{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:OLEEPFFLILMOYOUMK36CHUPXHN","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":"4927537723ed85a4500ff7c54365eedff76cfae3e2cc409e352fa3f8d55479f4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2013-02-02T00:16:17Z","title_canon_sha256":"0ce20ec02aa6c4fa3e51e657b60d9e870d413a904ff5c0c9591e803cef0f6a43"},"schema_version":"1.0","source":{"id":"1302.0320","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1302.0320","created_at":"2026-05-18T03:20:09Z"},{"alias_kind":"arxiv_version","alias_value":"1302.0320v2","created_at":"2026-05-18T03:20:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1302.0320","created_at":"2026-05-18T03:20:09Z"},{"alias_kind":"pith_short_12","alias_value":"OLEEPFFLILMO","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_16","alias_value":"OLEEPFFLILMOYOUM","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_8","alias_value":"OLEEPFFL","created_at":"2026-05-18T12:27:54Z"}],"graph_snapshots":[{"event_id":"sha256:2d60feed18e87dd241f98306fffb3dbd5fcc3235f8985119569f941bc24b3e46","target":"graph","created_at":"2026-05-18T03:20:09Z","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":"The explosive growth in data traffic is resulting in a spectrum crunch forcing many wireless network operators to look towards refarming their 2G spectrum and deploy more spectrally efficient Long Term Evolution (LTE) technology. However, mobile network operators face a challenge when it comes to spectrum refarming because 2G technologies such as Global System for Mobile (GSM) is still widely used for low bandwidth machine-to-machine (M2M) devices. M2M devices typically have long life cycles, e.g. smart meters, and it is expensive to migrate these devices to newer technology since a truck roll","authors_text":"Harish Viswanathan, Xingqin Lin","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2013-02-02T00:16:17Z","title":"Dynamic Spectrum Refarming with Overlay for Legacy Devices"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1302.0320","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":"sha256:85c438383dbf49bc0dcf6d8231bb7cad2efebd3fdcf27546df64af3d3f568efc","target":"record","created_at":"2026-05-18T03:20:09Z","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":"4927537723ed85a4500ff7c54365eedff76cfae3e2cc409e352fa3f8d55479f4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2013-02-02T00:16:17Z","title_canon_sha256":"0ce20ec02aa6c4fa3e51e657b60d9e870d413a904ff5c0c9591e803cef0f6a43"},"schema_version":"1.0","source":{"id":"1302.0320","kind":"arxiv","version":2}},"canonical_sha256":"72c84794ab42d8ec3a8c56fc23d1f73b7fb7555d7a33320f9a73241581fde3b8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"72c84794ab42d8ec3a8c56fc23d1f73b7fb7555d7a33320f9a73241581fde3b8","first_computed_at":"2026-05-18T03:20:09.296857Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:20:09.296857Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qSAIiMsp2ytKauW8V+mROKtfaZ0WNFC4BotlTHkk9bmnueeiGFUz3BqGmuvN2YpFnHqZkXf4Gmrc6pwGL7OkCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:20:09.297282Z","signed_message":"canonical_sha256_bytes"},"source_id":"1302.0320","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:85c438383dbf49bc0dcf6d8231bb7cad2efebd3fdcf27546df64af3d3f568efc","sha256:2d60feed18e87dd241f98306fffb3dbd5fcc3235f8985119569f941bc24b3e46"],"state_sha256":"7518028f86843e21e2f4a52a4b9165c31ffca42e1caadf337047532bab5ef48c"}