{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:BM4V4HSUMLD55NJ3AXB4IGUM2W","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":"ec1d448da70bb9b0ff135249de9289106217a42980e87cdf5d625e5d96064daa","cross_cats_sorted":["cs.IT","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2013-04-05T13:25:36Z","title_canon_sha256":"5d9ce0c253176dc648aa9dd9c0b1bfbbbca16a8c1b18144b89f58e8a0b39f8a6"},"schema_version":"1.0","source":{"id":"1304.1705","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1304.1705","created_at":"2026-05-18T03:28:54Z"},{"alias_kind":"arxiv_version","alias_value":"1304.1705v1","created_at":"2026-05-18T03:28:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.1705","created_at":"2026-05-18T03:28:54Z"},{"alias_kind":"pith_short_12","alias_value":"BM4V4HSUMLD5","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_16","alias_value":"BM4V4HSUMLD55NJ3","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_8","alias_value":"BM4V4HSU","created_at":"2026-05-18T12:27:40Z"}],"graph_snapshots":[{"event_id":"sha256:48140d34d1cc7ca87654d2a4d3bf5158882fb0b40cac4192fa9754ccfd49cb4f","target":"graph","created_at":"2026-05-18T03:28:54Z","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":"A network coding-based scheme is proposed to improve the energy efficiency of distributed storage systems in WSNs (wireless sensor networks), which mainly focuses on two problems: firstly, consideration is given to effective distributed storage technology in WSNs; secondly, we address how to repair the data in failed storage nodes with less resource. For the first problem, we propose a method to obtain a sparse generator matrix to construct network codes, and this sparse generator matrix is proven to be the sparsest. Benefiting from the sparse generator matrix, the energy consumption required ","authors_text":"Lu wei, Wang Lei, Yang Yuwang, Zhao Wei","cross_cats":["cs.IT","math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2013-04-05T13:25:36Z","title":"Network Coding for Energy-Efficient Distributed Storage System in Wireless Sensor Networks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.1705","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:aa9055d14c4f248cbd67c4393f4ba912da3ee7738ccc589c552b8676785a79f0","target":"record","created_at":"2026-05-18T03:28:54Z","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":"ec1d448da70bb9b0ff135249de9289106217a42980e87cdf5d625e5d96064daa","cross_cats_sorted":["cs.IT","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2013-04-05T13:25:36Z","title_canon_sha256":"5d9ce0c253176dc648aa9dd9c0b1bfbbbca16a8c1b18144b89f58e8a0b39f8a6"},"schema_version":"1.0","source":{"id":"1304.1705","kind":"arxiv","version":1}},"canonical_sha256":"0b395e1e5462c7deb53b05c3c41a8cd5a90eefefc5ecce7543a9c5d9be472b53","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0b395e1e5462c7deb53b05c3c41a8cd5a90eefefc5ecce7543a9c5d9be472b53","first_computed_at":"2026-05-18T03:28:54.888994Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:28:54.888994Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fbFgJV9TKLpClEEmIDtFqHfmuJgf/M1ujMqwP5mkNTJjX3jOUnaWom8ixOy2IkIl6PH+T5IQZiN6GOB31WVBBA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:28:54.889420Z","signed_message":"canonical_sha256_bytes"},"source_id":"1304.1705","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:aa9055d14c4f248cbd67c4393f4ba912da3ee7738ccc589c552b8676785a79f0","sha256:48140d34d1cc7ca87654d2a4d3bf5158882fb0b40cac4192fa9754ccfd49cb4f"],"state_sha256":"d9fcbbd008aaf273c63e3453de938271b24e1bc0d0540fc8448fb585f2b08be0"}