{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:4PSCXFX5UULKPBHS2EQSFNZNYX","short_pith_number":"pith:4PSCXFX5","canonical_record":{"source":{"id":"1009.2528","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2010-09-13T21:48:22Z","cross_cats_sorted":["cs.SY","math.IT"],"title_canon_sha256":"8ee9f476d20d9c62b5ef69cbdfa1a5ac22937bbbee31f549ce2947f21d67b750","abstract_canon_sha256":"7c6bee141194f74e8a742c783a0774bb9362cb86c77ab93213dad3c88258f0e4"},"schema_version":"1.0"},"canonical_sha256":"e3e42b96fda516a784f2d12122b72dc5c7574911e3d8a1a0bcd36d98fd59a888","source":{"kind":"arxiv","id":"1009.2528","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.2528","created_at":"2026-05-18T04:40:56Z"},{"alias_kind":"arxiv_version","alias_value":"1009.2528v1","created_at":"2026-05-18T04:40:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.2528","created_at":"2026-05-18T04:40:56Z"},{"alias_kind":"pith_short_12","alias_value":"4PSCXFX5UULK","created_at":"2026-05-18T12:26:04Z"},{"alias_kind":"pith_short_16","alias_value":"4PSCXFX5UULKPBHS","created_at":"2026-05-18T12:26:04Z"},{"alias_kind":"pith_short_8","alias_value":"4PSCXFX5","created_at":"2026-05-18T12:26:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:4PSCXFX5UULKPBHS2EQSFNZNYX","target":"record","payload":{"canonical_record":{"source":{"id":"1009.2528","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2010-09-13T21:48:22Z","cross_cats_sorted":["cs.SY","math.IT"],"title_canon_sha256":"8ee9f476d20d9c62b5ef69cbdfa1a5ac22937bbbee31f549ce2947f21d67b750","abstract_canon_sha256":"7c6bee141194f74e8a742c783a0774bb9362cb86c77ab93213dad3c88258f0e4"},"schema_version":"1.0"},"canonical_sha256":"e3e42b96fda516a784f2d12122b72dc5c7574911e3d8a1a0bcd36d98fd59a888","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:40:56.911790Z","signature_b64":"XPICPNu3Dl/7eaJVhCu6DIWX5tIa3S9p1rJdvW8oiednYx52RjVvjsiJEajPJ23JhGhjbsUIbg6DH1gvQUoUBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e3e42b96fda516a784f2d12122b72dc5c7574911e3d8a1a0bcd36d98fd59a888","last_reissued_at":"2026-05-18T04:40:56.911004Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:40:56.911004Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1009.2528","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":"2026-05-18T04:40:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BjO+Yu4bXl7i0jDWuAnQcX3bu5Z7aW4WvQGx3wtDZ0Ya9pmx7q8CCxSbyD8QaavLGu1pbNG4WGWx5KUvPEb8BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T10:07:16.369667Z"},"content_sha256":"fb45a59ad3274a0af6509c4ca4251834439d3630f1395a869f69b3556279520f","schema_version":"1.0","event_id":"sha256:fb45a59ad3274a0af6509c4ca4251834439d3630f1395a869f69b3556279520f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:4PSCXFX5UULKPBHS2EQSFNZNYX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Is Witsenhausen's counterexample a relevant toy?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.SY","math.IT"],"primary_cat":"cs.IT","authors_text":"Anant Sahai, Pulkit Grover","submitted_at":"2010-09-13T21:48:22Z","abstract_excerpt":"This paper answers a question raised by Doyle on the relevance of the Witsenhausen counterexample as a toy decentralized control problem. The question has two sides, the first of which focuses on the lack of an external channel in the counterexample. Using existing results, we argue that the core difficulty in the counterexample is retained even in the presence of such a channel. The second side questions the LQG formulation of the counterexample. We consider alternative formulations and show that the understanding developed for the LQG case guides the investigation for these other cases as we"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.2528","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":""},"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":"2026-05-18T04:40:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DTdBaxTCgnqGj4ip1Vp5QyOI0l70yFAjHQWqQV7ZiKdlu2iQ9ZmKGxbeqpCBTy8NgMTdTSmWRhXNa2FNWZClCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T10:07:16.370171Z"},"content_sha256":"3b17a6e9a7a4f0e5939b9b2aabf726513b321689d6172de0034342072eb727d9","schema_version":"1.0","event_id":"sha256:3b17a6e9a7a4f0e5939b9b2aabf726513b321689d6172de0034342072eb727d9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4PSCXFX5UULKPBHS2EQSFNZNYX/bundle.json","state_url":"https://pith.science/pith/4PSCXFX5UULKPBHS2EQSFNZNYX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4PSCXFX5UULKPBHS2EQSFNZNYX/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":"2026-05-26T10:07:16Z","links":{"resolver":"https://pith.science/pith/4PSCXFX5UULKPBHS2EQSFNZNYX","bundle":"https://pith.science/pith/4PSCXFX5UULKPBHS2EQSFNZNYX/bundle.json","state":"https://pith.science/pith/4PSCXFX5UULKPBHS2EQSFNZNYX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4PSCXFX5UULKPBHS2EQSFNZNYX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:4PSCXFX5UULKPBHS2EQSFNZNYX","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":"7c6bee141194f74e8a742c783a0774bb9362cb86c77ab93213dad3c88258f0e4","cross_cats_sorted":["cs.SY","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2010-09-13T21:48:22Z","title_canon_sha256":"8ee9f476d20d9c62b5ef69cbdfa1a5ac22937bbbee31f549ce2947f21d67b750"},"schema_version":"1.0","source":{"id":"1009.2528","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.2528","created_at":"2026-05-18T04:40:56Z"},{"alias_kind":"arxiv_version","alias_value":"1009.2528v1","created_at":"2026-05-18T04:40:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.2528","created_at":"2026-05-18T04:40:56Z"},{"alias_kind":"pith_short_12","alias_value":"4PSCXFX5UULK","created_at":"2026-05-18T12:26:04Z"},{"alias_kind":"pith_short_16","alias_value":"4PSCXFX5UULKPBHS","created_at":"2026-05-18T12:26:04Z"},{"alias_kind":"pith_short_8","alias_value":"4PSCXFX5","created_at":"2026-05-18T12:26:04Z"}],"graph_snapshots":[{"event_id":"sha256:3b17a6e9a7a4f0e5939b9b2aabf726513b321689d6172de0034342072eb727d9","target":"graph","created_at":"2026-05-18T04:40:56Z","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":"This paper answers a question raised by Doyle on the relevance of the Witsenhausen counterexample as a toy decentralized control problem. The question has two sides, the first of which focuses on the lack of an external channel in the counterexample. Using existing results, we argue that the core difficulty in the counterexample is retained even in the presence of such a channel. The second side questions the LQG formulation of the counterexample. We consider alternative formulations and show that the understanding developed for the LQG case guides the investigation for these other cases as we","authors_text":"Anant Sahai, Pulkit Grover","cross_cats":["cs.SY","math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2010-09-13T21:48:22Z","title":"Is Witsenhausen's counterexample a relevant toy?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.2528","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:fb45a59ad3274a0af6509c4ca4251834439d3630f1395a869f69b3556279520f","target":"record","created_at":"2026-05-18T04:40:56Z","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":"7c6bee141194f74e8a742c783a0774bb9362cb86c77ab93213dad3c88258f0e4","cross_cats_sorted":["cs.SY","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2010-09-13T21:48:22Z","title_canon_sha256":"8ee9f476d20d9c62b5ef69cbdfa1a5ac22937bbbee31f549ce2947f21d67b750"},"schema_version":"1.0","source":{"id":"1009.2528","kind":"arxiv","version":1}},"canonical_sha256":"e3e42b96fda516a784f2d12122b72dc5c7574911e3d8a1a0bcd36d98fd59a888","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e3e42b96fda516a784f2d12122b72dc5c7574911e3d8a1a0bcd36d98fd59a888","first_computed_at":"2026-05-18T04:40:56.911004Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:40:56.911004Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XPICPNu3Dl/7eaJVhCu6DIWX5tIa3S9p1rJdvW8oiednYx52RjVvjsiJEajPJ23JhGhjbsUIbg6DH1gvQUoUBg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:40:56.911790Z","signed_message":"canonical_sha256_bytes"},"source_id":"1009.2528","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fb45a59ad3274a0af6509c4ca4251834439d3630f1395a869f69b3556279520f","sha256:3b17a6e9a7a4f0e5939b9b2aabf726513b321689d6172de0034342072eb727d9"],"state_sha256":"fd67ba8556a6fd1f42ada0836adc3603976c52d6aa706a465778da1a46f71386"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"r0i2VZELm3WH0wEGc1ghhFuAyP8cRD0q+k5w7t81pNsXw1WjQgRkKz38Y9mX0b1ECu3EUbCQugVTUPGD4wkiCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T10:07:16.373605Z","bundle_sha256":"b759f12345cbf4bc47e15063f25124247076792c53b5e32e0a4ae53077bcc72c"}}