{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:XINRRLT2JVY2F3KPGBUQ2DOQ6A","short_pith_number":"pith:XINRRLT2","canonical_record":{"source":{"id":"1812.06713","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MM","submitted_at":"2018-12-17T11:36:52Z","cross_cats_sorted":["cs.NI"],"title_canon_sha256":"c333eb63950d5c171bf512f8caf7137148164ebcde1821ea9f5674da1fa31008","abstract_canon_sha256":"baa32ae4b4ce4f211f457fc588b53d03f08c10b091bbf31fa4addaaf1e199f4e"},"schema_version":"1.0"},"canonical_sha256":"ba1b18ae7a4d71a2ed4f30690d0dd0f01e5c8a765b73b744792b40f617fb8e50","source":{"kind":"arxiv","id":"1812.06713","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.06713","created_at":"2026-05-17T23:57:19Z"},{"alias_kind":"arxiv_version","alias_value":"1812.06713v2","created_at":"2026-05-17T23:57:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.06713","created_at":"2026-05-17T23:57:19Z"},{"alias_kind":"pith_short_12","alias_value":"XINRRLT2JVY2","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_16","alias_value":"XINRRLT2JVY2F3KP","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_8","alias_value":"XINRRLT2","created_at":"2026-05-18T12:33:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:XINRRLT2JVY2F3KPGBUQ2DOQ6A","target":"record","payload":{"canonical_record":{"source":{"id":"1812.06713","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MM","submitted_at":"2018-12-17T11:36:52Z","cross_cats_sorted":["cs.NI"],"title_canon_sha256":"c333eb63950d5c171bf512f8caf7137148164ebcde1821ea9f5674da1fa31008","abstract_canon_sha256":"baa32ae4b4ce4f211f457fc588b53d03f08c10b091bbf31fa4addaaf1e199f4e"},"schema_version":"1.0"},"canonical_sha256":"ba1b18ae7a4d71a2ed4f30690d0dd0f01e5c8a765b73b744792b40f617fb8e50","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:57:19.018041Z","signature_b64":"7CSHcQR7qrBCiduU2j/PPlfi4GU9Uufj2V8OLaNWXFkb8LJ8A7du5KZfC9U4Og2WDxv3RY+3nIa4qxp2nuTECg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ba1b18ae7a4d71a2ed4f30690d0dd0f01e5c8a765b73b744792b40f617fb8e50","last_reissued_at":"2026-05-17T23:57:19.017383Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:57:19.017383Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1812.06713","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":"2026-05-17T23:57:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eHn4rq9CtzE7Ko1l7WT7lTmO1IgJe1QL9ndCr8VbroH/yMTN4H0nEiRpEL2AYPzibnmKgdXEaaDOJT9zT5+PAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T07:36:20.847216Z"},"content_sha256":"a006d433c7ea809647ef89648a524603b4a9c9e1cd0a5ac91639e66cda10f110","schema_version":"1.0","event_id":"sha256:a006d433c7ea809647ef89648a524603b4a9c9e1cd0a5ac91639e66cda10f110"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:XINRRLT2JVY2F3KPGBUQ2DOQ6A","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Receiver-driven Video Multicast over NOMA Systems in Heterogeneous Environments","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.NI"],"primary_cat":"cs.MM","authors_text":"Chang Wen Chen, Feng Wu, Hancheng Lu, Xiaoda Jiang","submitted_at":"2018-12-17T11:36:52Z","abstract_excerpt":"Non-orthogonal multiple access (NOMA) has shown potential for scalable multicast of video data. However, one key drawback for NOMA-based video multicast is the limited number of layers allowed by the embedded successive interference cancellation algorithm, failing to meet satisfaction of heterogeneous receivers. We propose a novel receiver-driven superposed video multicast (Supcast) scheme by integrating Softcast, an analog-like transmission scheme, into the NOMA-based system to achieve high bandwidth efficiency as well as gradual decoding quality proportional to channel conditions at receiver"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.06713","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":"2026-05-17T23:57:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FnWHFNoB/k1KUKQu6bLVJzlZ/xZ57zCsymCoe93qgcuLltm2VML9BdKWGC2mWxkWYntZhbRR793vzZrp2FPDDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T07:36:20.847826Z"},"content_sha256":"b0cd73c63f6c3202e5cc9486a9ea146351aba27022f21d35d8f7d3ac580575ec","schema_version":"1.0","event_id":"sha256:b0cd73c63f6c3202e5cc9486a9ea146351aba27022f21d35d8f7d3ac580575ec"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XINRRLT2JVY2F3KPGBUQ2DOQ6A/bundle.json","state_url":"https://pith.science/pith/XINRRLT2JVY2F3KPGBUQ2DOQ6A/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XINRRLT2JVY2F3KPGBUQ2DOQ6A/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":"2026-06-07T07:36:20Z","links":{"resolver":"https://pith.science/pith/XINRRLT2JVY2F3KPGBUQ2DOQ6A","bundle":"https://pith.science/pith/XINRRLT2JVY2F3KPGBUQ2DOQ6A/bundle.json","state":"https://pith.science/pith/XINRRLT2JVY2F3KPGBUQ2DOQ6A/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XINRRLT2JVY2F3KPGBUQ2DOQ6A/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:XINRRLT2JVY2F3KPGBUQ2DOQ6A","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":"baa32ae4b4ce4f211f457fc588b53d03f08c10b091bbf31fa4addaaf1e199f4e","cross_cats_sorted":["cs.NI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MM","submitted_at":"2018-12-17T11:36:52Z","title_canon_sha256":"c333eb63950d5c171bf512f8caf7137148164ebcde1821ea9f5674da1fa31008"},"schema_version":"1.0","source":{"id":"1812.06713","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.06713","created_at":"2026-05-17T23:57:19Z"},{"alias_kind":"arxiv_version","alias_value":"1812.06713v2","created_at":"2026-05-17T23:57:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.06713","created_at":"2026-05-17T23:57:19Z"},{"alias_kind":"pith_short_12","alias_value":"XINRRLT2JVY2","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_16","alias_value":"XINRRLT2JVY2F3KP","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_8","alias_value":"XINRRLT2","created_at":"2026-05-18T12:33:01Z"}],"graph_snapshots":[{"event_id":"sha256:b0cd73c63f6c3202e5cc9486a9ea146351aba27022f21d35d8f7d3ac580575ec","target":"graph","created_at":"2026-05-17T23:57:19Z","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":"Non-orthogonal multiple access (NOMA) has shown potential for scalable multicast of video data. However, one key drawback for NOMA-based video multicast is the limited number of layers allowed by the embedded successive interference cancellation algorithm, failing to meet satisfaction of heterogeneous receivers. We propose a novel receiver-driven superposed video multicast (Supcast) scheme by integrating Softcast, an analog-like transmission scheme, into the NOMA-based system to achieve high bandwidth efficiency as well as gradual decoding quality proportional to channel conditions at receiver","authors_text":"Chang Wen Chen, Feng Wu, Hancheng Lu, Xiaoda Jiang","cross_cats":["cs.NI"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MM","submitted_at":"2018-12-17T11:36:52Z","title":"Receiver-driven Video Multicast over NOMA Systems in Heterogeneous Environments"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.06713","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:a006d433c7ea809647ef89648a524603b4a9c9e1cd0a5ac91639e66cda10f110","target":"record","created_at":"2026-05-17T23:57:19Z","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":"baa32ae4b4ce4f211f457fc588b53d03f08c10b091bbf31fa4addaaf1e199f4e","cross_cats_sorted":["cs.NI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MM","submitted_at":"2018-12-17T11:36:52Z","title_canon_sha256":"c333eb63950d5c171bf512f8caf7137148164ebcde1821ea9f5674da1fa31008"},"schema_version":"1.0","source":{"id":"1812.06713","kind":"arxiv","version":2}},"canonical_sha256":"ba1b18ae7a4d71a2ed4f30690d0dd0f01e5c8a765b73b744792b40f617fb8e50","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ba1b18ae7a4d71a2ed4f30690d0dd0f01e5c8a765b73b744792b40f617fb8e50","first_computed_at":"2026-05-17T23:57:19.017383Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:57:19.017383Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7CSHcQR7qrBCiduU2j/PPlfi4GU9Uufj2V8OLaNWXFkb8LJ8A7du5KZfC9U4Og2WDxv3RY+3nIa4qxp2nuTECg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:57:19.018041Z","signed_message":"canonical_sha256_bytes"},"source_id":"1812.06713","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a006d433c7ea809647ef89648a524603b4a9c9e1cd0a5ac91639e66cda10f110","sha256:b0cd73c63f6c3202e5cc9486a9ea146351aba27022f21d35d8f7d3ac580575ec"],"state_sha256":"6eaffb3c6b1011bc8b707eda16ff880cf61b6c7ac283cd937d055d7b6179b226"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"en8Rv6zs4kTU+Q+5YG7sBWt8soHj9FAs8G/MWPgd1t7SEH4RfvpQPvfDDErxDH4DMwhlHWsreUdGDt4BlcclCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T07:36:20.851174Z","bundle_sha256":"75a2a8231ab8d44d21faf001999998ccda0b8aa3c08122cf7c8688e1c8c2e97c"}}