{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:F6MON4BBZBZYO3XGPA2WMMUJYY","short_pith_number":"pith:F6MON4BB","canonical_record":{"source":{"id":"2502.04735","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2025-02-07T08:07:33Z","cross_cats_sorted":[],"title_canon_sha256":"0452284ced48e8552a9feba7a5e9a331493c8ce6bf2b27b1ad54ee672faf3286","abstract_canon_sha256":"8f3dfc1fa1f3d867a46d7987db10f2c72767840e5bed93038a95c377bdfce37a"},"schema_version":"1.0"},"canonical_sha256":"2f98e6f021c873876ee67835663289c617ee2be7b6ead6617c234792bff51557","source":{"kind":"arxiv","id":"2502.04735","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.04735","created_at":"2026-07-05T10:10:56Z"},{"alias_kind":"arxiv_version","alias_value":"2502.04735v1","created_at":"2026-07-05T10:10:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.04735","created_at":"2026-07-05T10:10:56Z"},{"alias_kind":"pith_short_12","alias_value":"F6MON4BBZBZY","created_at":"2026-07-05T10:10:56Z"},{"alias_kind":"pith_short_16","alias_value":"F6MON4BBZBZYO3XG","created_at":"2026-07-05T10:10:56Z"},{"alias_kind":"pith_short_8","alias_value":"F6MON4BB","created_at":"2026-07-05T10:10:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:F6MON4BBZBZYO3XGPA2WMMUJYY","target":"record","payload":{"canonical_record":{"source":{"id":"2502.04735","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2025-02-07T08:07:33Z","cross_cats_sorted":[],"title_canon_sha256":"0452284ced48e8552a9feba7a5e9a331493c8ce6bf2b27b1ad54ee672faf3286","abstract_canon_sha256":"8f3dfc1fa1f3d867a46d7987db10f2c72767840e5bed93038a95c377bdfce37a"},"schema_version":"1.0"},"canonical_sha256":"2f98e6f021c873876ee67835663289c617ee2be7b6ead6617c234792bff51557","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:10:56.328415Z","signature_b64":"qr0+6WAIS2XTM33ruf4+Vm7OXw22sWS4sO3H+BWNScLCCb+ABT4j0pCH2VA612wbDqBW2ap190fDhi3ixpgUAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2f98e6f021c873876ee67835663289c617ee2be7b6ead6617c234792bff51557","last_reissued_at":"2026-07-05T10:10:56.327805Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:10:56.327805Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2502.04735","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T10:10:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AQMN+/rjxtAL19UzGbo8mkV++a1Y0tQIZ+w2ZBXBafRzq7fsnbehJmGdY5FADqydnphRxkq6dwVk3+0NOLMwDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T19:46:06.125164Z"},"content_sha256":"433ae0d9eac783ff8f442e6bf824630be19a5c2373d04cb787c4750e3f46b9df","schema_version":"1.0","event_id":"sha256:433ae0d9eac783ff8f442e6bf824630be19a5c2373d04cb787c4750e3f46b9df"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:F6MON4BBZBZYO3XGPA2WMMUJYY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Affine Frequency Division Multiplexing: Extending OFDM for Scenario-Flexibility and Resilience","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"eess.SP","authors_text":"Ali Bemani, Christos Masouros, Fan Liu, Gaojie Chen, Giuseppe Caire, Haoran Yin, Kai Yang, Marios Kountouris, Pei Xiao, Shuangyang Li, Xingyao Zhang, Yanqun Tang, Yuqing Liu, Yu Zhou","submitted_at":"2025-02-07T08:07:33Z","abstract_excerpt":"Next-generation wireless networks are conceived to provide reliable and high-data-rate communication services for diverse scenarios, such as vehicle-to-vehicle, unmanned aerial vehicles, and satellite networks. The severe Doppler spreads in the underlying time-varying channels induce destructive inter-carrier interference (ICI) in the extensively adopted orthogonal frequency division multiplexing (OFDM) waveform, leading to severe performance degradation. This calls for a new air interface design that can accommodate the severe delay-Doppler spreads in highly dynamic channels while possessing "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.04735","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2502.04735/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T10:10:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8lOUdpslgiggm9ehB2VyPwAcGvH0nDHPusDxQCFQK7xrjz4Bln8ykrsMNlgUhZxdtN+ofThDnEdHG/Rzt3d6AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T19:46:06.126084Z"},"content_sha256":"dbd422ef30c2eddd26b28a4fcfc6a6826a5afd8564090e286fd514d1b584c8e9","schema_version":"1.0","event_id":"sha256:dbd422ef30c2eddd26b28a4fcfc6a6826a5afd8564090e286fd514d1b584c8e9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/F6MON4BBZBZYO3XGPA2WMMUJYY/bundle.json","state_url":"https://pith.science/pith/F6MON4BBZBZYO3XGPA2WMMUJYY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/F6MON4BBZBZYO3XGPA2WMMUJYY/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-05T19:46:06Z","links":{"resolver":"https://pith.science/pith/F6MON4BBZBZYO3XGPA2WMMUJYY","bundle":"https://pith.science/pith/F6MON4BBZBZYO3XGPA2WMMUJYY/bundle.json","state":"https://pith.science/pith/F6MON4BBZBZYO3XGPA2WMMUJYY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/F6MON4BBZBZYO3XGPA2WMMUJYY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:F6MON4BBZBZYO3XGPA2WMMUJYY","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":"8f3dfc1fa1f3d867a46d7987db10f2c72767840e5bed93038a95c377bdfce37a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2025-02-07T08:07:33Z","title_canon_sha256":"0452284ced48e8552a9feba7a5e9a331493c8ce6bf2b27b1ad54ee672faf3286"},"schema_version":"1.0","source":{"id":"2502.04735","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.04735","created_at":"2026-07-05T10:10:56Z"},{"alias_kind":"arxiv_version","alias_value":"2502.04735v1","created_at":"2026-07-05T10:10:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.04735","created_at":"2026-07-05T10:10:56Z"},{"alias_kind":"pith_short_12","alias_value":"F6MON4BBZBZY","created_at":"2026-07-05T10:10:56Z"},{"alias_kind":"pith_short_16","alias_value":"F6MON4BBZBZYO3XG","created_at":"2026-07-05T10:10:56Z"},{"alias_kind":"pith_short_8","alias_value":"F6MON4BB","created_at":"2026-07-05T10:10:56Z"}],"graph_snapshots":[{"event_id":"sha256:dbd422ef30c2eddd26b28a4fcfc6a6826a5afd8564090e286fd514d1b584c8e9","target":"graph","created_at":"2026-07-05T10:10:56Z","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/2502.04735/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Next-generation wireless networks are conceived to provide reliable and high-data-rate communication services for diverse scenarios, such as vehicle-to-vehicle, unmanned aerial vehicles, and satellite networks. The severe Doppler spreads in the underlying time-varying channels induce destructive inter-carrier interference (ICI) in the extensively adopted orthogonal frequency division multiplexing (OFDM) waveform, leading to severe performance degradation. This calls for a new air interface design that can accommodate the severe delay-Doppler spreads in highly dynamic channels while possessing ","authors_text":"Ali Bemani, Christos Masouros, Fan Liu, Gaojie Chen, Giuseppe Caire, Haoran Yin, Kai Yang, Marios Kountouris, Pei Xiao, Shuangyang Li, Xingyao Zhang, Yanqun Tang, Yuqing Liu, Yu Zhou","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2025-02-07T08:07:33Z","title":"Affine Frequency Division Multiplexing: Extending OFDM for Scenario-Flexibility and Resilience"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.04735","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":"sha256:433ae0d9eac783ff8f442e6bf824630be19a5c2373d04cb787c4750e3f46b9df","target":"record","created_at":"2026-07-05T10:10:56Z","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":"8f3dfc1fa1f3d867a46d7987db10f2c72767840e5bed93038a95c377bdfce37a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2025-02-07T08:07:33Z","title_canon_sha256":"0452284ced48e8552a9feba7a5e9a331493c8ce6bf2b27b1ad54ee672faf3286"},"schema_version":"1.0","source":{"id":"2502.04735","kind":"arxiv","version":1}},"canonical_sha256":"2f98e6f021c873876ee67835663289c617ee2be7b6ead6617c234792bff51557","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2f98e6f021c873876ee67835663289c617ee2be7b6ead6617c234792bff51557","first_computed_at":"2026-07-05T10:10:56.327805Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:10:56.327805Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qr0+6WAIS2XTM33ruf4+Vm7OXw22sWS4sO3H+BWNScLCCb+ABT4j0pCH2VA612wbDqBW2ap190fDhi3ixpgUAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T10:10:56.328415Z","signed_message":"canonical_sha256_bytes"},"source_id":"2502.04735","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:433ae0d9eac783ff8f442e6bf824630be19a5c2373d04cb787c4750e3f46b9df","sha256:dbd422ef30c2eddd26b28a4fcfc6a6826a5afd8564090e286fd514d1b584c8e9"],"state_sha256":"11713ba7744e79967c86b4fc5c729fc2e0eac799780801238050c564880deefb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"N4cyAy06wmL7cu7TDOSVurcaCl+s8lGpiRONfJ6ajPkjQOq3Z1ZeFoZRZxeSx8fSXCN/CI6EppX8k+K8eWPqBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T19:46:06.132590Z","bundle_sha256":"e848217f10899443aa6713f998a1dfdd00e5bad163456a01667e999065014f88"}}