae6b8de9dc","cross_cats_sorted":["cs.LG","math.IT"],"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"cs.IT","submitted_at":"2024-03-01T22:53:57Z","title_canon_sha256":"9c6cc14a293f21c87b685918736cfbb84a6d50860615468b91cfb177f1282f46"},"schema_version":"1.0","source":{"id":"2403.01023","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2403.01023","created_at":"2026-07-05T07:51:15Z"},{"alias_kind":"arxiv_version","alias_value":"2403.01023v1","created_at":"2026-07-05T07:51:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2403.01023","created_at":"2026-07-05T07:51:15Z"},{"alias_kind":"pith_short_12","alias_value":"7CUCZJQEN4BV","created_at":"2026-07-05T07:51:15Z"},{"alias_kind":"pith_short_16","alias_value":"7CUCZJQEN4BVMFBN","created_at":"2026-07-05T07:51:15Z"},{"alias_kind":"pith_short_8","alias_value":"7CUCZJQE","created_at":"2026-07-05T07:51:15Z"}],"graph_snapshots":[{"event_id":"sha256:0ca695503e79063915a46450947ccb5a7f8f91a6078ebb2f8ad7286438f3bb0d","target":"graph","created_at":"2026-07-05T07:51:15Z","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/2403.01023/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This paper introduces a universal federated learning framework that enables over-the-air computation via digital communications, using a new joint source-channel coding scheme. Without relying on channel state information at devices, this scheme employs lattice codes to both quantize model parameters and exploit interference from the devices. A novel two-layer receiver structure at the server is designed to reliably decode an integer combination of the quantized model parameters as a lattice point for the purpose of aggregation. Numerical experiments validate the effectiveness of the proposed ","authors_text":"Lav R. Varshney, Seyed Mohammad Azimi-Abarghouyi","cross_cats":["cs.LG","math.IT"],"headline":"","license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"cs.IT","submitted_at":"2024-03-01T22:53:57Z","title":"Federated Learning via Lattice Joint Source-Channel Coding"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2403.01023","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":"sha256:671d4f4b8034255b390fab839b0b5e53cdafe741bc75992ef2660a2279b19570","target":"record","created_at":"2026-07-05T07:51:15Z","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":"806e4502d1826df4f1de51f67f49246047ae6a4855e93eff2dbdebae6b8de9dc","cross_cats_sorted":["cs.LG","math.IT"],"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"cs.IT","submitted_at":"2024-03-01T22:53:57Z","title_canon_sha256":"9c6cc14a293f21c87b685918736cfbb84a6d50860615468b91cfb177f1282f46"},"schema_version":"1.0","source":{"id":"2403.01023","kind":"arxiv","version":1}},"canonical_sha256":"f8a82ca6046f0356142d69b10aa7d7f24e9a218cf00bf595f968a3ca772667bc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f8a82ca6046f0356142d69b10aa7d7f24e9a218cf00bf595f968a3ca772667bc","first_computed_at":"2026-07-05T07:51:15.240151Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:51:15.240151Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rqn41X+rBhqnrLpjEHJCQxQP96PvEBn6Ihi19XHfJxiU/t02eUVHhCqnfZgEsLj9/W5YE+9YbKGVlA/f8TvAAA==","signature_status":"signed_v1","signed_at":"2026-07-05T07:51:15.240514Z","signed_message":"canonical_sha256_bytes"},"source_id":"2403.01023","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:671d4f4b8034255b390fab839b0b5e53cdafe741bc75992ef2660a2279b19570","sha256:0ca695503e79063915a46450947ccb5a7f8f91a6078ebb2f8ad7286438f3bb0d"],"state_sha256":"c4af0a61616abaf2de65c3efebd310b583306eb290c34c49375f016008d125d0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uftBY/RGqTM+utwOprlmY3CHqxfDAxl+QiT41BS+FJ4+Io8KrxoSjzVN9exaIMtesSu7mOHHIdoAQ2RRyRUHAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-18T20:54:23.397419Z","bundle_sha256":"302ea3194584d6938816665662a6a089546c4afa6e7b37086e8b57b4f7fe5383"}}