{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:6TSU24ND4WF3HZXCYIN2VONKAA","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":"6583fc82c8178f321eacac980c3987151b6c57767d263751d3e4a5df65520070","cross_cats_sorted":["eess.SP","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2019-06-14T19:50:18Z","title_canon_sha256":"3103e222f8276b3405ada84e45b7087ddb922e876e09c8815abe559d42663291"},"schema_version":"1.0","source":{"id":"1906.06380","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1906.06380","created_at":"2026-05-17T23:43:13Z"},{"alias_kind":"arxiv_version","alias_value":"1906.06380v1","created_at":"2026-05-17T23:43:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1906.06380","created_at":"2026-05-17T23:43:13Z"},{"alias_kind":"pith_short_12","alias_value":"6TSU24ND4WF3","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_16","alias_value":"6TSU24ND4WF3HZXC","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_8","alias_value":"6TSU24ND","created_at":"2026-05-18T12:33:10Z"}],"graph_snapshots":[{"event_id":"sha256:d38f2982ecc111aecbfccd0a75b2b5c763f52438c9e61061faab5f03ba5205d5","target":"graph","created_at":"2026-05-17T23:43:13Z","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":"Wireless edge is about distributing intelligence to the wireless devices wherein the distribution of accurate time reference is essential for time-critical machine-type communication (cMTC). In 5G-based cMTC, enabling time synchronization in the wireless edge means moving beyond the current synchronization needs and solutions in 5G radio access. In this article, we analyze the device-level synchronization needs of potential cMTC applications: industrial automation, power distribution, vehicular communication, and live audio/video production. We present an over-the-air (OTA) synchronization sch","authors_text":"Aamir Mahmood, Joachim Sachs, Johan Torsner, Mikael Gidlund, Muhammad Ikram Ashraf","cross_cats":["eess.SP","math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2019-06-14T19:50:18Z","title":"Time Synchronization in 5G Wireless Edge: Requirements and Solutions for Critical-MTC"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.06380","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":"sha256:2b4f9084d0e7d7dbed51a11177c8d931bb70369f2abce87d9472d1d2020353e9","target":"record","created_at":"2026-05-17T23:43:13Z","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":"6583fc82c8178f321eacac980c3987151b6c57767d263751d3e4a5df65520070","cross_cats_sorted":["eess.SP","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2019-06-14T19:50:18Z","title_canon_sha256":"3103e222f8276b3405ada84e45b7087ddb922e876e09c8815abe559d42663291"},"schema_version":"1.0","source":{"id":"1906.06380","kind":"arxiv","version":1}},"canonical_sha256":"f4e54d71a3e58bb3e6e2c21baab9aa0036a95a64454b56b5d7ad7c1c4a57c884","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f4e54d71a3e58bb3e6e2c21baab9aa0036a95a64454b56b5d7ad7c1c4a57c884","first_computed_at":"2026-05-17T23:43:13.888925Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:43:13.888925Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XPhDsfR1KGtJw82L3ViNgr9KjorRjnTgFMD0w88mSqdGbsJcaYYksrYnBqdr963G2wwM/ldNfDgG9boF9xRrDA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:43:13.889489Z","signed_message":"canonical_sha256_bytes"},"source_id":"1906.06380","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2b4f9084d0e7d7dbed51a11177c8d931bb70369f2abce87d9472d1d2020353e9","sha256:d38f2982ecc111aecbfccd0a75b2b5c763f52438c9e61061faab5f03ba5205d5"],"state_sha256":"08f87f5c04d605163e58ccf85e5c4582bceac73c03701f77a698b74bb9564547"}