{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:5IJTD2SDNZBTIJTQKQHB4XPITH","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":"37bb3800bd814fbcd9ece0f7505769ee2c308598d67cc3419475e9f7d35a45d4","cross_cats_sorted":["eess.SP","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2024-10-01T01:24:40Z","title_canon_sha256":"496b179dc2341b99e901067c027b076c9108aabe9d364859e6f5c431ec337339"},"schema_version":"1.0","source":{"id":"2410.00313","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2410.00313","created_at":"2026-07-05T10:52:55Z"},{"alias_kind":"arxiv_version","alias_value":"2410.00313v4","created_at":"2026-07-05T10:52:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2410.00313","created_at":"2026-07-05T10:52:55Z"},{"alias_kind":"pith_short_12","alias_value":"5IJTD2SDNZBT","created_at":"2026-07-05T10:52:55Z"},{"alias_kind":"pith_short_16","alias_value":"5IJTD2SDNZBTIJTQ","created_at":"2026-07-05T10:52:55Z"},{"alias_kind":"pith_short_8","alias_value":"5IJTD2SD","created_at":"2026-07-05T10:52:55Z"}],"graph_snapshots":[{"event_id":"sha256:336a8a00c7a101574d9555d113307cba1297cf6b9c63008bbe30ec687e22f3a8","target":"graph","created_at":"2026-07-05T10:52:55Z","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/2410.00313/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Affine frequency division multiplexing (AFDM), tailored as a superior multicarrier technique utilizing chirp signals for high-mobility communications, is envisioned as a promising candidate for the sixth-generation (6G) wireless network. AFDM is based on the discrete affine Fourier transform (DAFT) with two adjustable parameters of the chirp signals, termed as the pre-chirp and post-chirp parameters, respectively. We show that the pre-chirp counterpart can be flexibly manipulated for additional degree-of-freedom (DoF). Therefore, this paper proposes a novel AFDM scheme with the pre-chirp index","authors_text":"Ertugrul Basar, Guangyao Liu, Jingjing Zhao, Miaowen Wen, Ruiqi Liu, Sheng Chen, Tianqi Mao, Zhaocheng Wang, Zhenyu Xiao","cross_cats":["eess.SP","math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2024-10-01T01:24:40Z","title":"Pre-Chirp-Domain Index Modulation for Full-Diversity Affine Frequency Division Multiplexing towards 6G"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2410.00313","kind":"arxiv","version":4},"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":"sha256:41167205663b1ed09ef13b89f7328422f555e66675ed9c3419fc268d77e0b0cb","target":"record","created_at":"2026-07-05T10:52:55Z","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":"37bb3800bd814fbcd9ece0f7505769ee2c308598d67cc3419475e9f7d35a45d4","cross_cats_sorted":["eess.SP","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2024-10-01T01:24:40Z","title_canon_sha256":"496b179dc2341b99e901067c027b076c9108aabe9d364859e6f5c431ec337339"},"schema_version":"1.0","source":{"id":"2410.00313","kind":"arxiv","version":4}},"canonical_sha256":"ea1331ea436e43342670540e1e5de899f23d4678a7365d2718fb66028e3c90e4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ea1331ea436e43342670540e1e5de899f23d4678a7365d2718fb66028e3c90e4","first_computed_at":"2026-07-05T10:52:55.941574Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:52:55.941574Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"362Hitc8J6IwFFjZZLtcXpO6TysU6ZHpV0HbGZL46KWN7OLjZhh6Dnz/wgxaO7lPyWvmwRbmXVkJO7ZIu7qCDg==","signature_status":"signed_v1","signed_at":"2026-07-05T10:52:55.942046Z","signed_message":"canonical_sha256_bytes"},"source_id":"2410.00313","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:41167205663b1ed09ef13b89f7328422f555e66675ed9c3419fc268d77e0b0cb","sha256:336a8a00c7a101574d9555d113307cba1297cf6b9c63008bbe30ec687e22f3a8"],"state_sha256":"41fd89181e807a2b2563898c9e5d1c94a3f8394f7e1390ff5a33631ac6976848"}