{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:KWPKFPCOSL6BLMUN3KCWOBTLU6","short_pith_number":"pith:KWPKFPCO","canonical_record":{"source":{"id":"1901.08142","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-01-23T21:55:05Z","cross_cats_sorted":["cs.IT","math.IT"],"title_canon_sha256":"a3fcee0ac82b05079f538cdfb1678b1a827716df73d1f926495746717312e469","abstract_canon_sha256":"49bed879d2ffec13434494f4bb9d800f20504f8e2b035b7b0c63173ccef54563"},"schema_version":"1.0"},"canonical_sha256":"559ea2bc4e92fc15b28dda8567066ba79ece3a800ee681a28cab39224dab5daf","source":{"kind":"arxiv","id":"1901.08142","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.08142","created_at":"2026-05-17T23:55:37Z"},{"alias_kind":"arxiv_version","alias_value":"1901.08142v1","created_at":"2026-05-17T23:55:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.08142","created_at":"2026-05-17T23:55:37Z"},{"alias_kind":"pith_short_12","alias_value":"KWPKFPCOSL6B","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"KWPKFPCOSL6BLMUN","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"KWPKFPCO","created_at":"2026-05-18T12:33:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:KWPKFPCOSL6BLMUN3KCWOBTLU6","target":"record","payload":{"canonical_record":{"source":{"id":"1901.08142","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-01-23T21:55:05Z","cross_cats_sorted":["cs.IT","math.IT"],"title_canon_sha256":"a3fcee0ac82b05079f538cdfb1678b1a827716df73d1f926495746717312e469","abstract_canon_sha256":"49bed879d2ffec13434494f4bb9d800f20504f8e2b035b7b0c63173ccef54563"},"schema_version":"1.0"},"canonical_sha256":"559ea2bc4e92fc15b28dda8567066ba79ece3a800ee681a28cab39224dab5daf","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:55:37.837259Z","signature_b64":"aQumLD3QH45YVZTNmFj5mgoOygnDvKG0pegM/XlgE+RIxSiOGOw3fuS+FGftg9WdkqGkmIdOGETu2JO50Z1iAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"559ea2bc4e92fc15b28dda8567066ba79ece3a800ee681a28cab39224dab5daf","last_reissued_at":"2026-05-17T23:55:37.836819Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:55:37.836819Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1901.08142","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":"2026-05-17T23:55:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xtZthw9V4O/e5cteXYXTPoHNOZseERQ5ELOPKiptGA/X4WnwG5+m+opQ+V223vsXR4eNGF/FzNeEzA19auLGCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T20:06:22.994881Z"},"content_sha256":"f6588a320091a31bdbe413c5858d73ae3ae105c1edf5921202a063b4850c9376","schema_version":"1.0","event_id":"sha256:f6588a320091a31bdbe413c5858d73ae3ae105c1edf5921202a063b4850c9376"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:KWPKFPCOSL6BLMUN3KCWOBTLU6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Intersymbol and Intercarrier Interference in OFDM Transmissions through Highly Dispersive Channels","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.IT","math.IT"],"primary_cat":"eess.SP","authors_text":"Fernando Cruz-Rold\\'an, Marc Moonen, Paulo Sergio Ramirez Diniz, Wallace Alves Martins","submitted_at":"2019-01-23T21:55:05Z","abstract_excerpt":"This work quantifies, for the first time, intersymbol and intercarrier interferences induced by very dispersive channels in OFDM systems. The resulting achievable data rate for \\wam{suboptimal} OFDM transmissions is derived based on the computation of signal-to-interference-plus-noise ratio for arbitrary length finite duration channel impulse responses. Simulation results point to significant differences between data rates obtained via conventional formulations, for which interferences are supposed to be limited to two or three blocks, versus the data rates considering the actual channel dispe"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.08142","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":""},"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":"2026-05-17T23:55:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AauCAdf3TsnxctnmSjCGlnXUu3pbkXJvcoG38aUR0j5yOfWA1WDsTfvRfKWqcs1s+UcPsyB8mC2qbTWIIExyBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T20:06:22.995233Z"},"content_sha256":"bd52d0030ee4da95369ece2a80f877c6f461cf580e6f2287eaa82586c141ab0c","schema_version":"1.0","event_id":"sha256:bd52d0030ee4da95369ece2a80f877c6f461cf580e6f2287eaa82586c141ab0c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KWPKFPCOSL6BLMUN3KCWOBTLU6/bundle.json","state_url":"https://pith.science/pith/KWPKFPCOSL6BLMUN3KCWOBTLU6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KWPKFPCOSL6BLMUN3KCWOBTLU6/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":"2026-06-06T20:06:22Z","links":{"resolver":"https://pith.science/pith/KWPKFPCOSL6BLMUN3KCWOBTLU6","bundle":"https://pith.science/pith/KWPKFPCOSL6BLMUN3KCWOBTLU6/bundle.json","state":"https://pith.science/pith/KWPKFPCOSL6BLMUN3KCWOBTLU6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KWPKFPCOSL6BLMUN3KCWOBTLU6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:KWPKFPCOSL6BLMUN3KCWOBTLU6","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":"49bed879d2ffec13434494f4bb9d800f20504f8e2b035b7b0c63173ccef54563","cross_cats_sorted":["cs.IT","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-01-23T21:55:05Z","title_canon_sha256":"a3fcee0ac82b05079f538cdfb1678b1a827716df73d1f926495746717312e469"},"schema_version":"1.0","source":{"id":"1901.08142","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.08142","created_at":"2026-05-17T23:55:37Z"},{"alias_kind":"arxiv_version","alias_value":"1901.08142v1","created_at":"2026-05-17T23:55:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.08142","created_at":"2026-05-17T23:55:37Z"},{"alias_kind":"pith_short_12","alias_value":"KWPKFPCOSL6B","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"KWPKFPCOSL6BLMUN","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"KWPKFPCO","created_at":"2026-05-18T12:33:21Z"}],"graph_snapshots":[{"event_id":"sha256:bd52d0030ee4da95369ece2a80f877c6f461cf580e6f2287eaa82586c141ab0c","target":"graph","created_at":"2026-05-17T23:55:37Z","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":"This work quantifies, for the first time, intersymbol and intercarrier interferences induced by very dispersive channels in OFDM systems. The resulting achievable data rate for \\wam{suboptimal} OFDM transmissions is derived based on the computation of signal-to-interference-plus-noise ratio for arbitrary length finite duration channel impulse responses. Simulation results point to significant differences between data rates obtained via conventional formulations, for which interferences are supposed to be limited to two or three blocks, versus the data rates considering the actual channel dispe","authors_text":"Fernando Cruz-Rold\\'an, Marc Moonen, Paulo Sergio Ramirez Diniz, Wallace Alves Martins","cross_cats":["cs.IT","math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-01-23T21:55:05Z","title":"Intersymbol and Intercarrier Interference in OFDM Transmissions through Highly Dispersive Channels"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.08142","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:f6588a320091a31bdbe413c5858d73ae3ae105c1edf5921202a063b4850c9376","target":"record","created_at":"2026-05-17T23:55:37Z","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":"49bed879d2ffec13434494f4bb9d800f20504f8e2b035b7b0c63173ccef54563","cross_cats_sorted":["cs.IT","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-01-23T21:55:05Z","title_canon_sha256":"a3fcee0ac82b05079f538cdfb1678b1a827716df73d1f926495746717312e469"},"schema_version":"1.0","source":{"id":"1901.08142","kind":"arxiv","version":1}},"canonical_sha256":"559ea2bc4e92fc15b28dda8567066ba79ece3a800ee681a28cab39224dab5daf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"559ea2bc4e92fc15b28dda8567066ba79ece3a800ee681a28cab39224dab5daf","first_computed_at":"2026-05-17T23:55:37.836819Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:55:37.836819Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"aQumLD3QH45YVZTNmFj5mgoOygnDvKG0pegM/XlgE+RIxSiOGOw3fuS+FGftg9WdkqGkmIdOGETu2JO50Z1iAQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:55:37.837259Z","signed_message":"canonical_sha256_bytes"},"source_id":"1901.08142","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f6588a320091a31bdbe413c5858d73ae3ae105c1edf5921202a063b4850c9376","sha256:bd52d0030ee4da95369ece2a80f877c6f461cf580e6f2287eaa82586c141ab0c"],"state_sha256":"68db5e4af5b736fd1ff33303e92165cb05682c27a062991bf95e5daabd0fe9d2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UdwW2VMSZ7pVCryY1IAKgycGXkHYX7Szzo4NUpoWcX7GdR/30cxOWZAeh8Eux7AmPAUaDuxLO7LB3yZlrruwDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T20:06:22.997844Z","bundle_sha256":"4eba0a25a558a961edaefbf831336f25db212990afe585e380c04921411a56c0"}}