{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:P75CRCDAS6OOCY7XEPCO2EVH53","short_pith_number":"pith:P75CRCDA","schema_version":"1.0","canonical_sha256":"7ffa288860979ce163f723c4ed12a7eef11f87512d29cdd6aad6a385dc000c08","source":{"kind":"arxiv","id":"1505.03231","version":1},"attestation_state":"computed","paper":{"title":"An Information-theoretic Model for Knowledge Sharing in Opportunistic Social Networks","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.NI","authors_text":"Ahmed Helmy, Ahmed Zahran, Mai ElSherief, Tamer ElBatt","submitted_at":"2015-05-13T03:52:44Z","abstract_excerpt":"In this paper we establish fundamental limits on the performance of knowledge sharing in opportunistic social net- works. In particular, we introduce a novel information-theoretic model to characterize the performance limits of knowledge sharing policies. Towards this objective, we first introduce the notions of knowledge gain and its upper bound, knowledge gain limit, per user. Second, we characterize these quantities for a number of network topologies and sharing policies. This work constitutes a first step towards defining and characterizing the performance limits and trade-offs associated "},"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":"1505.03231","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2015-05-13T03:52:44Z","cross_cats_sorted":[],"title_canon_sha256":"4c8da1f14c04ab9961f50f8bbc71593727bad8266307a069cf15b360a812f924","abstract_canon_sha256":"b75e341b257d9049e0e481e497a8267649c20f5cefed92736eda11a2a8c146eb"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:12:09.957244Z","signature_b64":"iGc+4zWyr+6wa42L9XJqasAPs51qQe+RycKpckG4/lwpPEXpMmon6At/2ow70rKuJpNdd/DbXQPVtjsAJD0vDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7ffa288860979ce163f723c4ed12a7eef11f87512d29cdd6aad6a385dc000c08","last_reissued_at":"2026-05-18T02:12:09.956715Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:12:09.956715Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"An Information-theoretic Model for Knowledge Sharing in Opportunistic Social Networks","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.NI","authors_text":"Ahmed Helmy, Ahmed Zahran, Mai ElSherief, Tamer ElBatt","submitted_at":"2015-05-13T03:52:44Z","abstract_excerpt":"In this paper we establish fundamental limits on the performance of knowledge sharing in opportunistic social net- works. In particular, we introduce a novel information-theoretic model to characterize the performance limits of knowledge sharing policies. Towards this objective, we first introduce the notions of knowledge gain and its upper bound, knowledge gain limit, per user. Second, we characterize these quantities for a number of network topologies and sharing policies. This work constitutes a first step towards defining and characterizing the performance limits and trade-offs associated "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.03231","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":"1505.03231","created_at":"2026-05-18T02:12:09.956805+00:00"},{"alias_kind":"arxiv_version","alias_value":"1505.03231v1","created_at":"2026-05-18T02:12:09.956805+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.03231","created_at":"2026-05-18T02:12:09.956805+00:00"},{"alias_kind":"pith_short_12","alias_value":"P75CRCDAS6OO","created_at":"2026-05-18T12:29:34.919912+00:00"},{"alias_kind":"pith_short_16","alias_value":"P75CRCDAS6OOCY7X","created_at":"2026-05-18T12:29:34.919912+00:00"},{"alias_kind":"pith_short_8","alias_value":"P75CRCDA","created_at":"2026-05-18T12:29:34.919912+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/P75CRCDAS6OOCY7XEPCO2EVH53","json":"https://pith.science/pith/P75CRCDAS6OOCY7XEPCO2EVH53.json","graph_json":"https://pith.science/api/pith-number/P75CRCDAS6OOCY7XEPCO2EVH53/graph.json","events_json":"https://pith.science/api/pith-number/P75CRCDAS6OOCY7XEPCO2EVH53/events.json","paper":"https://pith.science/paper/P75CRCDA"},"agent_actions":{"view_html":"https://pith.science/pith/P75CRCDAS6OOCY7XEPCO2EVH53","download_json":"https://pith.science/pith/P75CRCDAS6OOCY7XEPCO2EVH53.json","view_paper":"https://pith.science/paper/P75CRCDA","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1505.03231&json=true","fetch_graph":"https://pith.science/api/pith-number/P75CRCDAS6OOCY7XEPCO2EVH53/graph.json","fetch_events":"https://pith.science/api/pith-number/P75CRCDAS6OOCY7XEPCO2EVH53/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/P75CRCDAS6OOCY7XEPCO2EVH53/action/timestamp_anchor","attest_storage":"https://pith.science/pith/P75CRCDAS6OOCY7XEPCO2EVH53/action/storage_attestation","attest_author":"https://pith.science/pith/P75CRCDAS6OOCY7XEPCO2EVH53/action/author_attestation","sign_citation":"https://pith.science/pith/P75CRCDAS6OOCY7XEPCO2EVH53/action/citation_signature","submit_replication":"https://pith.science/pith/P75CRCDAS6OOCY7XEPCO2EVH53/action/replication_record"}},"created_at":"2026-05-18T02:12:09.956805+00:00","updated_at":"2026-05-18T02:12:09.956805+00:00"}