{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:OGEOZ6P66L76TIEELTKAPG3MGK","short_pith_number":"pith:OGEOZ6P6","canonical_record":{"source":{"id":"1306.1751","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2013-06-07T15:37:22Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"350e6f475dcf3a843c37281c172de3a6bc6545fc7909754710f46a83ab09b57b","abstract_canon_sha256":"d40f5ca51970073548d4ecdd835fbbab236cf94de666ac6188aaf6207fedd0d4"},"schema_version":"1.0"},"canonical_sha256":"7188ecf9fef2ffe9a0845cd4079b6c32bf57743faf4160a40588aad9ce0a3dfd","source":{"kind":"arxiv","id":"1306.1751","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.1751","created_at":"2026-05-18T03:12:22Z"},{"alias_kind":"arxiv_version","alias_value":"1306.1751v4","created_at":"2026-05-18T03:12:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.1751","created_at":"2026-05-18T03:12:22Z"},{"alias_kind":"pith_short_12","alias_value":"OGEOZ6P66L76","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_16","alias_value":"OGEOZ6P66L76TIEE","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_8","alias_value":"OGEOZ6P6","created_at":"2026-05-18T12:27:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:OGEOZ6P66L76TIEELTKAPG3MGK","target":"record","payload":{"canonical_record":{"source":{"id":"1306.1751","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2013-06-07T15:37:22Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"350e6f475dcf3a843c37281c172de3a6bc6545fc7909754710f46a83ab09b57b","abstract_canon_sha256":"d40f5ca51970073548d4ecdd835fbbab236cf94de666ac6188aaf6207fedd0d4"},"schema_version":"1.0"},"canonical_sha256":"7188ecf9fef2ffe9a0845cd4079b6c32bf57743faf4160a40588aad9ce0a3dfd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:12:22.022018Z","signature_b64":"L7slYC+5D13TIV+bK1TrO0Tq6FNAs3l8qbKsPz7BkXWqcSNPPQ+TuUkpMCqf+OSvM9TY9/o/UPeFpdbxCbslAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7188ecf9fef2ffe9a0845cd4079b6c32bf57743faf4160a40588aad9ce0a3dfd","last_reissued_at":"2026-05-18T03:12:22.021210Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:12:22.021210Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1306.1751","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:12:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"25JgVHleEQ2GWxZVq+84rATk5Q2UZ6oCzYJ12819gzDBjmw2ZP2wUGEUd1HVmTmaQktq1CjvOsX2nq0YA/8lBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T10:37:10.399997Z"},"content_sha256":"c0557fcc039ea2271ea5513fe0961289b96ffae447d5b9193e6715fb19f4b0a7","schema_version":"1.0","event_id":"sha256:c0557fcc039ea2271ea5513fe0961289b96ffae447d5b9193e6715fb19f4b0a7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:OGEOZ6P66L76TIEELTKAPG3MGK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Toward the Performance vs. Feedback Tradeoff for the Two-User MISO Broadcast Channel","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Jinyuan Chen, Petros Elia","submitted_at":"2013-06-07T15:37:22Z","abstract_excerpt":"For the two-user MISO broadcast channel with imperfect and delayed channel state information at the transmitter (CSIT), the work explores the tradeoff between performance on the one hand, and CSIT timeliness and accuracy on the other hand. The work considers a broad setting where communication takes place in the presence of a random fading process, and in the presence of a feedback process that, at any point in time, may provide CSIT estimates - of some arbitrary accuracy - for any past, current or future channel realization. This feedback quality may fluctuate in time across all ranges of CSI"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.1751","kind":"arxiv","version":4},"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":"2026-05-18T03:12:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yaWWYdg3ZWgqrEqHgEJ/BzBaRlxWTheA/HxFXb9AbHPpJpec6Vm+wSeSA2hziSmU6bR4Jj/BcKrEEVGnubDzCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T10:37:10.400686Z"},"content_sha256":"3f8535d9aa7e12d653ffbb27b5881790847219d1f9711d1d459fefd0b2a10018","schema_version":"1.0","event_id":"sha256:3f8535d9aa7e12d653ffbb27b5881790847219d1f9711d1d459fefd0b2a10018"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OGEOZ6P66L76TIEELTKAPG3MGK/bundle.json","state_url":"https://pith.science/pith/OGEOZ6P66L76TIEELTKAPG3MGK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OGEOZ6P66L76TIEELTKAPG3MGK/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":"2026-05-26T10:37:10Z","links":{"resolver":"https://pith.science/pith/OGEOZ6P66L76TIEELTKAPG3MGK","bundle":"https://pith.science/pith/OGEOZ6P66L76TIEELTKAPG3MGK/bundle.json","state":"https://pith.science/pith/OGEOZ6P66L76TIEELTKAPG3MGK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OGEOZ6P66L76TIEELTKAPG3MGK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:OGEOZ6P66L76TIEELTKAPG3MGK","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":"d40f5ca51970073548d4ecdd835fbbab236cf94de666ac6188aaf6207fedd0d4","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2013-06-07T15:37:22Z","title_canon_sha256":"350e6f475dcf3a843c37281c172de3a6bc6545fc7909754710f46a83ab09b57b"},"schema_version":"1.0","source":{"id":"1306.1751","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.1751","created_at":"2026-05-18T03:12:22Z"},{"alias_kind":"arxiv_version","alias_value":"1306.1751v4","created_at":"2026-05-18T03:12:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.1751","created_at":"2026-05-18T03:12:22Z"},{"alias_kind":"pith_short_12","alias_value":"OGEOZ6P66L76","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_16","alias_value":"OGEOZ6P66L76TIEE","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_8","alias_value":"OGEOZ6P6","created_at":"2026-05-18T12:27:54Z"}],"graph_snapshots":[{"event_id":"sha256:3f8535d9aa7e12d653ffbb27b5881790847219d1f9711d1d459fefd0b2a10018","target":"graph","created_at":"2026-05-18T03:12:22Z","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":"For the two-user MISO broadcast channel with imperfect and delayed channel state information at the transmitter (CSIT), the work explores the tradeoff between performance on the one hand, and CSIT timeliness and accuracy on the other hand. The work considers a broad setting where communication takes place in the presence of a random fading process, and in the presence of a feedback process that, at any point in time, may provide CSIT estimates - of some arbitrary accuracy - for any past, current or future channel realization. This feedback quality may fluctuate in time across all ranges of CSI","authors_text":"Jinyuan Chen, Petros Elia","cross_cats":["math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2013-06-07T15:37:22Z","title":"Toward the Performance vs. Feedback Tradeoff for the Two-User MISO Broadcast Channel"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.1751","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:c0557fcc039ea2271ea5513fe0961289b96ffae447d5b9193e6715fb19f4b0a7","target":"record","created_at":"2026-05-18T03:12:22Z","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":"d40f5ca51970073548d4ecdd835fbbab236cf94de666ac6188aaf6207fedd0d4","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2013-06-07T15:37:22Z","title_canon_sha256":"350e6f475dcf3a843c37281c172de3a6bc6545fc7909754710f46a83ab09b57b"},"schema_version":"1.0","source":{"id":"1306.1751","kind":"arxiv","version":4}},"canonical_sha256":"7188ecf9fef2ffe9a0845cd4079b6c32bf57743faf4160a40588aad9ce0a3dfd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7188ecf9fef2ffe9a0845cd4079b6c32bf57743faf4160a40588aad9ce0a3dfd","first_computed_at":"2026-05-18T03:12:22.021210Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:12:22.021210Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"L7slYC+5D13TIV+bK1TrO0Tq6FNAs3l8qbKsPz7BkXWqcSNPPQ+TuUkpMCqf+OSvM9TY9/o/UPeFpdbxCbslAA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:12:22.022018Z","signed_message":"canonical_sha256_bytes"},"source_id":"1306.1751","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c0557fcc039ea2271ea5513fe0961289b96ffae447d5b9193e6715fb19f4b0a7","sha256:3f8535d9aa7e12d653ffbb27b5881790847219d1f9711d1d459fefd0b2a10018"],"state_sha256":"783f46fb8ca6bdd84cdd3c254bc57d4fb9c7711c7eb64d7fef6e364872c09d1a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0Se2i9gAQmhdlKkY2Wyl4h5fJSAHXxZKyBodJFBRj7eScJ5dfDZ1bIjnBEC9LaISCwr/X1/Xw7FFtV/vKXZFCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T10:37:10.404309Z","bundle_sha256":"1a6c049f24af3fdc34f0f6d04c4c293f51a9d0c6859e0eff1eeafca0c143c29f"}}