{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:MFYNNKEBCR5JG23TMMDZ3357I5","short_pith_number":"pith:MFYNNKEB","canonical_record":{"source":{"id":"1507.00071","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2015-07-01T00:07:01Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"8e7f3dc2789ace6b032b72a7380c9318772055e4bf88281d9c09bf8bd16367e8","abstract_canon_sha256":"c62db99acbb1b44eb6a765a9b21a45e36f3b5488d468fda283e7668de0030eb4"},"schema_version":"1.0"},"canonical_sha256":"6170d6a881147a936b7363079defbf476af2d67f34c8174a53fe126830a9a8f7","source":{"kind":"arxiv","id":"1507.00071","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.00071","created_at":"2026-05-18T00:58:35Z"},{"alias_kind":"arxiv_version","alias_value":"1507.00071v1","created_at":"2026-05-18T00:58:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.00071","created_at":"2026-05-18T00:58:35Z"},{"alias_kind":"pith_short_12","alias_value":"MFYNNKEBCR5J","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_16","alias_value":"MFYNNKEBCR5JG23T","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_8","alias_value":"MFYNNKEB","created_at":"2026-05-18T12:29:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:MFYNNKEBCR5JG23TMMDZ3357I5","target":"record","payload":{"canonical_record":{"source":{"id":"1507.00071","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2015-07-01T00:07:01Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"8e7f3dc2789ace6b032b72a7380c9318772055e4bf88281d9c09bf8bd16367e8","abstract_canon_sha256":"c62db99acbb1b44eb6a765a9b21a45e36f3b5488d468fda283e7668de0030eb4"},"schema_version":"1.0"},"canonical_sha256":"6170d6a881147a936b7363079defbf476af2d67f34c8174a53fe126830a9a8f7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:58:35.366174Z","signature_b64":"Po7eTwOlqrQQAZkXVxraeGxy202xI6pbWHcabM81QYqUs8ypg+xOOVPD0KMgqDTSjgBUNQii/FcY08znQcFFAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6170d6a881147a936b7363079defbf476af2d67f34c8174a53fe126830a9a8f7","last_reissued_at":"2026-05-18T00:58:35.365653Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:58:35.365653Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1507.00071","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:58:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"812meKuIuzsoaFk357OWuwI/C1CNSX1CtKYxvfIyQXRBbgtRWpQ9gMI8SQN9LjRI7ZCUKRvs0gKSlOVhYrniCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T01:56:14.282078Z"},"content_sha256":"0780e106c9d2d97a751ab33063007c0001615f1b0f4293f901b1538c0e080402","schema_version":"1.0","event_id":"sha256:0780e106c9d2d97a751ab33063007c0001615f1b0f4293f901b1538c0e080402"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:MFYNNKEBCR5JG23TMMDZ3357I5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Optimal time sharing in underlay cognitive radio systems with RF energy harvesting","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Daniel Denkovski, Liljana Gavrilovska, Valentin Rakovic, Zoran Hadzi-Velkov","submitted_at":"2015-07-01T00:07:01Z","abstract_excerpt":"Due to the fundamental tradeoffs, achieving spectrum efficiency and energy efficiency are two contending design challenges for the future wireless networks. However, applying radio-frequency (RF) energy harvesting (EH) in a cognitive radio system could potentially circumvent this tradeoff, resulting in a secondary system with limitless power supply and meaningful achievable information rates. This paper proposes an online solution for the optimal time allocation (time sharing) between the EH phase and the information transmission (IT) phase in an underlay cognitive radio system, which harvests"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.00071","kind":"arxiv","version":1},"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":"2026-05-18T00:58:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FrpJp5kT6+5tLF/gpS0DPFyuT6JkRLmu8V8zVVAhkq+v5gW8GvlQ9Tmz6f8mk2qu6VI27yM8kKZffYLxcro6Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T01:56:14.282459Z"},"content_sha256":"d672f603e344e7b0f0fbccc142e8b8f21ae3257c949c119e1c789e3616598442","schema_version":"1.0","event_id":"sha256:d672f603e344e7b0f0fbccc142e8b8f21ae3257c949c119e1c789e3616598442"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MFYNNKEBCR5JG23TMMDZ3357I5/bundle.json","state_url":"https://pith.science/pith/MFYNNKEBCR5JG23TMMDZ3357I5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MFYNNKEBCR5JG23TMMDZ3357I5/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":"2026-05-27T01:56:14Z","links":{"resolver":"https://pith.science/pith/MFYNNKEBCR5JG23TMMDZ3357I5","bundle":"https://pith.science/pith/MFYNNKEBCR5JG23TMMDZ3357I5/bundle.json","state":"https://pith.science/pith/MFYNNKEBCR5JG23TMMDZ3357I5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MFYNNKEBCR5JG23TMMDZ3357I5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:MFYNNKEBCR5JG23TMMDZ3357I5","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":"c62db99acbb1b44eb6a765a9b21a45e36f3b5488d468fda283e7668de0030eb4","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2015-07-01T00:07:01Z","title_canon_sha256":"8e7f3dc2789ace6b032b72a7380c9318772055e4bf88281d9c09bf8bd16367e8"},"schema_version":"1.0","source":{"id":"1507.00071","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.00071","created_at":"2026-05-18T00:58:35Z"},{"alias_kind":"arxiv_version","alias_value":"1507.00071v1","created_at":"2026-05-18T00:58:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.00071","created_at":"2026-05-18T00:58:35Z"},{"alias_kind":"pith_short_12","alias_value":"MFYNNKEBCR5J","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_16","alias_value":"MFYNNKEBCR5JG23T","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_8","alias_value":"MFYNNKEB","created_at":"2026-05-18T12:29:32Z"}],"graph_snapshots":[{"event_id":"sha256:d672f603e344e7b0f0fbccc142e8b8f21ae3257c949c119e1c789e3616598442","target":"graph","created_at":"2026-05-18T00:58:35Z","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":"Due to the fundamental tradeoffs, achieving spectrum efficiency and energy efficiency are two contending design challenges for the future wireless networks. However, applying radio-frequency (RF) energy harvesting (EH) in a cognitive radio system could potentially circumvent this tradeoff, resulting in a secondary system with limitless power supply and meaningful achievable information rates. This paper proposes an online solution for the optimal time allocation (time sharing) between the EH phase and the information transmission (IT) phase in an underlay cognitive radio system, which harvests","authors_text":"Daniel Denkovski, Liljana Gavrilovska, Valentin Rakovic, Zoran Hadzi-Velkov","cross_cats":["math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2015-07-01T00:07:01Z","title":"Optimal time sharing in underlay cognitive radio systems with RF energy harvesting"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.00071","kind":"arxiv","version":1},"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":"sha256:0780e106c9d2d97a751ab33063007c0001615f1b0f4293f901b1538c0e080402","target":"record","created_at":"2026-05-18T00:58:35Z","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":"c62db99acbb1b44eb6a765a9b21a45e36f3b5488d468fda283e7668de0030eb4","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2015-07-01T00:07:01Z","title_canon_sha256":"8e7f3dc2789ace6b032b72a7380c9318772055e4bf88281d9c09bf8bd16367e8"},"schema_version":"1.0","source":{"id":"1507.00071","kind":"arxiv","version":1}},"canonical_sha256":"6170d6a881147a936b7363079defbf476af2d67f34c8174a53fe126830a9a8f7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6170d6a881147a936b7363079defbf476af2d67f34c8174a53fe126830a9a8f7","first_computed_at":"2026-05-18T00:58:35.365653Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:58:35.365653Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Po7eTwOlqrQQAZkXVxraeGxy202xI6pbWHcabM81QYqUs8ypg+xOOVPD0KMgqDTSjgBUNQii/FcY08znQcFFAw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:58:35.366174Z","signed_message":"canonical_sha256_bytes"},"source_id":"1507.00071","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0780e106c9d2d97a751ab33063007c0001615f1b0f4293f901b1538c0e080402","sha256:d672f603e344e7b0f0fbccc142e8b8f21ae3257c949c119e1c789e3616598442"],"state_sha256":"461b7f550e60fc50f00eaeb79d64a213950f6a04424e6a50148ea2678867a4fc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1OGjsJLHLqhpyR5T4vpKsdYusp4W8QSYgS8GHmbTeF1qMNVIxD05OzjYMhqw0Tpa9yszc1KJJWs12vSABRqWDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T01:56:14.284893Z","bundle_sha256":"22fd3b4477ba3f98590ea4c3cfb9b7996a6bf4464e7d3b9c8d67d29e9de1ee7d"}}