{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:D4C2RQ34EAEPFSFGEBPGDSOZTM","short_pith_number":"pith:D4C2RQ34","canonical_record":{"source":{"id":"1403.7123","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2014-03-27T16:34:00Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"76b47c0cb126331ed19036f33f7e33982321bab7155f32fe01f48910d8d4f28c","abstract_canon_sha256":"2cd5367289a350e2fad6794991cc567b7756ee2b54d866edd34fffa458eeb8bf"},"schema_version":"1.0"},"canonical_sha256":"1f05a8c37c2008f2c8a6205e61c9d99b19d32be4d66928322d7111411fa45d7f","source":{"kind":"arxiv","id":"1403.7123","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.7123","created_at":"2026-05-18T02:54:46Z"},{"alias_kind":"arxiv_version","alias_value":"1403.7123v2","created_at":"2026-05-18T02:54:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.7123","created_at":"2026-05-18T02:54:46Z"},{"alias_kind":"pith_short_12","alias_value":"D4C2RQ34EAEP","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_16","alias_value":"D4C2RQ34EAEPFSFG","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_8","alias_value":"D4C2RQ34","created_at":"2026-05-18T12:28:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:D4C2RQ34EAEPFSFGEBPGDSOZTM","target":"record","payload":{"canonical_record":{"source":{"id":"1403.7123","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2014-03-27T16:34:00Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"76b47c0cb126331ed19036f33f7e33982321bab7155f32fe01f48910d8d4f28c","abstract_canon_sha256":"2cd5367289a350e2fad6794991cc567b7756ee2b54d866edd34fffa458eeb8bf"},"schema_version":"1.0"},"canonical_sha256":"1f05a8c37c2008f2c8a6205e61c9d99b19d32be4d66928322d7111411fa45d7f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:54:46.398622Z","signature_b64":"DRVeGSJ84oh5FXS4hpcejrIGAeJTGM6WqJn74BijPdEF8v9lutMfCJYKmc1OMg/vigp3SjR6VkdRSVDRk/beBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1f05a8c37c2008f2c8a6205e61c9d99b19d32be4d66928322d7111411fa45d7f","last_reissued_at":"2026-05-18T02:54:46.398081Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:54:46.398081Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1403.7123","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":"2026-05-18T02:54:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7ZzfpTl70QDdvZSuDupxWWLYhzNfaAH77iqCS5sOzveB9L5Ox5zXpsNsEqP7HRs5IO04kWzKhmpeydhAApoDDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T06:52:08.035015Z"},"content_sha256":"74b4fe7825c04df27354e9a11e5cda1797cf50bc5de908a00224539e011c7bf8","schema_version":"1.0","event_id":"sha256:74b4fe7825c04df27354e9a11e5cda1797cf50bc5de908a00224539e011c7bf8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:D4C2RQ34EAEPFSFGEBPGDSOZTM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"User Cooperation in Wireless Powered Communication Networks","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Hyungsik Ju, Rui Zhang","submitted_at":"2014-03-27T16:34:00Z","abstract_excerpt":"This paper studies user cooperation in the emerging wireless powered communication network (WPCN) for throughput optimization. For the purpose of exposition, we consider a two-user WPCN, in which one hybrid access point (H-AP) broadcasts wireless energy to two distributed users in the downlink (DL) and the users transmit their independent information using their individually harvested energy to the H-AP in the uplink (UL) through time-division-multiple-access (TDMA). We propose user cooperation in the WPCN where the user which is nearer to the H-AP and has a better channel for DL energy harves"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.7123","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":"2026-05-18T02:54:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"T7HiDwMUdsZhEsJyLweskW5RTAiieWmyWKPayvPtkfw4jyJNV0Gz08WBQ0sNJZl4LNEOOUznMLdzNiDJo2TWCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T06:52:08.035371Z"},"content_sha256":"b7aeeb90dbbfd3faaf31d48b0f6bea8b919163a4236b4a0cb37afbb5edc56d58","schema_version":"1.0","event_id":"sha256:b7aeeb90dbbfd3faaf31d48b0f6bea8b919163a4236b4a0cb37afbb5edc56d58"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/D4C2RQ34EAEPFSFGEBPGDSOZTM/bundle.json","state_url":"https://pith.science/pith/D4C2RQ34EAEPFSFGEBPGDSOZTM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/D4C2RQ34EAEPFSFGEBPGDSOZTM/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":"2026-07-07T06:52:08Z","links":{"resolver":"https://pith.science/pith/D4C2RQ34EAEPFSFGEBPGDSOZTM","bundle":"https://pith.science/pith/D4C2RQ34EAEPFSFGEBPGDSOZTM/bundle.json","state":"https://pith.science/pith/D4C2RQ34EAEPFSFGEBPGDSOZTM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/D4C2RQ34EAEPFSFGEBPGDSOZTM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:D4C2RQ34EAEPFSFGEBPGDSOZTM","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":"2cd5367289a350e2fad6794991cc567b7756ee2b54d866edd34fffa458eeb8bf","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2014-03-27T16:34:00Z","title_canon_sha256":"76b47c0cb126331ed19036f33f7e33982321bab7155f32fe01f48910d8d4f28c"},"schema_version":"1.0","source":{"id":"1403.7123","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.7123","created_at":"2026-05-18T02:54:46Z"},{"alias_kind":"arxiv_version","alias_value":"1403.7123v2","created_at":"2026-05-18T02:54:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.7123","created_at":"2026-05-18T02:54:46Z"},{"alias_kind":"pith_short_12","alias_value":"D4C2RQ34EAEP","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_16","alias_value":"D4C2RQ34EAEPFSFG","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_8","alias_value":"D4C2RQ34","created_at":"2026-05-18T12:28:25Z"}],"graph_snapshots":[{"event_id":"sha256:b7aeeb90dbbfd3faaf31d48b0f6bea8b919163a4236b4a0cb37afbb5edc56d58","target":"graph","created_at":"2026-05-18T02:54:46Z","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 studies user cooperation in the emerging wireless powered communication network (WPCN) for throughput optimization. For the purpose of exposition, we consider a two-user WPCN, in which one hybrid access point (H-AP) broadcasts wireless energy to two distributed users in the downlink (DL) and the users transmit their independent information using their individually harvested energy to the H-AP in the uplink (UL) through time-division-multiple-access (TDMA). We propose user cooperation in the WPCN where the user which is nearer to the H-AP and has a better channel for DL energy harves","authors_text":"Hyungsik Ju, Rui Zhang","cross_cats":["math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2014-03-27T16:34:00Z","title":"User Cooperation in Wireless Powered Communication Networks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.7123","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":"sha256:74b4fe7825c04df27354e9a11e5cda1797cf50bc5de908a00224539e011c7bf8","target":"record","created_at":"2026-05-18T02:54:46Z","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":"2cd5367289a350e2fad6794991cc567b7756ee2b54d866edd34fffa458eeb8bf","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2014-03-27T16:34:00Z","title_canon_sha256":"76b47c0cb126331ed19036f33f7e33982321bab7155f32fe01f48910d8d4f28c"},"schema_version":"1.0","source":{"id":"1403.7123","kind":"arxiv","version":2}},"canonical_sha256":"1f05a8c37c2008f2c8a6205e61c9d99b19d32be4d66928322d7111411fa45d7f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1f05a8c37c2008f2c8a6205e61c9d99b19d32be4d66928322d7111411fa45d7f","first_computed_at":"2026-05-18T02:54:46.398081Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:54:46.398081Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DRVeGSJ84oh5FXS4hpcejrIGAeJTGM6WqJn74BijPdEF8v9lutMfCJYKmc1OMg/vigp3SjR6VkdRSVDRk/beBw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:54:46.398622Z","signed_message":"canonical_sha256_bytes"},"source_id":"1403.7123","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:74b4fe7825c04df27354e9a11e5cda1797cf50bc5de908a00224539e011c7bf8","sha256:b7aeeb90dbbfd3faaf31d48b0f6bea8b919163a4236b4a0cb37afbb5edc56d58"],"state_sha256":"b2c6942b71b94c742cdc925265334779e219b8412e82ab2c2bfb01e88d3a7924"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hp371CzJ2aOq2Y3xiV8Sw8s7fJEeuwsyJ9oucyiqJa4jasIE+HoW69VeNHSFOLWcEsZaMzJll+lrCGGFYwGsBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T06:52:08.037308Z","bundle_sha256":"dd781b98a0fb24259772c04008ec93d00b42154759935eb136e995b7660c1b7b"}}