{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:766WFO6DC5EMAW57KWMRHEJE2Y","short_pith_number":"pith:766WFO6D","canonical_record":{"source":{"id":"1508.02765","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2015-08-11T22:29:23Z","cross_cats_sorted":["math.IT","stat.ML"],"title_canon_sha256":"a9f5f7e32208dbd49914cc6fd12f20ca13f9b9c4b72db8635e374674f16054c1","abstract_canon_sha256":"3207e81420048c56809d1cb79b31ae55314c3b0b6d61fbae625f1d62fae137d3"},"schema_version":"1.0"},"canonical_sha256":"ffbd62bbc31748c05bbf5599139124d6319c1f7b91755a8fcb90edb90f0aed95","source":{"kind":"arxiv","id":"1508.02765","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1508.02765","created_at":"2026-05-18T01:27:22Z"},{"alias_kind":"arxiv_version","alias_value":"1508.02765v2","created_at":"2026-05-18T01:27:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1508.02765","created_at":"2026-05-18T01:27:22Z"},{"alias_kind":"pith_short_12","alias_value":"766WFO6DC5EM","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_16","alias_value":"766WFO6DC5EMAW57","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_8","alias_value":"766WFO6D","created_at":"2026-05-18T12:29:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:766WFO6DC5EMAW57KWMRHEJE2Y","target":"record","payload":{"canonical_record":{"source":{"id":"1508.02765","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2015-08-11T22:29:23Z","cross_cats_sorted":["math.IT","stat.ML"],"title_canon_sha256":"a9f5f7e32208dbd49914cc6fd12f20ca13f9b9c4b72db8635e374674f16054c1","abstract_canon_sha256":"3207e81420048c56809d1cb79b31ae55314c3b0b6d61fbae625f1d62fae137d3"},"schema_version":"1.0"},"canonical_sha256":"ffbd62bbc31748c05bbf5599139124d6319c1f7b91755a8fcb90edb90f0aed95","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:27:22.885108Z","signature_b64":"5zke5u6pQEWcUpQ/oOry+8mSsxNNV/4k7wHL+M/55b1ntlncqXWNQ0SUxIn19t2pEL/1hpY7dnfaTiIHSNP7BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ffbd62bbc31748c05bbf5599139124d6319c1f7b91755a8fcb90edb90f0aed95","last_reissued_at":"2026-05-18T01:27:22.884727Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:27:22.884727Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1508.02765","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:27:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yFCPu1uajhrqIfSdnnNcZuvK+t1FgYKYHDtQkXSjokWDo7oKmVaVpUM9mip7k30Rir8VAjgDc5B6zkvv85XBDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-22T03:51:29.513232Z"},"content_sha256":"b19bc15cdfca4c124e3fe4de4442f7ae54b238f0cd99951b41b16a84b5825cfd","schema_version":"1.0","event_id":"sha256:b19bc15cdfca4c124e3fe4de4442f7ae54b238f0cd99951b41b16a84b5825cfd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:766WFO6DC5EMAW57KWMRHEJE2Y","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Are Slepian-Wolf Rates Necessary for Distributed Parameter Estimation?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT","stat.ML"],"primary_cat":"cs.IT","authors_text":"Lifeng Lai, Mostafa El Gamal","submitted_at":"2015-08-11T22:29:23Z","abstract_excerpt":"We consider a distributed parameter estimation problem, in which multiple terminals send messages related to their local observations using limited rates to a fusion center who will obtain an estimate of a parameter related to observations of all terminals. It is well known that if the transmission rates are in the Slepian-Wolf region, the fusion center can fully recover all observations and hence can construct an estimator having the same performance as that of the centralized case. One natural question is whether Slepian-Wolf rates are necessary to achieve the same estimation performance as "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1508.02765","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"2026-05-18T01:27:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ycGeUKONlV/iNeA/OTOdIFWApoyVRzsm6b7OFupYasKjijXIOtHw9vVux965dLTXzPQ3G7leEu2n6gUGKiy/CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-22T03:51:29.513882Z"},"content_sha256":"cfec57b2e6adb4e33015ec0f80e462be43912faa6fe7cc25235a07e2e628368c","schema_version":"1.0","event_id":"sha256:cfec57b2e6adb4e33015ec0f80e462be43912faa6fe7cc25235a07e2e628368c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/766WFO6DC5EMAW57KWMRHEJE2Y/bundle.json","state_url":"https://pith.science/pith/766WFO6DC5EMAW57KWMRHEJE2Y/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/766WFO6DC5EMAW57KWMRHEJE2Y/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":"2026-05-22T03:51:29Z","links":{"resolver":"https://pith.science/pith/766WFO6DC5EMAW57KWMRHEJE2Y","bundle":"https://pith.science/pith/766WFO6DC5EMAW57KWMRHEJE2Y/bundle.json","state":"https://pith.science/pith/766WFO6DC5EMAW57KWMRHEJE2Y/state.json","well_known_bundle":"https://pith.science/.well-known/pith/766WFO6DC5EMAW57KWMRHEJE2Y/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:766WFO6DC5EMAW57KWMRHEJE2Y","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":"3207e81420048c56809d1cb79b31ae55314c3b0b6d61fbae625f1d62fae137d3","cross_cats_sorted":["math.IT","stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2015-08-11T22:29:23Z","title_canon_sha256":"a9f5f7e32208dbd49914cc6fd12f20ca13f9b9c4b72db8635e374674f16054c1"},"schema_version":"1.0","source":{"id":"1508.02765","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1508.02765","created_at":"2026-05-18T01:27:22Z"},{"alias_kind":"arxiv_version","alias_value":"1508.02765v2","created_at":"2026-05-18T01:27:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1508.02765","created_at":"2026-05-18T01:27:22Z"},{"alias_kind":"pith_short_12","alias_value":"766WFO6DC5EM","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_16","alias_value":"766WFO6DC5EMAW57","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_8","alias_value":"766WFO6D","created_at":"2026-05-18T12:29:07Z"}],"graph_snapshots":[{"event_id":"sha256:cfec57b2e6adb4e33015ec0f80e462be43912faa6fe7cc25235a07e2e628368c","target":"graph","created_at":"2026-05-18T01:27:22Z","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"},"paper":{"abstract_excerpt":"We consider a distributed parameter estimation problem, in which multiple terminals send messages related to their local observations using limited rates to a fusion center who will obtain an estimate of a parameter related to observations of all terminals. It is well known that if the transmission rates are in the Slepian-Wolf region, the fusion center can fully recover all observations and hence can construct an estimator having the same performance as that of the centralized case. One natural question is whether Slepian-Wolf rates are necessary to achieve the same estimation performance as ","authors_text":"Lifeng Lai, Mostafa El Gamal","cross_cats":["math.IT","stat.ML"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2015-08-11T22:29:23Z","title":"Are Slepian-Wolf Rates Necessary for Distributed Parameter Estimation?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1508.02765","kind":"arxiv","version":2},"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:b19bc15cdfca4c124e3fe4de4442f7ae54b238f0cd99951b41b16a84b5825cfd","target":"record","created_at":"2026-05-18T01:27:22Z","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":"3207e81420048c56809d1cb79b31ae55314c3b0b6d61fbae625f1d62fae137d3","cross_cats_sorted":["math.IT","stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2015-08-11T22:29:23Z","title_canon_sha256":"a9f5f7e32208dbd49914cc6fd12f20ca13f9b9c4b72db8635e374674f16054c1"},"schema_version":"1.0","source":{"id":"1508.02765","kind":"arxiv","version":2}},"canonical_sha256":"ffbd62bbc31748c05bbf5599139124d6319c1f7b91755a8fcb90edb90f0aed95","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ffbd62bbc31748c05bbf5599139124d6319c1f7b91755a8fcb90edb90f0aed95","first_computed_at":"2026-05-18T01:27:22.884727Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:27:22.884727Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5zke5u6pQEWcUpQ/oOry+8mSsxNNV/4k7wHL+M/55b1ntlncqXWNQ0SUxIn19t2pEL/1hpY7dnfaTiIHSNP7BQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:27:22.885108Z","signed_message":"canonical_sha256_bytes"},"source_id":"1508.02765","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b19bc15cdfca4c124e3fe4de4442f7ae54b238f0cd99951b41b16a84b5825cfd","sha256:cfec57b2e6adb4e33015ec0f80e462be43912faa6fe7cc25235a07e2e628368c"],"state_sha256":"93608edadb9b589cd2727f8dcea8d41bf240c6d2cf9b79882a6b708432d0263e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"y4aeDjjDrkwEj4K84gTzmm1oxRyGh2ko7qQRDUVhOFT5lqyZfidtz14dIrlZW1lOY92iiXb3HWQ1F1QqA+FXBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-22T03:51:29.517404Z","bundle_sha256":"3e7aaffa2e6177bae935df05425ba4003f4e21bd5fb6fc602cfe40efa73951bf"}}