{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:7C7XT44NIZI4XXA6R77A4WSQ2J","short_pith_number":"pith:7C7XT44N","canonical_record":{"source":{"id":"1403.3196","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2014-03-13T08:26:09Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"a670398e1f7f3b78252fd1a10a0a3d4cda1205f6ba35fc080c43a144d298904e","abstract_canon_sha256":"56afc1d7d81484272213ae372b9f61f3d42fd9d6cdf348c990b1f5e780e4eaea"},"schema_version":"1.0"},"canonical_sha256":"f8bf79f38d4651cbdc1e8ffe0e5a50d24ad85f83321f7b5512a921b640161157","source":{"kind":"arxiv","id":"1403.3196","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.3196","created_at":"2026-05-18T02:55:27Z"},{"alias_kind":"arxiv_version","alias_value":"1403.3196v2","created_at":"2026-05-18T02:55:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.3196","created_at":"2026-05-18T02:55:27Z"},{"alias_kind":"pith_short_12","alias_value":"7C7XT44NIZI4","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_16","alias_value":"7C7XT44NIZI4XXA6","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_8","alias_value":"7C7XT44N","created_at":"2026-05-18T12:28:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:7C7XT44NIZI4XXA6R77A4WSQ2J","target":"record","payload":{"canonical_record":{"source":{"id":"1403.3196","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2014-03-13T08:26:09Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"a670398e1f7f3b78252fd1a10a0a3d4cda1205f6ba35fc080c43a144d298904e","abstract_canon_sha256":"56afc1d7d81484272213ae372b9f61f3d42fd9d6cdf348c990b1f5e780e4eaea"},"schema_version":"1.0"},"canonical_sha256":"f8bf79f38d4651cbdc1e8ffe0e5a50d24ad85f83321f7b5512a921b640161157","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:55:27.191290Z","signature_b64":"RKzIv5iUeeRc2a4/k6CfheFhBDpINq2LguuU9zTN74BdgXS1e8gAlMkDMAK4U/Zm0HpXRNwCg3ThIzXxBrSZDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f8bf79f38d4651cbdc1e8ffe0e5a50d24ad85f83321f7b5512a921b640161157","last_reissued_at":"2026-05-18T02:55:27.190873Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:55:27.190873Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1403.3196","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":"2026-05-18T02:55:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cEyBGgPbZgb3VThZQX4s9M4Hm1mzHW0b2VLknSHF4Uw8Sr+ubUQLmRR6lqRmtWHnS7K+LSQYP+NRA88Y6flKDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T05:34:53.474132Z"},"content_sha256":"c63a2c0556b1368c346bddcc07f31cb2b07f01a1029e3491c29dcaa56306716d","schema_version":"1.0","event_id":"sha256:c63a2c0556b1368c346bddcc07f31cb2b07f01a1029e3491c29dcaa56306716d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:7C7XT44NIZI4XXA6R77A4WSQ2J","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Secure Beamforming For MIMO Broadcasting With Wireless Information And Power Transfer","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Enbin Song, Jinsong Wu, Qingjiang Shi, Weiqiang Xu, Yaming Wang","submitted_at":"2014-03-13T08:26:09Z","abstract_excerpt":"This paper considers a basic MIMO information-energy (I-E) broadcast system, where a multi-antenna transmitter transmits information and energy simultaneously to a multi-antenna information receiver and a dual-functional multi-antenna energy receiver which is also capable of decoding information. Due to the open nature of wireless medium and the dual purpose of information and energy transmission, secure information transmission while ensuring efficient energy harvesting is a critical issue for such a broadcast system. Assuming that physical layer security techniques are applied to the system "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.3196","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":"2026-05-18T02:55:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YIIYrBWjymhp4+Mup6TYSr9BQw4QFEnbSD/NAqlFn/mNCe0+4hhphppOiq78l2eRsjksxtto8PLHjfn7P1hgDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T05:34:53.474530Z"},"content_sha256":"7d7c2c71c69f5fe84eba0f93ffcebafc27cd7c7faa9062f2026ffbd707031f1d","schema_version":"1.0","event_id":"sha256:7d7c2c71c69f5fe84eba0f93ffcebafc27cd7c7faa9062f2026ffbd707031f1d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7C7XT44NIZI4XXA6R77A4WSQ2J/bundle.json","state_url":"https://pith.science/pith/7C7XT44NIZI4XXA6R77A4WSQ2J/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7C7XT44NIZI4XXA6R77A4WSQ2J/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":"2026-05-26T05:34:53Z","links":{"resolver":"https://pith.science/pith/7C7XT44NIZI4XXA6R77A4WSQ2J","bundle":"https://pith.science/pith/7C7XT44NIZI4XXA6R77A4WSQ2J/bundle.json","state":"https://pith.science/pith/7C7XT44NIZI4XXA6R77A4WSQ2J/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7C7XT44NIZI4XXA6R77A4WSQ2J/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:7C7XT44NIZI4XXA6R77A4WSQ2J","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":"56afc1d7d81484272213ae372b9f61f3d42fd9d6cdf348c990b1f5e780e4eaea","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2014-03-13T08:26:09Z","title_canon_sha256":"a670398e1f7f3b78252fd1a10a0a3d4cda1205f6ba35fc080c43a144d298904e"},"schema_version":"1.0","source":{"id":"1403.3196","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.3196","created_at":"2026-05-18T02:55:27Z"},{"alias_kind":"arxiv_version","alias_value":"1403.3196v2","created_at":"2026-05-18T02:55:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.3196","created_at":"2026-05-18T02:55:27Z"},{"alias_kind":"pith_short_12","alias_value":"7C7XT44NIZI4","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_16","alias_value":"7C7XT44NIZI4XXA6","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_8","alias_value":"7C7XT44N","created_at":"2026-05-18T12:28:16Z"}],"graph_snapshots":[{"event_id":"sha256:7d7c2c71c69f5fe84eba0f93ffcebafc27cd7c7faa9062f2026ffbd707031f1d","target":"graph","created_at":"2026-05-18T02:55:27Z","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 considers a basic MIMO information-energy (I-E) broadcast system, where a multi-antenna transmitter transmits information and energy simultaneously to a multi-antenna information receiver and a dual-functional multi-antenna energy receiver which is also capable of decoding information. Due to the open nature of wireless medium and the dual purpose of information and energy transmission, secure information transmission while ensuring efficient energy harvesting is a critical issue for such a broadcast system. Assuming that physical layer security techniques are applied to the system ","authors_text":"Enbin Song, Jinsong Wu, Qingjiang Shi, Weiqiang Xu, Yaming Wang","cross_cats":["math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2014-03-13T08:26:09Z","title":"Secure Beamforming For MIMO Broadcasting With Wireless Information And Power Transfer"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.3196","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:c63a2c0556b1368c346bddcc07f31cb2b07f01a1029e3491c29dcaa56306716d","target":"record","created_at":"2026-05-18T02:55:27Z","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":"56afc1d7d81484272213ae372b9f61f3d42fd9d6cdf348c990b1f5e780e4eaea","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2014-03-13T08:26:09Z","title_canon_sha256":"a670398e1f7f3b78252fd1a10a0a3d4cda1205f6ba35fc080c43a144d298904e"},"schema_version":"1.0","source":{"id":"1403.3196","kind":"arxiv","version":2}},"canonical_sha256":"f8bf79f38d4651cbdc1e8ffe0e5a50d24ad85f83321f7b5512a921b640161157","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f8bf79f38d4651cbdc1e8ffe0e5a50d24ad85f83321f7b5512a921b640161157","first_computed_at":"2026-05-18T02:55:27.190873Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:55:27.190873Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RKzIv5iUeeRc2a4/k6CfheFhBDpINq2LguuU9zTN74BdgXS1e8gAlMkDMAK4U/Zm0HpXRNwCg3ThIzXxBrSZDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:55:27.191290Z","signed_message":"canonical_sha256_bytes"},"source_id":"1403.3196","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c63a2c0556b1368c346bddcc07f31cb2b07f01a1029e3491c29dcaa56306716d","sha256:7d7c2c71c69f5fe84eba0f93ffcebafc27cd7c7faa9062f2026ffbd707031f1d"],"state_sha256":"abf2ab203dfff312c216699407e1a6e74479ca7d547f41e25795ca6f1af4183d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ot00cZoe2SU3FTvzgl5ADopmydNKoAYNY5g5cuEuACoS5Rp3qu2/pU3/d6ukFi7YDEYn7vzlViDfXnX74iWICA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T05:34:53.477039Z","bundle_sha256":"e536d5f6047e07a75fddd817f8f515cb7e7e90cdd51dd964577f66e980e79614"}}