{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:JMR5ZZNUHMRDNQG6Y3ESIW7MNE","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":"c691a66420a313cde548bbd789e5d623d91de2435811bc944ea060eabc78bb28","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.ET","submitted_at":"2026-06-17T12:03:39Z","title_canon_sha256":"543e780a2c1a141a018f0ff0c511093635e1e6cf829971ff8dec62f8f4ee5fc6"},"schema_version":"1.0","source":{"id":"2606.18981","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.18981","created_at":"2026-06-19T16:11:53Z"},{"alias_kind":"arxiv_version","alias_value":"2606.18981v1","created_at":"2026-06-19T16:11:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.18981","created_at":"2026-06-19T16:11:53Z"},{"alias_kind":"pith_short_12","alias_value":"JMR5ZZNUHMRD","created_at":"2026-06-19T16:11:53Z"},{"alias_kind":"pith_short_16","alias_value":"JMR5ZZNUHMRDNQG6","created_at":"2026-06-19T16:11:53Z"},{"alias_kind":"pith_short_8","alias_value":"JMR5ZZNU","created_at":"2026-06-19T16:11:53Z"}],"graph_snapshots":[{"event_id":"sha256:96286fe41705ba9fb242c9687299c946152937ee76e0120c3490ba1ff9a65e3c","target":"graph","created_at":"2026-06-19T16:11:53Z","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/2606.18981/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We introduce QFT$\\rightarrow$FFT, a family of HPC FFT libraries that compute the discrete Fourier transform by executing a quantum Fourier transform (QFT) circuit on classical quantum computer simulators. Input arrays are mapped directly to state amplitudes with explicit normalization/indexing, making QFT a drop-in replacement for FFT primitives. A backend-agnostic planner builds a fused-gate schedule and memory layout adapters to increase arithmetic intensity and reduce memory data movement. We implement this design on top of Google's C++ \\texttt{qsim} and evaluate OpenMP, AVX, and CUDA backe","authors_text":"Frej Larssen, Gilbert Netzer, Ivy Peng, Luca Pennati, Stefano Markidis","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.ET","submitted_at":"2026-06-17T12:03:39Z","title":"Not Your Usual FFT: QFT$\\rightarrow$FFT via Classical Quantum-Circuit Simulation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.18981","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":"sha256:28c22e411aeba46d36ea190c038f44ec1b3722a7bf076f1ee6461c82129254b6","target":"record","created_at":"2026-06-19T16:11:53Z","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":"c691a66420a313cde548bbd789e5d623d91de2435811bc944ea060eabc78bb28","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.ET","submitted_at":"2026-06-17T12:03:39Z","title_canon_sha256":"543e780a2c1a141a018f0ff0c511093635e1e6cf829971ff8dec62f8f4ee5fc6"},"schema_version":"1.0","source":{"id":"2606.18981","kind":"arxiv","version":1}},"canonical_sha256":"4b23dce5b43b2236c0dec6c9245bec693952aa01e68ecf3993da450a284206bc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4b23dce5b43b2236c0dec6c9245bec693952aa01e68ecf3993da450a284206bc","first_computed_at":"2026-06-19T16:11:53.704781Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-19T16:11:53.704781Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IQhnpTixMD7TeEznGKoRLsZs7TrfpUMuv1uCaBeENyGpTD8xmhTTHluf65Wr8nMwtdGD/TEAxs9Z6nMZhfTMCg==","signature_status":"signed_v1","signed_at":"2026-06-19T16:11:53.705166Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.18981","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:28c22e411aeba46d36ea190c038f44ec1b3722a7bf076f1ee6461c82129254b6","sha256:96286fe41705ba9fb242c9687299c946152937ee76e0120c3490ba1ff9a65e3c"],"state_sha256":"f8bb48650caa46c7964eaffec9b338495de787509d6d1c51b936364758e99298"}