{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2007:2XZLATXOOIJ56JPZCTLD47HR62","short_pith_number":"pith:2XZLATXO","schema_version":"1.0","canonical_sha256":"d5f2b04eee7213df25f914d63e7cf1f6affafb1910bd3d7afe316322ae5f0c00","source":{"kind":"arxiv","id":"0704.3644","version":1},"attestation_state":"computed","paper":{"title":"Capacity Gain from Two-Transmitter and Two-Receiver Cooperation","license":"","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Andrea J. Goldsmith, Chris T. K. Ng, Nihar Jindal, Urbashi Mitra","submitted_at":"2007-04-27T00:52:11Z","abstract_excerpt":"Capacity improvement from transmitter and receiver cooperation is investigated in a two-transmitter, two-receiver network with phase fading and full channel state information available at all terminals. The transmitters cooperate by first exchanging messages over an orthogonal transmitter cooperation channel, then encoding jointly with dirty paper coding. The receivers cooperate by using Wyner-Ziv compress-and-forward over an analogous orthogonal receiver cooperation channel. To account for the cost of cooperation, the allocation of network power and bandwidth among the data and cooperation ch"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"0704.3644","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cs.IT","submitted_at":"2007-04-27T00:52:11Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"97255ee0cf5475bd355d9632ddbde5d3fa684a9fb7661bac46ffab741de806da","abstract_canon_sha256":"36e578b7a84419de57c9962f0e5f5638f18f0897a62ee3e20774d8931464183b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:58:26.201638Z","signature_b64":"DOShOU/aMzKxIev9ly9fZVm6uk95te9WYPH9Y5ORgvBPavy+aT0n7GoAzBTFdUPZfmm7KnBpHhl0JBABOTPOAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d5f2b04eee7213df25f914d63e7cf1f6affafb1910bd3d7afe316322ae5f0c00","last_reissued_at":"2026-05-18T00:58:26.201003Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:58:26.201003Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Capacity Gain from Two-Transmitter and Two-Receiver Cooperation","license":"","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Andrea J. Goldsmith, Chris T. K. Ng, Nihar Jindal, Urbashi Mitra","submitted_at":"2007-04-27T00:52:11Z","abstract_excerpt":"Capacity improvement from transmitter and receiver cooperation is investigated in a two-transmitter, two-receiver network with phase fading and full channel state information available at all terminals. The transmitters cooperate by first exchanging messages over an orthogonal transmitter cooperation channel, then encoding jointly with dirty paper coding. The receivers cooperate by using Wyner-Ziv compress-and-forward over an analogous orthogonal receiver cooperation channel. To account for the cost of cooperation, the allocation of network power and bandwidth among the data and cooperation ch"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0704.3644","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"0704.3644","created_at":"2026-05-18T00:58:26.201088+00:00"},{"alias_kind":"arxiv_version","alias_value":"0704.3644v1","created_at":"2026-05-18T00:58:26.201088+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0704.3644","created_at":"2026-05-18T00:58:26.201088+00:00"},{"alias_kind":"pith_short_12","alias_value":"2XZLATXOOIJ5","created_at":"2026-05-18T12:25:54.717736+00:00"},{"alias_kind":"pith_short_16","alias_value":"2XZLATXOOIJ56JPZ","created_at":"2026-05-18T12:25:54.717736+00:00"},{"alias_kind":"pith_short_8","alias_value":"2XZLATXO","created_at":"2026-05-18T12:25:54.717736+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/2XZLATXOOIJ56JPZCTLD47HR62","json":"https://pith.science/pith/2XZLATXOOIJ56JPZCTLD47HR62.json","graph_json":"https://pith.science/api/pith-number/2XZLATXOOIJ56JPZCTLD47HR62/graph.json","events_json":"https://pith.science/api/pith-number/2XZLATXOOIJ56JPZCTLD47HR62/events.json","paper":"https://pith.science/paper/2XZLATXO"},"agent_actions":{"view_html":"https://pith.science/pith/2XZLATXOOIJ56JPZCTLD47HR62","download_json":"https://pith.science/pith/2XZLATXOOIJ56JPZCTLD47HR62.json","view_paper":"https://pith.science/paper/2XZLATXO","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0704.3644&json=true","fetch_graph":"https://pith.science/api/pith-number/2XZLATXOOIJ56JPZCTLD47HR62/graph.json","fetch_events":"https://pith.science/api/pith-number/2XZLATXOOIJ56JPZCTLD47HR62/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/2XZLATXOOIJ56JPZCTLD47HR62/action/timestamp_anchor","attest_storage":"https://pith.science/pith/2XZLATXOOIJ56JPZCTLD47HR62/action/storage_attestation","attest_author":"https://pith.science/pith/2XZLATXOOIJ56JPZCTLD47HR62/action/author_attestation","sign_citation":"https://pith.science/pith/2XZLATXOOIJ56JPZCTLD47HR62/action/citation_signature","submit_replication":"https://pith.science/pith/2XZLATXOOIJ56JPZCTLD47HR62/action/replication_record"}},"created_at":"2026-05-18T00:58:26.201088+00:00","updated_at":"2026-05-18T00:58:26.201088+00:00"}