{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:6CTGYFZPCSHQQWBSGFIAJCHUPZ","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":"2b9f9a2ad22086cdef64a0dfa21bc1983d0e88685f407f3f81c0e58c095df35d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2025-04-09T05:32:39Z","title_canon_sha256":"79d802bb208e5017c9a590df7db3ee290747f71db6cf9d469a53948b80ebf8b3"},"schema_version":"1.0","source":{"id":"2504.06587","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.06587","created_at":"2026-07-05T10:50:48Z"},{"alias_kind":"arxiv_version","alias_value":"2504.06587v2","created_at":"2026-07-05T10:50:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.06587","created_at":"2026-07-05T10:50:48Z"},{"alias_kind":"pith_short_12","alias_value":"6CTGYFZPCSHQ","created_at":"2026-07-05T10:50:48Z"},{"alias_kind":"pith_short_16","alias_value":"6CTGYFZPCSHQQWBS","created_at":"2026-07-05T10:50:48Z"},{"alias_kind":"pith_short_8","alias_value":"6CTGYFZP","created_at":"2026-07-05T10:50:48Z"}],"graph_snapshots":[{"event_id":"sha256:f985e79a53cbda7ccb65a55be10db80e95ad640b4a4a325db2e607fa1bb45f64","target":"graph","created_at":"2026-07-05T10:50:48Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2504.06587/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"While unencrypted information inspection in physical layer (e.g., open headers) can provide deep insights for optimizing wireless networks, the state-of-the-art (SOTA) methods heavily depend on full sampling rate (a.k.a Nyquist rate), and high-cost radios, due to terrestrial and non-terrestrial networks densely occupying multiple bands across large bandwidth (e.g., from 4G/5G at 0.4-7 GHz to LEO satellite at 4-40 GHz). To this end, we present SigChord, an efficient physical layer inspection system built on low-cost and sub-Nyquist sampling radios. We first design a deep and rule-based interlea","authors_text":"Haoxuan Yuan, Jinbo Peng, Junwen Duan, Yue Gao, Zhe Chen, Zheng Lin","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2025-04-09T05:32:39Z","title":"SigChord: Sniffing Wide Non-sparse Multiband Signals for Terrestrial and Non-terrestrial Wireless Networks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.06587","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":"sha256:4dd31fd88c36af4d2bb3769cf142cd0d3f03f7aa038d99f37c1fa03b59817b78","target":"record","created_at":"2026-07-05T10:50:48Z","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":"2b9f9a2ad22086cdef64a0dfa21bc1983d0e88685f407f3f81c0e58c095df35d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2025-04-09T05:32:39Z","title_canon_sha256":"79d802bb208e5017c9a590df7db3ee290747f71db6cf9d469a53948b80ebf8b3"},"schema_version":"1.0","source":{"id":"2504.06587","kind":"arxiv","version":2}},"canonical_sha256":"f0a66c172f148f08583231500488f47e4f5cdd3c358f478d9cee74f8e3ad98b0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f0a66c172f148f08583231500488f47e4f5cdd3c358f478d9cee74f8e3ad98b0","first_computed_at":"2026-07-05T10:50:48.418082Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:50:48.418082Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lF1aglcG3VwvpETz0zzgYj+l/w1Oz2QwvA8R4ldQ0bzq97JZ/5Ymm58qT9XqIRFgAyPGVPRw9joF3H7muM6WAA==","signature_status":"signed_v1","signed_at":"2026-07-05T10:50:48.418591Z","signed_message":"canonical_sha256_bytes"},"source_id":"2504.06587","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4dd31fd88c36af4d2bb3769cf142cd0d3f03f7aa038d99f37c1fa03b59817b78","sha256:f985e79a53cbda7ccb65a55be10db80e95ad640b4a4a325db2e607fa1bb45f64"],"state_sha256":"f9adfc6750c1484376eecf61d2087333afc4b52032e376ac8484ff5af287dd57"}