{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:AR6BG46VNOU5PTQCTM42IPYZX3","short_pith_number":"pith:AR6BG46V","canonical_record":{"source":{"id":"1306.2701","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2013-06-12T03:17:21Z","cross_cats_sorted":["cs.MM","math.IT"],"title_canon_sha256":"c1c6ea566e3987d520e57e73ad9846fa010b6969cd92669636625c9cdd89202a","abstract_canon_sha256":"a42fcdb9209442eec28a79bf30e8514ed218d8e2799783bd586ce24acdfcaa95"},"schema_version":"1.0"},"canonical_sha256":"047c1373d56ba9d7ce029b39a43f19bee9c8d04ad7d5fe61e381c4386a6e7eb9","source":{"kind":"arxiv","id":"1306.2701","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.2701","created_at":"2026-05-18T00:58:17Z"},{"alias_kind":"arxiv_version","alias_value":"1306.2701v3","created_at":"2026-05-18T00:58:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.2701","created_at":"2026-05-18T00:58:17Z"},{"alias_kind":"pith_short_12","alias_value":"AR6BG46VNOU5","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_16","alias_value":"AR6BG46VNOU5PTQC","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_8","alias_value":"AR6BG46V","created_at":"2026-05-18T12:27:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:AR6BG46VNOU5PTQCTM42IPYZX3","target":"record","payload":{"canonical_record":{"source":{"id":"1306.2701","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2013-06-12T03:17:21Z","cross_cats_sorted":["cs.MM","math.IT"],"title_canon_sha256":"c1c6ea566e3987d520e57e73ad9846fa010b6969cd92669636625c9cdd89202a","abstract_canon_sha256":"a42fcdb9209442eec28a79bf30e8514ed218d8e2799783bd586ce24acdfcaa95"},"schema_version":"1.0"},"canonical_sha256":"047c1373d56ba9d7ce029b39a43f19bee9c8d04ad7d5fe61e381c4386a6e7eb9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:58:17.090295Z","signature_b64":"mXi3FE6tA9fVr5XNt2k+EdDCYNgSQ3/H5gq4HScxwEHqVcEjbBfLlGu8WincwBsO3sMIT3tlbx3G+TBl0cV5Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"047c1373d56ba9d7ce029b39a43f19bee9c8d04ad7d5fe61e381c4386a6e7eb9","last_reissued_at":"2026-05-18T00:58:17.089491Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:58:17.089491Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1306.2701","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:58:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nfQYMF2SP6M5VHqB2PTFgjG5T9eQqMezTTUn2CQb07nWU/Jdh/mR9fEtTE1VRWEP66d6fupCi4WJqPtUUqTNCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T05:06:57.642941Z"},"content_sha256":"57cd8b24abe58a721c0d4ae7e9afb1393bed0e0d74bb66c241650c4c976159c9","schema_version":"1.0","event_id":"sha256:57cd8b24abe58a721c0d4ae7e9afb1393bed0e0d74bb66c241650c4c976159c9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:AR6BG46VNOU5PTQCTM42IPYZX3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Cache-Enabled Opportunistic Cooperative MIMO for Video Streaming in Wireless Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.MM","math.IT"],"primary_cat":"cs.IT","authors_text":"An Liu, Vincent Lau","submitted_at":"2013-06-12T03:17:21Z","abstract_excerpt":"We propose a cache-enabled opportunistic cooperative MIMO (CoMP) framework for wireless video streaming. By caching a portion of the video files at the relays (RS) using a novel MDS-coded random cache scheme, the base station (BS) and RSs opportunistically employ CoMP to achieve spatial multiplexing gain without expensive payload backhaul. We study a two timescale joint optimization of power and cache control to support real-time video streaming. The cache control is to create more CoMP opportunities and is adaptive to the long-term popularity of the video files. The power control is to guaran"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.2701","kind":"arxiv","version":3},"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":"2026-05-18T00:58:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"m0PzpH+UpBaa8+QDhh7VNcwlssbKjtHOqy8q8lmXAKhUHBcXGjMyZAPXBrCzM4wM4SEP5zr8kK2Jcfggtz83DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T05:06:57.643281Z"},"content_sha256":"e7d0d8142e108d3029d124690b26030f37a837a22c6d95aad9c3572721430b34","schema_version":"1.0","event_id":"sha256:e7d0d8142e108d3029d124690b26030f37a837a22c6d95aad9c3572721430b34"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AR6BG46VNOU5PTQCTM42IPYZX3/bundle.json","state_url":"https://pith.science/pith/AR6BG46VNOU5PTQCTM42IPYZX3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AR6BG46VNOU5PTQCTM42IPYZX3/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":"2026-07-05T05:06:57Z","links":{"resolver":"https://pith.science/pith/AR6BG46VNOU5PTQCTM42IPYZX3","bundle":"https://pith.science/pith/AR6BG46VNOU5PTQCTM42IPYZX3/bundle.json","state":"https://pith.science/pith/AR6BG46VNOU5PTQCTM42IPYZX3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AR6BG46VNOU5PTQCTM42IPYZX3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:AR6BG46VNOU5PTQCTM42IPYZX3","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":"a42fcdb9209442eec28a79bf30e8514ed218d8e2799783bd586ce24acdfcaa95","cross_cats_sorted":["cs.MM","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2013-06-12T03:17:21Z","title_canon_sha256":"c1c6ea566e3987d520e57e73ad9846fa010b6969cd92669636625c9cdd89202a"},"schema_version":"1.0","source":{"id":"1306.2701","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.2701","created_at":"2026-05-18T00:58:17Z"},{"alias_kind":"arxiv_version","alias_value":"1306.2701v3","created_at":"2026-05-18T00:58:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.2701","created_at":"2026-05-18T00:58:17Z"},{"alias_kind":"pith_short_12","alias_value":"AR6BG46VNOU5","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_16","alias_value":"AR6BG46VNOU5PTQC","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_8","alias_value":"AR6BG46V","created_at":"2026-05-18T12:27:38Z"}],"graph_snapshots":[{"event_id":"sha256:e7d0d8142e108d3029d124690b26030f37a837a22c6d95aad9c3572721430b34","target":"graph","created_at":"2026-05-18T00:58:17Z","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 propose a cache-enabled opportunistic cooperative MIMO (CoMP) framework for wireless video streaming. By caching a portion of the video files at the relays (RS) using a novel MDS-coded random cache scheme, the base station (BS) and RSs opportunistically employ CoMP to achieve spatial multiplexing gain without expensive payload backhaul. We study a two timescale joint optimization of power and cache control to support real-time video streaming. The cache control is to create more CoMP opportunities and is adaptive to the long-term popularity of the video files. The power control is to guaran","authors_text":"An Liu, Vincent Lau","cross_cats":["cs.MM","math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2013-06-12T03:17:21Z","title":"Cache-Enabled Opportunistic Cooperative MIMO for Video Streaming in Wireless Systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.2701","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":"sha256:57cd8b24abe58a721c0d4ae7e9afb1393bed0e0d74bb66c241650c4c976159c9","target":"record","created_at":"2026-05-18T00:58:17Z","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":"a42fcdb9209442eec28a79bf30e8514ed218d8e2799783bd586ce24acdfcaa95","cross_cats_sorted":["cs.MM","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2013-06-12T03:17:21Z","title_canon_sha256":"c1c6ea566e3987d520e57e73ad9846fa010b6969cd92669636625c9cdd89202a"},"schema_version":"1.0","source":{"id":"1306.2701","kind":"arxiv","version":3}},"canonical_sha256":"047c1373d56ba9d7ce029b39a43f19bee9c8d04ad7d5fe61e381c4386a6e7eb9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"047c1373d56ba9d7ce029b39a43f19bee9c8d04ad7d5fe61e381c4386a6e7eb9","first_computed_at":"2026-05-18T00:58:17.089491Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:58:17.089491Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mXi3FE6tA9fVr5XNt2k+EdDCYNgSQ3/H5gq4HScxwEHqVcEjbBfLlGu8WincwBsO3sMIT3tlbx3G+TBl0cV5Aw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:58:17.090295Z","signed_message":"canonical_sha256_bytes"},"source_id":"1306.2701","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:57cd8b24abe58a721c0d4ae7e9afb1393bed0e0d74bb66c241650c4c976159c9","sha256:e7d0d8142e108d3029d124690b26030f37a837a22c6d95aad9c3572721430b34"],"state_sha256":"7a3e35b40abb0d00edbc43d69bc2c86c88a86463f50ae1a62d17506c839f5fbc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"F0/0kEBM+IpUb2U8YfrJufeTWSdFZ/7kcUwz0BFcwuHnj8MkMcDNL7Wo2Q2qHnPB4lUC2D/WoywBxCg/ahPTBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-05T05:06:57.645221Z","bundle_sha256":"0d617a5f3cb0605cd6e832b9c8694c38dfc63ae5a8a2a93afd2ead7925966103"}}